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Single‐feed annular‐ring‐sector microstrip antenna for circular polarization
Author(s) -
Hsu WenHsiu,
Wong KinLu
Publication year - 1999
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/(sici)1098-2760(19990705)22:1<7::aid-mop3>3.0.co;2-y
Subject(s) - microstrip antenna , microstrip , patch antenna , microwave , optics , axial ratio , circular polarization , radius , radiation , polarization (electrochemistry) , engineering , materials science , physics , antenna (radio) , electrical engineering , telecommunications , computer science , chemistry , computer security
This paper presents a novel circular polarization (CP) design of single‐feed annular‐ring‐sector microstrip antennas. Experimental results indicate that, for the annular‐ring‐sector microstrip antenna with a flare angle less than about 64°, there exist a radius ratio (ratio between the patch's outer and inner radii) and a single‐feed position to achieve left‐hand or right‐hand CP radiation. Details of the novel single‐feed CP design are described, and obtained CP performances are presented and analyzed. ©1999 John Wiley & Sons, Inc. Microwave Opt Technol Lett 22: 7–10, 1999.