Incremental Diffraction Coefficients for the Truncated Half-Plane and the Calculation of Bistatic Radar Cross Section of the Disk
Abstract
In this report non-uniform current (PTD) high frequency incremental diffraction coefficients are derived for the perfectly conducting strip regarded as a truncated half-plane. An essential feature of the high frequency solution derived is that the diffraction at the trailing edge of the H-wave non-uniform leading edge current, which becomes appreciable near grazing incidence, is taken into account even when the leading and trailing edges of the incremental strips are not parallel. The incremental diffraction coefficients for the strip are then used to calculate bistatic radar cross section patterns of a perfectly conducting disk illuminated by a plane wave. Good agreement in general is obtained between the exact bistatic cross section patterns of the disk and the approximate bistatic cross section patterns obtained by adding the integral of the incremental diffraction coefficients around the edge of the disk to the physical optics scattered field.
Document Details
- Document Type
- Technical Report
- Publication Date
- Oct 01, 1989
- Accession Number
- ADA228689
Entities
People
- Arthur Yaghjian
- Robert A. Shore
Organizations
- Rome Laboratory