Amplifiers – Parametric amplifiers – Semiconductor type
Patent
1982-01-29
1985-07-16
Moskowitz, Nelson
Amplifiers
Parametric amplifiers
Semiconductor type
372 2, H01S 309
Patent
active
045299420
ABSTRACT:
In the interest of increased efficiency and gain of free-electron amplifier devices, means are provided for retarding electromagnetic radiation in such devices. This permits an electron beam pulse to catch up with a pulse of electromagnetic radiation and thus to interact repeatedly with electromagnetic radiation. Retarding means may be implemented, e.g., as one or several waveguides having suitable diameter and length; alternatively, resonant filters consisting essentially of wire meshes can be used.
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Patel Chandra K. N.
Shaw Earl D.
AT&T Bell Laboratories
Businger Peter A.
Moskowitz Nelson
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