A compact T/R switching circuit using quadrature couplers and drain-driven HPAs

Hiromitsu Uchida*, Masatoshi Nii, Yoshihiro Tsukahara, Moriyasu Miyazaki, Yasushi Itoh

*Corresponding author for this work

Research output: Contribution to journalConference articlepeer-review

2 Citations (Scopus)

Abstract

A novel T/R switching circuit is proposed for microwave T/R modules. It consists of balanced high-power amplifiers with quadrature couplers, and a low-noise amplifier which is connected to the isolation port of the coupler. In RX-mode, the HPAs are switched off by controlling drain voltage of FETs. A prototype C- to Ku-band T/R switching circuit has been fabricated, and the validity of our switching method has been confirmed experimentally.

Original languageEnglish
Pages (from-to)1349-1352
Number of pages4
JournalIEEE MTT-S International Microwave Symposium Digest
Volume2
Publication statusPublished - 2001
Externally publishedYes
EventInternational Microwave Symposium Digest IEEE-MTT-S 2001 - Phoenix, AZ, United States
Duration: 2001 May 202001 May 25

ASJC Scopus subject areas

  • Radiation
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

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