An Ultra-Wideband and Wide-Angle Absorber Based on Tightly Coupled Dipole Array

被引：0
|
作者：
Zhu, Shengchi [1 ]
Zhou, Huaimin [1 ]
Quan, Xin [1 ]
Cao, Zhenxin [1 ]
机构：
[1] Southeast Univ, State Key Lab Millimeter Waves, 2 Sipailou Rd, Nanjing, Peoples R China
来源：
2022 IEEE 10TH ASIA-PACIFIC CONFERENCE ON ANTENNAS AND PROPAGATION, APCAP | 2022年
基金：
中国国家自然科学基金;
关键词：
Ultra; wideband absorber; tightly coupled dipole array (TCDA); wide-angle; antenna reciprocity; DESIGN;
D O I：
10.1109/APCAP56600.2022.10069718
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
In this paper, an ultra-wideband and wide-angle absorber based on tightly coupled dipole array (TCDA) is proposed with antenna reciprocity. Impedance matching at the input of the TCDA unit cell is maintained by replacing the generator with a lumped resistor. Benefiting from the advantages of ultra-wideband and wide-angle scanning of the TCDA, simulated results indicate that the proposed design provides more than 90% absorptivity ranging from 3.40 GHz to 13.79 GHz (120.9%) under normal incidence. When the incidence angle is increased to 60 and 70 degrees, fractional bandwidths of 102.6% and 73.4% for at least 80% absorption are still achieved respectively.
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页数：2
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