A 2GHz-band self frequency dividing quadrature mixer

Eiji Taniguchi, Chiemi Kageyama, Noriharu Suematsu

Research output: Contribution to journalConference article

1 Citation (Scopus)

Abstract

A 2GHz-band self frequency dividing quadrature mixer(SFDQM) is proposed. The SFDQM uses a static-type 1/2 frequency divider as LO switching circuit, and needs no external 90 degree phase shifter. As the inputs of the mixer, differential 2f Lo signal and f RF signal are required to produce quadrature base band (BB) signal. Since this mixer can eliminate a 90 degree phase shifter and one of the unit mixer blocks having a LO amplifier, it realizes very low power consumption and very small die area on IC chip. The SFDQM is fabricated in 0.35μm SiGe-BiCMOS technology and it's down conversion characteristics are evaluated in 2GHz -band. It performs the conversion gain of 18.5dB and the NF of 15.1 dB with the current consumption of 3mA and the die area of 0.22 × 0.31 mm 2 .

Original languageEnglish
Article numberRTU3D-2
Pages (from-to)505-508
Number of pages4
JournalDigest of papers - IEEE Radio Frequency Integrated Circuits Symposium
Publication statusPublished - 2005 Nov 15
Externally publishedYes
Event2005 IEEE Radio Frequency Integrated Circuits (RFIC) Symposium - Digest of Papers - Long Beach, CA, United States
Duration: 2005 Jun 122005 Jun 14

Keywords

  • Converter
  • Direct conversion
  • Frequency divider
  • MMIC
  • Microwave
  • Mixer
  • Silicon

ASJC Scopus subject areas

  • Engineering(all)

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