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Single‐feed elliptical dielectric resonator antennas for circularly polarized applications
Author(s) -
Yang S. L. Steven,
Chair Ricky,
Kishk A. A.,
Lee K. F.,
Luk K. M.
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.21937
Subject(s) - dielectric resonator antenna , optics , axial ratio , dielectric resonator , bandwidth (computing) , microwave , impedance matching , circular polarization , dielectric , resonator , aperture (computer memory) , antenna feed , physics , electrical impedance , engineering , microstrip antenna , electrical engineering , antenna (radio) , optoelectronics , antenna factor , acoustics , telecommunications , microstrip
A single‐feed elliptical shape dielectric resonator antenna (DRA) is designed for circular polarization application. The antenna is simple in structure and could be excited by either a probe or a narrow aperture. This antenna excites two degenerate orthogonal modes with 90° phase difference. From experimental studies, the single probe feed DRA achieves 5.2% 3‐dB axial ratio (AR) bandwidth and 17.3% impedance matching bandwidth (S 11 < −10 dB), and the single aperture feed DRA achieves 4.2% AR bandwidth and 26.5% impedance matching bandwidth. © 2006 Wiley Periodicals, Inc. Microwave Opt Technol Lett 48:2340–2345, 2006; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.21937