Multiple Mode Control of Grating Lobes in Limited Scan Arrays,

摘要

This report is the fourth in a series describing the use of multiple higher order modes for grating lobes control in arrays of large aperture elements scanned over restricted spatial sectors. Arrays of this type are useful in a number of applications including precision approach radar, weapons locators and satellite communications systems. The report summarizes an extensive experimental and theoretical study that includes the design and use of dielectric lenses for control of E-plane null filling for an 8-element array, the investigated. A computer model has been developed to study the effect on the boresight of a noise source in the near field of a monopulse antenna. (Author)