Research on the improvement of tightly coupled antipodal Vivaldi antenna array
A method which is the combination of traditional antipodal Vivaldi and tightly coupled approach is proposed in this paper to meet the demands of the application of ultrawideband phased array antenna.Through the improvement of the combination structure,the performance of broadband array has been greatly improved.Firstly,by adding the truncated arms to the edge elements at both ends to compensate the edge elements.Then,by changing the bottom exponential curve of the antipodal Vivaldi to a special curve to obtain better low-frequency performance,the array has a VSWR of less than 2.5 within the band of 2-12 GHz.Finally,by arraying triangle arrays and controlling the number of elements in each row,the grating lobes and lobe-splitting phenomenon wont appear at the array pattern within the band of 2-12 GHz.
tightly coupled array antipodal Vivaldi triangle array Introduction
Qi Chen Zhenghui Xue Wu Ren Weiming Li
EMC and Microwave System Lab Beijing Institute of Technology Beijing,China
国际会议
杭州
英文
1-4
2018-12-03（万方平台首次上网日期，不代表论文的发表时间）