Raytheon Company

James B Conant

Joseph S Pleva

Norbert Sa

Matthew Fassett

Eugene Gelshteyn

Joseph Simoneau

Steven A Upson

Edward G Churchwell

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.

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Brighton, MA, United States of America

James B Conant