Investigation of Electromagnetic Complex Scattering for Conductor Target Based on Electromagnetic Images Method

Li, Yingle; Huang, Jingjing; Wang, Mingjun

doi:10.2528/pier08012402

Cited by 7 publications

(5 citation statements)

References 20 publications

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“…As a result, a defect waveguide should be replaced with a new one [12][13][14][15][16]. This also includes classical open waveguides [17][18][19][20][21]. The possibility of supporting one-way states by a closed waveguide has not been widely investigated so far.…”

Section: Introductionmentioning

confidence: 99%

Super ultra-wideband closed waveguide supporting one-way states

Ahmadi¹,

Zafari²,

Pasdari-Kia³

et al. 2023

Preprint

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<p>In this work, we propose a pseudospin-polarized closed waveguide whose walls are formed by dual electromagnetic boundary conditions. The structure has a very wide bandwidth so that it covers an extremely wide electromagnetic spectrum. The proposed waveguide supports one-way pseudospin states resulting from the establishment of dual relationships at the waveguide boundaries, and hence the establishment of mirror reflection symmetry. This provides the proposed waveguide with the ability to suppress backscattering. The boundary conditions of the proposed structure consist of complementary metasurfaces which have dual surface impedances. The presence of these boundary conditions leads to forming a pseudospin-polarized waveguide having the ability to suppress and filter the backward modes that may be excited along bent paths or discontinuities. To the best of our knowledge, this is the widest bandwidth waveguide that has been proposed so far, so that the isolation of the waveguide in the frequency range of 7- 350 GHz is above -0.5 dB. In addition, we use a very precise method based on the variational method to calculate the surface impedance of the metasurfaces forming the waveguide boundaries so as to increase the accuracy of the obtained results.</p>

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Section: Introductionmentioning

confidence: 99%

Super ultra-wideband closed waveguide supporting one-way states

Ahmadi¹,

Zafari²,

Pasdari-Kia³

et al. 2023

Preprint

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show abstract

“…The GICM substitutes the surface charge density of the tip by a set of N charge elements inside the tip. The dielectric sample is included by the Image Charge theory [13,14]. Although the current version of the algorithm is used for isotropic samples, it can be easily generalized for anisotropic ones using the formalism developed by J. J. Hänninen et al [15].…”

Section: Introductionmentioning

confidence: 99%

Generalized Image Charge Method to Calculate Electrostatic Magnitudes at the Nanoscale Powered by Artificial Neural Networks

Sacha

Rodríguez

Serrano

et al. 2010

Journal of Electromagnetic Waves and Applications

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A technique to calculate electrostatic magnitudes such as force and potential in Electrostatic Force Microscopy setups is presented. This technique combines Artificial Neural Networks and the Generalized Image Charge Method to overcome one of the main problems of traditional numerical simulations: the need of many parameters that are difficult to estimate and depend on the geometry of the experimental setup. Using Artificial Neural Networks, our technique is able to estimate the internal parameters of the algorithm and automatically obtain the electric magnitudes with a very high accuracy. This technique has been implemented in the freely distributed software winGICM. The automatic configuration of the software by an Artificial Neural Network allows the users to handle it without being specifically trained in the theoretical background underlying the algorithms.

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“…The study of electromagnetic scattering from discrete particles has been the subject of intensive investigation over the past several decades for its important application in the understanding of remotely sensed data [1][2][3][4][5][6][7]. Because of the simplicity of the geometry and the interest in practical applications, scattering of plane wave or Gaussian beam by isolated particles, such as spheres and cylinders, has been well studied both theoretically and experimentally [8][9][10][11][12][13][14][15].…”

Section: Introductionmentioning

confidence: 99%

Investigation on the Electromagnetic Scattering of Plane Wave/Gaussian Beam by Adjacent Multi-Particles

Guo¹,

Wang²,

Wang³

et al. 2009

PIER B

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Abstract-Based on the equivalence principle and the reciprocity theorem, the multiple scattering up to N th-order by adjacent multiparticles is considered in this study. It is well known that the first-order solution can easily be obtained by calculating the scattered field from isolated targets when illuminated by a plane wave/Gaussian beam. However, due to the difficulty in formulating the couple scattered field, it is very difficult to find an analytical solution for the higherorder of the scattered field with considering the multiple scattering even for multi-canonical geometries, such as spheres, spheroids, and cubes. In order to overcome this problem, in this present work, the higher-order solutions of electromagnetic scattering for multi-particles are derived by employing the technique based on the reciprocity theorem and the equivalence principle. In specific, using the formulas of the composite scattering field obtained in this work, the bi-static scattering of plane wave/Gaussian beam by adjacent multi-spheres

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Investigation of Electromagnetic Complex Scattering for Conductor Target Based on Electromagnetic Images Method

Cited by 7 publications

References 20 publications

Super ultra-wideband closed waveguide supporting one-way states

Super ultra-wideband closed waveguide supporting one-way states

Generalized Image Charge Method to Calculate Electrostatic Magnitudes at the Nanoscale Powered by Artificial Neural Networks

Investigation on the Electromagnetic Scattering of Plane Wave/Gaussian Beam by Adjacent Multi-Particles

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