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Design of an annular‐ring microstrip antenna for circular polarization
Author(s) -
Row JeenSheen,
Lin KuangWoei
Publication year - 2004
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.20237
Subject(s) - microstrip antenna , microwave , patch antenna , microstrip , optics , radiation , circular polarization , polarization (electrochemistry) , axial ratio , antenna (radio) , engineering , materials science , electrical engineering , physics , telecommunications , chemistry
Abstract A new circular‐polarization (CP) design of an annular‐ring microstrip antenna operating at the fundamental TM 11 mode is presented. The CP radiation of the proposed design is achieved by connecting an L‐shaped strip to two orthogonal sides of the inner boundary of the annular‐ring patch. A prototype of the proposed antenna fabricated on a foam substrate has been implemented and studied. The results show that good CP‐radiation performances are obtained and the 3‐dB axial ratio is about 2%. Good agreement is also obtained between the measured and simulated results. © 2004 Wiley Periodicals, Inc. Microwave Opt Technol Lett 42: 156–157, 2004; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.20237