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dcastros profile

About me

Username:	dcastro
Name:	Not specified
Job title:	Not specified
Affiliation:	Not specified
Web page:	Not specified
Joined:	2007-10-23

What I do

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Interests

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Recent Activity

2008-05-16

15:53: Posted Performance Assessment of the TurboDLL for Satellite Navigation Receivers
15:52: Posted Overbounding The SBAS Integrity Equation
15:35: Posted An Accurate and Low Complex Channel Estimator for OFDM WiMAX
13:04: Posted A simple LTCC balun for WLAN applications using left-handed (LH) transmission lines (TL)
13:04: Posted A comparison of HIPERLAN/2 and IEEE 802.11a physical and MAC layers
13:03: Posted A 500-Mb/s soft-output Viterbi decoder
13:03: Posted 802.11b/g Link Level Measurements for an Outdoor Wireless Campus Network
13:03: Posted The Effect of Imperfect Carrier Frequency Offset Estimation on OFDMA Uplink Transmission
13:02: Posted Multi path Model for Power Line Communication Channel in the Frequency Range of 1MHz-30MHz
13:02: Posted A transmission line model for high-frequency power line communication channel
13:02: Posted Performance analysis of the matrix pair method for blind channel identification
12:49: Posted Uniplanar power dividers using coupled CPW and asymmetrical CPS for MICs and MMICs
12:48: Posted Analysis of convolutional encoders and synthesis of rate-2/n Viterbi decoders
12:38: Posted Advanced Code Acquisition Techniques
12:36: Posted A noncoherent sequential PN code acquisition scheme in DS/SS receivers

