Title :
Accurate analysis of losses in waveguide structures by compact two-dimensional FDTD method combined with autoregressive signal analysis
Author :
Fujii, Masafumi ; Kobayashi, Sumio
Author_Institution :
Sumitomo Metal Ind. Ltd., Amagasaki, Japan
fDate :
6/1/1996 12:00:00 AM
Abstract :
An efficient two-dimensional finite-difference time-domain (2-D FDTD) method combined with an autoregressive (AR) signal analysis has been proposed for analyzing the propagation properties of microwave guiding structures. The method is especially suitable for analyzing lossy transmission lines; and in contrast with previous approaches, it is based on an algorithm of a real domain only. The algorithm is verified by comparing the numerical results with exact solutions for dielectric loaded rectangular waveguides. The conductor losses in a variety of microstrip lines and coplanar waveguides have been accurately estimated by solving the electromagnetic fields in the conductors directly
Keywords :
autoregressive processes; coplanar waveguides; dielectric-loaded waveguides; finite difference time-domain analysis; losses; microstrip lines; rectangular waveguides; waveguide theory; algorithm; autoregressive signal analysis; conductor losses; coplanar waveguides; dielectric loaded rectangular waveguides; electromagnetic fields; losses; microstrip lines; microwave guiding structures; propagation properties; transmission lines; two-dimensional FDTD method; waveguide structures; Algorithm design and analysis; Conductors; Electromagnetic waveguides; Finite difference methods; Microwave propagation; Microwave theory and techniques; Propagation losses; Signal analysis; Time domain analysis; Two dimensional displays;
Journal_Title :
Microwave Theory and Techniques, IEEE Transactions on
