Title :
Hemispherical dielectric resonator antenna with a concentric conductor
Author :
Luk, K.M. ; Leung, K.W. ; Yung, E.K.N.
Author_Institution :
Dept. of Electron. Eng., City Univ. of Hong Kong, Kowloon, Hong Kong
Abstract :
A hemispherical dielectric resonator antenna with a concentric conductor is studied theoretically. The new configuration offers a wider bandwidth and a higher resonant frequency than that without the conductor. The exact electric field Green´s function due to the probe current is presented, and the moment method is used to solve the probe current from which the broadside TE/sub 111/ mode VSWR is determined. The effects of the probe displacement and of the probe length on the VSWR are discussed.
Keywords :
Green´s function methods; antenna theory; dielectric resonators; method of moments; millimetre wave antennas; MM wave band; bandwidth; broadside TE/sub 111/ mode VSWR; concentric conductor; electric field Green´s function; hemispherical dielectric resonator antenna; moment method; probe current; probe displacement; probe length; resonant frequency; Antenna theory; Bandwidth; Conductors; Dielectric losses; Dielectric resonator antennas; Green´s function methods; Impedance matching; Moment methods; Probes; Resonant frequency;
Conference_Titel :
Antennas and Propagation Society International Symposium, 1995. AP-S. Digest
Conference_Location :
Newport Beach, CA, USA
Print_ISBN :
0-7803-2719-5
DOI :
10.1109/APS.1995.530121
