一种用于射频和微波应用的新型可调谐高阻抗表面电磁带隙材料

2015 IEEE MTT-S International Microwave Workshop Series on Advanced Materials and Processes for RF and THz Applications (IMWS-AMP) Pub Date : 2015-07-01 DOI:10.1109/IMWS-AMP.2015.7324931

T. Loh, Z. Tian, P. Patel

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引用次数: 1

摘要

提出了一种新型的基于变容体的电子可调谐高阻抗表面电磁带隙(hs - ebg)超材料。该结构基于双层蘑菇状HIS-EBG地平面，通过控制变容管上的直流偏置电压，可以调节有效电容，从而改变谐振频率。为了评估电磁抑制性能，将该结构作为地平面集成到微带传输线中，并在500 MHz-10 GHz频段对其进行了实验表征。对整个微带系统的传输系数进行了数值模拟。仿真结果与实测结果进行了比较。

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A novel tunable high impedance surface electromagnetic band gap metamaterials for RF and microwave applications

This paper presents a novel varactor based electronically tunable high impedance surface electromagnetic band-gap (HIS-EBG) metamaterial. The proposed structure is based on two-layer mushroom-like HIS-EBG ground plane, in which by controlling the DC bias voltage on the varactors, the effective capacitance can be adjusted which alters the resonance frequency. To assess the electromagnetic (EM) wave suppression property the structure is incorporated, as the ground plane, in a microstrip transmission line and it is experimentally characterized over the 500 MHz-10 GHz frequency band. Numerical simulations of the transmission coefficient for the whole microstrip system were performed. Both the simulation and measurement results are compared.

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来源期刊

2015 IEEE MTT-S International Microwave Workshop Series on Advanced Materials and Processes for RF and THz Applications (IMWS-AMP)

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