A 3-8 GHz Broadband Low Power Mixer

Abstract

A 3{8GHz broadband mixer is presented in this paper. This broadband mixer is low power and high conversion gain. It provides current reuse and ac-coupled folded switching. This mixer is designed in TSMC 0.18-"m CMOS technology. This broadband mixer achieves simulated conversion gain of 9 § 1:5dB, a single sideband noise flgure lower than 15.2dB and IIP3 batter than i7dBm. From 3{8GHz, at supply voltage of 1.5V power consumption without output bufier is 3.27mW and power consumption with bufier is about 8mW. The chip area is 1079"m £ 761"m.