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A novel design of a CPW‐fed square slot antenna with broadband circular polarization
Author(s) -
Chang KowMing,
Lin RenJie,
Deng IChung,
Chen JinBo,
Xiang Ke Qing,
Rong Chang Jun
Publication year - 2006
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.21951
Subject(s) - broadband , circular polarization , coplanar waveguide , square (algebra) , slot antenna , microwave , optics , axial ratio , return loss , turnstile antenna , physics , radiation pattern , radiation , bandwidth (computing) , electrical engineering , engineering , antenna (radio) , telecommunications , mathematics , microstrip , geometry
A novel design of a broadband circularly polarized square slot antenna fed by a single coplanar waveguide is proposed and discussed. The circularly polarized radiation is achieved by means of using an outer rectangular ring and an inner rectangular ring at the center of a square slot. The proposed antenna has the fundamental resonant frequency of 2.44 GHz with the return loss of −40.93 dB, and it has the bandwidth of 3 dB axial ratio of 420 MHz or (17.21%). Details of the results are presented and discussed. © 2006 Wiley Periodicals, Inc. Microwave Opt Technol Lett 48: 2456–2459, 2006; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.21951