Magnetic Prism Array Scanning Antenna

Physical Optics Corporation (POC) proposes to develop a new X-band scanning Magnetic Prism Array Scanning (MAPASA) antenna that utilizes magnetically induced variation of the refractive index in the composite material containing previously orientedhematite nanoparticles. Because of the strong response of this material to the external magnetic field, the proposed antenna can be compact and lightweight while providing a large scanning angle. This Hematite Composite Material (HECOM) offers anextremely high phase shifting dynamic range within microseconds. In Phase I, POC will optimize parameters of the composite material and the technology of its fabrication. The antenna design will be prepared for the full-scale prototype development inPhase II of this project. In addition to the initially targeted X-band frequency range, the proposed material and antenna concept can be used at larger frequencies in the Ku, K, and Ka bands and in the millimeter-wave bands. In Phase II, POC will preparea prototype antenna and test its performance. The proposed technology offers significant cost and weight reductions while providing flexibility in the beam forming and beam scanning. It also allows for fitting the antenna shape to the various radoms andenvelopes. The resulting scanning antenna can be used in a variety of military platforms and will have numerous applications in civilian radars.