Improved Spectral Iteration Technique for the Scattering by Thin Metal Plates

Costanzo, Sandra; Massa, G. Di

doi:10.2528/pierm08050603

Cited by 6 publications

(1 citation statement)

References 25 publications

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“…Due to the planar geometry of the reflector antennas, it is convenient to express the electromagnetic field in terms of plane wave superposition in the Fourier spectral domain [19], [20].…”

Section: Electromagnetic Field In the 2d Fourier Spectral Domainmentioning

confidence: 99%

An Electromagnetic Ping-Pong Algorithm forPlanar Reflector Antennas of Arbitrary Shapes

Liao¹,

Ou²

2021

Preprint

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An efficient Ping-Pong algorithm is presented to deal with electromagnetic scattering from planar reflector antennas of arbitrary geometric shapes. The proposed Computational Electromagnetics (CEM) algorithm does not require formation, storage and inverse of the impedance matrix used by the Method of Moments (MoM). Instead, a rigorous formula is obtained for computation of the surface current from the scattering electric field. Besides, the algorithm only contains convolution operations with the scalar Green’s function and second derivatives operations to iteratively update the surface currents and scattering electric field. Also, hypersingular integration arising from the singularities of the surface current and scattering electric field is properly regularized. Furthermore, the algorithm converges fast and satisfactory results are obtained after a few iterations. Besides, the first iteration gives the solution for reflector antennas on perfect absorption substrates. Numerical solutions are obtained for some typical antennas and comparisons are made to those in the literature and from the MoM.

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“…Due to the planar geometry of the reflector antennas, it is convenient to express the electromagnetic field in terms of plane wave superposition in the Fourier spectral domain [19], [20].…”

Section: Electromagnetic Field In the 2d Fourier Spectral Domainmentioning

confidence: 99%

An Electromagnetic Ping-Pong Algorithm forPlanar Reflector Antennas of Arbitrary Shapes

Liao¹,

Ou²

2021

Preprint

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A Ping-Pong Algorithm for Computational Electromagnetics of 2D Antennas/Metasurfaces

Liao

2020

2020 IEEE Asia-Pacific Microwave Conference (APMC)

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An efficient iterative Ping-Pong Computational Electromagnetics (CEM) algorithm has been developed to simulate the 2D planar reflector antennas and metasurfaces of arbitrary shapes. Without the storage and inverse of the impedance matrix required by the Method of Moments (MoM), the Ping-Pong algorithm updates the surface current and the scattering electric field iteratively. In particular, the first iteration gives the surface current for the reflector antennas or metasurfaces on the substrates of prefect absorption. Numerical simulation has been carried out for an ellipse reflector antenna and a cross-shaped metasurface. It has been shown that convergence occurs within 10 iterations and good agreement between the Ping-Pong algorithm and the MoM has been achieved.Index Terms-Computational Electromagnetics (CEM), Ping-Pong algorithm, Method of Moments (MoM), planar reflector antennas, metasurfaces.

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Proposed Development of Scattering Problem Solution based on Walsh Function

Sadkhan

2019

2019 4th Scientific International Conference Najaf (SICN)

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Improved Spectral Iteration Technique for the Scattering by Thin Metal Plates

Cited by 6 publications

References 25 publications

An Electromagnetic Ping-Pong Algorithm forPlanar Reflector Antennas of Arbitrary Shapes

An Electromagnetic Ping-Pong Algorithm forPlanar Reflector Antennas of Arbitrary Shapes

A Ping-Pong Algorithm for Computational Electromagnetics of 2D Antennas/Metasurfaces

Proposed Development of Scattering Problem Solution based on Walsh Function

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