2008-05-15

19:52: Posted Rapid acquisition of PN sequences with a new decision logic
19:51: Posted Noncoherent hybrid acquisition of DS/CDMA signals
19:51: Posted Pipelined sequential acquisition in a direct sequence spread spectrum communication system
19:51: Posted An FFT-Based Approach for Fast Acquisition in Spread Spectrum Communication Systems
19:50: Posted Parallel acquisition of PN sequences in Rayleigh fading channel and the application to the multi-carrier CDMA systems
19:50: Posted Noncoherent sequential PN code acquisition using sliding correlation in DS/SS
19:50: Posted New Code Acquisition Techniques in Spread-Spectrum Communication
19:50: Posted Doppler estimation for fast acquisition in spread spectrum communication systems
19:40: Posted Direct sequence spread spectrum parallel acquisition in a fading mobile channel
19:40: Posted Variable dwell-time code acquisition for direct-sequence spread-spectrum systems on time-variant Rayleigh fading channels
19:39: Posted Direct sequence spread spectrum serial acquisition in a nonselective and frequency selective Rician fading channel
19:38: Posted Overview of radiolocation in CDMA cellular systems
19:38: Posted Performance of UWB position estimation based on time-of-arrival measurements
19:38: Posted Optimal decision strategies for acquisition of spread-spectrum signals in frequency-selective fading channels
19:32: Posted Multiple Dwell Serial Search: Performance and Application to Direct Sequence Code Acquisition
19:24: Posted CDMA downlink code acquisition performance in frequency-selective fading channels
19:23: Posted Partial Correlation Properties of Pseudonoise (PN) Codes in Noncoherent Synchronization/Detection Schemes
19:23: Posted Adaptive PN code acquisition using instantaneous power-scaled detection threshold under Rayleigh fading and pulsed Gaussian noise jamming
19:23: Posted Spread-spectrum signal acquisition: Methods and technology
19:23: Posted A PN Code Acquisition Scheme in the Presence of Data Modulation and Doppler Shift
19:22: Posted A New DS/CDMA Code Acquisition Scheme for Reducing the Effect of Residual Code Phase Offset
19:00: Posted Wideband DS-CDMA for next-generation mobile communications systems
18:59: Posted Note on `The calculation of the probability of detection and the generalized Marcum Q-function'
18:58: Posted Analysis of a multicarrier DS-CDMA code-acquisition system
18:58: Posted On coding for block fading channels
18:58: Posted A unified performance analysis of digital communication with dual selective combining diversity over correlated Rayleigh and Nakagami-m fading channels
18:57: Posted A new twist on the Marcum Q-function and its application
18:57: Posted New bounds for the Marcum Q-function
18:57: Posted Integral representation and bounds for Marcum Q-function
18:56: Posted A new method of calculating the generalized Q function (Corresp.)
18:56: Posted Computing the generalized Marcum <e1>Q</e1>-function
18:56: Posted Exponential-type bounds on the generalized Marcum Q-function with application to error probability analysis over fading channels
18:55: Posted The calculation of the probability of detection and the generalized Marcum <e1>Q</e1>-function
18:50: Posted Serial acquisition techniques for DS-CDMA signals in frequency-selective multi-user mobile channels
18:49: Posted DS-SS serial search code acquisition in time-variant channel
18:49: Posted On the distribution function of the spread-spectrum code acquisition time
18:49: Posted Utilization of multipaths for spread-spectrum code acquisition in frequency-selective Rayleigh fading channels
18:48: Posted Performance Evaluation for Phase-Coded Spread-Spectrum Multiple-Access Communication--Part I: System Analysis
18:47: Posted Effects of gain and phase imbalance on sum-difference code tracking loop's performance in spread spectrum systems
18:47: Posted Modified tracking loop for DS spread spectrum systems
18:47: Posted A Modified PN Code Tracking Loop: Its Performance Analysis and Comparative Evaluation
18:47: Posted Analysis of DS-CDMA parallel interference cancellation with phase and timing errors
18:46: Posted Noncoherent sequential PN code acquisition using sliding correlation for chip-asynchronous direct-sequence spread-spectrum communications
18:45: Posted Acquisition of PN code with adaptive threshold for DS/SS communications
18:45: Posted Sequential acquisition of PN sequences for DS/SS communications: design and performance
18:44: Posted Noncoherent sequential acquisition of PN sequences for DS/SS communications with/without channel fading
18:44: Posted A DS-CDMA code acquisition scheme robust to residual code phase offset variation
18:44: Posted Adaptive synchronization for spread spectrum systems
18:44: Posted A low-power digital matched filter for direct-sequence spread-spectrum signal acquisition
18:43: Posted A new code acquisition scheme using divided matched filters for a DS/SS signal with frequency offset
18:43: Posted A code acquisition scheme for DS/CDMA systems
18:43: Posted A new analysis of matched filter pseudo-noise code acquisition for direct sequence spread spectrum system
18:42: Posted Transmission techniques for radio LAN's-a comparative performance evaluation using ray tracing
18:41: Posted A comparison between the performance of FHSS and DSSS for wireless LANs using a 3D ray tracing program
18:41: Posted Noncoherent hybrid parallel PN code acquisition for CDMA mobile communications
18:41: Posted Parallel acquisition in mobile DS-CDMA systems
18:41: Posted Direct-sequence spread-spectrum parallel acquisition in nonselective and frequency-selective Rician fading channels
18:40: Posted A new Gaussian approximation for analysis of a serial acquisition scheme in the presence of fading
18:40: Posted An adaptive filtering PN code acquisition scheme with improved acquisition based capacity in DS/CDMA
18:39: Posted A new analysis of direct-sequence pseudonoise code acquisition on Rayleigh fading channels
18:39: Posted Serial acquisition of DS-CDMA signals in multipath fading mobile channels
18:38: Posted Acquisition time performance of a novel serial search acquisition scheme for chip-asynchronous DS/SS systems
18:38: Posted Matched filter code acquisition of burst and continuous pilot signal in Doppler shift
18:37: Posted Issues in CDMA applications for mobile LEO satellite communications
18:37: Posted New PN code acquisition scheme for CDMA networks with low signal-to-noise ratios
