A K-band monolithic CPW upconverter utilizing a source mixing concept

This paper concerns the design consideration and performance of a CPW upconverter MMIC for K-band wireless system applications. The upconverter consists of an FET as a "3-port" mixing element, IF, LO, and RF matching networks, and an output filter. Including a 3 dB pass-band insertion loss of the filter, the upconverter exhibits a maximum conversion gain of 6 dB with a port-to-port isolation better than 20 dB.<
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