Raytheon Company

Robert L Sisk, Iii

Gary H Johnson

Matthew Salem

Michael D Gordon

Brian S Scott

Christopher L Smith

Phillip Craige White

Larry A Coleman

Embodiments of the present disclosure relate to a substrate integrated waveguide monopulse antenna. The antenna comprises a substrate having first and second opposing surfaces. A first conductor is disposed on the first surface of the substrate. A plurality of antenna elements are provided on the first surface of the substrate. A second conductor is disposed on the second surface of the substrate. A plurality of conductive via holes extend through said substrate and extend between the first and second surfaces. The via holes are arranged to form a plurality of resonant cavities with at least one resonant cavity coupled to each of the antenna elements. The substrate also comprises a plurality of hybrid couplers, and two of the plurality of resonant cavities are coupled to at least one port of the plurality of hybrid couplers. A plurality of output couplers provided on the second surface of the substrate.

Substrate integrated waveguide monopulse and antenna system

A protective cover () for an instrument dome () extending from a body () of a vehicle, such as a missile. The cover () includes multiple segments (and) having trailing ends () connectable to the body () at joints () that allow for rotational movement. The cover () further includes a releasable holder () that includes a retention device () that holds leading ends () of the segments (and) together, and a release mechanism () for causing the retention device () to release the leading ends (). The joints () hold the trailing ends () of the segments (and) to the body () through a predetermined range of motion beyond which the segments (and) will be released to separate from the body () when the segments (and) rotate beyond the predetermined range.

Releasable radome cover

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Sahuarita, AZ, United States of America

Robert L Sisk, Iii