60-GHz Polarization-Adjustable Antenna Arrays

Yu Jen Chi, Fu-Chiarng Chen*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

5 Scopus citations


This paper proposes 2 × 2 and 4 × 4 polarization-adjustable millimeter-wave antenna arrays. The antennas were designed to function at 60 GHz and are planar and vialess. The proposed antenna designs contain two input ports; if the input phases and magnitudes of the two input ports can be controlled, enabling the proposed antenna to generate six types of polarization: right-handed circular polarization, left-handed circular polarization, and linear polarization along the φ = 0°, φ = 45°, φ = 90°, and φ = 135° axes. The achieved antenna gain of the 2 × 2 polarization diversity array was approximately 12 dBi, whereas that of the 4 × 4 array was 16 dBi. Prototypes of both the 2 × 2 and 4 × 4 arrays were fabricated and tested. The operating mechanism and design steps are described in detail in this paper.

Original languageEnglish
Article number7102714
Pages (from-to)2887-2894
Number of pages8
JournalIEEE Transactions on Antennas and Propagation
Issue number7
StatePublished - 1 Jul 2015


  • array
  • circular polarization
  • diversity antenna
  • linear polarization
  • polarization diversity
  • quadripolarization
  • sequential rotation


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