0.8-5.2GHz broad-band SiGe-MMIC quadrature mixer for software defined radio receiver

Keishi Murakami, Noriharu Suematsu, Koji Tsutsumi, Gakushi Kanazawa, Tomotsugu Sekine, Hiroshi Kubo, Yoji Isota

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)


For the next generation wireless terminals used in the software defined radio (SDR), multi-band / multi-mode transceivers and their MMIC are required which cover the wide RF frequency range from several hundreds MHz up to several GHz. In this paper, 0.8-5.2GHz broad-band SiGe-MMIC quadrature mixer (Q-MIX) for multi-band / multi-mode direct conversion receiver has been developed. By using a static type frequency divider as a 90 degrees local (LO) power divider, measured error vector magnitude (EVM) of less than 3.1% can be achieved in the cases of 0.8/2.1GHz W-CDMA and 5.2GHz wireless Local Area Network (LAN) (IEEE 802.11 a) reception. This Q-MIX also shows broad-band characteristic for base-band signal and is applicable for 4G cellular. By using fabricated Q-MIX, a multi-band / multi-mode (1.9GHz (3rd generation cellular (W-CDMA)) / 5.2GHz (4th generation cellular (Multi-Carrier (MC)-CDMA))) receiver has been developed and it has firstly demonstrated the successful reception of motion picture via W-CDMA and MC-CDMA.

Original languageEnglish
Pages (from-to)5+1093-1100
JournalIEEJ Transactions on Electronics, Information and Systems
Issue number9
Publication statusPublished - 2006


  • Direct Conversion
  • MMIC
  • Microwave
  • Mobile Communication
  • Quadrature Mixers
  • SDR
  • SiGe


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