A variable conversion gain star mixer for Ka-band applications

Che Hung Lin, Jui Chieh Chiu, Chih Ming Lin, Yu Ann Lai, Yeong Her Wang

Research output: Contribution to journalArticlepeer-review

13 Citations (Scopus)

Abstract

A variable conversion gain star mixer for Ka-band applications has been presented. This monolithic microwave integrated circuit was implemented on AlGaAs/InGaAs/GaAs pseudomorphic high-electron-mobility transistor process with a chip size of 1.7 × 1.7 mm 2. The mixer is modified from conventional star mixer to apply dc bias. The conversion gain of the mixer, controlled by the voltage of the diodes, could be applied to meet gain compensation requirements in communication systems. From the measured results, the circuit can provide - 11.9 dB conversion gain and 9.3 dB gain adjustment by controlling voltage form 0 to 0.7 V at 30 GHz.

Original languageEnglish
Pages (from-to)802-804
Number of pages3
JournalIEEE Microwave and Wireless Components Letters
Volume17
Issue number11
DOIs
Publication statusPublished - 2007 Nov 1

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics
  • Electrical and Electronic Engineering

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