Search search
Publication Date
to
Vol. 85
Latest Volume
All Volumes
PIERB 118 PIERB 117 PIERB 116 PIERB 115 PIERB 114 PIERB 113 PIERB 112 PIERB 111 PIERB 110 PIERB 109 PIERB 108 PIERB 107 PIERB 106 PIERB 105 PIERB 104 PIERB 103 PIERB 102 PIERB 101 PIERB 100 PIERB 99 PIERB 98 PIERB 97 PIERB 96 PIERB 95 PIERB 94 PIERB 93 PIERB 92 PIERB 91 PIERB 90 PIERB 89 PIERB 88 PIERB 87 PIERB 86 PIERB 85 PIERB 84 PIERB 83 PIERB 82 PIERB 81 PIERB 80 PIERB 79 PIERB 78 PIERB 77 PIERB 76 PIERB 75 PIERB 74 PIERB 73 PIERB 72 PIERB 71 PIERB 70 PIERB 69 PIERB 68 PIERB 67 PIERB 66 PIERB 65 PIERB 64 PIERB 63 PIERB 62 PIERB 61 PIERB 60 PIERB 59 PIERB 58 PIERB 57 PIERB 56 PIERB 55 PIERB 54 PIERB 53 PIERB 52 PIERB 51 PIERB 50 PIERB 49 PIERB 48 PIERB 47 PIERB 46 PIERB 45 PIERB 44 PIERB 43 PIERB 42 PIERB 41 PIERB 40 PIERB 39 PIERB 38 PIERB 37 PIERB 36 PIERB 35 PIERB 34 PIERB 33 PIERB 32 PIERB 31 PIERB 30 PIERB 29 PIERB 28 PIERB 27 PIERB 26 PIERB 25 PIERB 24 PIERB 23 PIERB 22 PIERB 21 PIERB 20 PIERB 19 PIERB 18 PIERB 17 PIERB 16 PIERB 15 PIERB 14 PIERB 13 PIERB 12 PIERB 11 PIERB 10 PIERB 9 PIERB 8 PIERB 7 PIERB 6 PIERB 5 PIERB 4 PIERB 3 PIERB 2 PIERB 1
All Journals
PIER PIER B PIER C PIER M PIER Letters PIER Photonics
2019-07-22
Step-Like Structures in Electrostatic and Electrodynamic Implementation of Method of Moments: Some Unique Observations
By
Junbo Wang,

    Dr. Junbo Wang

    Department of Electrical and Computer Engineering

    University of California

    USA

    Homepage

Yahya Rahmat-Samii

    Professor Yahya Rahmat-Samii

    Department of Electrical Engineering

    UCLA

    USA

    Homepage

Progress In Electromagnetics Research B, Vol. 85, 27-48, 2019
doi:10.2528/PIERB19050409 | Google Scholar

Abstract
Step-like perfect electric conductor (PEC) structures are studied in both electrostatic and electrodynamic cases implementing Method of Moments. The canonical geometries included in these step-like structures such as edges, wedges and corners as well as the unique charge and current behaviors are characterized and discussed. Both 2D and 3D electrostatic problems are studied. In 2D electrostatic problem, a constant is introduced to the traditional 2D Green's function which effectively adjusts the zero potential reference embedded in the Green's function. This modification alleviates the contradiction between 2D and 3D definitions of electrostatic quantities and avoids unrealistic charge solutions obtained by Method of Moments. In 2D electrodynamic problem, the occasional appearance of singular surface current near the step's right angle bends is observed, discussed and then linked with the analytical solution of a canonical wedge scattering problem. Physical Optics approximation is also utilized as a comparison to Method of Moments in solving the 2D scattering problems.
Download Full Article (1311) View Full Article volume
Citation
Junbo Wang, and Yahya Rahmat-Samii, "Step-Like Structures in Electrostatic and Electrodynamic Implementation of Method of Moments: Some Unique Observations," Progress In Electromagnetics Research B, Vol. 85, 27-48, 2019.
doi:10.2528/PIERB19050409
References

1. Harrington, R. F., "Field Computation by Moment Methods," Wiley-IEEE Press, 28-30, 1993.
doi:10.1109/9780470544631

2. Ney, M. M., "Method of moments as applied to electromagnetic problems," IEEE Trans. Microw. Theory Tech., Vol. 33, No. 10, 972-980, Oct. 1985.
doi:10.1109/TMTT.1985.1133158        Google Scholar

3. Kolundzija, B., "Advances in EM modeling of complex and electrically large structures," Proceedings of Papers 5th European Conference on Circuits and Systems for Communications (ECCSC'10), 310-320, Belgrade, 2010.        Google Scholar

4. Wang, S., X. Guan, X. Ma, D. Wang, and S. Yi, "A fast method of moment to calculate monostatic RCS of arbitrary shaped conducting objects," 2006 CIE International Conference on Radar, 1-3, Shanghai, 2006.        Google Scholar

5. Hanninen, I. and K. Nikoskinen, "Implementation of method of moments for numerical analysis of corrugated surfaces with impedance boundary condition," IEEE Transactions on Antennas and Propagation, Vol. 56, No. 1, 278-281, Jan. 2008.
doi:10.1109/TAP.2007.913171        Google Scholar

6. Ufimtsev, P. Y., B. Khayatian, and Y. Rahmat Samii, "Singular edge behavior: To impose or not impose that is the question," Microw. Opt. Technol. Lett., Vol. 24, 218-223, 2000.
doi:10.1002/(SICI)1098-2760(20000220)24:4<218::AID-MOP3>3.0.CO;2-I        Google Scholar

7. Gong, Z., B. Xiao, G. Zhu, and H. Ke, "Improvements to the hybrid MoM-PO technique for scattering of plane wave by an infinite wedge," IEEE Transactions on Antennas and Propagation, Vol. 54, No. 1, 251-255, Jan. 2006.
doi:10.1109/TAP.2005.861511        Google Scholar

8. Jakobus, U. and F. M. Landstorfer, "Improvement of the PO-MoM hybrid method by accounting for effects of perfectly conducting wedges," IEEE Transactions on Antennas and Propagation, Vol. 43, No. 10, 1123-1129, Oct. 1995.
doi:10.1109/8.467649        Google Scholar

9. Harrington, R. F., "Losses on multiconductor transmission lines in multilayered dielectric media," IEEE Transactions on Microwave Theory and Techniques, Vol. 32, No. 7, 705-710, Jul. 1984.
doi:10.1109/TMTT.1984.1132757        Google Scholar

10. Bondeson, A., Computational Electromagnetics, 160-161, Springer-Verlag, 2005.

11. Smythe, W. R., Static and Dynamic Electricity, 26-100, Hemisphere Publishing, 1988.

12. Wang, J. J. H., Generalised Moment Methods in Electromagnetics, 173-176, Willey-Interscience, 1991.

13. Balanis, C., Advanced Engineering Electromagnetics, 2nd Ed., 644-706, J. Wiley & Sons, 2012.

14. Ufimtsev, P. Y., Fundamentals of the Physical Theory of Diffraction, John Wiley & Sons, 2014.
doi:10.1002/9781118753767

Download Full Article (1311) View Full Article volume


The EM Academy piers.org jpier.org Who's Who in EM
Copyright © 2022 The Electromagnetics Academy. All Rights Reserved.