Multi-functional Multi-band Metasurface for Linear and Circular Polarization in Reflection Mode

Year 2024, Volume: 14 Issue: 1, 26 - 30, 29.02.2024

Abdülkadir Çıldır

https://doi.org/10.35354/tbed.1414946

Abstract

A new metasurface design is presented in multi and broad frequency bands. Metasurface has been designed on Roger 5880 substrate with a thickness of 1.575 mm. The top of the designed metasurface consists of two diagonal mirror m-shaped unit cells. The background plane covers the whole metasurface. Numerical results demonstrate the metasurface's capability for both linear (12.48-13.62 GHz, 19.00-27.64 GHz, 39.45-41.72 GHz, 44.68-45.18 GHz, and 47.52-48.28 GHz) and circular (11.5-12.07 GHz, 30.01-37.77 GHz, 42.3-44.2 GHz, 45.45-47.1 GHz, 48.7-49.54 GHz) polarization conversion with over 90% efficiency. At the same time, the metasurface has good angular stability up 45^0.

Keywords

Metasurface, Unit cell, Polarization, Conversion, Reflection

Yansıma Modunda Doğrusal ve Dairesel Polarizasyon için Çok Fonksiyonlu Çok Bantlı Metasurface

Abstract

Çoklu ve geniş frekans bantlarında yeni bir metasurface tasarımı sunulmaktadır. Metasurface, 1.575 mm kalınlığında Roger 5880 alttas malzeme üzerine tasarlanmıştır. Tasarlanan metayüzeyin üst kısmı iki adet capraz ayna goruntulu m-şekilli birim hücreden oluşmaktadır. Arka plan düzlemi metayüzeyin tamamını kaplar. Sayısal sonuçlar, metasurface'in hem doğrusal (12,48-13,62 GHz, 19,00-27,64 GHz, 39,45-41,72 GHz, 44,68-45,18 GHz ve 47,52-48,28 GHz) hem de dairesel (11,5-12,07 GHz, 30,01-37,77 GHz, 42,3) kapasitesini göstermektedir. -44,2 GHz, 45,45-47,1 GHz, 48,7-49,54 GHz) %90'ın üzerinde verimlilikle polarizasyon dönüşümü. Aynı zamanda metayüzey 45^0'a kadar iyi bir açısal stabiliteye sahiptir.

Keywords

Metasurface, Unit cell, Polarization, Conversion, Reflection

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