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A noise performance analytical model considering shot noise and velocity noise was proposed for TWT electron gun. Simulations show that electron beam conformations and velocity distributions can be influenced apparently by the noises. And current & velocity fluctuations were simulated, with equivalent distributed noise impedances calculated from it. Starting from structure and operation parameters...
The thermal condition of slow-wave structure is very important to the normal and stable work of the space traveling wave tube. This paper theoretically analyzes dynamic response of helical slow-wave structure, and simulates it with the help of ANSYS., The dynamic response of temperature under different pulse duration and duty cycle is acquired through analysis and simulation.
The paper describes simulation result of traveling wave tube(TWT) body temperature, and establishes a temperature measurement system based on the fiber Bragg grating(FBG) sensor array. By quasi-distributed FBG sensing, the system can measure TWT body temperature distribution accurately.
In order to apply the traveling wave tubes (TWTs) in the active phased array radar system, new mini-TWT, i.e., multiple electron beam helix TWT (MBTWT) is studied. It is made by putting 3 helixes and electron beams into one metal tube and one PPM focus system. They have common electron gun and collector. The electron gun has a common heater and 3 emitting cathode heads which produce 3 electron beams...
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