Stealth Antennas and Radomes
The purpose of Chapter 6 is to summarize the results of antenna and radome technology that are of particular interest for antenna stealth. Shape is everything when it comes to both the active and passive signatures of antennas and radomes. Once the shape is right, then such things as element pattern, amplitude weighting, thickness, and edge treatment become important. First, the relationship between the radiation pattern (beamwidth, sidelobes, and so forth) and the current distribution across the antenna aperture is discussed. This is followed by descriptions of the various types of antennas that have been applied to radar and data links, including reflectors, lenses, and arrays. Several methods of pattern synthesis are discussed. The effect of broadband signals and errors in the aperture distribution on the radiation and radar cross section (RCS) patterns is considered. Both the active and passive signatures of antennas and radomes will be covered. The chapter closes with brief discussions of radome and antenna near field interaction.
Stealth Antennas and Radomes, Page 1 of 2
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