Pin‐loaded planar wideband end‐fire circularly polarised antenna

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...

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Bibliographic Details
Published inElectronics letters Vol. 57; no. 14; pp. 536 - 538
Main Authors Yang, Dongmei, Li, Hongjun, Ren, Baoquan, Cao, Wenquan, Huang, Ronggang
Format Journal Article
LanguageEnglish
Published Stevenage John Wiley & Sons, Inc 01.07.2021
Wiley
Subjects
Antenna accessories
Antenna arrays
Antennas
Bandwidths
Circular polarization
Electric dipoles
Geometry
Impedance
Magnetic dipoles
Metal surfaces
Microstrip antennas
Radiation
Wireless communications
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Summary: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.
ISSN:0013-5194
1350-911X
DOI:10.1049/ell2.12095