Raytheon Company

The Aerospace Corporation

John S Williams

Kuan M Lee

Jon Victor Osborn

James P Nokes

Dhruv N Patel

Loc B Chau

Alan R Hopkins

Gary N Harper

Michael A Tockstein

A radio-frequency transparent window having internal conduits for the passage of cooling fluid is configured for simulating a highly uniform thermal environment for testing a device intended for use in space. The device to be tested is placed within a chamber in which a vacuum condition is maintained by a radio-frequency transparent pressure window under a pressure seal. Within the chamber, the thermal window is positioned adjacent, but not in contact with, the pressure window. A radio frequency signal is capable of passing directly through both the thermal window and the pressure window to permit communication with the device being tested within the housing. The thermal window is not in contact with the device so there in no conduction of heat from the device. Radiant heat transfer may occur from the device to the thermal window.

Radio frequency transparent thermal window

An integrated module for an active antenna assembly is disclosed. The integrated module is switchable between a receive mode and a transmit mode and includes active components and a dual input wideband balun. The active components includes amplifiers and micro electro-mechanical system (MEMS) switches. The integrated module is adapted for positioning directly behind a radiator of an antenna array.

Compact, wide-band, integrated active module for radar and communication systems

Growing community of inventors

Palos Verdes Estates, CA, United States of America

John S Williams