Fri, 08 Aug 2008 19:45:45 BST CiteULike: dcastros Weiss http://www.citeulike.org/user/dcastro/author/Weiss CiteULike.org en-gb Copyright © 2004-2008 citeulike.org http://www.citeulike.org/user/dcastro/article/3085482 <i>Antennas and Propagation, IEEE Transactions on, Vol. 29, No. 1. (1981), pp. 157-166.</i><br /><br />A description is given of an antenna consisting of an interconnected wire grid formed by etching metallic lines on a dielectric sheet backed by a metallic ground plane. The theory of operation, analytical model, and experimental findings for this approach to a printed array are described. The device is low cost, light weight, and has sufficient bandwidth to be of use in a variety of applications. An analytical model is developed which establishes transmission line equivalent circuits for the wire grid elements. Current distributions determined from the model are shown to predict accurately the measured pattern performance of a typical implementation. The bandwidth as established by various pattern parameters is quantitatively assessed. Particular emphasis is given to methods of amplitude control through control of line impedances. A particular design implementation is presented for a five-wavelength circular array with independent quadrant control. Measured results from this configuration are compared to theory. The wire grid microstrip antenna R Conti J Toth T Dowling J Weiss Antennas and Propagation, IEEE Transactions on, Vol. 29, No. 1. (1981), pp. 157-166. 2008-08-05T12:34:50-00:00 1981 Antennas and Propagation, IEEE Transactions on 29 1 157 166 mesh microstrip patch http://www.citeulike.org/user/dcastro/article/2782069 <i>Frequency Control, 1991., Proceedings of the 45th Annual Symposium on (1991), pp. 667-678.</i><br /><br />The authors discuss the characterization of frequency standards, clocks, and associated systems. These associated systems may include time and frequency measurement systems, time and frequency transmissions systems, time and frequency comparison systems, and telecommunication networks. No single characterization is suitable. However, three time-domain statistical measures cover most of the situations encountered in actual practice. The selection of the appropriate time-domain measure is a function of the types of noise characteristic of the process being investigated, as well as whether the time stability or the frequency stability is to be studied. The three statistical measures are recast into the frequency domain. The authors treat each of these measures as a digital filter and study their transfer functions. This type of measure is related to the passband characteristics of a given system A frequency-domain view of time-domain characterization of clocks and time and frequency distribution systems DW Allan MA Weiss JL Jespersen doi:10.1109/FREQ.1991.145966 Frequency Control, 1991., Proceedings of the 45th Annual Symposium on (1991), pp. 667-678. 2008-05-10T00:03:31-00:00 1991 Frequency Control, 1991., Proceedings of the 45th Annual Symposium on 667 678 characterisation clock frequency time http://www.citeulike.org/user/dcastro/article/2774610 <i>Microwave Symposium Digest, 1999 IEEE MTT-S International, Vol. 2 (1999), pp. 663-666 vol.2.</i><br /><br />This work discusses the use of a microstrip-fed slot antenna to directly provide the necessary output match and harmonic tuning for a 10 GHz class-E power amplifier. There is no matching circuit at the output of the amplifier since the slot is designed to provide the correct impedance at the fundamental frequency and to present an open circuit at the second harmonic. This eliminates losses in the matching circuit and decreases circuit area. Since the class-E amplifier requires a complex output load, the designed slot antenna is not a resonant structure. The device used is an Alpha AFM04P2 MESFET, which has a maximum output power of about 21 dBm. The measured performance of the active antenna shows 74% drain efficiency, 62% power-added-efficiency (PAE), and 20 dBm output power at 10 GHz, at 5 dB gain compression. The PAE is greater than 50% in a 400 MHz bandwidth A 10 GHz high-efficiency active antenna MD Weiss Z Popovic doi:10.1109/MWSYM.1999.779848 Microwave Symposium Digest, 1999 IEEE MTT-S International, Vol. 2 (1999), pp. 663-666 vol.2. 2008-05-09T07:26:08-00:00 1999 Microwave Symposium Digest, 1999 IEEE MTT-S International 2 663 666 vol.2 active antenna efficiency high http://www.citeulike.org/user/dcastro/article/2709649 <i>Signal Processing Advances in Wireless Communications, 2007. SPAWC 2007. IEEE 8th Workshop on (2007), pp. 1-5.</i><br /><br />Direct Position Determination (DPD) has recently been proposed Direct position determination of OFDM signals Ofer Bar-Shalom Anthony Weiss doi:10.1109/SPAWC.2007.4401287 Signal Processing Advances in Wireless Communications, 2007. SPAWC 2007. IEEE 8th Workshop on (2007), pp. 1-5. 2008-04-23T17:53:32-00:00 2007 Signal Processing Advances in Wireless Communications, 2007. SPAWC 2007. IEEE 8th Workshop on 1 5 ofdm position http://www.citeulike.org/user/dcastro/article/2067706 <i>(2007), pp. 244-251.</i> Benefits and limitations of spatial reuse in wireless mesh networks Sebastian Max Erik Weiss Guido Hiertz doi:10.1145/1298126.1298170 (2007), pp. 244-251. 2007-12-06T16:59:03-00:00 2007 244 251 ACM mesh network space wireless