TY - GEN
T1 - Research on the improvement of tightly coupled antipodal Vivaldi antenna array
AU - Chen, Qi
AU - Xue, Zhenghui
AU - Ren, Wu
AU - Li, Weiming
N1 - Publisher Copyright:
© 2018 IEEE.
PY - 2018/7/2
Y1 - 2018/7/2
N2 - 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 won't appear at the array pattern within the band of 2-12 GHz.
AB - 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 won't appear at the array pattern within the band of 2-12 GHz.
KW - antipodal Vivaldi
KW - tightly coupled array
KW - triangle array Introduction
UR - http://www.scopus.com/inward/record.url?scp=85062830775&partnerID=8YFLogxK
U2 - 10.1109/ISAPE.2018.8634156
DO - 10.1109/ISAPE.2018.8634156
M3 - Conference contribution
AN - SCOPUS:85062830775
T3 - 2018 12th International Symposium on Antennas, Propagation and EM Theory, ISAPE 2018 - Proceedings
BT - 2018 12th International Symposium on Antennas, Propagation and EM Theory, ISAPE 2018 - Proceedings
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 12th International Symposium on Antennas, Propagation and EM Theory, ISAPE 2018
Y2 - 3 December 2018 through 6 December 2018
ER -