A 2.4 GHz Low Power Folded Down-conversion Quadrature Mixer in 0.18-μm CMOS

摘要：

This paper describes a 1.8-V I/Q down mixer operating in 2.4GHz band for the Wireless Sensor Network (WSN) application using TSMC 0.18-μm RF CMOS process. The double-balanced mixer is modified based on the conventional Gilbert cell. It is composed of I/Q shared transconductance stage, folded switching stage, nMOS load stage, and common-mode feedback (CMFB) circuits. The mixer achieves a conversion gain of 13.84 dB with an input 1-dB compression point (IP1dB) of -3.66 dBm. It also achieves a single side band (SSB) noise figure (NF) of 11.55 dB. The mixer acquires the third order input referred intercept point (IIP3) of 2.16 dBm. It consumes 1.96 mA of current from a 1.8-V power supply.

关键词： WSN application low power folded mixer CMFB nMOS load 0.18-μm CMOS

作者: Dongjun SHEN Zhiqun LI

作者单位: Institute of RF- & OE-ICs, Southeast University, 210096 Nanjing, China Research Center of Sensor Network, Southeast University, 214135 Wuxi, China

会议类型: 国际会议

会议名称: 2011年无线通信与信号处理国际会议(WCSP 2011)

会议地点: 南京

会议语种:英文

页码: 1-4

在线出版日期: 2011-11-09（万方平台首次上网日期，不代表论文的发表时间）