A wideband 0.13μm CMOS LC-VCO for IMT-advanced and UWB applications  

作　　者：唐欣 黄风义 唐旭升 邵明驰 

机构地区：[1]RF & OEIC Research Institute,National Mobile Communications Research Laboratory,Southeast University

出　　处：《Journal of Semiconductors》2013年第1期83-88,共6页半导体学报（英文版）

基　　金：Project supported by the National High Technology Research and Development Program of China (No.2009AA01Z261);the National Science and Technology Major Special Project(Nos.2009ZX03007-001,2012ZX03001-019)

摘　　要：This paper presents an LC voltage controlled oscillator（VCO） in a dual-band frequency synthesizer for IMT-advanced and UWB applications.The switched current source,cross-coupled pair and noise filtering technique are adopted in this VCO design to improve the performance of the phase noise,power consumption,voltage amplitude,and tuning range.In order to achieve a wide tuning range,a reconfigurable LC tank with 4 bits switch control is adopted in the core circuit design.The size of the entire chip with pad is 1.11 0.98 mm2.The test results show that the current dissipation of the VCO at UWB and IMT-Advanced band is 3 mA and 4.5 mA in a 1.2 V supply.The tuning range of the designed VCO is 3.86-5.28 GHz and 3.14-3.88 GHz.The phase-noise at 1 MHz frequency offset from a 3.5 GHz and 4.2 GHz carrier is-123 dBc/Hz and-119 dBc/Hz,respectively.This paper presents an LC voltage controlled oscillator（VCO） in a dual-band frequency synthesizer for IMT-advanced and UWB applications.The switched current source,cross-coupled pair and noise filtering technique are adopted in this VCO design to improve the performance of the phase noise,power consumption,voltage amplitude,and tuning range.In order to achieve a wide tuning range,a reconfigurable LC tank with 4 bits switch control is adopted in the core circuit design.The size of the entire chip with pad is 1.11 0.98 mm2.The test results show that the current dissipation of the VCO at UWB and IMT-Advanced band is 3 mA and 4.5 mA in a 1.2 V supply.The tuning range of the designed VCO is 3.86-5.28 GHz and 3.14-3.88 GHz.The phase-noise at 1 MHz frequency offset from a 3.5 GHz and 4.2 GHz carrier is-123 dBc/Hz and-119 dBc/Hz,respectively.

关 键 词：LC VCO voltage controlled oscillator phase noise CMOS UWB IMT-ADVANCED 

分 类 号：TN752[电子电信—电路与系统]