Implementation of 5GHz Current-Reused VCO With Linearity

被引:0
|
作者
Hsu, Meng-Ting [1 ]
Ou, An-Cheng [1 ]
Jhong, Ruei-Wun [1 ]
机构
[1] Natl Yunlin Univ Sci & Technol, Dept Elect Engn, Microwave Commun & Radio Frequency Integrated Cir, 123 Univ Rd,Sect 3, Touliu 64002, Yunlin, Taiwan
来源
2014 ASIA-PACIFIC MICROWAVE CONFERENCE (APMC) | 2014年
关键词
Linear tuning range; phase noise; low power; dual-tuning capacitor; self-biased tail transistor;
D O I
暂无
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
In this paper, a linear tuning range, low power and low phase noise of current-reused voltage controlled oscillator (VCO) in a 0.18um CMOS process is presented. The core circuit of VCO is adopted dual-tuning capacitor with self biased tail transistor structure. The proposed circuit is capable of lower circuit gain which can stable output frequency and improve phase noise, the tail current el imination circuit also improve the power dissipation. The measured result of bandwidth is from 5.2GHz to 6.3 GHz with a 19.1% tuning ratio by two tuning voltages. The phase noise of the proposed VCO is -119.9dBc/Hz at 1MHz offset frequency. The power consumption is 1.8mW from 1.4V supply and the Kvco exhibits the linearity with 200 MHz/V.
引用
收藏
页码:968 / 970
页数:3
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