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60 GHz Double-Balanced Gate-Pumped Down-Conversion Mixers With a Combined Hybrid on 130 nm CMOS Processes

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5 Author(s)
Chun-Hsien Lien ; Dept. of Electr. Eng., Nat. Taiwan Univ., Taipei, Taiwan ; Pin-Cheng Huang ; Kun-Yao Kao ; Kun-You Lin
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Two 60-GHz compact double-balanced gate-pumped mixers using standard bulk 0.13 ??m CMOS process are presented. The homodyne and heterodyne mixers utilize small-size combined hybrids and demonstrated a small chip size of 0.8 ?? 0.85 and 0.7 ?? 0.7 mm2, including pads. With 5 dBm LO power, the best measured conversion gains are 1 and 0 dB in the 3 dB bandwidths of 15 GHz from 54 to 69 GHz and 14 GHz from 53 to 67 GHz RF. The LO-to-RF isolations are greater than 45 dB at a low bias of 1.2 V and 12 m A. This is the first demonstration of the double-balanced gate mixer in millimeter wave frequency.

Published in:

Microwave and Wireless Components Letters, IEEE  (Volume:20 ,  Issue: 3 )