TITLE

Low windage resistance frequency-selective rasorber based on windmill-shape coupling line arrays

AUTHOR(S)
Yuehong Hu; Shaobin Liu; Xiangkun Kong; Chenyang Mao
PUB. DATE
October 2017
SOURCE
Electronics Letters;10/26/2017, Vol. 53 Issue 22, p1450
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
In this Letter, the authors report on the analysis, design, fabrication and measurement of a low windage resistance frequency selective rasorber (FSR) based on windmill-shape coupling slot line arrays. A lossy structure is added to the traditional frequency selective surface structure to make up a FSR with the characteristics of small insertion loss within the passband and weak reflection at frequencies below and above the passband meanwhile. In addition, the hollow structure can reduce windage resistance effectively. The measurements show that an insertion loss of 1.01 dB can be obtained at 7.71 GHz, while both lower and upper passband edges have at least 10 dB reflection reduction under the normal incidence. Both simulation and experiment results exhibit that the proposed FSR is insensitive to both transverse-electric (TE) and transverse-magnetic (TM) polarisation. The proposed FSR can be applied in the field of radome, cloaking and other microwave applications.
ACCESSION #
125961791

 

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