Fields, Networks, Computational Methods, and Systems in by Wolfgang J. R. Hoefer (auth.), Professor Dr. Peter Russer,

By Wolfgang J. R. Hoefer (auth.), Professor Dr. Peter Russer, Professor Mauro Mongiardo (eds.)

On June 1St 2004 the school of electric Engineering and knowledge expertise of the Technische Universitat Miinchen bestowed the measure of the medical professional honoris causa to Leopold B. Felsen, for notable achievements within the idea of electromag­ netic fields. in this party on June 1St and 2d 2004 on the Technische Universitat Miinchen a symposium on "Fields, Networks, Computational equipment, and platforms: a latest View of Engineering Electrodynamics" in honor of Leopold B. Felsen was once prepared. The symposium subject excited by an immense region of Leopold Felsen examine pursuits and, because the identify emphasizes, on a latest view of utilized Electro­ dynamics. whereas the elemental actual legislation of electrodynamics are renowned, study during this box is experiencing a gentle non-stop progress. the matter -solving methods of, say, 20 years in the past could seem now quite out of date seeing that enormous development has been made meanwhile. during this monograph we acquire samples of state-of-the-art cutting-edge in facing electromagnetic fields, their community idea illustration, their computation and, ultimately, on process functions. The community formula of box difficulties can enhance the matter formula and likewise give a contribution to the answer method. community conception systematic methods for circuit research are according to the separation of the circuit into the relationship circuit and the circuit components. Many functions in technology and expertise depend on computations of the electromagnetic box in both synthetic or natural advanced structures.

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412-415. 8. A. A. Oliner, "A periodic-structure negative-refractive-index medium without resonant elements;' in USNClURSI Nat. 41. 9. S. Ramo, J. R. Whinnery, and T. , pp. 263-264, New York: Wiley, 1994. 10. J. R. Whinnery and S. Ramo, "A New Approach to the Solution of High Frequency Field Problems'; Proc. I. , Vol. 32, pp 284-288, May 1944. 11. J. R. Whinnery, C. Concordia, W Ridgway, and G. Kron, "Network Analyzer Studies of Electromagnetic Cavity Resonators'; Proc. I. , Vol. 32, pp 360-367, Jun 1944.

5, Apr. 2005 (in press). Representation of the Field Excited by a Line Source near a 2D Periodic Artificial Material F. , D. R. Jackson 2 , D. R. Wilton 2 , and 1. B. Felsen 3 1 2 3 Dept. of Information Engineering, University of Siena, Italy. it Dept. ECE, University of Houston, USA. edu Dept. of Aerospace and Mech. Eng. (part time), Boston University, USA. Also, Prof. Emeritus, Polytechnic University, USA. edu 1 Introduction Research on electromagnetic band gap (EBG) and periodic artificial materials (PAM) has been increasingly applied to antenna and microwave devices.

Amplitude of the imaginary part of the SW wave-vector component perpendicular to the ¢ = 0 face of a wedge illuminated by a plane wave, 1Im{ ky/k} I. Several curves are shown as a function of the surface impedance value along the direction parallel to the edge and for different values of the skewness incidence angle {3' (see geometry in Fig. 1). Normalized surface impedance tensor: ~ = j'1ZZ + j3 xx. The expressions in (12) exactly coincide with those provided in [6]. Indeed, in [6] a rigorous spectral solution has been derived for the scattering at the edge of a right-angled impedance wedge whose ¢ = 0 face is characterized by an anisotropic impedance tensor with its principal anisotropy axes parallel and perpendicular to the edge, and exhibiting arbitrary impedance values along the above directions.

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