Title :
Probe-fed section-cylindrical dielectric resonator antennas
Author_Institution :
Dept. of Electr. Eng., Chinese Mil. Acad., Feng-Shan, Taiwan
Abstract :
Probe-fed section-cylindrical DRAs are studied by using the three-dimensional finite-difference time-domain (FDTD) method. To achieve the low-profile feature, the section-cylindrical DRAs are made of high-dielectric-constant materials. The rectangular coordinate rather than cylindrical coordinate is used due to the offset probe feed and section-cylindrical structure. The boundary between DRA and free space is approximated by staircased Yee cells Input impedance and radiation patterns are calculated and presented.
Keywords :
antenna feeds; antenna radiation patterns; dielectric resonators; finite difference time-domain analysis; waveguide antennas; cylindrical coordinate; input impedance; low-profile feature; offset probe feed; probe-fed section-cylindrical dielectric resonator antennas; radiation patterns; rectangular coordinate; staircased Yee cells; three-dimensional finite-difference time-domain method; Antenna radiation patterns; Dielectric constant; Dielectric losses; Dielectric resonator antennas; Feeds; Finite difference methods; Frequency; Impedance; Probes; Time domain analysis;
Conference_Titel :
Microwave Conference, 2001. APMC 2001. 2001 Asia-Pacific
Conference_Location :
Taipei, Taiwan
Print_ISBN :
0-7803-7138-0
DOI :
10.1109/APMC.2001.985529
