Multifrequency super-thin cloaks

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• 作者：Jiafu Wang^a ; ^{wangjiafu1981@126.com" class="auth_mail} ; ^{haomeijuan@126.com" class="auth_mail} ; ^{qushaobo@mail.xjtu.edu.cn" class="auth_mail} ; Shaobo Qu^a ; ^b ; Zhuo Xu^b ; Anxue Zhang^b ; ^c ; Hua Ma^a ; ^b ; Jieqiu Zhang^a ; Hongya Chen^a ; Mingde Feng^a
• 关键词：Cloak ; Multi-band ; Patch antenna ; Microwave network
• 刊名：Photonics and Nanostructures - Fundamentals and Applications
• 出版年：April, 2014
• 年：2014
• 卷：12
• 期：2
• 页码：130-137
• 全文大小：2003 K

文摘

Bandwidth and thickness have become the most troublesome problems for EM cloaks. In this paper, we propose to solve the two problems using connected patches based on the microwave network model. By covering an obstacle with combined connected patches, cloaking effect can be achieved at multiple frequencies so as to expand the operating band. As an explicit example, a dual-band super-thin cloak using two different connected patch unit cells is demonstrated. Cloaking effect can be achieved at 3.50 GHz and 4.14 GHz simultaneously with an 8 dB transmission enhancement. The cloak design method provides a new route to broadening the bandwidth of thin EM cloaks.