Broadband microwave metamaterial absorber with lumped resistor loading

Narrow absorption bandwidth has been a fundamental drawback hindering many metamaterial absorbers for practical applications. In this paper, by loading lumped resistors, we have successfully designed a microwave metamaterial absorber with multioctave wide absorption bandwidth covering the entire X-...

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Bibliographic Details
Published inEPJ applied metamaterials Vol. 6; p. 1
Main Authors Chen, Ke, Luo, Xinyao, Ding, Guowen, Zhao, Junming, Feng, Yijun, Jiang, Tian
Format Journal Article
LanguageEnglish
Published Les Ulis EDP Sciences 2019
Subjects
Absorbers
Absorbers (materials)
Bandwidths
Boundary conditions
Broadband
Design
Electromagnetic compatibility
Energy
lumped resistor
metamaterial absorber
Metamaterials
microwave
Microwave absorption
Musical performances
Resistors
Simulation
Wave power
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Summary:Narrow absorption bandwidth has been a fundamental drawback hindering many metamaterial absorbers for practical applications. In this paper, by loading lumped resistors, we have successfully designed a microwave metamaterial absorber with multioctave wide absorption bandwidth covering the entire X- and Ku-bands, while keeping the thickness of the absorber less than 1/10 of the working wavelength. The polarization-insensitive absorber shows a good angular stability for both transverse electric (TE) and transverse magnetic (TM) incidences. Prototype has been fabricated and measured to validate the design principle and the simulated results, and good agreements are observed between simulated and measured results. The proposed metamaterial absorber offers an efficient way to realize broadband microwave absorption with stable angular performance, which may find potential uses in many applications, for example, electromagnetic compatibility.
ISSN:2272-2394
2272-2394
DOI:10.1051/epjam/2018011