A corrugated surface with low backscatter
Abstract
A low backscatter corrugated metal surface has been designed, fabricated, and tested for H-polarized transverse electromagnetic (TEM) incident waves. The problem has been formulated using the scattering matrix approach and reflection and transmission co-efficients at the fin-air interface are determined using an integral equation approach. Hence, an expression for monostatic radar cross section (RCS) is obtained. The RCS has been experimentally measured using a continous wave (CW) radar and good agreement has been obtained with theoretical results. The fin-corrugated surface gives a rather small return (35 dB down with respect to the flat conducting plate of same size) for incident angles up to 80.6 deg when the period of corrugation ranges between lambda/2 and lambda.
- Publication:
-
IEEE Transactions on Antennas and Propagation
- Pub Date:
- August 1984
- DOI:
- 10.1109/TAP.1984.1143421
- Bibcode:
- 1984ITAP...32..870B
- Keywords:
-
- Backscattering;
- Corrugating;
- Electromagnetic Scattering;
- Metal Surfaces;
- Radar Cross Sections;
- S Matrix Theory;
- Continuous Wave Radar;
- Finned Bodies;
- Polarized Electromagnetic Radiation;
- Radar Scattering;
- Specular Reflection;
- Communications and Radar