Title :
Self-aligned microstrip-fed spherical dielectric resonator antenna
Author :
Lopez Cuenca, Daniel ; Hesselbarth, Jan
Author_Institution :
Inst. fur Hochfrequenztech., Univ. Stuttgart, Stuttgart, Germany
Abstract :
A new concept for a microstrip-fed spherical dielectric resonator antenna is presented. A microstrip resonating structure on thin substrate is used to feed a spherical dielectric resonator. Precise alignment of the spherical dielectric resonator with respect to the microstrip feed is ensured by a shallow hole in the microstrip substrate placed close to the feed structure. Use of a higher-order resonance mode of the dielectric sphere eases excitation and increases directivity of radiation. Simulations and measurements of prototypes operating at 6 GHz are disclosed.
Keywords :
antenna feeds; antenna radiation patterns; dielectric resonator antennas; microstrip antennas; microstrip resonators; dielectric sphere higher-order resonance mode; frequency 6 GHz; microstrip feed; microstrip resonating structure; radiation directivity; radiation excitation; self-aligned microstrip fed spherical dielectric resonator antenna; spherical dielectric resonator alignment; thin microstrip substrate; Antenna measurements; Arrays; Dielectric resonator antennas; Dielectrics; Feeds; Microstrip resonators; dielectric resonator antenna; spherical resonator;
Conference_Titel :
Antennas and Propagation (EuCAP), 2015 9th European Conference on
