A divide-by-3 injection locked frequency divider with single-ended input

被引:35
|
作者
Jang, Sheng-Lyang [1 ]
Lee, Chien-Feng [1 ]
Yeh, Wei-Hsung [1 ]
机构
[1] Taiwan Univ Sci & Technol, Dept Elect Engn, Taipei, Taiwan
关键词
CMOS; divide-by-3; inductors; injection-locked frequency divider (ILFD); LC-tank oscillator;
D O I
10.1109/LMWC.2007.915142
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
This letter proposes a new divide-by-3 CMOS injection locked frequency divider (ILFD) fabricated in a 0.18-mu m CMOS process and describes the operation principle of the ILFD. The ILFD circuit is realized with a double cross-coupled CMOS LC-tank oscillator with an injection MOS. The self-oscillating voltage controlled oscillator is injection-locked by third-harmonic input to obtain the division order of three. Measurement results show that at the supply voltage of 1.8 V, the free-running frequency is from 1.62 to 1.89 GHz. At the incident power of 5 dBm, the locking range is from the incident frequency 4.85 to 5.7 GHz.
引用
收藏
页码:142 / 144
页数:3
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