10-GHz 0.35-μm SiGe BiCMOS bottom-LO-sub-harmonic gilbert mixer with lumped-element rat-races

Sheng Che Tseng*, Chin-Chun Meng, Guo Wei Huang

*Corresponding author for this work

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

1 Scopus citations


In this paper, a single-ended downconversion sub-harmonic mixer is implemented using 0.35-μm SiGe BiCMOS technology. Two lumped-element rat-races are applied to generate differential LO and RF signals. This single-ended rat-race mixer has the conversion gain of 25 dB and high port-to-port isolations at 10 GHz. The input return loss is about -10 dB and the compact chip size is 0.8 mm × 0.9 mm. The total current consumption is about 16 mA at 3.3 V.

Original languageEnglish
Title of host publication2006 Asia-Pacific Microwave Conference Proceedings, APMC
Number of pages4
StatePublished - 1 Dec 2006
Event2006 Asia-Pacific Microwave Conference, APMC - Yokohama, Japan
Duration: 12 Dec 200615 Dec 2006

Publication series

NameAsia-Pacific Microwave Conference Proceedings, APMC


Conference2006 Asia-Pacific Microwave Conference, APMC


  • Direct-conversion
  • Lumped-element
  • Rat-race
  • SiGe
  • Sub-harmonic

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