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High‐permittivity dielectric resonator antenna excited by a rectangular waveguide
Author(s) -
Leung K. W.,
Lo H. Y.,
So K. K.,
Luk K. M.
Publication year - 2002
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.10401
Subject(s) - dielectric resonator antenna , microwave , excited state , optics , return loss , radiation pattern , aperture (computer memory) , permittivity , dielectric resonator , equilateral triangle , resonator , slotted waveguide , dielectric , antenna (radio) , materials science , optoelectronics , electrical engineering , slot antenna , physics , engineering , acoustics , telecommunications , atomic physics , geometry , mathematics
A low‐profile equilateral‐triangular dielectric resonator antenna (DRA) of very high permittivity (ε r = 82) is excited with the use of a rectangular waveguide. It is found that the present configuration has a very wide impedance bandwidth of 11.4%, which is 3.8 times of that of the previous aperture‐coupled DRA. The return loss, radiation patterns, and antenna gain of the new configuration are investigated. © 2002 Wiley Periodicals, Inc. Microwave Opt Technol Lett 34: 157–158, 2002; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.10401