Effect of Fresnel zone blockage on very low sidelobe antennas
Abstract
Silver's method for estimating antenna sidelobes owing to blockage is accurate only for obstacles in the near field; it is unduly pessimistic for obstacles elsewhere in the Fresnel zone. A method for calculating the sidelobe level in the latter case is presented and applied to some problems that are typical as well as practical.
- Publication:
-
NASA STI/Recon Technical Report N
- Pub Date:
- October 1977
- Bibcode:
- 1977STIN...7823296F
- Keywords:
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- Fresnel Region;
- Radar Antennas;
- Sidelobes;
- Far Fields;
- Near Fields;
- Numerical Analysis;
- Scattering;
- Communications and Radar