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travelling wave tubes are broad band tubes and do not use cavity resonators unlike klystron which actually are narrow band tubes using cavities . TWT makes use of distributed interaction between an electron beam and travelling wave. to prolong the interaction between the RF and the electron beam , both of them travel with same speed in same direction . where, RF travels with speed of light and the electron beam travels with that of anode volatage . So , to slow the RF speed , helix arrangements are placed inbetween these tubes .
What else can I help you with?
What has the author Rudolf Kompfner written?
Rudolf Kompfner has written: 'The invention of the traveling-wave tube' -- subject(s): Traveling-wave tubes
How do you tell what the frequency of a traveling wave tube?
The frequency of a traveling wave tube can be determined by either the input frequency of the RF signal being amplified or by the resonant frequency of the circuit within the tube. The frequency response of the tube can vary depending on its design and operating conditions.
Is TWT is a pulsed device?
Yes, a traveling wave tube or TWT is a pulsed device.
What type of microwave tube amplifier used an axial magnetic field and radial magnetic field?
That would be a TWT amplifier (traveling wave tube).
In what direction is the wave traveling?
The wave is traveling in the direction indicated by its movement.
In which direction is the wave traveling?
The wave is traveling in the direction indicated by its movement.
What is a wave tube?
A tubing wave is one that produces a tube, a tube is when the lip of the wave breaks in a circular form, and does it far from the face of the wave, letting a surfer enter it and being able to ride it.
What is the relationship between the two velocities in a traveling wave?
In a traveling wave, the relationship between the two velocities is that the wave velocity is equal to the product of the wavelength and the frequency of the wave.
What is the difference between a standing wave and a traveling wave?
A standing wave is a wave that appears to be stationary and does not move through a medium, while a traveling wave is a wave that moves through a medium from one point to another.
What English are you visiting if you are traveling on the tube?
If you are traveling on the tube, you are likely visiting London, where the tube is a common nickname for the London Underground, the city's underground subway system.
Where would a wave be located if there was no energy traveling through it?
A wave would be located at its starting point if there was no energy traveling through it.
How does a backward wave oscillator work?
The BACKWARD-WAVE OSCILLATOR (BWO) is a microwave-frequency, velocity-modulated tube that operates on the same principle as the Traveling Wave Tube. However, a traveling wave that moves from the electron gun end of the tube toward the collector is not used in the BWO. Instead, the BWO extracts energy from the electron beam by using a backward wave that travels from the collector toward the electron gun(cathode). Otherwise, the electron bunching action and energy extraction from the electron beam is very similar to the actions in a Travelling Wave Tube. The typical BWO is constructed from a folded transmission line or waveguide that winds back and forth across the path of the electron beam, as shown in figure. The folded waveguide in the illustration serves the same purpose as the helix in a Traveling Wave Tube(TWT). The fixed spacing of the folded waveguide limits the bandwidth of the BWO. Since the frequency of a given waveguide is constant, the frequency of the BWO is controlled by the transit time of the electron beam. The transit time is controlled by the collector potential. Thus, the output frequency can be changed by varying the collector voltage, which is a definite advantage. As in the TWT, the electron beam in the BWO is focused by a magnet placed around the body of the tube.
