A Low-Power Monolithic Reconfigurable Direct-Conversion Receiver RF Front-end for 802.1 la/b/g pplications

摘要：

A low power monolithic reconfigurable direct-conversion receiver RF front-end for 802.1 la/b/g applications is presented. It consists of a reconfigurable LNA and a high linearity quadrature down-converter. The LNA could be switched between two operation bands by utilizing a fully-differential switchable inductor. With a positive feedback,the noise figure of the common gate LNA is lowered down. The quadrature down-converter could be shared for multi-band multi-mode applications due to its wide band characteristics. The RF front-end has been implemented in 180nm CMOS process and the experimental results show that the front-end could achieve a NF of 3.6dB at 2.4GHz and 6.6dB at 5GHz while providing a gain of 33dB at 2.4GHz and 24 dB at 5GHz. The front-end consumes 18mW power and the die area is 1.2mm×1mm.

关键词： CMOS reconfigurable RF direct conversion receiver switchable inductor

作者: Guoqin Yao Baoyong Chi Chun Zhang Zhihua Wang

作者单位: Institute of Microelectronics,Tsinghua University,100084,Beijing,China

会议类型: 国际会议

会议名称: 9th International Conference on Solid-State and Integrated-Circuit Technology(第9届固态和集成电路国际会议)

会议地点: 北京

会议语种:英文

页码: 1460-1463

在线出版日期: 2008-10-20（万方平台首次上网日期，不代表论文的发表时间）