A high-performance 94 GHz double-balanced up-conversion mixer for imaging radar sensors in 90 nm CMOS
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- 作者：Yo-Sheng Lin ; Van Kien Nguyen ; Run-Chi Liu…
- 关键词：CMOS ; 94 GHz ; Up ; conversion mixer ; Negative resistance compensation
- 刊名：Analog Integrated Circuits and Signal Processing
- 出版年：2016
- 出版时间：April 2016
- 年：2016
- 卷：87
- 期：1
- 页码：21-33
- 全文大小：1,464 KB
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Van Kien Nguyen (1)
Run-Chi Liu (1)
Chien-Chin Wang (1)
Chien-Chu Ji (1)
1. Department of Electrical Engineering, National Chi Nan University, Puli, Taiwan, ROC - 刊物类别：Engineering
- 刊物主题：Circuits and Systems
Electronic and Computer Engineering
Signal,Image and Speech Processing - 出版者：Springer Netherlands
- ISSN：1573-1979
文摘
A W-band double-balanced mixer for direct up-conversion using standard 90 nm CMOS technology is reported. The mixer comprises an enhanced double-balanced Gilbert cell with PMOS negative resistance compensation for conversion gain (CG) enhancement and current injection for power consumption reduction and linearity improvement, a Marchand balun for converting the single LO input signal to differential signal, another Marchand balun for converting the differential RF output signal to single signal, and an output buffer amplifier for loading effect suppression, power consumption reduction and CG enhancement. The mixer consumes low power of 6.9 mW and achieves LO-port input reflection coefficient of −17.8 to −38.7 dB and RF-port input reflection coefficient of −16.8 to −27.9 dB for frequencies of 90–100 GHz. The mixer achieves maximum CG of 3.6 dB at 95 GHz, and CG of 2.1 ± 1.5 dB for frequencies of 91.9–99.4 GHz. That is, the corresponding 3 dB CG bandwidth is 7.5 GHz. In addition, the mixer achieves LO-RF isolation of 36.8 dB at 94 GHz. To the authors’ knowledge, the CG, LO-RF isolation and power dissipation results are the best data ever reported for a 94 GHz CMOS/BiCMOS up-conversion mixer.