Design of a Cylindrical Array for Multifunction Use
[Technical Report, Memorandum Report]
NAVAL RESEARCH LAB WASHINGTON DC
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In recent years, the Navy has looked to transition to multifunction array apertures to reduce the size of antenna farms on ships masts and other space constrained areas. Cylindrical phased arrays are an attractive aperture for multifunction radio frequency RF systems requiring a 360-deg field of view because of their immense flexibility in radiation pattern performance. Cylindrical arrays offer the pattern versatility to operate with multiple pattern shapes. In one mode, cylindrical arrays form directional patterns that are scanned throughout the azimuth plane with nearly constant gain, beamwidth, sidelobe level, and polarization properties avoiding the degradation faced by multi-faced planar array systems. Apertures must support a wide operational bandwidth to support wide ranging functions. This report presents the design of an all metal cylindrical array of stepped-notch elements, which will be utilized as the transmitreceive aperture for the final radar demonstration of an NRL base program.
- Electrical and Electronic Equipment