Application of Scale Changing Technique - grid computing to the electromagnetic simulation of reflectarrays

Khalil, Fadi; Rashid, Aamir; Aubert, Hervé; Coccetti, Fabio; Plana, R.; Barrios-Hernandez, Carlos Jaime; Denneulin, Yves

doi:10.1109/aps.2009.5171537

Cited by 3 publications

(2 citation statements)

References 3 publications

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“…The different sub-domains are cascaded through scale changing networks, representing the electromagnetic coupling between adjacent scale levels. Such a method has been applied to the design of frequency selective surface (FSS) or reflectarrays [14]. Another approach based on a decomposition of the computation domain related to the electromagnetic fields is also presented in [15].…”

Section: Summary Of Modelingmentioning

confidence: 99%

Synthesis of Antenna Arrays and Parasitic Antenna Arrays with Mutual Couplings

Thévenot

Menudier

Ahmad

et al. 2012

International Journal of Antennas and Propagation

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A synthesis method to design multielement antennas with couplings is presented. The main objective is to perform a rigorous determination of the electromagnetic characteristics involved in the design, especially with arrays of moderate sizes. The aim is to conceive jointly and efficiently the antenna and the circuits to connect (feed distribution network, power amplifiers, reactive loads, etc.). The subsequent objective is to improve the understanding and capabilities of strongly coupled antennas. As a whole, the synthesis procedure is then applied to different antenna architectures in order to show its efficiency and versatility. A focus on some antenna concepts where the management of couplings is a key factor to improve the performances is presented. After describing the synthesis procedure, the first category of coupled multielement antenna studied concerns radiating arrays in linear or circular polarization. A design including couplings effects on an active array is also presented. Then, the method is applied to parasitic antenna arrays and a specific investigation on reflectarray antenna is performed as they can be considered as a particular case of parasitic arrays.

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Section: Summary Of Modelingmentioning

confidence: 99%

Synthesis of Antenna Arrays and Parasitic Antenna Arrays with Mutual Couplings

Thévenot

Menudier

Ahmad

et al. 2012

International Journal of Antennas and Propagation

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“…The modular approaches consist in individually characterizing one or a few cells of the antenna array to deduce the total radiation of the array. Several modular approaches have been proposed for modeling the elementary cell, namely the isolated cell approach, the surrounded cell approach and the Scale Changing Technique (SCT) method [6]. The isolated cell approach neglects the mutual couplings between the lattice elements; hence, it does not seem to be an interesting approach for the study of large periodic lattices behavior.…”

Section: Introductionmentioning

confidence: 99%

Electromagnetic Analysis of Periodic Iris-Fed Patch Antenna Array Using Fast and Efficient Hybrid Analytical Approach

Abdi,

Aguili

2022

JTEC

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Planar antenna arrays are renowned for their high directivity and ease of implementation, while offering the possibility of controlling the radiation pattern. However, the study of the electromagnetic aspect taking into account the coupling between the array’s elements requires a memory space and a considerable calculation time. To overcome these drawbacks, a fast and rigorous full-wave numerical method for the electromagnetic analysis of a unidimensional periodic iris-fed patch antenna array has been proposed. The spatial electromagnetic calculation of a periodic structure of finite dimensions is reduced to a spectral calculation carried out on a single unit reference cell by applying periodicity conditions to it. The modeling of a unit cell is based on the MOM-GEC flexible formalism, which reduces the resolution of the electromagnetic problem to a simple manipulation of equivalent circuits. Firstly, a validation of the numerical approach took place through the verification of the boundary conditions applied to the current distribution. Next, the mutual coupling between the elements of the antenna array was calculated. Results were validated with those obtained with HFSS commercial software and they yield accurate and efficient solutions. Furthermore, a significant reduction of both memory storage requirement and computational time was observed.

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Multi-scale approach for the electromagnetic modeling of metallic FSS grids of finite thickness with non-uniform cells

Tchikaya

Rashid

Khalil

et al. 2009

2009 Asia Pacific Microwave Conference

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The scattering analysis from metallic Grid FSS consisting of rectangular perforations on a thick metallic screen illuminated by an oblique incident plane wave is presented. The grid structure is analyzed using Scale Changing Technique (SCT) which is based on the partition of the grid-plane into planar sub-domains defined at various scale-levels. Electromagnetic interaction between subsequent scales is modeled by mutually independent Scale-Changing Networks and finally the complete structure is simply represented by a cascade of these networks. Very good agreement is obtained between simulation results from SCT and the Finite Element Method (FEM) when computing the reflection/transmission coefficients and electromagnetic field backscattered by thick and finite size frequency selective surfaces. The computation time is significantly reduced when using SCT-based software compared with the FEM simulation tool.

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Application of Scale Changing Technique - grid computing to the electromagnetic simulation of reflectarrays

Cited by 3 publications

References 3 publications

Synthesis of Antenna Arrays and Parasitic Antenna Arrays with Mutual Couplings

Synthesis of Antenna Arrays and Parasitic Antenna Arrays with Mutual Couplings

Electromagnetic Analysis of Periodic Iris-Fed Patch Antenna Array Using Fast and Efficient Hybrid Analytical Approach

Multi-scale approach for the electromagnetic modeling of metallic FSS grids of finite thickness with non-uniform cells

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