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Radiation characteristics of an aperture‐coupled hemispherical dielectric resonator antenna
Author(s) -
Leung K. W.,
Luk K. M.
Publication year - 1994
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.4650071414
Subject(s) - dielectric resonator antenna , optics , radiation pattern , antenna (radio) , antenna aperture , physics , aperture (computer memory) , radiation , main lobe , antenna factor , coaxial antenna , antenna gain , antenna measurement , resonator , acoustics , electrical engineering , engineering
The radiation characteristics of an aperture‐coupled hemispherical dielectric resonator (DR) antenna excited at the broadside TE 111 mode is investigated both theoretically and experimentally. The Green's functions of the DR antenna are presented for the evaluation of fields in the upper‐half plane, and the stationary phase technique is used for the back‐lobe radiation. The effect of the slot length on the radiation is studied, and the cross‐polarized fields of the antenna are discussed. © 1994 John Wiley & Sons, Inc.