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DEVELOPMENT OF LOW NOISE TRAVELING-WAVE TUBES. PHASE II. ENVIRONMENTALIZATION.
Monthly status letter no. 16, 1 May-1 June 63,
MICROWAVE ELECTRONICS PALO ALTO CALIF
Pagination or Media Count:
Efforts were continued on the development and environmentalization of low noise traveling wave tubes for operation at L-, S-, C- and X-bands. The most significant progress was obtained at X-band. Two tubes, one with a maximum noise figure of 10.1 db and one with a maximum noise figure of less than 10 db, have passed temper ature, altitude, vibration, and shock tests and were being made ready for shipment at the end of the period. The results at L-, S-, and C bands were not as encouraging as at X-band. The S-band processing problems continued to prevent the completion of tubes for shipment and for the final environmental and life tests. The C-band vacuum envelopes, which had performed well in the prototype package during the previous period, failed to pass preliminary tests when installed in the final package. The L-band environmentalization was hampered by the same problems that have slowed the S-band effort. Author
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