← 返回 JSSC 论文列表JSSC 2008第11期RF & Wireless0.13μmEqualizer
Digital Adaptive IIP2 Calibration Scheme for CMOS Downconversion Mixers
本文提出了一种基于自适应数字校准的RF下变频混频器二阶互调失真消除方案。
0.13μm CMOS, 1.5V
自适应校准二阶互调失真CMOS混频器LMS均衡器直接转换接收机
▸采用低复杂度LMS均衡器
▸通过差分模式与共模失真相关性优化模拟IP2校准电路
▸1.5V低压供电的可调IQ混频器原型
Abstract
bert Weigel , Fellow, IEEE
Abstract—This paper presents a cancellation scheme of second
order intermodulation distortion based on adaptive digital cali-
bration of the RF downconversion mixer. The system utilizes a
low-complexity LMS-based equalizer , which correlates differen-
tial mode distortion with common mode distortion to estimate op-
timum settings of the analog IP2 calibration circuit. A tunable IQ
mixer prototype, fabricated in a 0.13
m RF CMOS technology
and operating under low voltag