A Nested Square Shaped Metasurface-Based Broadband Linear Polarization Converter for Ku-Band Applications

Year 2023, Volume: 12 Issue: 1, 192 - 198, 22.03.2023

Yunus Kaya

https://doi.org/10.17798/bitlisfen.1220957

Abstract

This paper presents a wideband, thin, low-cost, and easy to fabricate linear polarization (LP) converter design utilizing metasurface (MS) for Ku-band (12-18 GHz) applications (also in the 18-19 GHz part of the K-band (18-27 GHz)). The design has a topology on a 1.6 mm thick FR-4 dielectric material with copper MS on the front and an entirely copper slab on the back. The presented design shows a polarization conversion ratio (PCR) of beyond 90% within the 12-19 GHz frequency band and also over 99% in the 12.5-13.1 and 16.32-17.64 GHz frequency ranges. To further give insight into the physical structure of the suggested MS-based polarization converter (PC), both the u – v axes are analyzed, and the existing surface behaviors at resonance frequencies are investigated. We compare the performance outputs with other Ku-band PCs, and the efficiencies of the suggested strategy over current MS-based LP converters are emphasized.

Keywords

Ku-band, Metasurface, Broadband, Linear polarization converter

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