Study on a broadband new structure  dipole‐shaped  circularly polarized antenna | Zendy

Shu Wenjuan | Zendy; Li Jianying | Zendy; Hao Sisi | Zendy

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Study on a broadband new structure dipole‐shaped circularly polarized antenna

Author(s) -

Shu Wenjuan,

Li Jianying,

Hao Sisi

Publication year - 2021

Publication title -

microwave and optical technology letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.304

H-Index - 76

eISSN - 1098-2760

pISSN - 0895-2477

DOI - 10.1002/mop.32822

Subject(s) - coaxial antenna , monopole antenna , dipole antenna , broadband , turnstile antenna , optics , axial ratio , circular polarization , physics , antenna measurement , dipole , bandwidth (computing) , materials science , antenna (radio) , optoelectronics , electrical engineering , telecommunications , engineering , microstrip , quantum mechanics

A broadband, circularly polarized (CP), new structure, dipole‐shaped antenna is proposed in this article. The antenna is composed of dipole‐shaped patch, FR4 substrate, ground and feeding coaxial cable. A double‐printed semicircular ring is utilized to feed the radiator. An optimized antenna with an oversize of 0.42λ 0 × 0.42λ 0 × 0.136λ 0 0.75 × 0.75λ 0 × 0.15λ 0 (at 1.32 GHz) is designed and measured. The measured results show that the proposed antenna yields an impedance bandwidth (IBW) of 36.8%(1.24–1.8 GHz), a 3‐dB axial‐ratio (AR) bandwidth of 24%(1.32–1.68 GHz), and an average gain of 9.1 dBic in the operating frequency band.

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