A Gilbert mixer with high gain for 18 GHz application

The aim of this paper is presented A Gilbert mixer with passive balun for 18 GHz application. It was used Taiwan Semiconductor provided by TSMC CMOS 0.18 µm process. We proposed mixer consists of Gilbert Cell, RF and LO stage matching and the IF buffer amplifier. Finally, at the operation voltage of Vdd = 1.8 V, RF frequency =18 GHz, LO frequency =17 GHz, the conversion gain is about 11.676 dB, input P1dB and power consumption are about −15 dBm and 54 mW. The chip size including all testing pads is 0.82 × 0.79 mm 2 .