A circular CPW‐FED slot antenna for broadband circularly polarized radiation | Zendy

Deng IChung | Zendy; Chen JinBo | Zendy; Ke QingXiang | Zendy; Chang JunRong | Zendy; Chang WoonFa | Zendy; King YuehTsu | Zendy

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A circular CPW‐FED slot antenna for broadband circularly polarized radiation

Author(s) -

Deng IChung,

Chen JinBo,

Ke QingXiang,

Chang JunRong,

Chang WoonFa,

King YuehTsu

Publication year - 2007

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.22881

Subject(s) - coplanar waveguide , broadband , slot antenna , turnstile antenna , optics , microwave , physics , ground plane , monopole antenna , radiation pattern , radiation , bandwidth (computing) , circular polarization , electrical engineering , antenna (radio) , engineering , telecommunications , microstrip

The design of a circular slot antenna for obtaining broadband circularly polarized (CP) radiation using a coplanar waveguide (CPW) feed is presented. The operation of the proposed antenna is achieved by protruding metallic mono‐strip from the circular ground plane towards the slot center at ϕ = 0° and feeding antenna using a 50‐Ω CPW with a protruded single strip at ϕ = 270°. In this design, the impedance bandwidth and 3 dB axial‐ratio bandwidth can reach as large as 50 and 36%, respectively. The peak of antenna gain is about 3.9 dBi, with gain variations <1 dBi for the frequencies within CP bandwidth. © 2007 Wiley Periodicals, Inc. Microwave Opt Technol Lett 49: 2728–2733, 2007; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.22881

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