Analysis and design of a high-linearity receiver RF front-end with an improved 25%-duty-cycle LO generator for WCDMA/GSM applications

作     者：Hu Song Li Weinan Huang Yumei Hong Zhiliang 胡嵩;李伟男;黄煜梅;洪志良

作者机构：State Key Laboratory of ASIC and SystemFudan UniversityShanghai 201203China 

基　　金：supported by the National Science and Technology Major Project of China(No.2009ZX01031-003-002) the National High Technology Research and Development Program of China(No.2009AA011605) 

出 版 物：《Journal of Semiconductors》 (半导体学报（英文版）)

年 卷 期：2012年第33卷第2期

页      码：96-105页

摘      要：A rally integrated receiver RF front-end that meets WCDMA/GSM system requirements is *** supports SAW-less operation for *** improve the linearity in terms of both IP3 and IP2,the RF front-end is comprised of multiple-gated LNAs with capacitive desensitization,current-mode passive mixers with the proposed IP2 calibration circuit and reconfigurable Tow-Thomas-like biquad TIAs.A new power-saving multi-mode divider with low phase noise is proposed to provide the 4-phase 25%-duty-cycle *** addition,a constant-g_m biasing with an on-chip resistor is adopted to make the conversion gain invulnerable to the process and temperature variations of the *** RF front-end is integrated in a receiver with an on-chip frequency synthesizer in 0.13μm *** measurement results show that owing to this high-linearity RF front-end,the receiver achieves -6 dBm IIP3 and better than ＋60 dBm IIP2 for all modes and bands.

主 题 词：receiver multi-mode multi-band SAW-less IP2 calibration 25% duty-cycle 

学科分类：0810[工学-土木类] 080904[080904] 0808[工学-自动化类] 0809[工学-计算机类] 08[工学] 080402[080402] 0804[工学-材料学] 0805[工学-能源动力学] 0703[理学-化学类] 081001[081001] 0702[理学-物理学类] 

核心收录：

D　O　I：10.1088/1674-4926/33/2/025007

馆 藏 号：203617093...