Ambattu, Praveen and Hamsakutty, V and Yohannan, J and Mathew, KT (2007) A Wideband Conical Beam Cylindrical Dielectric Resonator Antenna. IEEE Antennas and Wireless Propagation Letters, 6. pp. 15-17. ISSN 1548-5757
Full text not available from this repository.Abstract
The letter proposes a novel cylindrical dielectric resonator antenna (DRA) geometry with low radiation Q-value facilitating wide band operation with conical radiation patterns. The DRA is fed by a microstrip transmission line with a vertical strip that is attached to the DRA surface. At optimum dimensions and position of the vertical strip on the horizontal microstrip, the DRA exhibits an impedance bandwidth ( $vert {rm S}_{11}vert < - 10$ dB) of ${sim}35hbox{%}$ at the centre frequency of 3 GHz. Measured radiation patterns are conical in shape and are stable with moderate gain across the matching band.