Near-field shaped transmitarray antennas: synthesis and impact of phase quantization
Publication date:
Publisher version:
Abstract:
In this work, a procedure based on the Intersection Approach, is proposed to synthesize the near-field pattern of transmitarray antennas. First, the model for the computation of the amplitude and phase of the electric field in the near-field region is described and validated by comparison with full-wave simulations. Next, the proposed phase-only synthesis algorithm is detailed. Using fast Fourier transforms, it iteratively seeks for a feasible aperture phase profile that can fit near-field pattern constraints. The procedure is applied to synthesize a transmitarray generating a near-field shaped pattern on a plane parallel to the aperture. The impact of a uniform phase quantization on the near-field pattern and amplitude is analysed to provide design guidelines.
In this work, a procedure based on the Intersection Approach, is proposed to synthesize the near-field pattern of transmitarray antennas. First, the model for the computation of the amplitude and phase of the electric field in the near-field region is described and validated by comparison with full-wave simulations. Next, the proposed phase-only synthesis algorithm is detailed. Using fast Fourier transforms, it iteratively seeks for a feasible aperture phase profile that can fit near-field pattern constraints. The procedure is applied to synthesize a transmitarray generating a near-field shaped pattern on a plane parallel to the aperture. The impact of a uniform phase quantization on the near-field pattern and amplitude is analysed to provide design guidelines.
Description:
European Conference on Antennas and Propagation (EuCAP) (17th. 2023. Florence)
ISBN:
Patrocinado por:
This work was supported in part by MICIN/AEI/10.13039/501100011033 within the project PID2020-114172RB-C21; and by the Gobierno del Principado de Asturias under project AYUD/2021/51706.
Collections
Files in this item
