A travelling wave tube having a coupled cavity slow wave structure is provided with velocity tapering to slow the speed of travel of an applied radio frequency wave at the output end of the tube so that it is maintained substantially in step with the decreasing velocity of the electron beam. Cpi mpp division warranty.
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The electron beam shown in figure 9 as red beam is velocity modulated by an rf input signal at the first resonant cavity.
Coupled cavity travelling wave tube. A major advantage of the twt over some other microwave tubes is its ability to amplify a wide range of frequencies a wide bandwidth. Coupled cavity travelling wave tubes cctwts our cctwts are ideal for compact reliable high performance multi function radars. The resonant cavities are coupled together with a transmission line.
We offer coupled cavity and helix twt s from a range of manufacturers travelling wave tube amplifiers twta and high voltage power supplies for twt s hvps. Travelling wave tubes are still the best technology to produce high power microwaves over a broad frequency range. Coupled cavity twt in which the radio wave interacts with the beam in a series of cavity resonators through which the beam passes.
Coupled cavity traveling wave tubes operating instructions. The coupled cavity twt uses a slow wave structure of a series of cavities coupled to one another. Cpi mpp division operating hazards sheet.
What is the abbreviation for coupled cavity traveling wave tube. What does cctwt stand for. Coupled cavity traveling wave tubes primarily used in ground based or airborne radar applications l3 electron devices coupled cavity twts are available at power levels up to 150 kw peak 5 kw average in x ku ka bands.
Designed for military environments rugged metalceramic construction. Our space qualified twts products range from l band to v band with output powers from 5 to more than 250 watts. In the defense market l3 edd has delivered over 20000 twts and is recognized as the leading supplier of high power coupled cavity twts over the frequency range from c band to q band.
The helix twt however has no particular bandwidth limitations and for all practical purposes an octave bandwidth 100 percent is attainable. Coupled cavity twts cw products. They have high gain high efficiency shadow grid modulation and ppm periodic permanent magnet focusing.
Traveling wave tubes cavities have bandwidth limitations the coupled cavity twt also is bandwidth limited to typically 10 to 20 percent. Cctwt abbreviation stands for coupled cavity traveling wave tube. These function as narrowband power amplifiers.
Return product form for coupled cavity traveling wave tubes. Traveling wave tubes twts l3 edd has delivered more than 4700 space twts to customers worldwide.
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