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DARPA Reaching Challenging RF Frequencies With Vacuum Electronic Devices

The Defense Advanced Research Projects Agency (DARPA) is making progress toward reaching a challenging portion of the radio frequency (RF) spectrum with a pair of programs involving vacuum electronic devices that could improve a host of radar, security and imaging programs. One program, known as High Frequency Integrated Vacuum Electronics (HiFIVE), has a goal of developing an integrated, microfabricated vacuum electronic high-power amplifier circuit for use in high-bandwidth, high-power transmitters, according to DARPA. The program will demonstrate operation of such…

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