%0 Journal Article
%T A CMOS Wideband Variable Gain LNA with Novel Gain Control Method<br>一种具有新型增益控制技术的CMOS宽带可变增益LNA
%A Chen Fei-hua Duo Xin-zhong Sun Xiao-wei
%A <br>谌斐华
%A 多新中
%A 孙晓玮
%J 电子与信息学报
%D 2010
%I 
%X Multi-standard convergence for high speed ultra-wideband wireless communication leads the evolution for future RF devices. In this paper a CMOS wideband low noise amplifier (LNA) with novel gain control method is presented. In the first stage shunt-resistor feedback is used for wideband input matching, while for low noise performance noise cancelling circuit is adopted. A novel 6-bit digital programmable gain control circuit is exploited and adopted in the second stage for variable gain. Fabricated with SMIC 0.13μm RF CMOS process, die area is 0.76mm2. Measured results show that the LNA operates in 1.1-1.8 GHz frequency band, and the maximum and minimum gain are 21.8 dB and 8.2 dB, 7 gain modes in all. Minimum noise figure is 2.7 dB. Typical IIP3 is -7 dBm.
%K RF CMOS
%K Low Noise Amplifier (LNA)
%K Noise cancelling
%K Wideband
%K Variable gain<br>RF
%K CMOS
%K 低噪声放大器(LNA)
%K 噪声消除
%K 宽带
%K 可变增益
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=1319827C0C74AAE8D654BEA21B7F54D3&jid=EFC0377B03BD8D0EF4BBB548AC5F739A&aid=222FE995DB1B54A757C889102A2D9399&yid=140ECF96957D60B2&vid=9971A5E270697F23&iid=708DD6B15D2464E8&sid=90D223B28BEA74B2&eid=AE46F0257161A083&journal_id=1009-5896&journal_name=电子与信息学报&referenced_num=0&reference_num=9