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JSSC 2008第6期RF & Wireless65nmLNA

Wideband Balun-LNA With Simultaneous Output Balancing Noise-Canceling and Distor

提出一种宽带巴伦低噪声放大器,结合共栅和共源级实现噪声与失真抵消。
65nm CMOS, 1.2V, 15dB增益, NF 3.5dB, IIP2 +20dBm, IIP3 0dBm, 21mW功耗
宽带巴伦低噪声放大器噪声抵消失真抵消多标准无线电
采用共栅级与导纳缩放共源级结合实现平衡操作
同时抵消共栅级的噪声和失真
深亚微米晶体管共源级实现高IIP2
Abstract
An inductorless low-noise amplifier (LNA) with active balun is proposed for multi-standard radio applications between 100 MHz and 6 GHz. It exploits a combination of a common-gate (CG) stage and an admittance-scaled common-source (CS) stage with replica biasing to maximize balanced operation, while simul- taneously canceling the noise and distortion of the CG-stage. In this way, a noise figure (NF) close to or below 3 dB can be achieved, while good linearity is possible when the CS-stage is carefu