Raytheon Company

Benjamin L Cannon

Jared W Jordan

Byron B Taylor

Kelly Ryian Stewart

Clifford E Blanton

A radome is provided and includes a dielectric wall and metallic layers embedded within and/or disposed on the monolithic wall. Each of the metallic layers is configured to act as a sub-resonant reactive impedance surface at a lower frequency and as a frequency selective surface at an upper frequency.

Multi-bandpass, dual-polarization radome with embedded gridded structures

A radome is provided and includes a dielectric wall and one or more inductive metallic grids embedded in and/or disposed on the dielectric wall. Each of the one or more grids includes compressed grid arms and is tuned to permit bandpass transmission at upper and lower frequencies.

Multi-bandpass, dual-polarization radome with compressed grid

A stripline includes a first ground plane; a second ground plane; a first signal trace located between the first ground plane and the second ground plane; and a center via that extends through the stripline and is in electrical contact with the first ground plane and the first signal trace.

Coaxial-to-stripline and stripline-to-stripline transitions including a shorted center via

A beam-shaping element is provided to shape RF feed energy for reflector-based antennas. The RF beam-shaping element is located between the primary reflector and the antenna feed and configured to direct RF energy from the feed away from a blockage created by the feed itself towards unblocked regions of the primary reflector. The beam-shaping element allows for a simplified feed design. The feed may comprise one or more feed elements, each comprising a radiating element and a feed to the radiating element such as a cavity-backed slot radiator and stripline trace. In a monopulse tracking system, each quadrant may include only a single feed element. In common aperture systems, the RF beam-shaping element may be formed on only the rear surface of the secondary reflector that allows transmission at the predefined RF wavelength while reflecting energy of a second predetermined wavelength to another sensor.

Growing community of inventors

Tucson, AZ, United States of America

Benjamin L Cannon