A fast-hopping 3-band CMOS frequency synthesizer for MB-OFDM UWB system

被引：1

作者：

郑永正 ^{[1
]}

夏玲琍 ^{[1
]}

李伟男 ^{[1
]}

黄煜梅 ^{[1
]}

洪志良 ^{[1
]}

机构：

[1] State Key Laboratory of ASIC & System,Fudan University

来源：

半导体学报 | 2009年 / 30卷 / 09期

基金：

中国国家自然科学基金;

关键词：

frequency synthesizer; phase-locked loop; ultra-wideband; CMOS;

D O I：

暂无

中图分类号：

TN919.72 [无线数据通信];

学科分类号：

摘要：

A fast-hopping 3-band (mode 1) multi-band orthogonal frequency division multiplexing ultra-wideband frequency synthesizer is presented.This synthesizer uses two phase-locked loops for generating steady frequencies and one quadrature single-sideband mixer for frequency shifting and quadrature frequency generation.The generated carriers can hop among 3432 MHz,3960 MHz,and 4488 MHz.Implemented in a 0.13μm CMOS process,this fully integrated synthesizer consumes 27 mA current from a 1.2 V supply.Measurement shows that the out-of-band spurious tones are below -50 dBc,while the in-band spurious tones are below -34 dBc.The measured hopping time is below 2 ns.The core die area is 1.0×1.8 mm2.

引用

页码：79 / 85

页数：7

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