UWB LNA and mixer with an active balun in 0.18μm CMOS process

Ching Ian Shie*, Chung Han Hsieh, Yi Chyun Chiang

*Corresponding author for this work

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

7 Scopus citations

Abstract

This work presents low noise amplifier (LNA) and mixer with an active Balun for 8-9 GHz Ultra-wideband (UWB) system. The LNA uses the self-biased method to eliminate the Miller effect and no extra bias circuit is needed. The mixer uses the Gilbert cell topology to enhance the isolation performance. The proposed mixer which uses an active balun at the input port reveals a larger conversion gain than by using a micromixer topology which varies the signals at the trans-conductance stage. The LNA and mixer are also integrated together on a printed circuit board (PCB). Fabricated in CMOS 0.18μm technology, the conversion gain of LNA and mixer is 17.4dB when one IF port is terminated to 50Ω. The total power consumption is 41.4dBm, the LO-to-IF isolation is 35.6dB, and the 1-dB compression point is -20dBm.

Original languageEnglish
Title of host publicationAPMC 2009 - Asia Pacific Microwave Conference 2009
Pages1140-1143
Number of pages4
DOIs
StatePublished - 2009
EventAsia Pacific Microwave Conference 2009, APMC 2009 - Singapore, Singapore
Duration: 07 12 200910 12 2009

Publication series

NameAPMC 2009 - Asia Pacific Microwave Conference 2009

Conference

ConferenceAsia Pacific Microwave Conference 2009, APMC 2009
Country/TerritorySingapore
CitySingapore
Period07/12/0910/12/09

Keywords

  • Active balun
  • Current-bleeding
  • Mixer
  • Self-biased

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