Politechnika Wrocławska

 

Opis

Electromagnetic analysis, and especially computational electromagnetics, plays a fundamental role in contemporary electrical engineering. It proved to be very useful in solving a wide variety of practical problems emerging in advanced applications of modern communication systems. This monograph addresses key issues involved in the surface integral equation-method of moment (IE-MoM) formulation, which is suitable for very efficient and reliable analysis of radiation and scattering problems related to conducting and dielectric bodies, and in particular, multilayer microstrip passive circuits and antennas. The IE-MoM method proved also to be very efficient in the analysis of shielded microwave structures embedded in a planarly layered medium, and this particular application of the IE-MoM approach constitutes the core subject of this monograph. The content of the monograph is arranged so that the main stress is put on the ideas and not on the rigorous explanation of the theory involved in the IE-MoM formulation. The intention behind such an arrangement is to present the material in a way that allows the reader to understand easily all the ideas and principles of the applied electromagnetic theory and to encourage non-advanced readers to study computational electromagnetics. The monograph is also intended to serve as a reference material for those who will decide to pursue a detailed study in this field. Contents: Preface Abbreviations and acronyms Major notations Chapter 1 . Introduction 1.1. Computational methods for elecuomagnetics 1.2. Overview of the monograph References Chapter 2 . Fundamental issues involved in the electromagnetic analysis 2.1. Geometry of the structure under analysis 2.2. Formulation of a boundary value problem 2.3. Efficient modeling of physical phenomena 2.3.1. Modeling of losses 2.3.2. Modeling of thin planar conductors 2.3.3. Excitation and load modeling 2.4. An outline of the surface integral equation approach References Chapter 3 . The surface integral equation approach 3.1. Integral as an inverse operator 3.2. Integral representation of the EM fields 3.3. Formulation of surface integral equations 3.3.1. Integral equations for thin planar conductors 3.4. Selected issues concerning surface integral equations 3.4.1. Nonuniquencss of solutions 3.4.2. Singularity of integrals 3.4.3. Low frequency ill conditioning References Chapter 4 . Dyadic Green's functions for shielded planarly layered media 4.1. General introduction to dyadic Green's functions 4.2. Eigenfunction expansion of the fields and their sources in bounded regions 4.3. Eigenfunction expansion of dyadic Green's functions 4.3.1. Eigenfunction expansion of point sources 4.3.2. Green's functions for transverse sources 4.3.3. Green's functions for longitudinal sources 4.4. Symmetry properties of dyadic Green's functions References Chapter 5 . Solution of the surface integral equations 5.1. The method of moments 5.2. Evaluation of reaction integrals 5.2.1. Reaction integrals for horizontal current distributions 5.2.2. Reaction integrals for vertical current distributions 5.2.3. Reaction integrals for mixed current distribution 5.2.4. Numerical evaluation of the reaction integrals 5.3. Summation of modal series 5.3.1. Fast summation of modal series 5.4. Properties of the MoM matrix 5.5. Convergence issues and validation of results 5.6. Methods for increasing computational effectiveness of the IE-MoM approach References Chapter 6 . Applications - case study 6.1. The quality of cavity modeling 6.2. Planar transmission line structures 6.2.1. Bandpass tiller based on the parallel-coupled lines 6.2.2. Bandpass filter based on the broadside-coupled lines 6.3. Waveguide structures 6.3.1. Waveguide dual-mode bandpass filter 6.4. Cavity-backed radiating structures 6.4.1. Cavity-backed slot antenna (CBSA) 6.4.2. Cavity-backed dielectric resonator antenna (CBDRA) References Chapter 7. Conclusion

Dane techniczne

Autor	Słobodzian Piotr M.
Język	polski
Rok wydania	2007
Format	B5
Okładka	miękka
Ilość stron	206

Sklepy z Electromagnetic Analysis of Shielde Microwave Structures. The Surface Integral Equation Approach

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