A Ka-band PHEMT diode double-balanced star mixer MMIC

C. W. Huang, S. J. Chang, W. Wu, C. L. Wu, C. S. Chang

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)


This paper describes the design and measurement of a double-balanced monolithic star mixer using a double planar baluns with a Marchand section followed by a coupled-line structure. The microwave and millimeter-wave integrated circuits (MMICs) are fabricated on commercially available InGaAs/AGaAs pseudomorphic high-electron-mobility transistor (PHEMT) processes with a chip size of 1.43 × 1.28 mm2. The typical up-conversion loss is 7 dB with an LO-to-RF isolation better than 28 dB.

Original languageEnglish
Pages (from-to)455-458
Number of pages4
JournalMicrowave and Optical Technology Letters
Issue number6
Publication statusPublished - 2004 Sep 20

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Condensed Matter Physics
  • Electrical and Electronic Engineering


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