Hybrid STF–FDTD approach for EM scattering analysis with an extremely slow-decaying pulse incidence
✍ Scribed by Yubo Yan; Debiao Ge; Yinchao Chen
- Publisher
- John Wiley and Sons
- Year
- 2000
- Tongue
- English
- Weight
- 177 KB
- Volume
- 28
- Category
- Article
- ISSN
- 0895-2477
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✦ Synopsis
In this paper, we present a hybrid scattering transfer ( ) ( ) function STF and finite-difference time-domain FDTD approach for the calculation of electromagnetic transient responses with the incidence of an extremely slow-decaying pulse, e.g., a double-exponential pulse. We ( ) first introduce a scattering transfer function STF into the scattering system based on the principle of the linear system theory by using a fast-decaying pulse as the incident wa¨e with the bandwidth of interest. Next, we deri¨e the scattering response for an extremely slow-decaying pulse incidence with the help of the Fourier and in¨erse Fourier transforms. We ha¨e demonstrated the feasibility and superiority of the presented approach by analyzing some practical transient scattering cases.