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A wideband circularly polarized antenna with Γ‐shaped feed
Author(s) -
Fu Guang,
Zhang ZhiYa,
Zuo ShaoLi,
Lei Juan,
Gong ShuXi
Publication year - 2012
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.26503
Subject(s) - standing wave ratio , beamwidth , axial ratio , wideband , turnstile antenna , bandwidth (computing) , optics , microwave , circular polarization , electrical engineering , dipole antenna , physics , materials science , coaxial antenna , engineering , acoustics , antenna (radio) , microstrip antenna , telecommunications , microstrip
A wideband circularly polarized antenna with Γ‐shaped feed is presented.The proposed antenna is formed by two shorted bowtie patch antennas and two L‐shaped electric dipoles. It can achieve a measured impedance bandwidth for voltage standing wave ratio (VSWR) ≤ 1.5 of 52% and a 3‐dB axial ratio bandwidth of 55%. For the entire half‐power beamwidth, the axial ratio can be kept below 3 dB. A prototype has been fabricated and tested, and the experimental results validate the design procedure. © 2011 Wiley Periodicals, Inc. Microwave Opt Technol Lett 54:153–156, 2012; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.26503