E-polarized scattering from a conducting rectangular cylinder with an infinite axial slot filled by a resistively coated dielectric strip
Abstract
The potential use of resistive films for damping the resonance spikes observed in the radar cross section (RCS) spectrum of a partially open rectangular cavity is investigated using a recently developed finite-difference time-domain method that utilizes the resistive sheet boundary condition for the modeling of resistive films. Backscattering data obtained in the first resonant region for an E-polarized plane wave normally incident into the slotted side of the cavity are presented. It is shown that resonance behaviors can be eliminated completely with a low-resistance film which attenuates significantly the impinging wave.
- Publication:
-
IEEE Transactions on Antennas and Propagation
- Pub Date:
- June 1992
- DOI:
- 10.1109/8.144610
- Bibcode:
- 1992ITAP...40..731W
- Keywords:
-
- Backscattering;
- Dielectrics;
- Finite Difference Theory;
- Polarized Electromagnetic Radiation;
- Radar Cross Sections;
- Radar Targets;
- Boundary Conditions;
- Electrical Resistance;
- Q Factors;
- Communications and Radar