Raytheon Company

Matthew H Peter

Kurt S Ketola

Jacques F Linder

Alan L Kovacs

A frame structure for a T/R tile module configured to transmit and receive electromagnetic radiation over a predetermined portion of the electromagnetic spectrum is provided. The frame component comprises at least one frame component formed as a single piece from a synthetic resin dielectric material. The frame component is configured to support a plurality of electrical connectors, and has a thin film coating configured to provide a ground connection and electromagnetic shield when the frame structure is incorporated into a transmit/receive module. A portion of the frame component is configured to interface with a portion of a T/R module when the frame component is incorporated into the T/R module, and the synthetic resin dielectric material provides the frame component with a range of compressibility that enables the frame component to provide the module with an effective ground connection over that range of compressibility.

Dielectric interconnect frame incorporating EMI shield and hydrogen absorber for tile T/R modules

A thin film hydrogen getter and EMI shielding are provided for protecting GaAs circuitry sealed in an hermetic package. The thin film getter comprises a multilayer metal film that is deposited by vacuum evaporation techniques onto a conductive metal, such as aluminum or copper, that serves as the EMI shielding. The conductive layer is first formed on an interior surface. The multilayer hydrogen getter film comprises (1) a titanium film and (2) a palladium film that is deposited on the titanium film. Both the titanium and the palladium are deposited during the same coating process run, thereby preventing the titanium from being oxidized. The palladium continues to prevent the titanium from being oxidized once the getter is exposed to the atmosphere. However, hydrogen is easily able to diffuse through the palladium into the titanium where it is chemically bound up, since palladium is highly permeable to hydrogen.

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Los Angeles, CA, United States of America

Matthew H Peter