Abstract
High-frequency methods are very efficient for electromagnetic scattering from large targets whose size are on the tens or hundreds of wavelengths. However, they cannot incorporate the contributions from small features such as cracks and gaps, therefore rendering them unable to accurately treat large and complex targets having these small features. In this paper, a robust hybrid technique to remove this limitation is presented. This new technique combines a high-frequency method with a low-frequency method in such manner that (1) it includes all significant interactions between the large target and the small features and (2) it permits the high-frequency and low-frequency methods to be computed separately. The low-frequency method used in this work is the finite element method (FEM), which is well-known for its ability to model complex geometries and inhomogeneous materials.
Original language | English (US) |
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Pages (from-to) | 1476-1479 |
Number of pages | 4 |
Journal | IEEE Antennas and Propagation Society, AP-S International Symposium (Digest) |
Volume | 3 |
State | Published - 1995 |
Event | Proceedings of the 1995 IEEE Antennas and Propagation Society International Symposium. Part 4 (of 4) - Newport Beach, CA, USA Duration: Jun 18 1995 → Jun 23 1995 |
ASJC Scopus subject areas
- Electrical and Electronic Engineering