Wideband CMOS LC VCO design and phase noise analysis

作     者：郭雪锋 王志功 李智群 唐路 Guo Xuefeng;Wang Zhigong;Li Zhiqun;Tang Lu

作者机构：东南大学射频与光电集成电路研究所南京210096 

出 版 物：《Journal of Southeast University(English Edition)》 (东南大学学报（英文版）)

年 卷 期：2008年第24卷第4期

页      码：433-436页

摘      要：A wideband LC cross-coupled voltage controlled oscillator（VCO） is designed and realized with standard 0. 18 μm complementary metal-oxide-semiconductor（CMOS） technology. Band switching capacitors are adopted to extend the frequency tuning range, and the phase noise is optimized in the design procedure. The functional relationships between the phase noise and the transistors＇ width-length ratios are deduced by a linear time variant （LTV） model. The theoretical optimized parameter value ranges are determined. To simplify the calculation, the working region is split into several sub-ranges according to transistor working conditions. Thus, a lot of integrations are avoided, and the phase noise function upon the design variables can be expressed as simple proportion formats. Test results show that the DC current is 8.8 mA under a voltage supply of 1.8 V; the frequency range is 1.17 to 1.90 GHz, and the phase noise reaches - 83 dBc/Hz at a 10 kHz offset from the carrier. The chip size is 1. 2 mm × 0. 9 mm.

主 题 词：voltage controlled oscillator(VCO) wideband phase noise 

学科分类：0810[工学-土木类] 080904[080904] 0809[工学-计算机类] 08[工学] 0805[工学-能源动力学] 0812[工学-测绘类] 

核心收录：

D　O　I：10.3969/j.issn.1003-7985.2008.04.008

馆 藏 号：203263289...