Electronics Letters (Jul 2021)

Pin‐loaded planar wideband end‐fire circularly polarised antenna

  • Dongmei Yang,
  • Hongjun Li,
  • Baoquan Ren,
  • Wenquan Cao,
  • Ronggang Huang

DOI
https://doi.org/10.1049/ell2.12095
Journal volume & issue
Vol. 57, no. 14
pp. 536 – 538

Abstract

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Abstract A single‐layer planar end‐fire circularly polarised microstrip antenna with enhanced bandwidth is proposed by loading with a metal pin. The original antenna is designed with a shorted parallel‐plate cavity that serves as a magnetic dipole, and a double‐sided printed bowtie dipole acts as an electric dipole. Then a metal pin is loaded connecting two metal surfaces and impedance bandwidth is improved obviously. One prototype is fabricated for verification and measured 19% –10 dB impedance bandwidth and 36% 3 dB axial ratio bandwidth are achieved.

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