A miniaturized self-actuated bandpass protection structure based on energy low-pass mechanism

In this paper, a miniaturized self-actuated bandpass protection structure with filtering and limiting functions is presented. Based on energy low-pass mechanism, this protection structure is sensitive to the power density or field intensity of incident wave. The unit cell dimensions and periodicitie...

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Bibliographic Details
Published in2017 International Symposium on Electromagnetic Compatibility - EMC EUROPE pp. 1 - 4
Main Authors Ke Wang, Peiguo Liu, Yujian Qin, Jijun Huang, Bo Yi
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.09.2017
Subjects
Electromagnetic compatibility
energy low-pass
HPM/EMP protection
Insertion loss
Microwave filters
miniaturized
PIN photodiodes
self-actuated
Switches
Wires
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Summary:In this paper, a miniaturized self-actuated bandpass protection structure with filtering and limiting functions is presented. Based on energy low-pass mechanism, this protection structure is sensitive to the power density or field intensity of incident wave. The unit cell dimensions and periodicities are sub-wavelength which is in the order of λ/15. Mechanism of operation, structural design, and full-wave simulation results of two prototypes are presented and discussed. Simulation results show that insertion loss for normal signals is less than 0.1 dB, and the shielding efficiency in 1 dB bandwidth in 1dB bandwidth is over 20.0 dB when high intensity wave incident. The structure can be deployed as an energy low-pass bandpass radome to protect the sensitive devices such as microwave receivers against high-power microwave/electromagnetic pulse (HPM/EMP) interference effectively.
ISSN:2325-0364
DOI:10.1109/EMCEurope.2017.8094798