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Dual-functional active frequency selective surface using parallel feeding configuration and its equivalent circuit model

机译:使用并联馈电配置的双功能有源频率选择表面及其等效电路模型

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摘要

A dual-functional active frequency selective surface (AFSS), which integrates twornindependent and dividable functions, is presented in this article. The proposedrnstructure consists of two orthogonally arranged metallic layers, separated by a thinrndielectric layer. Different active devices, including varactor diodes and PIN diodes,rnare loaded on top and bottom metallic layers, separately. Thus, the frequency tuningrnfunction for transverse magnetic waves and the electromagnetic switching functionrnfor transverse electric waves can be attained, respectively, by controlling thernworking states of these active components. In addition, a novel feeding configurationrnis designed to mitigate the negative impact of the bias network and providernparallel feeding topology simultaneously. Detailed equivalent circuit models forrndifferent polarizations and states are constructed to characterize the AFSS structure.rnFinally, a prototype of the proposed structure is fabricated and measured for verification,rnand the experimental observations agree well with the simulated results.rnThis dual-functional AFSS could be an important step toward multifunctionalrnAFSSs that are endowed with more than two electromagnetic functions.
机译:本文介绍了一个集成了两个独立且可分开的功能的双功能有源频率选择表面(AFSS)。所提出的结构由两个正交排列的金属层组成,两个金属层之间由一个薄介电层隔开。将不同的有源器件(包括变容二极管和PIN二极管)分别加载到顶部和底部金属层上。因此,通过控制这些有源部件的工作状态,可以分别获得用于横电磁波的频率调谐功能和用于横电磁波的电磁开关功能。另外,设计了一种新颖的馈电配置,旨在同时减轻偏置网络和提供商并行馈电拓扑的负面影响。最后,针对不同的极化和状态建立了详细的等效电路模型,以表征AFSS结构。rn最后,制造了该结构的原型并对其进行了测量以进行验证,实验结果与模拟结果吻合良好。具有多功能电磁AFSS的重要一步,该AFSS具有两个以上的电磁功能。

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  • 作者单位

    Department of Electronic Information Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing, China Microwave and Radiation Laboratory, Department of Information Engineering, University of Pisa, Pisa, Italy;

    Microwave and Radiation Laboratory, Department of Information Engineering, University of Pisa, Pisa, Italy;

    Department of Electronic Information Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing, China;

    Department of Electronic Information Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing, China;

    Department of Electronic Information Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing, China;

    Microwave and Radiation Laboratory, Department of Information Engineering, University of Pisa, Pisa, Italy;

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  • 正文语种 eng
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  • 关键词

    active frequency selective surface; equivalent circuit model; switching; tuning;

    机译:有源频率选择表面等效电路模型交换;调音;

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