SEM formulation of the fields scattered from arbitrary wire structures
- 1 May 1993
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Electromagnetic Compatibility
- Vol. 35 (2) , 249-254
- https://doi.org/10.1109/15.229435
Abstract
The late-time field scattered from an arbitrary wire structure is formulated in terms of the singularity expansion method (SEM), and the contribution of each mode is shown to be representable as the product of two coupling coefficients. One coefficient governs how much of the incident field couples to each natural mode, and the other governs how much of each natural mode couples to the reradiated field. Numerical results are presented for the fields scattered from both straight and L-shaped wire structures and are compared to fields calculated using frequency-domain techniques. The fields calculated using these two different techniques are shown to agree very well after an appropriate time interval has elapsed.Keywords
This publication has 4 references indexed in Scilit:
- Approximate natural response of an arbitrarily shaped thin wire scattererIEEE Transactions on Antennas and Propagation, 1991
- Singularity expansion representations of fields and currents in transient scatteringIEEE Transactions on Antennas and Propagation, 1984
- A note on the representation of scattered fields as a singularity expansionIEEE Transactions on Antennas and Propagation, 1984
- The far-field response of a step-excited linear antenna using SEM [singularity expansion method]IEEE Transactions on Antennas and Propagation, 1975