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

Volume

45

Issue

2

fYear

1997

fDate

2/1/1997 12:00:00 AM

Firstpage

268

Lastpage

273

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;

fLanguage

English

Journal_Title

Microwave Theory and Techniques, IEEE Transactions on

Publisher

ieee

ISSN

0018-9480

Type

jour

DOI

10.1109/22.557609

Filename

557609