Convoluted and interdigitated hexagon loop unit cells for frequency selective surfaces

2011 ◽  
Vol 47 (4) ◽  
pp. 233 ◽  
Author(s):  
S.F. Zheng ◽  
Y.Z. Yin ◽  
H.L. Zheng ◽  
Z.Y. Liu ◽  
A.F. Sun
Keyword(s):  
Frequency Selective Surfaces ◽  
Unit Cells ◽  
Frequency Selective

Characterization of Radome Materials Comprising LTCC-Derived FSS on a Quartz Glass Plate

2014 ◽  
Vol 915-916 ◽  
pp. 679-684 ◽  
Author(s):  
Xi Geng Miao ◽  
Qing Wen Feng ◽  
Fabrizia Ghezzo ◽  
Xiao Wei Fang ◽  
Yu Tao Yue ◽  
...  
Keyword(s):  
High Temperature ◽  
Quartz Glass ◽  
Glass Plate ◽  
Frequency Selective Surface ◽  
Frequency Selective Surfaces ◽  
Low Dielectric ◽  
Unit Cells ◽  
Potential Benefits ◽  
Ceramic Glass ◽  
Frequency Selective

Frequency selective surfaces (FSS) and recent metamaterials (MTM) have shown unique electromagnetic characteristics and are of potential benefits for radome applications. To make the radomes/windows high-temperature resistant, the substrates of the frequency selective surfaces or metamaterials should be made of ceramic/glass-based materials of a low dielectric constant and a low loss tangent. However, fabricating ceramic/glass-based FSS or MTM is always challenging. In this paper, a constrained low-temperature co-fired ceramic (LTCC) technique was used to produce quartz glass-based radome material consisting of a frequency selective surface (FSs) layer embedded in a surface laminate. Due to the constrained sintering shrinkage, the geometry and the dimensions of the unit cells of the FSs were not subjected to significant variations and thus the measured electromagnetic (EM) wave transmission spectra matched those of the computer simulation results quite well. This preliminary work marks the beginning of our long-term efforts toward the goal of achieving high-temperature resistant, highly electromagnetic wave transparent, as well as carefullydesigned and fabricated radome materials.

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