Fast MM-PO-based numerical modelling technique for wideband analysis of antennas near conducting objects

Karwowski, A.; Нога, А.

doi:10.1049/el:20070557

Cited by 7 publications

(3 citation statements)

References 5 publications

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“…One of the solutions to this problem is to combine two or more methods in one program code. In this case, one of the methods is often MoM [34][35][36][37][38][39][40][41]. Each method is applied to the task field for which it is best suited.…”

Section: Methodsmentioning

confidence: 99%

On Wire-Grid Representation for Modeling Symmetrical Antenna Elements

et al. 2022

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This paper focuses on the combination of the method of moments and the wire-grid approximation as an effective computational technique for modeling symmetrical antennas with low computational cost and accurate results. The criteria and conditions for the use of wire-grid surface approximation from various sources are presented together with new recommendations for modeling symmetrical antenna structures using the wire-grid approximation. These recommendations are used to calculate the characteristics of biconical and horn antennas at different frequencies. The results obtained using different grid and mesh settings are compared to those obtained analytically. Moreover, the results are compared to those obtained using the finite difference time domain numerical method, as well as the measured ones. All results are shown to be in a good agreement. The recommendations used for building a symmetrical wire-grid of those symmetrical antenna elements provided the most advantageous parameters of the grid and mesh settings and the wire radius, which are able to give quite accurate results with low computational cost. Additionally, the known equal area rule was modified for a rectangular grid form. The obtained radiation patterns of a conductive plate using both the original rule and the modified one are compared with the electrodynamic analysis results. It is shown that the use of the modified rule is more accurate when using a rectangle grid form.

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Section: Methodsmentioning

confidence: 99%

On Wire-Grid Representation for Modeling Symmetrical Antenna Elements

et al. 2022

View full text Add to dashboard Cite

show abstract

“…One of the solutions to this problem is to combine two or more methods in one program code. In this case, one of the methods is often MoM [32][33][34][35][36][37][38][39]. Each method is applied to the task field for which it is best suited.…”

Section: Methodsmentioning

confidence: 99%

On Wire-Grid Representation for Modeling Symmetrical Antenna Elements

Hasan¹,

Klyukin²,

Kvasnikov³

et al. 2022

Preprint

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This paper focuses on the combination of the method of moments and the wire-grid approximation as an effective computational technique for modeling symmetrical antennas with low computational cost and quite accurate results. The criteria and conditions for the use of wire-grid surface approximation from various sources are presented together with new recommendations for modeling symmetrical antenna structures using the wire-grid approximation. These recommendations are used to calculate the characteristics of biconical and horn antennas at different frequencies. The results obtained using different grid and mesh settings are compared to those obtained analytically. Moreover, the results are compared to those obtained using the finite difference time domain numerical method, as well as the measured ones. All results are shown to be in a good agreement. The used recommendations for building a symmetrical wire-grid of those symmetrical antenna elements provided the most advantageous parameters of the grid and mesh settings and the wire radius, which are able to give a quite accurate results with low computational cost. Additionally, the known equal area rule was modified for a rectangular grid form. The obtained radiation patterns of a conductive plate using both the original rule and the modified one are compared with the electrodynamic analysis results. It is shown that the use of the modified rule is more accurate when using a rectangle grid form.

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“…In this paper, we present in detail an efficient computational electromagnetics technique for wide-band analysis of antennas on large platforms recently announced in [17]. The key steps of the technique can be summarized as follows.…”

Section: Introductionmentioning

confidence: 99%

Wide-Band Hybrid MM-PO Computational Electromagnetics Technique Using [Z] Matrix Interpolation and Adaptive Frequency Sampling

Нога

Karwowski

2007

2007 IEEE International Symposium on Electromagnetic Compatibility

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In this paper, we present a highly efficient computational electromagnetics technique for wide-band analysis of antennas radiating in the presence of electrically large conducting bodies (platforms). The technique is based upon the well known Moment Method-Physical Optics (MM-PO) hybrid formulation combined with the impedance matrix interpolation and a dynamic adaptive frequency sampling of the desired observable. Numerical examples are given to demonstrate considerable saving in both computer memory and CPU time offered by the proposed approach.

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Fast MM-PO-based numerical modelling technique for wideband analysis of antennas near conducting objects

Cited by 7 publications

References 5 publications

On Wire-Grid Representation for Modeling Symmetrical Antenna Elements

On Wire-Grid Representation for Modeling Symmetrical Antenna Elements

On Wire-Grid Representation for Modeling Symmetrical Antenna Elements

Wide-Band Hybrid MM-PO Computational Electromagnetics Technique Using [Z] Matrix Interpolation and Adaptive Frequency Sampling

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