Title :
A new TLM node for Berenger´s perfectly matched layer
Author :
Peila, N. ; Ney, Michel M.
Author_Institution :
Ecole Nat. Superieure des Telecommun. de Bretagne, Brest, France
fDate :
11/1/1996 12:00:00 AM
Abstract :
A new two-dimensional (2-D) transmission-line matrix (TLM) node for the modeling of perfectly matched layer (PML) media is presented. A rigorous field formulation of the 2-D TLM node allows one to construct a node that has a scattering matrix fully compatible with the standard 2-D hybrid node. This approach avoids the coupling of the TLM algorithm with a finite difference time-domain (FDTD) approximation of PML field differential equations. The simulation of a wideband matched load for a WR-28 rectangular waveguide is presented for validation. A return loss better than 60 dB is obtained over the 25-40 GHz-frequency band
Keywords :
S-matrix theory; differential equations; electromagnetic field theory; electromagnetic wave absorption; transmission line matrix methods; waveguide theory; 2D transmission-line matrix node; Berenger perfectly matched layer; PML media; WR-28 rectangular waveguide; field formulation; modeling; scattering matrix; two-dimensional TLM node; wideband matched load; Approximation algorithms; Couplings; Differential equations; Finite difference methods; Perfectly matched layers; Scattering; Time domain analysis; Transmission line matrix methods; Transmission lines; Two dimensional displays;
Journal_Title :
Microwave and Guided Wave Letters, IEEE
