Title :
Resonant and nonresonant diffraction by open image-type slotted structures
Author :
Chernokozhin, Eugenii V. ; Shestopalov, Youri V.
Author_Institution :
Dept. of Eng. Sci., Phys. & Math., Karlstad Univ., Sweden
fDate :
5/1/2001 12:00:00 AM
Abstract :
The problem of the electromagnetic (EM) wave diffraction by canonical image type slotted structures is studied by the methods of perturbation theory applied to analytical operator valued functions. Fundamental (scattering) frequencies, obtained in the form of expansions in powers of a small parameter (slotwidth), are shown to have negative imaginary parts. Explicit representations for scattered fields are obtained both in the resonant and nonresonant cases, and the amplitude and phase distributions are calculated
Keywords :
cavity resonators; electromagnetic wave diffraction; electromagnetic wave scattering; perturbation theory; spectral-domain analysis; waveguide theory; EM wave diffraction; amplitude distribution; analytical operator valued functions; canonical image type slotted structures; cavities; electromagnetic wave diffraction; fundamental scattering frequencies; negative imaginary parts; nonresonant diffraction; open image-type slotted structures; open slotted waveguides; perturbation theory; phase distribution; resonant diffraction; scattered fields; slotted resonators; slotwidth; small parameter; Books; Electromagnetic analysis; Electromagnetic diffraction; Electromagnetic scattering; Equations; Frequency; Image analysis; Resonance; Scattering parameters; Slot antennas;
Journal_Title :
Antennas and Propagation, IEEE Transactions on
