Compact GaInP/GaAs HBT gilbert mixers with on-chip active LO balun

Tzung Han Wu, Yi Chen Lin, Chin-Chun Meng, Tse Hung Wu, Hung Ju Wei, Guo Wei Huang

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

1 Scopus citations


A Gilbert micromixer is demonstrated in this paper using GaInP/GaAs HBT technology. The RF, LO, and IF ports of the micromixer are all single-ended using the on-chip active LO balun. The port-to-port isolation has its best performance when the LO signal is balanced. The stand-along micromixer is suitable for hybrid RF system applications. The fully matched high linearity micromixer has the conversion gain of 12 dB, IP1dB of-9 dBm, IIP 3 of 1 dBm when input IF=300 MHz, LO=3.5 GHz and output RF=3.8 GHz.

Original languageEnglish
Title of host publication2007 Asia-Pacific Microwave Conference, APMC
StatePublished - 2007
EventAsia-Pacific Microwave Conference, APMC 2007 - Bangkok, Thailand
Duration: 11 Dec 200714 Dec 2007

Publication series

NameAsia-Pacific Microwave Conference Proceedings, APMC


ConferenceAsia-Pacific Microwave Conference, APMC 2007


  • GaInP/GaAs HBT
  • Micromixer
  • On-chip active balun
  • Port-to-port isolation


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