18:37: Posted Spreading codes for direct sequence CDMA and wideband CDMA cellular networks
18:37: Posted Book Reviews - Digital communications and spread spectrum systems
18:36: Posted Code synchronization: a review of principles and techniques
18:36: Posted A new tracking loop for direct sequence spread spectrum systems on frequency-selective fading channels
18:36: Posted Spread-spectrum code acquisition in the presence of Doppler shift and data modulation
18:36: Posted Direct-sequence spread-spectrum parallel acquisition in a fading mobile channel
18:34: Posted Direct sequence spread spectrum code acquisition in mobile fading channel using matched filter with reference filtering
18:34: Posted Direct sequence spread spectrum matched filter acquisition in frequency-selective Rayleigh fading channels
18:33: Posted Probability of acquisition with noncoherent and differentially coherent code acquisition in Doppler
18:33: Posted Code timing acquisition for DS-CDMA in fading channels by differential correlations
18:33: Posted Differentially coherent detection technique for direct-sequence code acquisition in a Rayleigh fading mobile channel
18:32: Posted Code acquisition of DS/SS signals in fading channels using an LMS adaptive filter
18:32: Posted Differentially coherent code acquisition in Doppler
18:31: Posted Incoherent acquisition of DSSS signals in presence of Doppler shifts
16:45: Posted Ultra broadband printed (UBP) antenna
16:30: Posted Local oscillator radiation from active integrated antennas
16:23: Posted HBT active antenna as a self oscillating Doppler sensor
16:11: Posted A retrodirective array using balanced quasi-optical FET mixers with conversion gain
16:11: Posted Artificial neural networks for RF and microwave design - from theory to practice
16:10: Posted An approach for knowledge-aided-design (KAD) of microwave circuits using artificial neural networks
13:23: Posted Reuse within a cell-interference rejection or multiuser detection?
13:23: Posted Zero power consumption Si/SiGe HBT SPDT T/R antenna switch
13:23: Posted Use of direct-modulated/gain-switched optical links in monopulse-type active phased array systems
13:22: Posted Uniplanar active integrated antenna element with tuning stub using an FET and CPW's
13:21: Posted Two-dimensional quasi-optical power-combining arrays using strongly coupled oscillators
13:21: Posted Surface wave excitation of a dielectric slab by a Yagi-Uda slot array antenna-FDTD simulation and measurement
13:21: Posted Microwave imaging of aircraft
13:20: Posted The very large array: Design and performance of a modern synthesis radio telescope
13:19: Posted A self-calibration antenna array system with moving apertures
13:19: Posted Radiation characteristics of a patch antenna on a thin PBG substrate
13:19: Posted Physically-small frequency scanning antenna
13:19: Posted Optical control on 2-element CPW active integrated antenna array with strong coupling
13:18: Posted Moving forward in retrodirective antenna arrays
13:18: Posted Wireless mobile communications at the start of the 21st century
13:18: Posted Mode switch in a two-element active array
13:17: Posted MM wave/FIR twin slot antenna structures
13:17: Posted Millimeter wave direct quadrature converter integrated with antenna for broad-band wireless communications
13:17: Posted Microstrip-fed quasi-Yagi antenna with broadband characteristics
13:16: Posted Electromagnetic insight of Professor Y.T. Lo and his influence on my research career
13:15: Posted A periodic microstrip radial antenna array with a conical beam
13:13: Posted A 60 GHz integrated antenna array for high-speed digital beamforming applications
13:13: Posted High performance K- and Q-band quasi-Yagi linear arrays
13:13: Posted Global time-domain full-wave analysis of microwave FET oscillators and self-oscillating mixers
13:12: Posted FDTD Design of Antennas for Smart Applications: RF Triggering System Case-of-Study
13:12: Posted Free-space RF triggering of an active antenna with series-connected tunneling diodes
13:12: Posted FDTD analysis of a metal-strip-loaded dielectric leaky-wave antenna
13:11: Posted Experiments of device failures in a spatial power-combining array
13:11: Posted Electromagnetic simulation of mode control of a two element active antenna
13:10: Posted Dielectric waveguide-based leaky-wave antenna at 212 GHz
13:10: Posted Coplanar waveguide fed quasi-Yagi antenna
13:10: Posted Class F power amplifier integrated with circular sector microstrip antenna
13:09: Posted Characterization and minimization of mutual coupling between NLC-FED slot antennas
13:09: Posted C-band direct conversion receiver front-end using a resistive FET mixer
12:37: Posted Digital beamforming developments for the joint NASA/Air Force Space Based Radar
12:37: Posted A high-speed adaptive antenna array with simultaneous multiple-beamforming capability
12:37: Posted A wideband inverted F-type antenna for dual-frequency operation
12:36: Posted An experimental Japanese/English interpreting video phone system
12:35: Posted All-optically controlled beam-scanning array for antenna remoting applications
12:33: Posted Active antenna array with optical interaction for application in radar system
12:33: Posted A uniplanar quasi-Yagi antenna with wide bandwidth and low mutual coupling characteristics
12:33: Posted A two-element Yagi-Uda array using tunable slot antenna
12:32: Posted A slot antenna with electronically tunable length
12:32: Posted A Ring-Laser Type Quasi-Optical Oscillator Using Leaky-Wave Antenna
12:32: Posted Retrodirective arrays for wireless communications
12:30: Posted A reconfigurable leaky mode/patch antenna controlled by PIN diode switches
12:30: Posted A novel printed antenna with broadband circular polarization
12:29: Posted A new quasi-Yagi antenna for planar active antenna arrays
12:29: Posted A layered negative resistance amplifier and oscillator using a FET and a slot antenna
12:29: Posted A compact circularly polarized subdivided microstrip patch antenna
12:27: Posted A broadband uniplanar quasi-Yagi active array for power combining
12:27: Posted A broad-band microstrip-to-waveguide transition using quasi-Yagi antenna
12:27: Posted A 2×2 beam-switching active antenna array
12:26: Posted A 16 element quasi-optical FET oscillator power combining array with external injection locking
12:26: Posted High-efficiency FET/microstrip-patch oscillators

