
M-Carcinotron
Backward Wave Devices
215
RF INPUT RF OUTPUT
ELECTRON
COLLECTOR
SLOW WAVE
(DELAY LINE)
STRUCTURE
ATTE N UATO R
RF
INTERACTION
SPACE
Figure
1 1-10 Crossed-field
amplifier.
ever, the electrons are forced into a curved path away from the anode. A negatively
charged
sole plate
electrode repels the electrons, forcing them into the RF interaction
space between the sole plate and the
slow wave
or
delay line
structure. When the elec-
trons reach the end of their path, they are absorbed by the
electron collector
electrode.
The RF signal is injected into the interaction space through the slow wave structure
(SWS). The purpose of the ...