Qihui Zhou, Peiguo Liu, Chenxi Liu, Ning Zhao, Run-dong Zheng
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A dual-band energy selective surface with hexagonal spiral structure
In this article, a dual-band energy selective surface (ESS) which allows normal signal to pass and shields high power microwave (HPM) in the operating bands is designed. The ESS is consisted of hexagonal spiral patch and pin diode arrays. The state of pin diodes converts in the light of intensity of incident wave, and the ESS shapes reflective barrier to cut off HPM when diodes are off. The article evaluates the property of energy selectivity by measure the transmission coefficient of the ESS. Simulation results are presented and show that ESS has the ingredient of energy law pass over the frequency band from 3.45 GHz to 3.95 GHz and 8.3 GHz to 8.9 GHz, and the property is still reliable when the incident angle changes.