Title :
Wide-band and low sidelobe array of rectangular dielectric resonator antennas with parasitic elements
Author :
Ranjbar Nikkhah, M. ; Rashed-Mohassel, Jalil ; Kishk, Ahmed A.
Author_Institution :
Center of Excellence on Appl. Electromagn., Univ. of Tehran, Tehran, Iran
Abstract :
A two dimensional array of 8×2 subarrays is presented. The subarrays are made of a driven rectangular dielectric resonator antenna (DRA) and parasitically coupled to another DRA elements placed in the H-plane. The driven element is excited by a narrow slot aperture. The subarray is designed to have two resonances that are used to enhance the bandwidth. A microstrip feeding network is design for power distribution tapering that achieves a 20dB sidelobe level. The array achieved a matching bandwidth of 22% with VSWR <; 2. The results are verified numerically.
Keywords :
antenna arrays; antenna feeds; dielectric resonator antennas; microstrip lines; driven rectangular dielectric resonator antenna; low sidelobe array; microstrip feeding network; parasitic elements; power distribution tapering; wideband array; Antennas; Arrays; Bandwidth; Finite difference methods; Gain; Substrates; Time-domain analysis; Dielectric resonator antenna; parasitic array; wide-band;
Conference_Titel :
Multimedia Computing and Systems (ICMCS), 2014 International Conference on
Conference_Location :
Marrakech
Print_ISBN :
978-1-4799-3823-0
DOI :
10.1109/ICMCS.2014.6911219
