Antenna Array Architectures that Accommodate Polarization Diversity and Beam-Spoiling Architecture

Millitech will investigate the tradeoffs between required design parameters ofan electronically scanned antenna (ESA) operating in upper Ka-Band (35 - 40 GHz),and constructed as a planar aperture. The main thrust of this research will be to generate a design that has fast switching between vertical, horizontal, right circular and left circular polarizations with minimal feedline losses. Other parameters foroptimization include scanning angle range, beamwidths, beam spoilingcapability, and polarization purity. This design will be created with CAD tools, and simulated with a computer models to demonstrate conformance to required specifications. At the end of Phase I, Millitech will be ready to proceed with the fabrication ofsubarray prototypes of the ESA design. A lightweight, loww loss ESA would have several applications, among which includevehicular radar, wetaher radar, and mobile satellite communications.