A 79 GHz gm-boosted Sub-Harmonic Mixer with High Conversion Gain in 65nm CMOS

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In this paper, a 79 GHz gm-boosted subharmonic mixer with high conversion gain is presented. As a gm-boosting technique, a transformer based feedback network with an NMOS bleeding path is proposed to achieve high conversion gain. The differential LO-driven subharmonic mixer has a simple structure and operates at low LO power. The measurement results show a conversion gain of 1.6 dB at a LO power of −5 dBm, a noise figure of 13 dB, and a 2LO-to-RF isolation of 38 dB. The power consumption of the sub-harmonic mixer is 12 mW. The circuit was fabricated using 65-nm CMOS technology with a chip area of 0.69×0.45 mm2
Publisher
IEEE
Issue Date
2015-05-18
Language
English
Citation

Radio Frequency Integrated Circuits Symposium 2015, pp.11 - 14

URI
http://hdl.handle.net/10203/225031
Appears in Collection
EE-Conference Papers(학술회의논문)
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