首页|期刊导航|半导体学报（英文版）|A wideband current-commutating passive mixer for multi-standard receivers in a 0.18μm CMOS
半导体学报（英文版）2013，Vol.34Issue(1)：74-82,9.DOI:10.1088/1674-4926/34/1/015003
A wideband current-commutating passive mixer for multi-standard receivers in a 0.18μm CMOS
A wideband current-commutating passive mixer for multi-standard receivers in a 0.18μm CMOS
摘要
Abstract
This paper reports a wideband passive mixer for direct conversion multi-standard receivers.A brief comparison between current-commutating passive mixers and active mixers is presented.The effect of source and load impedance on the linearity of a mixer is analyzed.Specially,the impact of the input impedance of the transimpedance amplifier (TIA),which acts as the load impedance of a mixer,is investigated in detail.The analysis is verified by a passive mixer implemented with 0.18μm CMOS technology.The circuit is inductorless and can operate over a broad frequency range.On wafer measurements show that,with radio frequency (RF) ranges from 700 MHz to 2.3 GHz,the mixer achieves 21 dB of conversion voltage gain with a-1 dB intermediate frequency (IF) bandwidth of 10 MHz.The measured IIP3 is 9 dBm and the measured double-sideband noise figure (NF) is 10.6 dB at 10 MHz output.The chip occupies an area of 0.19 mm2 and drains a current of 5.5 mA from a 1.8 V supply.关键词
CMOS/current-commutating passive mixer/linearity/source and load impedance/multi-standard receiver/widebandKey words
CMOS/current-commutating passive mixer/linearity/source and load impedance/multi-standard receiver/wideband引用本文复制引用
Bao Kuan,Fan Xiangning,Li Wei,Wang Zhigong..A wideband current-commutating passive mixer for multi-standard receivers in a 0.18μm CMOS[J].半导体学报（英文版）,2013,34(1):74-82,9.基金项目
Project supported by the National Science and Technology Major Project (No.2010ZX03007-002-01) and the State Key Development Program for Basic Research of China (No.2010CB327404). （No.2010ZX03007-002-01）
