Title :
The perfectly matched layer as lateral boundary in finite-difference transmission-line analysis
Author :
Tischler, Thorsten ; Heinrich, Wolfgang
Author_Institution :
Ferdinand-Braun-Inst. fur Hochstfrequenztech., Berlin, Germany
fDate :
12/1/2000 12:00:00 AM
Abstract :
Using a perfectly matched layer (PML) as lateral boundary in waveguide analysis introduces artificial modes and other unexpected effects. This paper presents results of a finite-difference frequency-domain approach and an analytical investigation of the PML´s capability to simulate the lateral open space, including an accuracy estimation. A criterion how to detect the desired modes out of the mode spectrum is also given. The findings are verified for a coplanar waveguide radiating into the substrate
Keywords :
absorbing media; coplanar waveguides; finite difference methods; frequency-domain analysis; waveguide theory; artificial modes; coplanar waveguide; finite-difference frequency-domain approach; finite-difference transmission-line analysis; lateral boundary; lateral open space; mode spectrum; perfectly matched layer; waveguide analysis; Anisotropic magnetoresistance; Coplanar waveguides; Eigenvalues and eigenfunctions; Electromagnetic waveguides; Finite difference methods; Frequency domain analysis; Maxwell equations; Perfectly matched layers; Time domain analysis; Transmission lines;
Journal_Title :
Microwave Theory and Techniques, IEEE Transactions on
