期刊
IEEE TRANSACTIONS ON ELECTROMAGNETIC COMPATIBILITY
卷 57, 期 1, 页码 22-26出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TEMC.2014.2358686
关键词
Broadband; capacitive surface; impedance; thin absorber
In this paper, a novel thin, broadband, single polarization capacitive surface-based absorber is proposed and investigated. First, the impedance of a substrate and matching surface are analyzed and used for the determination of the structure parameters of the microwave absorber. Second, by utilizing infinite strip gratings with lumped resistors, a capacitive surface-based absorber is presented with 48.6% thickness reduction and 11.7% bandwidth enhancement in comparison to the Salisbury screen. Finally, a prototype of the proposed absorber is fabricated and measured for validation. The proposed method provides an efficient way for the design of thin broadband microwave absorbers.
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