Multiband travelling wave tube of reduced length capable of high power functioning
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United States of America Patent
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Nov 19, 2002
Grant Date -
N/A
app pub date -
Jun 25, 2001
filing date -
Dec 23, 1998
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A traveling wave tube designed to operate as an amplifier within plural frequency bands, which includes a microwave line through which electrons travel and in which a signal is amplified. The microwave line includes, in succession, an input section separated from a succession of gapped output sections, each output section working within one of the operating frequency bands of the traveling wave tube. The input section, connected at one end to an input for injecting the signal to be amplified, works within a frequency band encompassing the operating frequency bands of the traveling wave tube and is intended to preamplify the signal to be amplified. The succession of output sections receives the preamplified signal, each of the output sections being intended to amplify it if the signal is at a frequency lying within its working frequency band and to let it pass through virtually without any interaction if it is at a frequency outside its working frequency band. Each of the output sections is connected at an output end to an output for extracting the preamplified signal that it has amplified. Such a traveling wave tube has a short length and is capable of operating at high power.
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