Device for measuring high-frequency characteristic of helix traveling wave tube

Abstract

The invention discloses a high-frequency characteristic measuring device of a spiral wave travelling tube, which is composed of a moving unit, a data acquisition unit and a centralized control unit; a control part is arranged in the centralized control unit and realizes the communication among the centralized control unit, the moving unit and the data acquisition unit. The moving unit realizes position calibration and movement during the measurement under the control of the centralized control unit, thus avoiding the error of manual calibration and improving the measuring precision; the data acquisition unit completes parameter setting and data transmission under the control of the centralized control unit, and avoids manual operation of a vector network analyzer, thus greatly improving the measuring efficiency; the centralized control unit can implement direct processing of the collected data and does not need to import the data into other software for processing. The measuring device improves the precision and efficiency of the high-frequency characteristic measurement of the spiral wave travelling tube, and solves the lower precision and efficiency problems of other traditional measuring devices.

Description

technical field [0001] The invention belongs to the technical field of microwave source devices, and relates to a high-frequency characteristic measuring device of a helical traveling wave tube. Background technique [0002] The high-frequency characteristics of the helical TWT mainly include dispersion characteristics and coupling impedance. The measurement of dispersion characteristics of helical traveling wave tube can be divided into resonance method and traveling wave method, and the traveling wave method is divided into transmission method (forward wave phase shift method) and emission method (reverse wave phase shift method). In actual measurement, because it is difficult to short-circuit the two ends of the helical slow-wave system to form a resonant system, the resonance method is often used in the dispersion characteristic measurement of the coupled cavity slow-wave system, and the helical traveling wave tube generally adopts the traveling wave method to measure th...

AI Technical Summary

Problems solved by technology

[0010] In order to solve the problems of low position calibration accuracy and low measurement efficiency of existing measuring devices, the purpose of the present invention is to disclose a high-frequency characteristic measuring device of a helical traveling wave tube.

[0013] The positive effect of the present invention is that the measurement device improves the accuracy and efficiency of the high-frequency characteristic measurement of the helical traveling wave tube through the cooperation of the motion unit, the data acquisition unit, and the central control unit, and solves the problem of the lack of accuracy of such measurement devices in the past. high and low efficiency

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