Title :
Propagation characteristics of a heaviside absorbing layer for TLM
Author :
Gosling, Ian G. ; Qu, Pingyu
Author_Institution :
Sch. of Electr. & Electron. Eng., Nanyang Technol. Univ., Singapore
fDate :
2/1/1997 12:00:00 AM
Abstract :
The perfectly matched layer for use with the finite-difference time-domain method is adapted to our transmission-line matrix simulation as what we call a heaviside absorbing layer (HAL). It is shown that the reflection coefficient for the wave incident on a HAL is less than that of the wave incident on a matched-load termination at all angles of incidence. Furthermore, the dispersion relation of a transmission-line matrix mesh of a symmetrical condensed node with both electric and magnetic loss stubs is derived. It provides guidance on how to choose the losses of HAL and other simulation parameters properly
Keywords :
dispersion (wave); electromagnetic wave propagation; finite difference time-domain analysis; transmission line matrix methods; TLM; dispersion relation; electric loss stub; finite-difference time-domain method; heaviside absorbing layer; magnetic loss stub; perfectly matched layer; propagation characteristics; reflection coefficient; symmetrical condensed node; transmission-line matrix simulation; Dispersion; Finite difference methods; Magnetic losses; Perfectly matched layers; Propagation losses; Reflection; Symmetric matrices; Time domain analysis; Transmission line matrix methods; Transmission lines;
Journal_Title :
Microwave Theory and Techniques, IEEE Transactions on
