Title :
Improvement of far field patterns of antipodal vivaldi antennas with step impedance resonator
Author :
Yu-Laung Hshieh ; Neng-Tain Huang ; Yao-Chiang Kan ; His-Tseng Chou
Author_Institution :
Dept. of Commun. Eng. & Commun. Res. Cent, Yuan Ze Univ., Chungli, Taiwan
Abstract :
This paper investigates the effects of step impedance resonator (SIR) on the bandwidth broadening and improvement of far field pattern of antipodal Vivaldi antenna. The antenna designed has the impedance bandwidth from 5.5GHz to beyond 30GHz, which covers from the X band to Ka band. This new configuration for the edge comb is presented which improves the front-to-back ratio of the antenna over the operating frequency 5.5 GHz to 30.0 GHz.
Keywords :
antenna radiation patterns; microwave antennas; millimetre wave antennas; resonators; Ka band antenna; X band antenna; antipodal Vivaldi antennas; bandwidth broadening; edge comb configuration; far field pattern; frequency 5.5 GHz to 30.0 GHz; step impedance resonator; Bandwidth; Directive antennas; Impedance; Loaded antennas; Loading; Vivaldi antennas;
Conference_Titel :
Antennas and Propagation Society International Symposium (APSURSI), 2013 IEEE
Conference_Location :
Orlando, FL
Print_ISBN :
978-1-4673-5315-1
DOI :
10.1109/APS.2013.6711101
