From Classical Theory to HF Radiation Effects (Advances in Electrical Engineering and Electromagnetics)

## Content

- Preface
- ENTERTAINMENT ASSOCIATION
- Sources of telegraph and transmission line examples
- Comparison of transmission lines
- A cable from the ground works well
- Contribution of various components of the electromagnetic field
- Damage included
- Multiple line problem
- Comparison of time interval display
- Multiple results
- Seasonal results
- Results
- Distribute and pass multiple overhead transmission lines
- Telecommunications or MTL system communications
- Multiplication of the number of results for the submitted rule
- Bypassing the MTL system
- Final remarks
- Improved coverage of multiple underground transmission lines
- Telegraph or underground cable transmission line
- Potential limitations of transmission lines near underground cables
- Connect the cable with shielding
- Some additional terrain problems based on geometry
- Some examples
- Final remarks
- RELATED COURSES
- Transmission lines with high-frequency electromagnetic coupling: electrodynamic correction for TL estimation
- A high frequency electromagnetic field coupled to a straight wire
- Spreading of high-speed lines along curved lines
- Conclusion
- High-speed electromagnetic field coupling of long-range heavyweight wireless networks: an unconventional approach
- High-speed transmission lines are often connected with carbon nanotube connectors.
- Electromagnetic radiation from underground cables: frequency and spatial analysis
- Phone book

## Preface

Evaluation of the electromagnetic field due to transmission lines is an important problem in the field of electrical communications. Transmission line (TL) measurements are generally used for single transmission lines and small-scale electromagnetic waves; where the dominant transmission method is trans magnetic (TEM). The antenna path is a high-frequency optical path that is neglected in classical TL theory.

Since the development of TL theory and its derivatives by telegrapher Oliver Heaviside in the late 19th century, significant advances have been made in understanding the propagation of waves in communication lines. In 1965, Taylor, Satterwhite and Harrison extended the classical TL parameters to include an external electromagnetic field. Line transmission connectors and their equivalents derived after the have been used successfully to solve many problems related to EMP, lightning, and communications lines.

The relentless growth of electronic devices and the rise of multiple interference sources (such as High-Power Microwave and Ultra-Wideband systems) have led many to collapse the TL theory. program. Over the past decade, adapting TL theory to account for frequency effects has emerged as an important topic of study in electrical engineering. This effort led to the development of the so-called ‘generalized’ or ‘full-wave’ TL theory, which incorporates the effects of high-wave radiation while retaining the relative simplicity of TL.

This book covers both traditional line distribution concepts and recent developments. Designed for graduate students, researchers, and engineers interested in propagation theory and electronic magnetic interactions and propagation pathways; It particularly emphasizes multiple effects. The text is divided into two main parts consisting of seven chapters.

Part I provides combined information on classical linear type and various linear combinations.

Chapter 1 discusses the concept of TL and explains the origins of the field transmission equation. Three mutually exclusive approaches have been proposed to explain the coupling of the electromagnetic field to the transmission line and are presented and discussed. Chapters 2 and 3 address specific issues of multi-line transmission lines and underground cables, respectively. Various factors contributing to the propagation of pulses and in multiconductor systems are discussed, and calculation methods for long and transverse lines are shown.

Part II presents several methods designed to generalize TL theory and incorporate critical effects.

In Chapter 4, the TL similarity equation was derived using a simple equation to evaluate the currents and potentials induced by an external electromagnetic field on a wire of a certain geometric shape on a good surface. Based on the stress theory, a regular method was developed to solve the stress due to coupling, in which the zero thrust term was determined using the TL equation. Chapter 5 presents an efficient mixing method for calculating more than electromagnetic field lines for long, load-carrying lines, including stopes. Chapter 6 shows that TL theory can be generalized based on its application to general problems. A common type of derivative is often used in high-speed microelectronics and nanoelectronics. Chapter 7 mainly covers the electromagnetic field of underground cables. Two methods have been proposed and discussed, one in linear domain based on the Pocklington equation, the other in finite time using the Hallen integral equation.

Although the chapters follow a logical order and the beginning reader is encouraged to read the book in order, an effort has been made to make each chapter as independent as possible from the others. Therefore, readers interested in a particular section covered in one chapter need not consult other parts of the book.

This book is the result of the authors’ work in the field of electromagnetic field transmission lines. The authors are grateful to many people for their support, advice and guidance. Michel Ianoz, Juergen Nitsch and Fred M. We thank Tasche and all columnists for their contributions.

**Download For Free in PDF Format**