Corning Incorporated
UTILIZING A FRESNEL ZONE PLATE LENS TO AMPLIFY A MICROWAVE SIGNAL ATTENUATED BY A MICROWAVE-REFLECTING WINDOW

Abstract:

A system includes a window and a microwave amplifier positioned proximate the window. The window has a low-E coating. The microwave amplifier includes a substrate and multiple concentric rings of material that form a Fresnel zone plate lens. The concentric rings are attached to the substrate. The Fresnel zone plate lens is configured to focus an attenuated microwave signal, which is attenuated by the low-E coating of the window, on an antenna, which may (1) amplify the attenuated microwave signal by at least 20 dB and/or (2) provide an image at the antenna such that an area of the Fresnel zone plate lens divided by an area of the image is at least 100 and/or such that the area of the image is approximately equal to an area of the antenna. The attenuated microwave signal has a designated frequency in a range of frequencies from 6 GHz to 80 GHz.