Improvement of the PO-MoM hybrid method by accounting for effects of perfectly conducting wedges

Jakobus, U.; Landstorfer, F.M.

doi:10.1109/8.467649

Cited by 75 publications

(29 citation statements)

References 10 publications

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“…As a powerful high-low frequency hybrid technique, MoM-PO hybrid method has been proposed and improved to solve many complex electromagnetic problems [11][12][13][14][15][16][17][18]. However, this hybrid technique is mostly used to deal with the scattering and radiation problem in free-space and few publications discuss the application of MoM-PO method for half-space problem.…”

Section: Introductionmentioning

confidence: 99%

Model the Electromagnetic Scattering From Three-Dimensional Pec Object Buried Under Rough Ground by Mom and Modified Po Hybrid Method

Chen¹,

Zhu²

2007

PIER

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Abstract-In this paper, method of moment and modified physical optical hybrid method is used to analyze the scattering from 3-D PEC object buried under rough surface. The random rough ground surface is characterized with Gaussian statistics for surface height and for surface correlation function. The air-earth interface and the object are all replaced by the corresponding equivalent currents and the equivalent current on the ground surface is divided into two parts: the current caused by the incident wave which is named as incident current, and the current caused by buried object which is named as scattered current. The incident currents are obtained by PO approximation and the scattered currents are related to the current on the buried scatter by a modified PO method in this work. Only the current of scatter is considered as unknown and will be solved by MoM. After obtaining the current of scatter, the scattered current on the ground surface is calculated by the modified PO approximation. And the scatter field will be calculated by using the scattered current. In order to validate the hybrid method proposed in this paper, several numerical examples are given and compared with the results of MoM.

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Section: Introductionmentioning

confidence: 99%

Model the Electromagnetic Scattering From Three-Dimensional Pec Object Buried Under Rough Ground by Mom and Modified Po Hybrid Method

Chen¹,

Zhu²

2007

PIER

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“…The details of this technique and examples can be seen in [5][6][7]. Furthermore, Jakobus and Landstorfer [8,9] suggested an improved PO-MM hybrid formulation for solution of scattering from three-dimensional perfectly conducting bodies of arbitrary shape. Another variation of the first category is the techniques that combines the high-frequency method with the finite element method or finite difference in time domain.…”

Section: Introductionmentioning

confidence: 99%

Scattering from Perfectly Conducting Strips by Utilizing an Adaptive Multiscale Moment Method

Su¹,

Sarkar²

1998

PIER

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“…Then, similar MoM-PO approaches can be seen in [4]. The further improvements were presented in [5][6][7]. These methods all used lower-order current approximation [13], in which the model is discretized with small elements.…”

Section: Introductionmentioning

confidence: 99%

Hybrid Method of Higher-Order Mom and Nystrãm Disretization Po for 3d Pec Problems

Lai¹,

Wang²,

Yuan³

et al. 2010

PIER

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Abstract-This paper presents an efficient and accurate hybrid approach of method of moments (MoM) and physical optics (PO) for radiation problems such as antennas mounted on a large platform. The new method employs higher-order hierarchical Legendre basis functions in the MoM region and higher-order Nyström scheme in the PO region. The two regions are both discretized with large domains. The unknowns can be much less than those in the small-domain MoM-PO solutions, which will lead to a great reduction in computation complexity. Furthermore, with the Nyström scheme in the PO region, the higher-order accuracy is maintained, and the calculation of the impedances can be more efficient than that in the existing higherorder MoM-PO procedure. Numerical results show the validity of the proposed method.

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Improvement of the PO-MoM hybrid method by accounting for effects of perfectly conducting wedges

Cited by 75 publications

References 10 publications

Model the Electromagnetic Scattering From Three-Dimensional Pec Object Buried Under Rough Ground by Mom and Modified Po Hybrid Method

Model the Electromagnetic Scattering From Three-Dimensional Pec Object Buried Under Rough Ground by Mom and Modified Po Hybrid Method

Scattering from Perfectly Conducting Strips by Utilizing an Adaptive Multiscale Moment Method

Hybrid Method of Higher-Order Mom and Nystrãm Disretization Po for 3d Pec Problems

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Improvement of the PO-MoM hybrid method by accounting for effects of perfectly conducting wedges

Cited by 75 publications

References 10 publications

Model the Electromagnetic Scattering From Three-Dimensional Pec Object Buried Under Rough Ground by Mom and Modified Po Hybrid Method

Model the Electromagnetic Scattering From Three-Dimensional Pec Object Buried Under Rough Ground by Mom and Modified Po Hybrid Method

Scattering from Perfectly Conducting Strips by Utilizing an Adaptive Multiscale Moment Method

Hybrid Method of Higher-Order Mom and Nystrãm Disretization Po for 3d Pec Problems

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Hybrid Method of Higher-Order Mom and Nystrãm Disretization Po for 3d Pec Problems