A 77 GHz power amplifier using transformer-based power combiner in 90 nm CMOS

A 77 GHz power amplifier using transformer-based power combiner in 90 nm CMOS

A 77 GHz fully-integrated power amplifier (PA) with 50 Ω input and output matching has been realized in a general purpose 90 nm CMOS technology. In order to improve the output power and reduce the signal loss, a transformer and a short stub topology are employed respectively. The power amplifier ach...

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Bibliographische Detailangaben
Hauptverfasser: Tao-Yao Chang, Chao-Shiun Wang, Chorng-Kuang Wang
Format: Tagungsbericht
Sprache:eng
Schlagworte:
77 GHz
automotive radar
Circuit faults
CMOS integrated circuits
CMOS millimeter-wave integrated circuits
CMOS power amplifiers
CMOS technology
Impedance matching
Power amplifiers
power combiners
Power generation
Radar
transformers
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Beschreibung
Zusammenfassung:A 77 GHz fully-integrated power amplifier (PA) with 50 Ω input and output matching has been realized in a general purpose 90 nm CMOS technology. In order to improve the output power and reduce the signal loss, a transformer and a short stub topology are employed respectively. The power amplifier achieves a saturated output power (P out,sat ) of +13.2 dBm and 1dB compressed output power (P out,1dB ) of +11.2 dBm with a peak power-added efficiency (PAE) of 10.4% while operated with a 1.2 V supply.
ISSN:0886-5930
2152-3630
DOI:10.1109/CICC.2010.5617399