A Low-Loss Compact 60-GHz Phase Shifter in 65-nm CMOS

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This paper presents a 60-GHz low-loss compact 4-b phase shifter in a 65-nm CMOS. It is based on a 1-b high-pass/low-pass structure and a 3-b switched-filter structure, and employs fully custom-designed capacitors with a high quality factor for low insertion loss. The phase shifter with custom-designed capacitors reduces an insertion loss by 2.6 dB at 60 GHz. The average insertion loss is 8.1 dB at 60 GHz, and the return loss is better than 10.6 dB over a range of 57-66 GHz. The measured 16-output state of the fabricated phase shifter has a phase resolution of 22.5 degrees with an rms phase error less than 5.5 degrees over the 57-66 GHz range. The fabricated phase shifter has a compact core size of 0.42 mm x 0.22 mm. To the best of our knowledge, this phase shifter achieves the lowest insertion loss and the smallest core area of all the published 60-GHz 360 degrees -coverage passive CMOS phase shifters.
Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
Issue Date
2017-07
Language
English
Article Type
Article
Citation

IEEE MICROWAVE AND WIRELESS COMPONENTS LETTERS, v.27, no.7, pp.663 - 665

ISSN
1531-1309
DOI
10.1109/LMWC.2017.2711569
URI
http://hdl.handle.net/10203/225233
Appears in Collection
EE-Journal Papers(저널논문)
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