Fully monolithic image‐reject mixers for 38‐GHz wireless telecommunication links

John W. Archer*, Simon J. Mahon, Oya Sevimli

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)


A prototype down‐converting mixer MMIC based on planar Schottky diodes and a production version based on HEMT diodes are reported. Measurements with a 1–2‐GHz i.f. indicate conversion losses of 8–11 and 10–14 dB, respectively, and image rejections > 20 dB. A HEMT‐based mixer‐amplifier MMIC with conversion gain of 3–8 dB and image rejection > 18 dB is also reported. Simulations agree well with these measurements. Image rejection is produced by an on‐chip i.f. coupler. This is the first report, to the authors' knowledge, of fully monolithic, image‐reject downconverters of this type. © 1995 John Wiley & Sons, Inc.

Original languageEnglish
Pages (from-to)303-306
Number of pages4
JournalMicrowave and Optical Technology Letters
Issue number6
Publication statusPublished - 1995
Externally publishedYes


  • HEMT
  • Image reject
  • mixer
  • MMIC
  • wireless communication


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