Broadband gilbert micromixer with an LO marchand B alun and a TIA output buffer

Sheng Che Tseng*, Chin-Chun Meng, Chia Hung Chang, Chih Kai Wu, Guo Wei Hung

*Corresponding author for this work

Research output: Contribution to journalConference articlepeer-review

2 Scopus citations

Abstract

A single-ended wideband downconversion Gilbert micromixer is demonstrated in this paper using 0.35-um SiGe BiCMOS technology. Because of the wideband matching property of the micromixer, it can perform broad frequency translation. The TIA is utilized in the IF stage while a broadband Marchand balun is employed not only to generate differential LO signals but also to reserve the wideband operation of the mixer. This single-ended wideband mixer has the conversion gain of 15 dB, IP1dB of-17 dBm, and HP3 of -6.5 dBm and works from 3.5 to 14.5 GHz. The input return loss is below -14 dB and the chip size is 1×1 mm2.

Original languageEnglish
Article number4015220
Pages (from-to)1509-1512
Number of pages4
JournalIEEE MTT-S International Microwave Symposium Digest
DOIs
StatePublished - 1 Dec 2006
Event2006 IEEE MTT-S International Microwave Symposium Digest - San Francisco, CA, United States
Duration: 11 Jun 200616 Jun 2006

Keywords

  • Downconverter
  • Marchand balun
  • Micromixer
  • SiGe BiCMOS
  • Single-ended
  • TIA
  • Wideband

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