Staircasing errors in FDTD at an air-dielectric interface

Authors
Akyurtlu, A Werner, DH Veremey, V Steich, DJ Aydin, K
Citation
A. Akyurtlu et al., Staircasing errors in FDTD at an air-dielectric interface, IEEE MICR G, 9(11), 1999, pp. 444-446
Citations number
8
Categorie Soggetti
Eletrical & Eletronics Engineeing
Journal title
IEEE MICROWAVE AND GUIDED WAVE LETTERS
ISSN journal
10518207 → ACNP
Volume
9
Issue
11
Year of publication
1999
Pages
444 - 446
Database
ISI
SICI code
1051-8207(199911)9:11<444:SEIFAA>2.0.ZU;2-P
Abstract
An analytical expression is derived for the reflection coefficient of a sta ircased air/dielectric interface. This expression for the reflection coeffi cient is then used to determine the attenuation and propagation constants o f the wave induced by staircasing. It is demonstrated here that the errors due to staircasing increase as the relative dielectric permittivity is incr eased and converges to the results for an air-PEG interface.