2008-05-13

11:45: Posted Frequency offset tracking in OFDM based on multicarrier PLL
11:45: Posted A new frequency detector for orthogonal multicarrier transmission techniques
11:06: Posted Galileo receivers - challenges and performance

2008-05-12

07:27: Posted A new approach to gain-bandwidth problems
07:27: Posted On Design and Performance of Lossy Match GaAs MESFET Amplifiers

2008-05-10

15:56: Posted Terrain-based simulation of IEEE 802.11a and b physical layers on the martian surface
15:39: Posted A low-noise phase-locked loop design by loop bandwidth optimization
15:15: Posted Distributed channel model for HEMT signal and noise parameters
01:05: Posted A novel uniplanar compact PBG structure for filter and mixer applications
01:05: Posted A frequency-domain view of time-domain characterization of clocks and time and frequency distribution systems
01:04: Posted Feedforward linearization of microwave amplifiers
01:04: Posted Linearization: reducing distortion in power amplifiers
01:04: Posted HEMT models for S-parameter and noise parameter extrapolation
01:03: Posted High efficiency transmitter front-ends integrated with planar antennas and PBG
01:03: Posted Microstrip mode suppression ring resonator
01:02: Posted Performance Analysis and Parameter Optimization of DLL and MEDLL in Fading Multipath Environments for Next Generation Navigation Receivers
01:01: Posted The software radio architecture
01:01: Posted Multi-band antennas
01:00: Posted Planar ring monopole antennas for ultra-wideband applications
01:00: Posted Multiband multiple ring monopole antennas
00:59: Posted Near-optimal PLL design for decision-feedback carrier and timing recovery
00:59: Posted Near optimal PLL design for decision feedback carrier and timing recovery
00:59: Posted Mean Time to Lose Lock for a PLL with Loop Delay under Thermal and Phase Noise Conditions
00:58: Posted Effective electromagnetic parameters of novel distributed left-handed microstrip lines
00:58: Posted Propagation characteristics of finite-width conductor-backed coplanar waveguides with periodic electromagnetic bandgap cells
00:57: Posted A novel periodic electromagnetic bandgap structure for finite-width conductor-backed coplanar waveguides
00:56: Posted Optimum design of small-signal microwave amplifiers with specified stability safety margin
00:56: Posted Measurement of the phase and amplitude distributions of coupled oscillator arrays
00:55: Posted Power amplifiers and transmitters for RF and microwave
00:54: Posted Spatial power combining for high-power transmitters
00:54: Posted Stability safety margin based design of low noise microwave amplifiers
00:54: Posted Suppression of even modes in microstrip ring resonators
00:54: Posted Synchronization of oscillators coupled through narrow-band networks
00:53: Posted Use of computationally efficient method of moments in the optimization of printed antennas
00:53: Posted Design of microstrip bandpass filters with a dual-passband response
00:53: Posted Compact wideband bandpass filter
00:52: Posted Compact, low insertion-loss, sharp-rejection, and wide-band microstrip bandpass filters
00:52: Posted EBG-based dual mode resonator filter
00:52: Posted Backscatter properties of dusty medium at X band
00:51: Posted Optimum noise measure configurations for transistor negative resistance amplifiers
00:51: Posted Wideband dual-polarised microstrip patch antenna
00:50: Posted Dual-polarised wideband microstrip antenna
00:50: Posted Effects of output harmonic termination on PAE and output power of AlGaN/GaN HEMT power amplifier
00:49: Posted FDTD analysis of an active antenna
00:49: Posted FDTD analysis of an active antenna
00:49: Posted SNR estimation for non-constant modulus constellations
00:48: Posted Simple SNR estimation methods for QPSK modulated short bursts
00:48: Posted A new SNR's estimator for QPSK Modulations in an AWGN channel
00:48: Posted SNR estimation in frequency domain using circular correlation
00:48: Posted Comparison of four SNR estimators for QPSK modulations
00:47: Posted Dual-band bandpass filter using coupled resonator pairs
00:46: Posted Dual-band bandpass filters using equal-length coupled-serial-shunted lines and Z-transform technique
00:45: Posted Microstrip active antennas
00:45: Posted Microstrip active antennas and arrays
00:45: Posted Methodology for on-chip adaptive jitter minimization in phase-locked loops
00:44: Posted Compact Dual-Band Antenna Using an Anisotropic Metamaterial
00:43: Posted Compact low noise receiving antenna

