Title :
A stretched coordinate technique for numerical absorption of evanescent and propagating waves in planar waveguiding structures
Author :
Gribbons, M.A. ; Pinello, W.P. ; Cangellaris, Andreas C.
Author_Institution :
Dept. of Electr. & Comput. Eng., Arizona Univ., Tucson, AZ, USA
Abstract :
Berenger´s PML technique is modified to allow for the absorption of evanescent waves, as well as propagating waves, in FDTD modeling of wave propagation in planar waveguiding structures. Analytical results are used to illustrate the validity and capability of the proposed modification. Results from FDTD and compact 2D-FDTD simulations demonstrate its performance.<>
Keywords :
dielectric waveguides; eigenvalues and eigenfunctions; finite difference time-domain analysis; microstrip lines; planar waveguides; waveguide theory; Berenger´s PML technique; FDTD modeling; compact 2D-FDTD simulations; evanescent waves; numerical absorption; perfectly matched layer; planar waveguiding structures; propagating waves; stretched coordinate technique; validity; wave propagation; Absorption; Circuit simulation; Electromagnetic scattering; Finite difference methods; Maxwell equations; Optical scattering; Polarization; Programmable logic arrays; Slabs; Time domain analysis;
Conference_Titel :
Microwave Symposium Digest, 1995., IEEE MTT-S International
Conference_Location :
Orlando, FL, USA
Print_ISBN :
0-7803-2581-8
DOI :
10.1109/MWSYM.1995.406104
