A Novel Polarization Independent Wideband Circuit Analog Absorber Using Crossed Loops
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Date
2018-09
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Mark
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Společnost pro radioelektronické inženýrství
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Abstract
In this paper, a polarization independent wideband circuit analog absorber is proposed. The structure consists of two dimensional periodic array of crossed loops embedded with lumped resistors printed on dielectric substrates backed by a metal plate. It offers a -10 dB reflectivity (90%absorptivity) fractional bandwidth of 126.5% (4.6 GHz to 20.45 GHz). The total thickness of the absorber (dielectric+ air gap) is about 0.084λL at the lowest frequency. The effect of different structural parameters on absorption characteristics are studied and presented. The prototype of the proposed absorber is fabricated and the measured responses are in good agreement with simulated results.
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Citation
Radioengineering. 2018 vol. 27, č. 3, s. 738-745. ISSN 1210-2512
https://www.radioeng.cz/fulltexts/2018/18_03_0738_0745.pdf
https://www.radioeng.cz/fulltexts/2018/18_03_0738_0745.pdf
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Peer-reviewed
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en