This book begins with an essential background discussion of the many applications and drawbacks for paraxial beams, which is required in the treatment of the complex space theory of spatially localized electromagnetic waves. The author highlights that there is a need obtain exact full-wave solutions that reduce to the paraxial beams in the appropriate limit. Complex Space Source Theory of Spatially Localized Electromagnetic Waves treats the exact full-wave generalizations of all the basic types of paraxial beam solutions. These are developed by the use of Fourier and Bessel transform techniques and the complex space source theory of spatially localized electromagnetic waves is integrated as a branch of Fourier optics. Two major steps in the theory are described as: 1) the systematic derivation of the appropriate virtual source in the complex space that produces the required full wave from the paraxial beam solution and 2) the determination of the actual secondary source in the physical space that is equivalent to the virtual source in the complex space.
There are several ways to classify electromagnetic waveguides. Depending on their boundaries, they can be classified into waveguides with perfectly reflecting walls or finite impedance walls, as well as open waveguides. In terms of their applications, there are the low attenuation and low delay distortion waveguides for telecommunication, the low crosspolar field waveguides used as feeds for reflector antennas in frequency reuse schemes, as well as the leaky feeders in continuous access communication systems. There are also the natural waveguides such as tunnels and the earth-ionosphere waveguide.
This text is an attempt to give a unified, analytical treatment to most of these diverse types of waveguides. Emphasis is given to modal characteristics, modal excitation and mode scattering at longitudinal discontinuities. The book will serve not only as a text for undergraduate courses, but also as a reference book for those involved in research work on electromagnetic waveguides.
While many books have claimed parallels between modern physics and Eastern philosophy, none have dealt with the historical influences of both Chinese traditional thought and non-mechanistic, holistic western thought on the philosophies of the scientists who developed electromagnetic field theory. In The Holistic Inspirations of Physics, R. Valentine Dusek asks: to what extent is classical field theory a product of organic and holistic philosophies and frameworks?
Electromagnetic theory has been greatly influenced by holistic worldviews, Dusek posits, and he highlights three alternative scientific systems that made the development of electromagnetic theory possible: medieval Chinese science, Western Renaissance occultism, and the German romantic traditions. He situates these "alternative" approaches in their social context and background, and traces their connection with components of “accepted” physical science in relation to a number of social movements and philosophical theories.
Readers will learn of specific contributions made by these alternative traditions, such as the Chinese inventing the compass and discovering the earth's magnetic field and magnetic declination. Western alchemical ideas of active forces and "occult" influences contributed to Newton's theory of gravitation force as action at a distance, rather as a result of purely mechanical collisions and contact action.
Dusek also describes the extent to which women's culture supplied (often without credit) the philosophical background ideas that were absorbed into mainstream field theory.