A 2.6mW, -192dB/Hz FOM Class-C QVCO using capacitive source degeneration coupling

Zhi Hao Hong, Chuan Yi Wu, Yu-Te Liao

研究成果: Conference contribution同行評審

2 引文 斯高帕斯(Scopus)

摘要

The paper presents a novel Class-C type QVCO using a capacitive source coupling mechanism to enhance the startup robustness over process-temperature- voltage variations. Class-C type oscillator has superior phase noise performance with low power consumption at the cost of weak startup. In this design, complementary architecture and capacitive source degeneration coupling are employed to increase the loop gain of Class-C quadrature oscillator. The capacitive coupling mechanism also provides extra phase shifts that eliminate the quality factor degradation of the LC tank in QVCO design. An optimal coupling factor is derived to compromise power-phase noise trade-offs. The proposed 2.4GHz QVCO, fabricated in 0.18μm CMOS technology, achieves -128dBc/Hz at 1MHz offsets while only consuming 2.6mW. The design attains a remarkable figure-of-merit (FOM) of -192dB/Hz.

原文English
主出版物標題2014 IEEE MTT-S International Microwave Symposium, IMS 2014
發行者Institute of Electrical and Electronics Engineers Inc.
ISBN(列印)9781479938698
DOIs
出版狀態Published - 1 6月 2014
事件2014 IEEE MTT-S International Microwave Symposium, IMS 2014 - Tampa, FL, 美國
持續時間: 1 6月 20146 6月 2014

出版系列

名字IEEE MTT-S International Microwave Symposium Digest
ISSN(列印)0149-645X

Conference

Conference2014 IEEE MTT-S International Microwave Symposium, IMS 2014
國家/地區美國
城市Tampa, FL
期間1/06/146/06/14

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