By Boris Z. Katsenelenbaum
This primary ebook to enhance the theoretical fundamentals from the concept that of guided wave optics is ready to develop into a typical in basic options of electromagnetic waves in the box of telecommunications.
Backgrounds of Antenna Theory
Diffraction on metal and Dielectric Objects
With its chapters on excessive frequency waveguides this e-book is aimed toward either scientists and execs in electric engineering and telecommunications.
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Additional resources for High Frequency Electrodynamics
3 Eigenwaves in chiral media Plane waves of any linear polarization are the eigenwaves in a nonchiral inﬁnite medium, that is, they propagate retaining their shape. All eigenwaves are degenerated, that is, they have the same wave number h. In the chiral medium, the linearly polarized plane wave is not an eigenwave. The eigenwaves have another polarization in the chiral medium: they are circularly polarized. The circularly polarized waves, which differ from each other by the turning direction, are not degenerated; they have different values of h.
The case when this is not true, that is, when there exist more than one solution, is considered in the next subsection. Now we note that in this case it may turn out that there is no solution at all, that is, the accepted idealizations are not consistent. 29) supplemented by the conditions near a set of the idealized objects have the unique solution. 82) near the edge or vertex as well as the conditions imposed on the constitutive constants (ε ≤ 0, µ ≤ 0) and the impedance (w ≥ 0). 1) is also an idealization.
The consequence would precede the cause; the causality principle would be violated. The paradox also takes place if assuming that ε (ω ) = const, ε (ω ) > 0 in a narrow frequency band and ε (ω ) = 0 outside. We outline the mathematical technique allowing us to deduce the connection between the two functions ε (ω ), ε (ω ) of the frequency using the causality principle. This connection is called the dispersion relation. It holds for any material medium and it should be considered while creating composites.