2008-05-09

17:44: Posted Statistics of atomic frequency standards
17:43: Posted High efficiency S-band class AB push-pull power amplifier with wideband harmonic suppression
17:42: Posted Some considerations for optimal efficiency and low noise in large power combiners
17:42: Posted Photonic bandpass filters with high skirt selectivity and stopband attenuation
17:42: Posted On the study of passive and active slotline ring antennas
17:42: Posted Novel RF front end antenna package
17:41: Posted New FET factive slotline ring antenna
17:41: Posted Miniature low-loss CPW periodic structures for filter applications
17:41: Posted Device simulation for RF applications
17:41: Posted Modeling, analysis, and design of RF LDMOS devices using harmonic-balance device simulation
17:40: Posted New dual-mode dielectric resonator filters
17:40: Posted Novel 2-D photonic bandgap structure for microstrip lines
17:40: Posted Design of a dichroic Cassegrain subreflector
17:13: Posted Cavity-backed active slot loop antenna
17:13: Posted Carrier Frequency Offset Compensation for an Interleaved OFDMA Uplink
17:13: Posted Broad-band power amplifier using dielectric photonic bandgap structure
17:12: Posted Atomic timekeeping and the statistics of precision signal generators
17:12: Posted An efficient frequency offset estimator for timing and frequency synchronization in OFDM systems
17:12: Posted High efficiency class-F RF/microwave power amplifiers
17:11: Posted A shorted elliptical patch antenna for GPS applications
17:11: Posted AlGaN/GaN HFET power amplifier integrated with microstrip antenna for RF front-end applications
17:10: Posted A subharmonic self-oscillating mixer with integrated antenna for 60-GHz wireless applications
17:10: Posted A novel TEM waveguide using uniplanar compact photonic-bandgap (UC-PBG) structure
17:09: Posted 35 GHz integrated circuit rectifying antenna with 33% efficiency
16:47: Posted An application of high-impedance ground planes to phased array antennas
16:47: Posted A novel lowpass microstrip filter using metal-loaded slots in the ground plane
16:46: Posted Comparison of CDMA and OFDM techniques for downstream power-line communications on low voltage grid
16:46: Posted Design considerations for single package radio/spl trade/ (SPR) solution for EGSM/DCS dual band cellular phones
16:46: Posted Advanced signal processing for power line communications
16:45: Posted Filters approximating ideal amplitude and arbitrary phase characteristics
16:45: Posted High speed power line communications
16:45: Posted Change detection for nonlinear systems; a particle filtering approach
16:44: Posted Aperture-coupled patch antenna on UC-PBG substrate
16:44: Posted A new approach for microstrip active antennas using modal F.F.T-algorithm
16:43: Posted COFDM: an overview
16:43: Posted An overview of wireless broadband communications
16:43: Posted Power line communications: an overview
16:43: Posted Anti multipath cellular radio location for DS/CDMA systems using a novel EKF subchip RAKE tracking loop
16:22: Posted Miniaturised microstrip antenna for MMIC applications
16:21: Posted Optimisation method for feedforward linearisation of power amplifiers
16:21: Posted Microwave oscillators and filters based on microstrip ring resonators
16:21: Posted Microwave voltage tuned microstrip ring resonator oscillator
16:21: Posted Some applications of MATHCAD and MATLAB in microwave component synthesis
16:20: Posted Negative resistance low noise, reflection mode transistor amplifiers for microwave and millimetre wave applications
16:20: Posted Aspects of the design of low noise, negative resistance, reflection mode transistor amplifiers
16:20: Posted Optimum Noise Figure of Transistor Amplifiers
16:19: Posted High gain millimetric negative resistance low noise amplifiers
16:19: Posted Transmission line analysis of symmetrical ring resonators
16:19: Posted Novel integrated antenna for LINC power amplifiers
16:19: Posted Frequency doubling active transponder in car windscreen
16:17: Posted Integrated push-push frequency doubling active microstrip transponder
16:17: Posted Frequency Doubling Integrated Push-push Active Microstrip Transponder
16:17: Posted Hangup in Phase-Lock Loops
16:17: Posted A semidistributed HEMT model for accurate fitting and extrapolation of S-parameters and noise parameters
16:16: Posted Compact harmonics-suppressed integrated antenna for LINC transmitters
16:16: Posted An active antenna transponder in a car windscreen
16:16: Posted A novel highly compact low noise active antenna
15:56: Posted FDTD analysis of microwave active antenna including nonlinear model of FET transistor
09:50: Posted A rigorous analysis of a microstripline fed patch antenna
09:50: Posted Impedance characteristics of circular microstrip patches
09:48: Posted Analysis of an infinite array of rectangular microstrip patches with idealized probe feeds
09:45: Posted The dependence of the input impedance on feed position of probe and microstrip line-fed patch antennas
09:44: Posted Analysis of microstrip patch antennas using finite difference time domain method
09:43: Posted Evaluation of input impedance and radar cross section of probe-fed microstrip patch elements using an accurate feed model
09:41: Posted Input impedance of microstrip antennas
09:41: Posted Small microstrip patch antenna
09:39: Posted Integrated active antennas on silicon
09:39: Posted Performance of active antenna oscillator arrays under modulation for communication systems
09:38: Posted Monolithic millimeter-wave IMPATT oscillator and active antenna
09:38: Posted Global Design of an Active Integrated Antenna for Millimeter Wave
09:38: Posted Active antenna integrated with up converter for 5 to 24 GHz band
09:38: Posted Analysis and control of harmonic radiation from active integrated oscillator antennas
09:38: Posted An 18 GHz circularly polarised multilayer active microstrip antenna subarray using MMIC amplifiers
09:37: Posted An overview of the modelling of an active microstrip patch array
09:37: Posted Phased array using the sequential rotation principle: analysis of coupling effects
09:37: Posted An overview of fractal antenna engineering research
09:36: Posted Transponder using self-oscillating mixer and active antenna
09:36: Posted Active antenna approach to high efficiency power amplifiers with EMI reduction
09:36: Posted Concurrent multiband low-noise amplifiers-theory, design, and applications
09:33: Posted Low noise integrated active antenna as image reject mixer (IRM)
09:33: Posted Quasi-optical patch resonator antenna array
09:33: Posted Active antenna using multi-layer ceramic-polyimide substrates for wireless communication systems
09:31: Posted New multilayer techniques actualizing active antenna hardware for wireless communication systems
09:30: Posted Study and design of compact wideband microstrip antennas
09:29: Posted Study of a printed circular disc monopole antenna for UWB systems
09:29: Posted Analyzing and designing of a dual band active antennas
09:27: Posted A 10 GHz integrated class-E oscillating annular ring element for high-efficiency transmitting arrays
09:27: Posted 5-6 GHz monolithically integrated calibratable low-noise downconverter for smart antenna arrays
08:34: Posted A self-mixing active antenna for communication and vehicle identification applications
08:34: Posted Active antenna oscillator arrays in communication systems
08:34: Posted Double-ring active microstrip antenna and self-mixing oscillator in C-band
08:33: Posted High efficiency mode “E” amplifier powers high efficiency active transmitting patch antenna
08:33: Posted Dual-mode double-ring resonators for microstrip band-pass-filter applications
08:32: Posted Modeling of active antenna array coupling effects-load variation method
08:28: Posted A 10 GHz high-efficiency active antenna
08:27: Posted A 10-GHz high-efficiency active antenna sub-array
08:26: Posted Compact active integrated antenna with transistor oscillator and line impedance transformer
08:26: Posted Active antenna integrated with down converter for 24 to 5 GHz bands
08:25: Posted Active antenna with intrinsic harmonic rejection by using a photonic crystal
08:25: Posted Novel active antenna amplifying arrays
08:24: Posted Direct-conversion radio transceivers for digital communications
08:24: Posted Topology of laminated active integrated antenna arrays
07:53: Posted A 73 GHz SiGe SIMMWIC module
07:51: Posted Active Ku-band antenna technology
07:51: Posted Array technology
07:51: Posted Satellite antennas
07:50: Posted Active phase array using injection-locked oscillators
07:50: Posted Integrated microstrip active antennas and their applications
07:50: Posted A tunable second-resonance cross-slot antenna
07:50: Posted HBT active antenna as a self-oscillating Doppler sensor
07:49: Posted Computation of resonant frequency of annular microstrip antenna loaded with multiple shorting posts
07:49: Posted Dual-frequency operation of active concentric circular ring microstrip antenna
07:48: Posted What are active integrated antennas? Can successful CAD be achieved?
07:48: Posted Nonlinear modelling of 1 watt active patch antenna
07:48: Posted An active microstrip antenna for satellite communication
07:47: Posted An X-band self-mixing oscillator antenna for transceiver and spatial power-combining applications
07:47: Posted A circularly polarized FET oscillator active radiating element
07:47: Posted Full-wave analysis of multilayered electromagnetically coupled microstrip active antennas
07:46: Posted Wideband compact antenna for K-band applications
07:46: Posted A novel scheme for reception using an active microstrip antenna
07:46: Posted Ring-coupled-oscillator sequentially rotated active antenna
07:46: Posted A transmit/receive active antenna with fast low-power optical switching
07:45: Posted Metamaterial design via the density method
07:45: Posted Theory of microstrip lines on artificial periodic substrates
07:45: Posted A novel approach for gain and bandwidth enhancement of patch antennas
07:44: Posted Micromachined devices for wireless communications
07:44: Posted Microstrip antennas on synthesized low dielectric-constant substrates
07:43: Posted A highly controllable MESFET active patch antenna/oscillator
07:43: Posted Spatial power combining of circularly polarized active antennas
07:43: Posted Micromachined patch antennas
07:42: Posted Injection- and phase-locking techniques for beam control [antenna arrays]
07:42: Posted Phase-locked-loop control of active microstrip patch antennas
07:42: Posted Array of coupled oscillators generating circular polarization
07:41: Posted A distributed-feedback antenna oscillator
07:40: Posted Coupled oscillator array generating circular polarization [active antenna]
07:39: Posted A Dual Band Circularly Polarised Microstrip Antenna with a Single Feed
07:39: Posted Single-feed dual-band circularly polarised microstrip antenna
07:38: Posted Sub-0.2 dB Noise Figure Wideband Room-Temperature CMOS LNA With Non-50 Ω Signal-Source Impedance
07:38: Posted A single-layer CPW-fed active patch antenna
07:38: Posted Integration of a self-oscillating mixer and an active antenna

