A W-band image reject mixer for astronomical observation system

Yi Ching Wu*, Shi Kai Lin, Chau Ching Chiong, Zuo-Min Tsai , Huei Wang

*Corresponding author for this work

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

12 Scopus citations

Abstract

In this paper, the design of a broadband fundamental mixer using an improved Lange coupler is presented. This W-band image reject mixer is implemented in 0.15-μm GaAs PHEMT process. This mixer demonstrates measured conversion loss about 10.5 dB from 90∼112 GHz and image rejection about 15.9 dB from 82∼ 116.5 GHz. All the characteristics of this mixer facilitate the application in ALMA project.

Original languageEnglish
Title of host publication2011 IEEE MTT-S International Microwave Symposium, IMS 2011
DOIs
StatePublished - 7 Sep 2011
Event2011 IEEE MTT-S International Microwave Symposium, IMS 2011 - Baltimore, MD, United States
Duration: 5 Jun 201110 Jun 2011

Publication series

NameIEEE MTT-S International Microwave Symposium Digest
ISSN (Print)0149-645X

Conference

Conference2011 IEEE MTT-S International Microwave Symposium, IMS 2011
CountryUnited States
CityBaltimore, MD
Period5/06/1110/06/11

Keywords

  • ALMA(Atacama Large Millimeter/ sub-millimeter Array)
  • Image reject mixer
  • MMIC
  • pHEMT
  • W band

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