A Modified Vivaldi Antenna with Notched Frequency Characteristics
In this paper,a new type of vivaldi antenna,which covers 1.5~14GHz band,is proposed.By adding Y-shaped slots on both sides of the radiation patch,the surface current of the proposed antenna is converged to the tapered slot line.Meanwhile,the impedance matching capability of the proposed antenna is improved because of the extension of the surface current path.The proposed antenna provides 161%fractional bandwidth from 1.5GHz to 14GHz,with the gain has a maximum increase of 2dB at low frequency band compared with the original antenna.And the combination of the CSRR and Y-shaped structures improves the notched frequency characteristics of the proposed antenna,achieving an isolation in the WLAN frequency band(5.125~5.825 GHz).At last,the test result of the fabricated antenna demonstrates the reliability of the design.
Ultra-wideband Vivaldi antenna Y-shaped structures Notched frequency characteristics
Yaqiao Liu Jiangang Liang
College of Air and Missile Defence Collage,Air Force Engineering University,Xian 710051,China
国际会议
重庆
英文
1870-1873
2017-03-25（万方平台首次上网日期，不代表论文的发表时间）