A compact Ka-band power amplifier using finite-ground coplanar waveguide design

Tsung Yu Yang, Li Chih Pai, Hwann Kaeo Chiou

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

A compact 0.15μm InGaAs pHEMT power amplifier using finite-ground coplanar waveguide (FGCPW) design for Ka-band applications is presented. An optimum ratio between signal and ground width is demonstrated in this design. The proposed two stages FGCPW power amplifier delivers a 14.5dB linear power gain at 31GHz with 19.3% maximum power-added efficiency (Max PAE). Furthermore, the chip size is very compact less than 2 mm2. Compared to previously reported Ka-band amplifiers, the results are superior to those using the microstrip technique on MMIC power amplifier designs.

Original languageEnglish
Title of host publicationAPMC 2005
Subtitle of host publicationAsia-Pacific Microwave Conference Proceedings 2005
DOIs
StatePublished - 2005
EventAPMC 2005: Asia-Pacific Microwave Conference 2005 - Suzhou, China
Duration: 4 Dec 20057 Dec 2005

Publication series

NameAsia-Pacific Microwave Conference Proceedings, APMC
Volume5

Conference

ConferenceAPMC 2005: Asia-Pacific Microwave Conference 2005
Country/TerritoryChina
CitySuzhou
Period4/12/057/12/05

Keywords

  • Finite-ground coplanar waveguide
  • Ka-band
  • Power amplifier (PA)
  • pHEMT

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