Browsing by Author "Huang, G.-W."

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Sige BiCMOS subharmonic Gilbert mixer using lumped-element ratrace couplers
(2007-08-01)
Tseng, S.-C.
;
Meng, C. C.
;
Huang, G.-W.
;
電信工程研究所
;
Institute of Communications Engineering
A single-ended down-conversion subharmonic miser is implemented using 0.35-mu m SiGe BiCMOS technology. Two lumped-element rat-race couplers are applied to generate differential LO and RF signals. This single-ended rat-race mixer has the conversion gain of 25 dB, -90-dB 2xLO-to-RF isolation and -78-dB 2xLO-to-IF isolation at the RF frequency of 10 GHz. The input return loss is about -10 dB. (c) 2007 Wiley Periodicals, Inc.