A 25.5-dB Peak Gain F-Band Power Amplifier With an Adaptive Built-In Linearizer

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This letter presents a three-stage differential power amplifier (PA) with an adaptive built-in linearizer (ABL) that achieves an enhanced AM-AM linearity. Series inductors are introduced at cascode internodes to improve the output matching conditions of the cascode amplifiers and stabilize a high-gain PA operation. Capacitors at the gate in the common-gate amplifiers at the power stage are used to achieve high differential gain by reducing RF coupling at the virtual ground and equalizing the drain-source voltage swings. Broad-side coupled transmission line transformers are used for all matching networks. It has 25.5-dB peak power gain and 12.2-dBm saturation output power at 110 GHz with 3-dB bandwidth of 92.5 and 117 GHz. It has a core chip size of 0.76 mm(2) and a peak power-added efficiency (PAE) of 8.5%.
Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
Issue Date
2020-01
Language
English
Article Type
Article
Citation

IEEE MICROWAVE AND WIRELESS COMPONENTS LETTERS, v.30, no.1, pp.106 - 108

ISSN
1531-1309
DOI
10.1109/LMWC.2019.2954217
URI
http://hdl.handle.net/10203/272199
Appears in Collection
EE-Journal Papers(저널논문)
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