Title :
Radio pulse propagation in a smoothly bent oversized waveguide
Author :
Popov, Alexei V.
Author_Institution :
Ionosphere & Radio Wave Propogation IZMIRAN, Inst. of Terrestrial Magnetism, Moscow, Russia
Abstract :
An efficient method to calculate EM pulse dynamics in a wide nonuniform waveguide is proposed. Fourier transformation of the adiabatic approximation into time domain results in a series of traveling pulsed modes whose group velocities depend on the mode number, waveguide cross section and axis curvature. Parabolic equation can be used for numerical implementation of the asymptotic solution.
Keywords :
Fourier transforms; electromagnetic pulse; parabolic equations; radiowave propagation; time-domain analysis; waveguide discontinuities; waveguide theory; EM pulse dynamics; Fourier transformation; adiabatic approximation; axis curvature; group velocity; mode number; parabolic equation; radio pulse propagation; time domain; waveguide cross section; wide nonuniform waveguide; Boundary conditions; Convolution; Diffraction; Equations; Frequency; Impedance; Ionosphere; Nonuniform electric fields; Tiles; Transmission line matrix methods;
Conference_Titel :
Day on Diffraction, 2003. Proceedings. International Seminar
Conference_Location :
Saint Petersburg, Russia
Print_ISBN :
5-94158-070-3
DOI :
10.1109/DD.2003.238230
