Broadband and Ultrathin Frequency-Dispersive Metamaterial Screen for Reflectivity Reduction

被引：30

作者：

Deng, Tianwei ^{[1
,2
]}

Li, Zheng-Wen ^{[1
]}

Chua, Miao-Jun ^{[1
]}

Chen, Zhi Ning ^{[2
]}

机构：

[1] Natl Univ Singapore, Temasek Labs, Singapore 117411, Singapore

[2] Natl Univ Singapore, Dept Elect & Comp Engn, Singapore 117411, Singapore

来源：

IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION | 2015年 / 63卷 / 09期

关键词：

Frequency dispersive; metamaterial screen; negative capacitance and broadband; reflectivity reduction; DESIGN; THIN;

D O I：

10.1109/TAP.2015.2449896

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：

A frequency-dispersive magnetic material substrate is proposed to achieve the broad bandwidth of metamaterial screens for microwave absorption. Resonance-like ferrites with frequency-dispersive properties at resonant frequencies are applied as substrate. By mixing the multiple types of resonance-like ferrites, the desired bandwidth of frequency-dispersive magnetic material is further broadened. Simulated and measured results show that the proposed metamaterial screen can operate from 7.9 to 14.6 GHz with the reflectivity of less than -10 dB with thickness of only 1.1 mm (0.029 lambda(L)). A figure of merit (FoM) proposed to evaluate the absorption performance of the screen is 20.6 for the proposed screen.

引用

页码：4156 / 4160

页数：5

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