Thu, 24 Jul 2008 23:22:41 BST CiteULike: dcastros Tan http://www.citeulike.org/user/dcastro/author/Tan CiteULike.org en-gb Copyright © 2004-2008 citeulike.org http://www.citeulike.org/user/dcastro/article/2782036 <i>Electronics Letters, Vol. 30, No. 21. (1994), pp. 1772-1774.</i><br /><br />Unwanted even order modes in tunable microstrip ring resonators can be suppressed by providing a low resistance path to ground at an appropriate point on the ring. This suppression method is simple to implement, and has minimal effect on the Q factor and the resonance frequency of the wanted modes Suppression of even modes in microstrip ring resonators DK Paul P Gardner KP Tan Electronics Letters, Vol. 30, No. 21. (1994), pp. 1772-1774. 2008-05-09T23:51:31-00:00 1994 Electronics Letters 30 21 1772 1774 microstrip resonator http://www.citeulike.org/user/dcastro/article/2776126 <i>Electronics Letters, Vol. 30, No. 21. (1994), pp. 1770-1771.</i><br /><br />A microwave oscillator incorporating a varactor-tuned microstrip ring resonator was developed using a single packaged varactor diode which together with other required components was mounted inside the ring structure. A tuning bandwidth of ~30% was achieved with forward and reverse biasing of the varactor diode. The measured phase noise of the new oscillator was found to be better than -90 dBc kHz from the carrier Microwave voltage tuned microstrip ring resonator oscillator P Gardner DK Paul KP Tan Electronics Letters, Vol. 30, No. 21. (1994), pp. 1770-1771. 2008-05-09T15:20:58-00:00 1994 Electronics Letters 30 21 1770 1771 microwave oscillator resonator ring http://www.citeulike.org/user/dcastro/article/2762241 <i>Microwave and Guided Wave Letters, IEEE [see also IEEE Microwave and Wireless Components Letters], Vol. 4, No. 9. (1994), pp. 301-302.</i><br /><br />We report the design, measured and simulated performance of a novel W-band monolithic, singly balanced resistive FET mixer utilizing 0.1-μm pseudomorphic AlGaAs/InGaAs on GaAs HEMT technology. At an LO drive of +8 dBm, this mixer has exhibited a minimum measured conversion loss of 12.8 dB, nearly a 10 dB improvement over previously reported data in this frequency range. Furthermore, the mixer figure of merit, defined as P_1-dB,in-P_LO, is at least +2 dBm, which is nominally 6 dBm better than that of comparable diode mixers at W-band. These results indicate the excellent potential of this mixer for integration with other circuit components in fully monolithic subsystems A W-band monolithic, singly balanced resistive mixer with low conversion loss KW Chang EW Lin H Wang KL Tan WH Ku doi:10.1109/75.311514 Microwave and Guided Wave Letters, IEEE [see also IEEE Microwave and Wireless Components Letters], Vol. 4, No. 9. (1994), pp. 301-302. 2008-05-06T18:33:22-00:00 1994 Microwave and Guided Wave Letters, IEEE [see also IEEE Microwave and Wireless Components Letters] 4 9 301 302 balanced mixer