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Electromagnetic Fields in Stratified Media

:	Kai Li
:	Electromagnetic Fields in Stratified Media
:	Springer-Verlag
:	9783540959649
:	Advanced Topics in Science and Technology in China
:	1
:	CHF 107.30
:

:	Elektronik, Elektrotechnik, Nachrichtentechnik
:	English

:	224
:	DRM
:	PC/MAC/eReader/Tablet
:	PDF

'Electromagnetic Fields in Stratified Media' deals with an important branch of electromagnetic theory, which has many useful applications in subsurface communication, radar, and geophysical prospecting and diagnostics. The book introduces to the electromagnetic theory and wave propagation in complex media, while presenting detailed models for various media: 3, 4, N-layered media, boundary conditions, and anisotropic media. In particular, the complete solutions for a trapped surface wave and lateral wave in a three- or four-layered region, the complete solutions for low frequency wave propagation over a spherical surface coated with a dielectric layer, and the transient field of a horizontal dipole in the boundary layer of two different media are presented. The book is designed for the scientists and engineers engaged in antennas and propagation, EM theory and applications.

Dr. Kai Li is Professor at Zhejiang University.

	Preface	6
	Contents	8
	1 Historical and Technical Overview of Electromagnetic Fields in Stratified Media	11
	1.1 Electromagnetic Wave Along Air-Earth Boundary	11
	1.2 Surface Waves Along Surfaces of Stratified Media	13
	1.3 Lateral Waves Along the Air-Earth Boundary	16
	1.4 Trapped Surface Wave in the Presence of Three- Layered Region	16
	1.5 Electromagnetic Field Radiated by a Dipole over Spherical Earth	18
	References	19
	2 Electromagnetic Field of a Vertical Electric Dipole in the Presence of a Three- Layered Region	25
	2.1 Introduction	25
	2.2 The Integrated Formulas for Electromagnetic Field in Air	26
	2.3 Field of Vertical Dipole over Dielectric-Coated Perfect Conductor	30
	2.3.1 Integrated Formulas of the Electromagnetic Field in Air	30
	2.3.2 Evaluations of Trapped Surface Wave and Lateral Wave	31
	2.3.3 Final Formulas for the Electromagnetic Field Components	37
	2.3.4 Computations and Discussions	38
	2.4 Field of Vertical Dipole over Dielectric-Coated Imperfect Conductor	42
	2.4.1 Statements of the Problem	42
	2.4.2 The Trapped Surface Wave	43
	2.4.3 Lateral Wave	45
	2.4.4 Final Formulas for the Electromagnetic Field Components	47
	2.4.5 Computations and Discussions	48
	2.5 Radiation from Vertical Dipole in Three-Layered Region	52
	2.5.1 Field of Vertical Dipole in Three-Layered Region	52
	2.5.2 Graphical Representations of the Far Field	56
	References	63
	3 Electromagnetic Field of a Horizontal Electric Dipole in the Presence of a Three- Layered Region	65
	3.1 Introduction	65
	3.2 Electromagnetic Field of Horizontal Electric Dipole	66
	3.2.1 Integrated Formulas for Electromagnetic Field in Air	66
	3.2.2 Evaluation for the Electric-Type Field	69
	3.2.3 Evaluation for the Magnetic-Type Field	72
	3.2.4 New Techniques for Determining the Poles .E and .B	75
	3.2.5 Final Formulas for Six Field Components	78
	3.2.6 Computations and Conclusions	79
	3.3 Radiation of Horizontal Electric Dipole and Microstrip Antenna	83
	3.3.1 Radiation of a Horizontal Electric Dipole	83
	3.3.2 Microstrip Antenna	87
	3.3.3 Computations and Discussions	89
	3.4 Summary	94
	References	94
	4 Electromagnetic Field of a Vertical Electric Dipole in the Presence of a Four- Layered Region	97
	4.1 Introduction	97
	4.2 Formulation of Problem	98
	4.3 Evaluations of the Trapped Surface Wave and Lateral Wave	100
	4.4 Computations and Conclusions	106
	References	109
	5 Electromagnetic Field of a Horizontal Electric Dipole in the Presence of a Four- Layered Region	112
	5.1 Integrated Formulas for the Electromagnetic Field	112
	5.2 Evaluation for the Electric-Type Field	117
	5.3 Evaluation for the Magnetic-Type Field	122
	5.4 Final Formulas for the Six-Field Components	126
	5.5 Computations and Conclusions	127
	References	130
	6 Electromagnetic Field Radiated by a Dipole Source over a Dielectric- Coated Spherical Earth	132
	6.1 Introduction	132
	6.2 Electromagnetic Field due to Vertical Electric Dipole	133
	6.2.1 Formulations of the Problem	133
	6.2.2 Determination of the Coefficient	137
	6.2.3 Final Formulas of the Electromagnetic Field	140
	6.2.4 Computations for Parameters	140
	6.2.5 Analysis and Computations	145
	6.3 Electromagnetic Field due to Vertical Magnetic Dipole	146
	6.4 Electromagnetic Field due to Horizontal Electric Dipole	149
	6.5 Summary	153
	References	153
	7 Electromagnetic Field of a Dipole Source over the Spherical Surface of Multi- Layered Earth	155
	7.1 Introduction	155
	7.2 Electromagnetic Field due to Vertical Electric Dipole	157
	7.3 Electromagnetic Field due to Vertical Magnetic Dipole	161
	7.4 Electromagnetic Field due to Horizontal Electric Dipole	163
	7.5 Computations and Conclusions	165
	References	170
	8 Exact Transient Field of a Horizontal Electric Dipole on the Boundary Between Two Dielectrics	172
	8.1 Introduction	172
	8.2 Exact Transient Field with Delta Function Excitation	173
	8.2.1 Formal Representations of Time-independent Field due to Horizontal Electric Dipole	173
	8.2.2 Time-Dependent Component E2.	176
	8.2.3 Time-Dependent Component E2f	192
	8.2.4 Time-Dependent Component B2z	197
	8.2.5 Discussions and Conclusions	200
	8.3 Exact Transient Field with Gaussian Excitation	200
	8.3.1 Exact Formulas for the Transient Field of Horizontal Dipole Excited by a Gaussian Pulse on the Boundary Between Two Dielectrics	200
	8.3.2 Computations and Conclusions	204
	References	206
	9 Approximate Transient Field of Horizontal Electric Dipole on the Boundary Between a Homogeneous Isotropic Medium and One- Dimensionally Anisotropic Medium	209
	9.1 Statements of Problem	209
	9.2 The Approximate Transient Field with Delta Function Excitation	210
	9.3 Approximate Formulas for the Transient Field with Gaussian Excitation	218
	References	225
	Index	227