Title :
Scattering in junction by posts consisting of a segment of conducting cylinder
Author :
Lech, Rafal ; Polewski, Michal ; Mazur, Jerzy
Author_Institution :
Fac. of Electron., Gdansk Univ. of Technol., Poland
fDate :
3/1/2003 12:00:00 AM
Abstract :
The theory of scattering in junction by posts consisting of a segment of conducting cylinder is developed using a combination of a modified iterative scattering procedure and an orthogonal expansion method. The multimode scattering matrix of the junction is obtained. The change of the post´s configuration, as well as a simple rotation of the post, makes it possible to vary the electrical characteristic. The validity and accuracy of the method is verified by comparing the numerical results with those given in literature, received from finite-difference time-domain (FDTD) simulation and our own measurements. The proposed procedure is efficient and faster than alternative numerical solutions such as the FDTD method used for comparison.
Keywords :
S-matrix theory; conducting bodies; electromagnetic wave scattering; iterative methods; rectangular waveguides; waveguide junctions; waveguide theory; conducting cylinder; electrical characteristic; modified iterative scattering procedure; multimode scattering matrix; orthogonal expansion method; rectangular waveguide; scattering; Eigenvalues and eigenfunctions; Electric variables; Electromagnetic scattering; Electromagnetic waveguides; Finite difference methods; Iterative methods; Magnetic fields; Time domain analysis; Transmission line matrix methods; Waveguide junctions;
Journal_Title :
Microwave Theory and Techniques, IEEE Transactions on
DOI :
10.1109/TMTT.2003.808721
