TY - JOUR

T1 - A Wideband Conical Beam Cylindrical Dielectric Resonator Antenna

AU - Ambattu, Praveen

AU - Hamsakutty, V

AU - Yohannan, J

AU - Mathew, KT

PY - 2007

Y1 - 2007

N2 - 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.

AB - 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.

KW - Dielectric resonator antenna

KW - conical radiation pattern

KW - wideband antenna

U2 - 10.1109/LAWP.2006.890747

DO - 10.1109/LAWP.2006.890747

M3 - Journal article

VL - 6

SP - 15

EP - 17

JO - IEEE Antennas and Wireless Propagation Letters

JF - IEEE Antennas and Wireless Propagation Letters

SN - 1548-5757

ER -