Comparison of Models for Calculating the Effect of Radome Damage on Antenna Radiation Patterns,
Abstract
Several different computer models have been developed for calculating the far-field radiation patterns of monopulse radar antennas covered by a damaged radome. The damaged portion of the radome (patch area) is characterized by a complex dielectric constant which differs from the unperturbed radome material. The computer models are used to study boresight shifts in the monopulse difference patterns for various patch shapes, patch sizes, and patch locations. The effect of the patch shape and location on the tracking signal is also investigation of null width effects on sidelobe levels, the experimental study of an element and control circuitry for two-dimensional scan, bandwidth effects, and the use of dielectric spatial filters and row displacement for residual grating lobe suppression. In addition to these new results, data are given to enable the designer to determine element size and the minimum number of elements for arrays with approximately -20 dB grating lobes, and with near sidelobes reduced far below these levels.
Document Details
- Document Type
- Technical Report
- Publication Date
- Oct 01, 1976
- Accession Number
- ADA035508
Entities
People
- Richard L. Taylor
- Robert J. Papa
Organizations
- Rome Laboratory