Title :
Frequency tuning of the dielectric resonator antenna using a loading cap
Author :
Ng, H.K. ; Leung, K.W.
Author_Institution :
Dept. of Electron. Eng., City Univ. of Hong Kong, China
fDate :
3/1/2005 12:00:00 AM
Abstract :
A rigorous analysis of the slot-coupled hemispherical dielectric resonator top-loaded by a conducting cap is presented. The resonant frequency of the antenna can be tuned by changing the size of the loading cap. Measurements were carried out to verify the calculations, and reasonable agreement between theory and experiment is obtained.
Keywords :
antenna radiation patterns; dielectric resonator antennas; dielectric-loaded antennas; microstrip antennas; slot antennas; DRA; conducting cap; dielectric resonator top-loaded antenna; frequency tuning; parasitic patch antenna; resonant frequency; slot-coupled hemispherical antenna; Antenna measurements; Dielectric constant; Dielectric losses; Dielectric measurements; Dielectric resonator antennas; Loaded antennas; MMICs; Microstrip; Resonant frequency; Tuning; Dielectric resonator antenna (DRA); frequency tuning; parasitic patch;
Journal_Title :
Antennas and Propagation, IEEE Transactions on
DOI :
10.1109/TAP.2004.842583
