Raytheon Company

Norbert Sa

Joseph S Pleva

Joseph Simoneau

Steven A Upson

James B Conant

Eugene Gelshteyn

Matthew Fassett

John F Toth

William F Miccioli

A Robert Chinchillo

Edward G Churchwell

Conant: James B

An antenna is described including a dielectric substrate having a first and second surface and a first sheet of conductive material disposed on the first surface of the first dielectric substrate, the first sheet of conductive material having a plurality of apertures. The antenna further includes a plurality of patch radiator elements disposed adjacent the second surface of the dielectric substrate, each one of the plurality of patch radiator elements disposed diametrically opposed a corresponding one of the plurality of apertures. With such an arrangement, an antenna is provided having broader bandwidth but less feedline radiation.

Patch coupled aperature array antenna

An antenna is described including strip conductor circuitry for interconnecting a plurality of patch radiator elements to a common feed. The strip conductor circuitry includes a plurality of four port quadrature couplers having an isolation port. The antenna further includes a plurality of radio frequency terminating loads and a technique for capacitively coupling one of the plurality of radio frequency terminating loads to the isolation port of a corresponding one of the plurality of four port quadrature couplers of the strip conductor circuitry. With such an arrangement, a least expensive antenna is provided which can survive a high temperature environment.

A radio frequency connector for a patch-coupled aperture array antenna is described including a coaxial connector having an outer shield and an inner conductive member with a dielectric material disposed between the outer shield and a portion of the inner conductive member and a dielectric substrate having a first and a second surface with an opening extending from the first surface of the dielectric substrate to the second surface of the dielectric substrate, the inner conductive member extending through at least a portion of the opening of the dielectric substrate. The radio frequency connector further includes a coupling conductive members having a protruding pin, the protruding pin connected to the inner conductive member and a sheet of dielectric material disposed juxtapositional with the dielectric substrate and covering the coupling conductive member. With such an arrangement, a less expensive radio frequency connector for an antenna is provided which can survive a high temperature environment.

Radio frequency connector for a patch coupled aperture array antenna

A monopulse receiving arrangement is shown to comprise orthogonally polarized and electrically separate monopulse antenna arrays, one such array being made up of juxtaposed slotted waveguides and the other being made up of at least one monopulse array of dipoles printed on a dielectric material.

Cross-polarized antenna

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Burlington, MA, United States of America

Norbert Sa