Frequency Selective Surface for Ultra-Wide Band Filtering and Shielding

A frequency selective surface for spatial filtering in the standardized Ultra-Wide Band (UWB) frequency range is proposed. A very large stop-band of 1.75–15.44 GHz has been obtained, with good polarization insensitivity and an angular stability of more than 60 [Formula: see text] and more than 50 [F...

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Detalles Bibliográficos
Autores principales: De Sabata, Aldo, Matekovits, Ladislau, Buta, Adrian, Dassano, Gianluca, Silaghi, Andrei
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2022
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8914931/
https://www.ncbi.nlm.nih.gov/pubmed/35271041
http://dx.doi.org/10.3390/s22051896
Descripción
Sumario:A frequency selective surface for spatial filtering in the standardized Ultra-Wide Band (UWB) frequency range is proposed. A very large stop-band of 1.75–15.44 GHz has been obtained, with good polarization insensitivity and an angular stability of more than 60 [Formula: see text] and more than 50 [Formula: see text] in TE and TM incidence, respectively. Circuit models have been devised. The structure has been assessed by electromagnetic simulation and implemented on an FR4 substrate of 1.6 mm thickness, with an edge of the square-shaped unit cell of 15 mm. Tests in an anechoic chamber demonstrated good matching between simulation and experimental results and proper operation of the device.

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