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Conference Papers Year : 2023

Wideband transmitarrays based on anisotropic unit-cells for next generation sub-THz applications

Abstract

This paper presents an anisotropic transmitarray for next-generation applications in the 300-GHz band. First, the proposed three-layer unit-cell is analyzed theoretically to demonstrate its effectiveness in transmission and bandwidth operation. Then, two designs using different manufacturing technologies are synthesized. The first one is based on a standard printed circuit board process to represent a low-cost solution. The second one uses lithography in fused quartz, leveraging a higher fabrication and transmission phase resolutions for more efficient transmitarray design. Based on the two structures, two 40×40-element prototypes are realized considering these two fabrication streams. The low-cost prototype is measured, achieving a peak gain of 32.2 dBi with 31.8% aperture efficiency and a 3-dB gain bandwidth of 55 GHz (19%).
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Dates and versions

cea-04006379 , version 1 (27-02-2023)

Identifiers

  • HAL Id : cea-04006379 , version 1

Cite

Orestis Koutsos, Francesco Foglia Manzillo, Antonio Clemente, Ronan Sauleau. Wideband transmitarrays based on anisotropic unit-cells for next generation sub-THz applications. EuCAP 2023 - 17th European Conference on Antennas and Propagation, Mar 2023, Florence, Italy. ⟨cea-04006379⟩
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