题目/Title：
                        A Dual-Band Reconfigurable Direct-Conversion Receiver RF Front-end

作者/Author：姚国钦,池保勇,张春,王志华
                        Guoqin Yao,Baoyong Chi,Chun Zhang,Zhihua Wang

期刊/Journal：半导体学报 Chinese Journal of Semiconductors

年份/Issue Date：2009

卷（期）及页码/Volume（No.）&pages：No.9, pp. 91 - 95

摘要/Abstract：

A dual-band reconfigurable wireless receiver RF front-end is presented. The receiver RF front-end is based on the direct-conversion principle and consists of a low noise amplifier (LNA) and a down-converter. By utilizing the compact switchable on-chip symmetrical inductor, the RF front-end could be switched between two operation frequency bands without extra die area cost. This RF front-end has been implemented in 180nm CMOS process and the measured results show that the front-end could provide a gain of 25dB at 2.2GHz and 18.8 dB at 4.5GHz. The whole front-end consumes 12mA current at 1.2V voltage supply for LNA and 2.1mA current at 1.8V for mixer, with a die area of 1.2mm 1mm.