2008-05-08

18:18: Posted Support vector fuzzy regression machines
09:59: Posted Propagation measurements for land mobile satellite services
09:56: Posted A comparison of data modulation techniques for land mobile satellite channels
09:54: Posted Performance evaluation of COFDM for digital audio broadcasting. I. Parametric study
09:53: Posted S-band LMS propagation channel behaviour for different environments, degrees of shadowing and elevation angles
09:53: Posted Two- and three-dimensional ray tracing applied to the land mobile satellite (LMS) propagation channel
09:49: Posted Mobile radio: An overview
09:49: Posted Direct-sequence spread spectrum in a shadowed Rician fading and land-mobile satellite channel
09:48: Posted Mobile satellite propagation channel. Part II-a new model and its performance
09:48: Posted Spread-spectrum path diversity in a shadowed Rician fading land-mobile satellite channel
09:47: Posted Mobile satellite propagation channel. Part 1-a comparative evaluation of current models
09:46: Posted The land mobile satellite communication channel-recording, statistics, and channel model
09:46: Posted Land mobile satellite channel measurements and modeling
09:45: Posted Fading Channel Models for the Assessment of GNSS Receivers
09:44: Posted A high resolution model for the satellite-to-indoor channel
09:44: Posted A high resolution model for the aeronautical multipath navigation channel
09:44: Posted Characterizing Multipath from Satellite Navigation Measurements in Urban Environments
09:36: Posted Analysis of detectors for support vector machines and least square
09:34: Posted Adaptive minimum-BER linear multiuser detection for DS-CDMA signals in multipath channels
09:34: Posted Fuzzy support vector machine for regression estimation
09:33: Posted Fuzzy support vector machines for pattern classification
09:33: Posted Support vector machine for multiuser detection in CDMA communications
09:32: Posted Statistical learning theory and state of the art in SVM
09:32: Posted Analysis of support vector machines
09:02: Posted A new synchronized ultra miniature rubidium oscillator
09:02: Posted Optimal Time and Frequency Transfer Using GPS Signals
09:02: Posted A statistical model of flicker noise
09:02: Posted An ultra-miniature rubidium frequency standard
09:01: Posted Time and Frequency (Time-Domain) Characterization, Estimation, and Prediction of Precision Clocks and Oscillators
09:01: Posted Phase noise in oscillators: a unifying theory and numerical methods for characterization
09:01: Posted Clock stability characterization and measurement in telecommunications
09:01: Posted Characterization of Frequency Stability: Analysis of the Modified Allan Variance and Properties of Its Estimate
09:00: Posted Characterization of phase and frequency instabilities in precision frequency sources: Fifteen years of progress
08:30: Posted The omni microstrip antenna: a new small antenna
08:29: Posted A broadband planar quasi-Yagi antenna
08:28: Posted The wide-band matching area for a small antenna
08:27: Posted On the lower bound of the radiation Q for electrically small antennas
08:27: Posted Theory and experiment on microstrip antennas
08:26: Posted Small antennas
07:51: Posted Active Integrated Circulating Antenna based on Non-Reciprocal Active Phase Shifters
07:51: Posted New Radiating Structures based on Applying CRLH Concepts in Short-Circuited Rings
07:50: Posted Multi-frequency microstrip patch antennas based on metamaterial structures
07:50: Posted Multifunction patch antennas filled with metamaterial structures
07:50: Posted A Dual Band Circularly Polarized Antenna based on a Microstrip Patch Filled with Left-Handed Structures
07:49: Posted Mutual coupling effects correction in microstrip arrays for direction-of-arrival (DOA) estimation
07:44: Posted Evolutionary Algorithms Applied to Microstrip Antennas Design
07:44: Posted RF filters and diplexers for wireless system applications: state of the art and trends
07:43: Posted RF MEMS for ubiquitous wireless connectivity. Part II. Application
07:43: Posted High isolation and compact size microstrip hairpin diplexer
07:43: Posted Design and implementation of a compact microstrip Tx/Rx diplexer for UMTS equipments
07:42: Posted Design of an LTCC tri-band transceiver module for GPRS mobile applications
07:42: Posted Design of an LTCC switch diplexer front-end module for GSM/DCS/PCS applications
07:42: Posted Planar microstrip diplexer for multifunctional antenna
07:41: Posted Planar diplexer for microwave integrated circuits
07:41: Posted A procedure for computer-aided design of compact diplexers with folded filters
07:40: Posted An effective strategy for the use of commercial full-wave simulators in the design of waveguide filters and diplexers
07:40: Posted Time-domain and frequency characteristics of ultrawideband signals for radiocommunication systems
07:39: Posted Structures of prototypes for broadband microwave filters, diplexers and matching networks
07:38: Posted A History of Microwave Filter Research, Design, and Development
07:38: Posted Microwave filters-applications and technology
07:38: Posted Ultrabroadband printed (UBP) antenna
07:37: Posted Isolation enhancement of PBG microstrip diplexer patch antenna
07:37: Posted Diplexed dual-polarization proximity coupled patch antenna
07:36: Posted High Isolation Proximity Coupled Multilayer Patch Antenna for Dual-Frequency Operation
07:35: Posted Multifunctional microstrip transmission lines integrated with defected ground structure for RF front-end application
07:35: Posted A novel defected ground structure for planar circuits
07:35: Posted High isolation dual-polarized patch antenna using integrated defected ground structure
07:34: Posted Isolation enhancement of anisotropic UC-PBG microstrip diplexer patch antenna
07:34: Posted A new PBG diplexer for a multiband transceiver antenna system
07:33: Posted Microstrip filters and diplexers for WiMAX applications
07:33: Posted A novel microstrip diplexer design using defected ground structure
07:30: Posted Complementary split ring resonators for microstrip diplexer design
07:29: Posted Compact microstrip bandstop filter using open stub and spurline
07:29: Posted Wide-band low-loss high-isolation microstrip periodic-stub diplexer for multiple-frequency applications

2008-05-07

07:52: Posted Microwave attenuation and cross polarization in dust storms
07:51: Posted Chemical and mineral composition of dust and its effect on the dielectric constant
07:45: Posted Novel fast GPS/GLONASS code-acquisition technique using low update rate FFT
07:43: Posted Rapid code acquisition algorithm employing PN matched filters
07:43: Posted Rapid acquisition of PN signals for DS/SS systems using a phase estimator
07:42: Posted New Fast GPS code-acquisition technique using FFT
07:41: Posted The Research of Side-Band Acquisition for BOC-Modulated Signal
07:40: Posted Maximum likelihood acquisition of time and frequency shift in land mobile DS-CDMA systems
07:40: Posted A Robust Statistical Approach to Non-Line-of-Sightmitigation
07:25: Posted Real-time acquisition and tracking for GPS receivers
07:08: Posted Design and practical implementation of multifrequency RF front ends using direct RF sampling

