Title :
Cooling of the slow space-charge wave with application to the traveling-wave tube
Author_Institution :
Hughes Research Laboratories, Malibu, Calif.
Abstract :
Coupled-mode theory has been used to demonstrate that the inclusion of higher order mixing products does not seriously affect the performance of the space-charge-wave noise exchanger recently proposed by Sturrock[3]. Estimates of the effects of the pump modulation (necessarily induced on the electron stream in the exchanger) on the gain and noise performance of a traveling-wave amplifier are obtained. Noise temperatures on the order of 100 °K are indicated if the cathode temperature is assumed to be 1000 °K.
Keywords :
Cathodes; Circuit noise; Cooling; Coupling circuits; Differential equations; Electron devices; Electron tubes; Electrons; Equations; Frequency; Mutual coupling; Senior members; Temperature;
Journal_Title :
Electron Devices, IRE Transactions on
DOI :
10.1109/T-ED.1962.15018
