Abstract
In this paper, we investigate an artificially-synthesized absorbing medium by using the Finite Difference Time Domain (FDTD) technique. The artificial medium is composed of a doublyperiodic array of lossy electric and magnetic material blocks (i.e., μ and ε media arranged in a checkerboard configuration). We analyze its reflection characteristics for both normal and oblique incidence cases. It is demonstrated that, if properly designed, the reflection characteristics of the checkerboard are considerably superior to those of a uniform ε = μ material of the same thickness. A multi-layer checkerboard is used to truncate a waveguide in the FDTD simulation; the result is comparable to that of an unsplit Perfectly Matched Layer (PML) with the same number of layers.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 1005-1026 |
| Number of pages | 22 |
| Journal | Journal of Electromagnetic Waves and Applications |
| Volume | 15 |
| Issue number | 8 |
| DOIs | |
| State | Published - Jan 1 2001 |
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All Science Journal Classification (ASJC) codes
- Electronic, Optical and Magnetic Materials
- Physics and Astronomy(all)
- Electrical and Electronic Engineering
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Finite difference time domain (Fdtd) analysis of an artificially-synthesized absorbing medium. / Yu, Wenhua; Werner, Douglas Henry; Mittra, Raj.
In: Journal of Electromagnetic Waves and Applications, Vol. 15, No. 8, 01.01.2001, p. 1005-1026.Research output: Contribution to journal › Article
TY - JOUR
T1 - Finite difference time domain (Fdtd) analysis of an artificially-synthesized absorbing medium
AU - Yu, Wenhua
AU - Werner, Douglas Henry
AU - Mittra, Raj
PY - 2001/1/1
Y1 - 2001/1/1
N2 - In this paper, we investigate an artificially-synthesized absorbing medium by using the Finite Difference Time Domain (FDTD) technique. The artificial medium is composed of a doublyperiodic array of lossy electric and magnetic material blocks (i.e., μ and ε media arranged in a checkerboard configuration). We analyze its reflection characteristics for both normal and oblique incidence cases. It is demonstrated that, if properly designed, the reflection characteristics of the checkerboard are considerably superior to those of a uniform ε = μ material of the same thickness. A multi-layer checkerboard is used to truncate a waveguide in the FDTD simulation; the result is comparable to that of an unsplit Perfectly Matched Layer (PML) with the same number of layers.
AB - In this paper, we investigate an artificially-synthesized absorbing medium by using the Finite Difference Time Domain (FDTD) technique. The artificial medium is composed of a doublyperiodic array of lossy electric and magnetic material blocks (i.e., μ and ε media arranged in a checkerboard configuration). We analyze its reflection characteristics for both normal and oblique incidence cases. It is demonstrated that, if properly designed, the reflection characteristics of the checkerboard are considerably superior to those of a uniform ε = μ material of the same thickness. A multi-layer checkerboard is used to truncate a waveguide in the FDTD simulation; the result is comparable to that of an unsplit Perfectly Matched Layer (PML) with the same number of layers.
UR - http://www.scopus.com/inward/record.url?scp=0034831144&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0034831144&partnerID=8YFLogxK
U2 - 10.1163/156939301X00364
DO - 10.1163/156939301X00364
M3 - Article
VL - 15
SP - 1005
EP - 1026
JO - Journal of Electromagnetic Waves and Applications
JF - Journal of Electromagnetic Waves and Applications
SN - 0920-5071
IS - 8
ER -