A 15-50 GHz broadband resistive FET ring mixer using 0.18-µm CMOS technology

Abstract

A compact and broadband 15 to 50 GHz resistive FET ring mixer using 0.18-μm CMOS technology is presented in this letter. This mixer exhibits a conversion loss of 13-17 dB and the port to port isolations of better than 30 dB from 15-50 GHz for both down and up-conversion with a chip size of 0.2 mm <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sup> . Besides, this mixer has an input P <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">1dB</sub> of 4-10 dB and an IF bandwidth of 5 GHz. To the author's knowledge, this is the highest frequency MMIC resistive FET ring mixer using CMOS technologies to date.