1 September 2015 Cascaded metasurfaces for broadband antenna isolation
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Abstract
In this paper, we present a computational and experimental design of a metasurface for broadband microwave antenna isolation. Our current emphasis is on the development of a high-impedance surface (HIS) that enables broadband isolation between transmit and receive antennas. For our specific HIS, we have formed a cascade of HIS unit cells and have thus expanded the isolation to provide 56 dB/meter over one octave (7.5 to 18 GHz) relative to the bare metal ground plane. Computational models are used to design the cascaded structure to assure maximum isolation amplitude and bandwidth.
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David Shrekenhamer, David Shrekenhamer, Joseph A. Miragliotta, Joseph A. Miragliotta, Robert Scott, Robert Scott, Allan Jablon, Allan Jablon, Jerry Friedman, Jerry Friedman, Derek Harshbarger, Derek Harshbarger, Daniel F. Sievenpiper, Daniel F. Sievenpiper, } "Cascaded metasurfaces for broadband antenna isolation", Proc. SPIE 9544, Metamaterials, Metadevices, and Metasystems 2015, 954424 (1 September 2015); doi: 10.1117/12.2188413; https://doi.org/10.1117/12.2188413
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