Wideband Patch Antenna Using Multiple Parasitic Patches and Its Array Application with Mutual Coupling Reduction

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

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Author(s)

  • Kai Da XU
  • Jianfeng ZHU
  • Shaowei LIAO
  • Quan XUE

Detail(s)

Original languageEnglish
Pages (from-to)42497-42506
Journal / PublicationIEEE Access
Volume6
Online published31 Jul 2018
Publication statusPublished - 2018

Abstract

A dual-layer patch antenna using multiple parasitic patches for the bandwidth enhancement is presented. Two additional resonances can be obtained with the help of the parasitic patches of the antenna. Consequently, a wide impedance bandwidth of 17% (|S11|<-10 dB) can be achieved. Then, without increase of the antenna array footprint, the combinations of two decoupling techniques (i.e., metalized via walls and short-circuited stepped-impedance structures as the neutralized networks) are adopted for mutual coupling reduction when the antenna element is extended to 2×1, 2×2 and even 4×4 array applications. To validate the design idea, a 2×2 antenna array is fabricated and tested, whose measured isolations between any two feeding ports are better than 28 dB within the frequency range of 3-4 GHz. The measured peak gain fluctuates from 12.6 to 13.6 dBi within the 10-dB impedance band of 3.35-3.95 GHz, and the cross-polarization levels in both E-and H-planes are lower than -38 dB at the boresight direction.

Research Area(s)

  • Antenna array, Wideband, decoupling technique, Impedance, Mutual coupling, mutual coupling, parasitic patches, patch antenna, Patch antennas, short-circuited stepped-impedance structure

Citation Format(s)

Wideband Patch Antenna Using Multiple Parasitic Patches and Its Array Application with Mutual Coupling Reduction. / XU, Kai Da; ZHU, Jianfeng; LIAO, Shaowei et al.

In: IEEE Access, Vol. 6, 2018, p. 42497-42506.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

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