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Analysis, rigorous design and characterization of a three-layer anisotropic transmitarray at 300 GHz

Abstract : A novel approach for studying and designing lowcost anisotropic transmitarrays at sub-THz frequencies is presented here. The array comprises three metal layers and two interleaved dielectric spacers. A four-port equivalent circuit model is derived to accurately model the anisotropic behavior of the unit-cell. The analysis proves theoretically that nearly perfect transmission and complete phase control can be achieved at the same time. A systematic procedure optimizing the admittance tensor of the inner layer is described for the unit-cell design. A 3-bit transmitarray antenna at 300 GHz is fabricated using a standard printed circuit board process. The measured results demonstrate that the design methodology is effective even under strict technological constraints. The antenna achieves a peak gain of 32.2 dBi with 36.5% aperture efficiency and 70.4 GHz of 3-dB bandwidth.
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https://hal-cea.archives-ouvertes.fr/cea-03637103
Contributor : Antonio Clemente Connect in order to contact the contributor
Submitted on : Monday, April 11, 2022 - 1:46:29 PM
Last modification on : Wednesday, May 4, 2022 - 3:07:40 AM
Long-term archiving on: : Tuesday, July 12, 2022 - 6:32:33 PM

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Orestis Koutsos, Francesco Manzillo, Antonio Clemente, Ronan Sauleau. Analysis, rigorous design and characterization of a three-layer anisotropic transmitarray at 300 GHz. IEEE Transactions on Antennas and Propagation, inPress, ⟨10.1109/TAP.2022.3145506⟩. ⟨cea-03637103⟩

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