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.