Demonstration of High-Power X-Band Oscillation in p+/n-/n+ 4H-SiC IMPATT Diodes with Guard-Ring Termination

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Abstract:

We fabricated a p+/n-/n+ 4H-SiC IMPATT diode with guard-ring termination. The p+ - layer and the guard-ring were formed by ion implantation. The diode showed abrupt avalanche breakdown characteristics and we obtained a peak output power of 1.8 W at 11.93 GHz, which is the highest peak output power ever for the SiC IMPATT diodes in X-band.

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Periodical:

Materials Science Forum (Volumes 483-485)

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981-984

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Online since:

May 2005

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