Abstract: A tapered notch antenna structural panel array that can serve both as a structural member and an antenna is made from an injection molded monolithic three dimensional grid of thermoplastic material. The notch and feed line is in the form of microstrip or stripline circuitry formed to the sidewalls of adjacent cells. Dielectric sheets of material are bonded to the upper and lower edges of the grid. Interconnect circuitry on the antenna ground plane is supported by the sheet bonded to the lower edge and connected to the antenna circuitry of the sidewalls.

Abstract: A tapered notch antenna structural panel array that can serve both as a structural member and an antenna is made from an injection molded monolithic three dimensional grid of thermoplastic material. The notch and feed line are in the form of microstrip or stripline circuitry formed to the sidewalls of adjacent cells. Dielectric sheets of material are bonded to the upper and lower edges of the grid. Interconnect circuitry on the antenna ground plane is supported by the sheet bonded to the lower edge and connected to the antenna circuitry of the sidewalls.

Abstract: A window which is transparent to visible light and/or infrared radiation but which absorbs radio frequency energy. The window has a at least two layers of dielectric material separated by a conductor and backed with another conductor. Each layer of the window is selected to be transparent to visible light and/or infrared radiation. The window functions to absorb RF energy in a manner similar to a Jaumann absorber, with the exception that the backing conductor need not be a short circuit. The window is constructed of known window materials, such as glass and plastic, with the conductors being a gold film or indium-tin oxide.