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A novel tunable K-band frequency doubler in 0.18-μm CMOS technology

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4 Author(s)
Jung-Hau Chen ; Department of Electrical Engineering and Graduate Institute of Communication Engineering, National, Taiwan University, Taipei, Taiwan, R.O.C. ; Che-Chung Kuo ; Yao-Wen Hsu ; Huei Wang

In this paper, a K-band frequency doubler with a tunable input matching network and LC reflector is first proposed and implemented using 0.18-μm CMOS process. The conversion gain bandwidth is extended by the tunable input matching network and the tunable LC reflector can improve the fundamental rejection. This frequency doubler exhibits a conversion gain of -6~-8.3 dB from 18 to 26 GHz with 0 dBm input power and fundamental rejection of 32.5 to 44 dB. The dc power consumption is only 5.4 mW with a chip size of 0.55 × 0.46 mm2.

Published in:

2012 Asia Pacific Microwave Conference Proceedings

Date of Conference:

4-7 Dec. 2012