Title :
Analysis of the transition from rectangular waveguide to shielded dielectric image guide using the finite-difference time-domain method
Author :
Dib, Nihad I. ; Katehi, Linda P B
Author_Institution :
Dept. of Electron. Eng. & Comput. Sci., Michigan Univ., Ann Arbor, MI, USA
Abstract :
The transition from a rectangular waveguide to a shielded dielectric image guide is analyzed using the finite-difference time-domain (FDTD) method. This method has not been applied to three dimensional dielectric waveguide discontinuities before. The transition problem under consideration demonstrates the ability of the FDTD technique to model rather complex structures where two different transmission media exist. The calculated return loss agrees very well with data obtained using other techniques which validates the application of the FDTD method for this problem.<>
Keywords :
dielectric waveguides; finite difference time-domain analysis; losses; rectangular waveguides; waveguide theory; FDTD method; finite-difference time-domain method; rectangular waveguide; return loss; shielded dielectric image guide; three dimensional dielectric waveguide discontinuities; waveguide transition; Dielectric loss measurement; Dielectric losses; Finite difference methods; Frequency; Image analysis; Millimeter wave circuits; Rectangular waveguides; Reflection; Time domain analysis; Waveguide transitions;
Journal_Title :
Microwave and Guided Wave Letters, IEEE
