A dual‐patch polarization rotation reflective surface and its application to wideband wide‐beam low‐profile circularly polarized patch antennas | Zendy

Chen Qiang | Zendy; Zhang Hou | Zendy; Xiong LingHeng | Zendy

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A dual‐patch polarization rotation reflective surface and its application to wideband wide‐beam low‐profile circularly polarized patch antennas

Author(s) -

Chen Qiang,

Zhang Hou,

Xiong LingHeng

Publication year - 2019

Publication title -

international journal of rf and microwave computer‐aided engineering

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.335

H-Index - 39

eISSN - 1099-047X

pISSN - 1096-4290

DOI - 10.1002/mmce.21533

Subject(s) - beamwidth , wideband , optics , patch antenna , microstrip antenna , conductor , circular polarization , bandwidth (computing) , axial ratio , physics , materials science , microstrip , antenna (radio) , electrical engineering , telecommunications , engineering , composite material

This study investigates the use of a polarization rotation reflective surface (PRRS) to construct a wideband, wide‐beam, low‐profile circularly polarized (CP) patch antenna. The device is composed of a feeding monopole antenna and a novel PRRS‐based dual‐patch artificial magnetic conductor (AMC) cell structure. The PRRS has two polarization rotation (PR) frequency points, generated by properly adjusting the width between square and L‐shaped metallic patches. A large PR band of 35.5% (5.1‐7.3 GHz) was achieved by combining two adjacent PR frequency points. The PRRS‐based patch antenna impedance bandwidth was measured to be 28.6% (5.1‐6.35 GHz), with a 3 dB axial ratio (AR) bandwidth of 21.8% (4.8‐6.4 GHz) and a profile of 0.045 λ 0 . Additionally, the proposed antenna exhibited the largest AR beamwidth (to our knowledge) of 175° and 128° in the xoz and yoz planes, respectively. It also produced a high broadside gain of 6.7 dBic within the operational bandwidth.

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