2008-05-06

19:40: Posted A broad-band uniplanar slotline hybrid ring coupler with over one octave bandwidth
19:40: Posted Low-cost broadband circularly polarized patch antenna
19:39: Posted A dual polarized circular patch rectifying antenna at 2.45 GHz for microwave power conversion and detection
19:39: Posted Active radiating element using FET source integrated with microstrip patch antenna
19:39: Posted Bandpass characteristics of split-modes in asymmetric ring resonators
19:38: Posted Active endfire antenna elements and power combiners using notch antennas
19:38: Posted Resistive mixing and parametric up-conversion of microwave optoelectronic signals in a microstrip ring resonator
19:38: Posted Theoretical and experimental investigation of novel varactor-tuned switchable microstrip ring resonator circuits
19:37: Posted Equivalent lumped elements G, L, C, and unloaded Q's of closed- and open-loop ring resonators
19:37: Posted Novel excitation schemes for the microstrip ring resonator with lower insertion loss
19:37: Posted Network modeling of an aperture coupling between microstrip line and patch antenna for active array applications
19:37: Posted Wideband integrated varactor-tunable active notch antennas and power combiners
19:36: Posted Novel FET active patch antenna
19:35: Posted A W-band monolithic, singly balanced resistive mixer with low conversion loss
19:35: Posted Broadband monolithic passive baluns and monolithic double-balanced mixer
19:34: Posted Method for determination of parasitic resistances in microwave power MESFETs
19:34: Posted Nonlinear-dispersive GaAs FET drain-current model for harmonic balance simulation
19:34: Posted Consequences of port mismatch and finite isolation on power combining
19:34: Posted Analysis of the dual-fed distributed power amplifier
19:33: Posted Multiband power amplifier for multiband wireless applications
19:33: Posted Class-B balanced single-ended dual-fed distributed power amplifier
19:33: Posted Design considerations for the dual-fed distributed power amplifier
19:32: Posted Compact dual-fed distributed power amplifier
19:32: Posted Design and performance of a balanced single-ended dual-fed distributed power amplifier
19:32: Posted Device and circuit approaches for improved linearity and efficiency in microwave transmitters
19:32: Posted Low-profile cavity-backed slot antenna using UC-PBG substrate
19:32: Posted Active quasi-Yagi antenna direct conversion receiver array with digital beamforming
19:31: Posted PBG-assisted gain enhancement of patch antennas on high-dielectric constant substrate
19:31: Posted A low noise active integrated antenna receiver for monopulse radar applications
19:31: Posted A novel high isolation interconnect for broadband mixed signal silicon MMICs
19:30: Posted Realisation of magnetic conducting surface using novel photonic bandgap structure
19:30: Posted High efficiency and broadband excitation of leaky mode in microstrip structures
19:30: Posted Harmonic control in active integrated patch oscillators
19:29: Posted Analysis of losses in 2D photonic crystal waveguides using the 3D finite difference time domain (FDTD) method
19:29: Posted Analysis of harmonic radiation from an integrated active antenna
19:29: Posted Spectral control of integrated active antennas
19:29: Posted FDTD analysis of microstrip configurations incorporating gain blocks
19:28: Posted Schottky diodes for analogue phase shifters in GaAs MMICs
19:28: Posted An integrated active circulator antenna
19:28: Posted Analysis and design of integrated active circulator antennas
19:27: Posted FDTD simulation of active integrated antenna
19:27: Posted Design and simulation of a photonic crystal waveguide filter using the FDTD method
19:26: Posted A comparison of three wide FETs configured as controllable couplers
18:46: Posted Output harmonic termination techniques for AlGaN/GaN HEMT power amplifiers using active integrated antenna approach
18:46: Posted A new amplifier power combining scheme with optimum efficiency under variable outputs
18:45: Posted High Efficiency S-band Class AB Push-Pull Power Amplifier with Wide Band Harmonic Suppression
18:45: Posted Broadband power amplifier integrated with slot antenna and novel harmonic tuning structure
18:45: Posted New microwave and millimeter-wave front-end architectures
18:45: Posted Active integrated antennas for microwave front-end technology
18:44: Posted High-efficiency power amplifier integrated with antenna
18:44: Posted Microwave power amplifier efficiency improvement with a 10 MHz HBT DC-DC converter
18:44: Posted Analysis and design of active antenna arrays
18:44: Posted High efficiency LDMOS power FET for low voltage wireless communications
18:43: Posted Active integrated antennas using the direct-conversion detection
18:43: Posted Zero-IF detection active antenna
18:43: Posted Direct downconversion active antennas for modulation and demodulation
18:43: Posted Dual band antenna mounted on chip case
18:43: Posted Local oscillator radiation from active integrated antennas
18:21: Posted Experiments on injection locking of active antenna elements for active phased arrays and spatial power combiners
18:21: Posted Optical phased array technology
18:21: Posted An active phased array with optical input and beam-scanning capability
18:20: Posted A novel measurement technique for amplifier-type active antennas
18:20: Posted Measurement technique for active microstrip antennas
18:20: Posted Broadband microstrip resonator antennas
18:20: Posted Noise figure measurement of receiving active microstrip antennas
18:19: Posted Broadband microstrip antenna design with the simplified real frequency technique
18:18: Posted Broadband active microstrip array elements
18:18: Posted Broadband active microstrip antenna design with the simplified real frequency technique
18:18: Posted Cavity induced polarisation switching in a slot-loop active antenna
18:18: Posted Broadband microstrip patch antenna on micromachined silicon substrates
18:17: Posted Broadband microstrip patch antenna
18:17: Posted Cavity control of active integrated antenna oscillators
18:17: Posted Advanced and intelligent RF front end technology
18:17: Posted Integration of electronics and antennas
18:16: Posted Microstrip patch antenna with integrated adaptive tuning
18:16: Posted Adaptive tuning of microstrip antennas

