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To satisfy the requirements for a pulsed space traveling-wave tube, including high efficiency, high reliability, and miniaturization, its thermal and mechanical performance must be optimized. In this paper, an electron gun is optimized using ANSYS software with double goal methods that take both thermal and mechanical factors into consideration. Experimental result shows that the heating power of...
A simple sample and hold circuit for 6–18GHz TWT power detecting is proposed in this paper. This circuit has a simple circuit structure and long holding time. Through a combined test with TWT, the efficacy of the circuit is validated.
Microwave tubes for communication must have high reliability, high power, and a long life of 10 to 15 years. Cathode as the electric source module in microwave vacuum tubes, its reliability and life directly affect the tube's reliability and life. In this paper, electronic gun in short tubes are accelerated to evaluate the lifetime of one kind of microwave vacuum (such as traveling wave tube). In...
Optimization techniques have been used in traveling wave tubes design for the slow-wave circuit phase velocity taper and collector stages (Wilson, 2001; Chevalier et al., 2003). In the slow-wave circuit design, the objective function aims to minimize the difference between dispersions versus different frequency, and maximize the on-axis interaction impedance in a specified bandwidth. This is a double-objective...
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