300 GHz vector-sum phase shifter using InP DHBT amplifiers

H. G. Yu, K. J. Lee, M. Kim

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)


A vector-sum phase shifter that provides 90° phase control with a positive signal gain is successfully demonstrated at WR-3 band. The integrated circuit consists of input and output microstrip power dividers and two InP DHBT amplifiers with a 300 GHz gain of 14.8 dB. The measurements on a fabricated phase shifter show offset phases of - 46°, - 22°, 0°, 25°, 57° and signal gain of 7.7 to 10.1 dB at 300 GHz.

Original languageEnglish
Pages (from-to)274-276
Number of pages3
JournalElectronics Letters
Issue number4
Publication statusPublished - 2013 Feb 14

ASJC Scopus subject areas

  • Electrical and Electronic Engineering


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