2008-05-05

21:26: Posted Push-pull power amplifier integrated with quasi-Yagi antenna for power combining and harmonic tuning
21:25: Posted Analysis of radiation from active microstrip antennas
21:25: Posted Measurements of on-body propagation characteristics
21:25: Posted Characterization of on-body communication channels
21:25: Posted Oscillator stability and phase noise reduction in phase locked active microstrip patch antenna
21:24: Posted Active integrated antenna oscillator stability and phase noise reduction
15:52: Posted On the robustness of ultra-wide bandwidth signals in dense multipath environments
15:51: Posted The Effects of Time Delay Spread on Portable Radio Communications Channels with Digital Modulation
15:49: Posted Effects of Multipath Propagation on Digital Radio
15:19: Posted A PC-based software receiver using a novel front-end technology
15:12: Posted A novel fully integrated transmitter front-end with high power-added efficiency
15:12: Posted Low IMD, antenna combined, circularly polarised, integrated antenna
15:11: Posted Recent developments in RF front ends based upon active antenna concepts
15:11: Posted Active integrated antennas for new RF architectures
15:10: Posted Compact power combining patch antenna
15:10: Posted New RF front end technologies
09:07: Posted Impedance matching in active integrated antenna receiver front end design
09:06: Posted Novel architectures for high-efficiency amplifiers for wireless applications
09:06: Posted Progress in Active Integrated Antennas
09:05: Posted Active patch antennas integrated with Rx/Tx front end
09:05: Posted High-efficiency push-pull power amplifier integrated with quasi-Yagi antenna
09:04: Posted RF Systems Based on Active Integrated Antennas
09:03: Posted Developments in active integrated antennas
09:01: Posted Active integrated antennas for wireless applications
09:01: Posted Hybrid analysis/design method for active integrated antennas
09:00: Posted Active integrated antennas
09:00: Posted Low cost and compact active integrated antenna transceiver for system applications
09:00: Posted Active integrated antennas

2008-04-24

15:48: Posted F-QPSK-A superior modulation for future generations of high-capacity microcellular PCS systems
09:48: Posted A Performance Comparison of Code Acquisition Techniques in DS-CDMA System

2008-04-23

19:38: Posted A design for OFDMA receiver
19:31: Posted Asymptotically Efficient Reduced Complexity Frequency Offset and Channel Estimators for Uplink MIMO-OFDMA Systems
19:29: Posted A Baseband Transceiver for IEEE 802.16e-2005 MIMO-OFDMA Uplink Communications
19:26: Posted Synchronization Techniques for Orthogonal Frequency Division Multiple Access (OFDMA): A Tutorial Review
19:26: Posted A tutorial on multiple access technologies for beyond 3G mobile networks
19:25: Posted On the uplink synchronization of OFDMA systems
19:25: Posted Joint frequency offset and channel estimation in the OFDMA uplink: Cramer-Rao bounds and training sequence design
19:22: Posted Multiuser interference cancellation receivers for OFDMA uplink communications with carrier frequency offset
19:21: Posted Optimum subcarrier assignment for OFDMA uplink
19:19: Posted Analysis of two receiver schemes for interleaved OFDMA uplink
19:19: Posted User separation and frequency-time synchronization for the uplink of interleaved OFDMA
19:15: Posted Lifting the limits on high speed wireless data access using antenna arrays
19:14: Posted Compact integrated diversity antenna for wireless communications
19:14: Posted Analysis of the uplink of an asynchronous multi-user DMT OFDMA system impaired by time offsets, frequency offsets, and multi-path fading
19:13: Posted A model for the multipath delay profile of fixed wireless channels
18:54: Posted Joint Channel Estimation for WiMAX by Preamble and Uneven Pilots
18:54: Posted Direct position determination of OFDM signals
18:54: Posted An Efficient Multi-Mode Channel Tracking Scheme under Different Velocities in OFDM Systems
18:53: Posted An Adaptive Channel Estimation Method Based on Doppler Shift Estimation in mobile WIMAX
18:53: Posted A Comparison of Frequency Offset Synchronization Algorithms for WiMAX OFDM Systems
18:48: Posted WiMax and Mesh networking in the home
18:41: Posted Broadband powerr amplifier distortion cancellation with model estimation inthe receiver
11:11: Posted Channel-independent synchronization of orthogonal frequency division multiple access systems

2008-04-22

19:11: Posted New considerations in the design of microstrip antennas
19:10: Posted Active integrated antennas
19:07: Posted Integrated active antenna with full duplex operation
19:06: Posted Progress in active integrated antennas and their applications
19:05: Posted Integrated active antenna with simultaneous transmit-receive operation
14:01: Posted Deterministic multiuser carrier-frequency offset estimation for interleaved OFDMA uplink
12:28: Posted Capacity improvement for uplink OFDMA
12:28: Posted A novel iterative receiver for uplink OFDMA
12:28: Posted Initial uplink synchronization and power control (ranging process) for OFDMA systems
12:28: Posted On the effects of user mobility on the uplink an OFDMA system
12:27: Posted Performance analysis of OFDMA uplink systems with symbol timing misalignment
11:52: Posted Fast burst synchronisation technique for OFDM-WLAN systems
11:51: Posted A novel timing estimation method for OFDM systems
11:27: Posted A simple preamble for OFDM timing offset estimation
11:26: Posted A preamble-aided symbol and frequency synchronization scheme for OFDM systems

2008-04-21

08:26: Posted 4th-generation wireless infrastructures: scenarios and research challenges

2008-04-20

17:37: Posted Performance of rate compatible punctured Turbo-codes for mobile radio applications
17:35: Posted On the performance of hybrid FEC/ARQ systems using rate compatible punctured turbo (RCPT) codes
17:32: Posted The Spread Spectrum Concept
17:25: Posted Incorporating the Fresnel Zone Theory in Ray Tracing for Propagation Modelling of Fixed Wireless Access Channels
17:24: Posted Ray Tracing with Fresnel Zone Theory for Fixed Wireless Access Channel Characterization
17:24: Posted Broadband wireless access

2008-04-18

12:09: Posted Development and performance evaluation of mobile WiMAX testbed
12:05: Posted Frame Synchronization Techniques
10:17: Posted Timing Synchronization for Interleaved OFDMA Uplink System
10:16: Posted A Novel Timing Synchronization Method for Localized OFDMA Uplink System

2008-04-17

16:04: Posted Performance of concatenated FEC under fading channel in wireless-MAN OFDM system