USA As Represented by Secretary of the Navy

Christopher G Yelton

Zachary A Sechrist

Linda F Johnson

Mark B Moran

Gretchen Hawes Hefley

Joseph Evans Estevez

The embodiments are directed to systems having an array in intimate adjacent contact with a substrate foundation. The array has a plurality of radio frequency (RF) witness films overlain on the substrate foundation. Each RF witness film is a unit cell defined in a three-dimensional coordinate frame of reference, and is centered at an origin of the three-dimensional coordinate frame of reference. Each RF witness film in the plurality of RF witness films is equally-spaced from adjacent RF witness films.

Radio frequency signals detection systems

The embodiments are directed to protecting objects having sensitive electronics from electromagnetic energy radiation. An object with the sensitive electronics has a film applied to the object's outer surface. The film conforms to the object's outer surface contours. The film has a substrate foundation, an array in intimate adjacent contact with the substrate foundation. The array has a plurality of radio frequency (RF) witness films overlain on the substrate foundation. Each RF witness film in the plurality of RF witness films is equally-spaced from adjacent RF witness films.

Shielding systems for a platform experiencing unplanned electromagnetic energy radiation

The embodiments include an array in intimate adjacent contact with a substrate foundation. The array has a plurality of radio frequency (RF) witness films overlain on the substrate foundation. Each RF witness film is a unit cell defined in a three-dimensional coordinate frame of reference, and is centered at an origin of the three-dimensional coordinate frame of reference. Each RF witness film in the plurality of RF witness films is equally-spaced from adjacent RF witness films.

The embodiments are directed to protecting objects having sensitive electronics from high power radio frequency (HPRF) interference signals. An object with the sensitive electronics has a thin film applied to the object's outer surface. The thin film conforms to the object's outer surface contours. The thin film has a substrate foundation, an array in intimate adjacent contact with the substrate foundation. The array has a plurality of radio frequency (RF) witness films overlain on the substrate foundation. Each RF witness film in the plurality of RF witness films is equally-spaced from adjacent RF witness films.

Sense and react tunable radio frequency systems

The embodiments are directed to radio frequency witness films. The embodiments include a unit cell in a three-dimensional coordinate frame of reference defined by an x-axis, a y-axis, and a z-axis. The unit cell is centered at an origin of the three-dimensional coordinate frame of reference. The unit cell includes a substrate, a first conductive layer, a dielectric layer, and a second conductive layer. The second conductive layer has at least two microstrip extensions that are perpendicular to each other in the x-y plane.

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Ridgecrest, CA, United States of America

Christopher G Yelton