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Exact modal absorbing boundary condition for waveguide simulations - discrete Green's function approach
Abstract
A modal absorbing boundary condition (ABC) based on the discrete Green's function (DGF) is introduced and applied for termination of waveguides simulated by means of the finite-difference time-domain (FDTD) method. The differences between the developed approach and implementations already demonstrated in the literature are presented. By applying DGF, a consistent theoretical approach to modal ABC in the FDTD method is obtained. Developed ABC is applicable to propagating and evanescent modes yielding the reflection error below -250 dB. Because the perfect matching may be computationally expensive, results of investigations of the tradeoff between computational efficiency and accuracy of the developed method are presented.
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- Category:
- Conference activity
- Type:
- materiały konferencyjne indeksowane w Web of Science
- Title of issue:
- 20th International Conference on Microwaves, Radar, and Wireless Communication (MIKON) strony 1 - 4
- Language:
- English
- Publication year:
- 2014
- Bibliographic description:
- Wiktor M., Stefański T..: Exact modal absorbing boundary condition for waveguide simulations - discrete Green's function approach, W: 20th International Conference on Microwaves, Radar, and Wireless Communication (MIKON), 2014, Politechnika Warszawska,.
- DOI:
- Digital Object Identifier (open in new tab) 10.1109/mikon.2014.6900016
- Verified by:
- Gdańsk University of Technology
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