A polarization-insensitive ultra-wideband absorber based on hybrid structure

被引：0

作者：

Xue, Kun ^{[1
]}

Sun, Haoliang ^{[1
]}

Qin, Yifeng ^{[1
]}

Zhu, Hongyi ^{[2
]}

Dong, Shaohua ^{[1
]}

机构：

[1] Peng Cheng Lab, Shenzhen, Peoples R China

[2] Shanghai Engn Res Ctr Broadband Technol & Applicat, Shanghai, Peoples R China

来源：

ELECTRONICS LETTERS | 2023年 / 59卷 / 14期

基金：

中国国家自然科学基金;

关键词：

microwave absorption; ultra wideband technology; DESIGN; THIN;

D O I：

10.1049/ell2.12879

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：

With the continuous improvement of detection technology, the survivability of targets on the battlefield is facing great challenges. Consequently, microwave absorbers with stealth characteristics are of important research value to modern military. Aim at solving the problems of narrow bandwidth or complex structure, an implementation model of ultra-wideband (UWB) absorber based on hybrid structure is proposed. In this letter, a polarization-insensitive ultra-wideband absorber (PIUWA) is designed, manufactured, and characterized, which has a good absorptivity of more than 90% ranges from 4 to 24.53GHz (the fractional bandwidth [FBW] is 144%) by triggering multiple resonance peaks in the hybrid structure. In addition, the subwavelength periodicity of the PIUWA is theoretically beneficial to the angular stability under full-wave polarizations. The operating mechanism of the PIUWA is demonstrated by the equivalent circuit model and the correctness of the design is verified by experimental measurements. This letter contributes to the approach of designing and fabricating UWB microwave absorbers with high absorptivity, good angular stability, and simpler assembly procedure.

引用

页数：4

共 20 条

[1] Broadband metamaterial microwave absorber based on asymmetric sectional resonator structures [J].