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Enhancement of Dual-Band Reflection-Mode Circular Polarizers Using Dual-Layer Rectangular Frequency Selective Surfaces - MaRDI portal

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Enhancement of Dual-Band Reflection-Mode Circular Polarizers Using Dual-Layer Rectangular Frequency Selective Surfaces

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Publication:4572392

DOI10.1109/TAP.2016.2593931zbMATH Open1391.78109arXiv1805.05414MaRDI QIDQ4572392

Author name not available (Why is that?)

Publication date: 18 July 2018

Published in: (Search for Journal in Brave)

Abstract: A new kind of dual-band reflection-mode circular polarizers (RMCPs) is introduced with wide bandwidth and wide-view at the operating frequencies. The proposed RMCPs are based on dual-layer rectangular patches on both sides of a substrate, separated by a foam or air layer from the ground plane. Required TE susceptance of the first layer patches to produce circular polarization is calculated using the equivalent transmission line model. Dimensions of the RMCP are obtained using parametrical study for the two frequency bands, 1.9-2.3 GHz and 7.9-8.3 GHz. In addition, it is indicated that the accepted view angle and bandwidth of the proposed dual-layer RMCP are improved compared with the single layer RMCP, significantly. Moreover, a tradeoff is observed for the dual-layer RMCP on the bandwidths of X band and S band that can be controlled by propagation angle of the incident wave. The proposed RMCP has 30.5 % and 33.7 % bandwidths for less than 3 dB axial ratio with incident angles { heta}max=50{deg} and { heta}min=35{deg}. Finally, simulation results are met by the measurement for three angles of the incident wave.


Full work available at URL: https://arxiv.org/abs/1805.05414




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