Title :
Compact cylindrical sector dielectric resonator antennas
Author :
Tam, M.T.K. ; Murch, R.D.
Author_Institution :
Dept. of Electr. & Electron. Eng., Hong Kong Univ., Hong Kong
Abstract :
We investigate cylindrical sector dielectric resonator antenna (DRA) geometries that are formed by removing a sector (or equivalently a wedge) of dielectric material from a circular cylinder. The advantage this geometry offers, compared to conventional cylindrical DRAs, are reductions in volume, support of "fractional modes", and allowance of dual-frequency/dual-feed operation. Approximate theory, simulation and experimental results are provided to support our findings. In particular, a cylindrical sector DRA is demonstrated to have 75% less volume than a conventional cylindrical DRA, with the same resonant frequency, giving it potential for use in wireless communication handsets.
Keywords :
antenna feeds; approximation theory; dielectric resonators; mobile antennas; multifrequency antennas; approximate theory; circular cylinder; compact cylindrical sector antennas; dielectric material; dielectric resonator antennas; dual-feed operation; dual-frequency operation; experimental results; fractional modes; resonant frequency; simulation; volume reduction; wireless communication handsets; Antenna feeds; Boundary conditions; Dielectric materials; Dielectric resonator antennas; Geometry; Magnetic separation; Resonance; Resonant frequency; Telephone sets; Wireless communication;
Conference_Titel :
Antennas and Propagation Society International Symposium, 1998. IEEE
Conference_Location :
Atlanta, GA, USA
Print_ISBN :
0-7803-4478-2
DOI :
10.1109/APS.1998.701590
