A 35-to-83 GHz multiconductor-lines signal combiner for high linear and wideband mixer

Hwann Kaeo Chiou, Hung Ting Chou, Chia Jen Liang

Research output: Contribution to journalArticlepeer-review

6 Scopus citations

Abstract

This letter proposes a broadband and low-loss multiconductor-lines signal combiner in 90 nm CMOS. The signal combiner consists of one broadside-coupled balun, two broadband in-phase power dividers, one edge-coupled balun, and four impedance-transformation lines. By using thin-film microstrip lines to avoid the loss from silicon substrate, the signal combiner has a simulated insertion loss of 8.1 dB and port-to-port isolations better than 42 dB from 35 to 83 GHz. The signal combiner is then integrated into a source-pumped mixer, and a -1±1.5 -dB conversion gain and a 13 dBm average input IP3 at a 6.5 mW total dc power are achieved in measurements.

Original languageEnglish
Article number6588362
Pages (from-to)548-550
Number of pages3
JournalIEEE Microwave and Wireless Components Letters
Volume23
Issue number10
DOIs
StatePublished - 2013

Keywords

  • Balun
  • Broadside-coupled
  • Linearity
  • Mixer
  • Multiconductor-lines
  • Signal combiner
  • Thin-film microstrip line

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