Inverse Approach for the Design of 1-D Sparse-Array Metasurface Antennas
(2026) Proc. 20th Eur. Conf. Antennas Propag — Location: Dublin, Ireland (19.April.2026)
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- Abstract
- This paper addresses the design of 1-D sparse-array metasurface (MTS) antennas based on the solution of the electric field integral equation (EFIE). Sparse-array MTSs are regular antenna arrays in which each array cell corresponds to a modulated MTS, with a cell size larger than half wavelength. The overall structure can be described as a periodic modulated surface impedance with periodicity corresponding to the array cell size. In this paper, the planar MTS is modulated along one direction and is invariant along the other direction. The structure infinitely extends along both directions. Given the imposed periodicity, and assuming linear phase shift excitation along the array, the analysis and the design can be restricted to that of a single cell. Harmonic basis functions are proposed for the current and impedance expansion. An inverse solution of the EFIE is formulated to derive the surface impedance from a desired flat-top embedded element pattern (EEP). Index Terms-Metasurface, antenna arrays, method of moments , inverse problem, surface impedance, flat-top pattern (EEP).
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Citations
Dessy, J., Bodehou, M., & Craeye, C. (2026, April). Inverse Approach for the Design of 1-D Sparse-Array Metasurface Antennas. Proc. 20th Eur. Conf. Antennas Propag, Dublin, Ireland. https://hdl.handle.net/2078.5/278359