By T.B.A. Senior, John L. Volakis
Non-metallic fabrics and composites at the moment are general in smooth automobile development, and the necessity to compute scattering and different electromagnetic phenomena within the presence of fabric buildings has resulted in the improvement of recent simulation concepts. This ebook describes numerous equipment for the approximate simulation of fabric surfaces, and gives the 1st accomplished remedy of boundary stipulations in electromagnetics. The genesis and houses of impedance, resistive sheet, conductive sheet, generalised (or larger order) and soaking up (or non-reflecting) boundary stipulations are mentioned. purposes to diffraction via various canonical geometries and impedance (coated) constructions are offered, and accuracy and distinctiveness matters also are addressed, excessive frequency ideas akin to the actual and geometrical theories of diffraction are brought, and extra than130 figures illustrate the implications, lots of that have now not seemed formerly within the literature. Written by means of of the gurus m the sector, this
graduate-level textual content could be of curiosity to all scientists and engineers fascinated about the analytical and numerical answer of electromagnetic difficulties
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Extra info for Approximate boundary conditions in electromagnetics
L. , 22, pp. 1261-1272. 46 First order conditions Senior, T. B. , Sarabandi, K. and Natzke, J. R. (1990), "Scattering by a narrow gap", IEEE Trans. Antennas PropagaL, AP-38, pp. 1102-1110. Senior, T. B. A. and Volakis, J. L. (1991), "Generalized impedance boundary conditions in scattering", Proc. IEEE, 79, pp. 1413-1420. Sommerfeld, A. , New York, pp. 63-64. Stratton, J. A. , New York, pp. 492-494, 564-565. -T. (1994), Dyadic Green's Functions in Electromagnetic Theory, IEEE Press, Piscataway NJ, pp.
87) as before. 86) are exact for all | AT |, but for any given |iV| » 1, their accuracy decreases with decreasing <£, and is lowest at grazing incidence (0 = 0). The behaviour is illustrated in Fig. 2-3 where, for a non-magnetic (fj. a <|>=75O ttvt ! (a) '' v \ <)>=30o ~ Figure 2-3: Percentage error in the reflection coefficient for real t and (x = /x0' (a) perpendicular polarisation; (b) parallel polarisation Accuracy 25 lossless dielectric, the percentage errors in the magnitudes of the reflection coefficients are plotted as functions of N for four different angles of incidence.
R. Mclsaac and M. S. Narasimhan and V. V. Rao (1974), IRE Trans. , MTT-22, pp. 972-973. Feinberg, E. (1944), "On the propagation of radio waves along an imperfect surface", J. Phys. USSR, 8, pp. 317-330. Feinberg, E. (1945), "On the propagation of radio waves along an imperfect surface", J. Phys. USSR, 9, pp. 1-6. Feinberg, E. (1946), "On the propagation of radio waves along an imperfect surface", J. Phys. USSR, 10, pp. 410-418. Fock, V. (1946), "The field of a plane wave near the surface of a conducting body", J.