Title :
UWB 4-element ridge-SIW vivaldi antenna array
Author :
Kazemi, Riza ; Fathy, Aly E.
Author_Institution :
Fac. of Electr. & Comput. Eng., Univ. of Tabriz, Tabriz, Iran
Abstract :
A 4-element uniform Vivaldi antenna array fed by a novel ridge SIW (RSIW) feed network has been developed using a two-layer substrate. The low cost planar RSIW divider is designed for wide band operation to sustain the inherent wide bandwidth of the Vivaldi array that is fed by a very wide band GCPW to RSIW transition as well. The proposed antenna structure has been fabricated and showed good radiation characteristics and less than 1.5:1 VSWR over a wide bandwidth exceeding 55% with a maximum gain of 6-10 dB and over 87% efficiency over 6 to 10 GHz. Measured results are in good agreement with simulated ones.
Keywords :
antenna arrays; antenna feeds; antenna radiation patterns; coplanar waveguides; ultra wideband antennas; 4-element uniform Vivaldi antenna array fed; RSIW feed network; UWB 4-element ridge-SIW Vivaldi antenna array; VSWR; antenna structure; frequency 6 GHz to 10 GHz; gain 6 dB to 10 dB; planar RSIW divider; radiation characteristics; ridge SIW; two-layer substrate; ultrawideband communication; very wide band GCPW-to-RSIW transition; wide band operation; Antenna measurements; Arrays; Feeds; Gain; Vivaldi antennas; Wideband;
Conference_Titel :
Antennas and Propagation Society International Symposium (APSURSI), 2014 IEEE
Conference_Location :
Memphis, TN
Print_ISBN :
978-1-4799-3538-3
DOI :
10.1109/APS.2014.6904846
