A 60 GHz Wideband Phased-Array LNA With Short-Stub Passive Vector Generator

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This letter presents 60 GHz 5 b phased-array low noise amplifier (LNA) implemented in 90 nm CMOS for a short range wireless application. The design consists of common source two-stage LNA, short-stub vector generator, I/Q modulator with 5 b digital to analog converter and differential to single amplifier. All the proposed amplifiers are designed using a transformer coupled method which results in wideband operation to meet the frequency requirement of the standard. The proposed circuit provides 360 phase controllability over 50-70 GHz band while achieving 12.5 dB gain, 6.55 dB NF and consuming 50 mA from 1.2 V. The measured rms phase error is in the phase accuracy limitation (differential phase array) and gain variation is quite low (< 0.92 dB) over 5 b control range.
Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
Issue Date
2010-11
Language
English
Article Type
Article
Keywords

CMOS; RECEIVER; SHIFTER

Citation

IEEE MICROWAVE AND WIRELESS COMPONENTS LETTERS, v.20, no.11, pp.628 - 630

ISSN
1531-1309
URI
http://hdl.handle.net/10203/100221
Appears in Collection
EE-Journal Papers(저널논문)
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