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Updated: Sep 30, 2025

Design and Characterization Methodology for Efficient Wide Range Tunable MEMS Filters
Published on: February 4, 2018
Frequency Selective Surface for Ultra-Wide Band Filtering and Shielding
Aldo De Sabata1, Ladislau Matekovits1,2,3, Adrian Buta1
1Department of Measurements and Optical Electronics, Politehnica University Timisoara, 300006 Timisoara, Romania.
Abstract:
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∘ and more than 50∘ 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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