Design of a two-layer ultra-wideband microwave absorber

2010 ◽  
Author(s):  
Y X Gong ◽  
R Mittra ◽  
L Zhen ◽  
W Z Shao
Keyword(s):  
Microwave Absorber ◽  
Ultra Wideband

Ultra-wideband microwave absorber via an integrated metasurface and impedance-matching lattice design

2019 ◽  
Vol 52 (31) ◽  
pp. 31LT01 ◽  
Author(s):  
Xinmin Fu ◽  
Ya Fan ◽  
Jiafu Wang ◽  
Yongfeng Li ◽  
Mingde Feng ◽  
...  
Keyword(s):  
Impedance Matching ◽  
Microwave Absorber ◽  
Ultra Wideband ◽  
Lattice Design

scholarly journals Toward an Ultra-Wideband Hybrid Metamaterial Based Microwave Absorber

Micromachines ◽  
2020 ◽  
Vol 11 (10) ◽  
pp. 930
Author(s):  
Aicha El Assal ◽  
Hanadi Breiss ◽  
Ratiba Benzerga ◽  
Ala Sharaiha ◽  
Akil Jrad ◽  
...  
Keyword(s):  
Dielectric Layer ◽  
Ground Plane ◽  
Transverse Magnetic ◽  
Metamaterial Absorber ◽  
Microwave Absorber ◽  
Ultra Wideband ◽  
Periodic Pattern ◽  
Frequency Range ◽  
Coupled Resonators ◽  
Weight Percentage

In this paper, we propose a novel design of an ultra-wideband hybrid microwave absorber operating in the frequency range between 2 GHz and 18 GHz. This proposed hybrid absorber is composed of two different layers that integrate a multiband metamaterial absorber and a lossy dielectric layer. The metamaterial absorber consists of a periodic pattern that is composed of an arrangement of different scales of coupled resonators and a metallic ground plane, and the dielectric layer is made of epoxy foam composite loaded with low weight percentage (0.075 wt.%) of 12 mm length carbon fibers. The numerical results show a largely expanded absorption bandwidth that ranges from 2.6 GHz to 18 GHz with incident angles between 0° and 45° and for both transverse electric and transverse magnetic waves. The measurements confirm that absorption of this hybrid based metamaterial absorber exceeds 90% within the above-mentioned frequency range and it may reach an absorption rate of 99% for certain frequency ranges. The proposed idea offers a further step in developing new electromagnetic absorbers, which will impact a broad range of applications.

Design of ultra wideband microwave absorber effectual for objects of arbitrary shape

2015 ◽  
Vol 24 (12) ◽  
pp. 124101
Author(s):  
Yuan-Xun Gong ◽  
Zhong-Xiang Zhou ◽  
Jian-Tang Jiang ◽  
Hong-Jie Zhao
Keyword(s):  
Arbitrary Shape ◽  
Microwave Absorber ◽  
Ultra Wideband
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