Magnetron missing pulse testing method

Abstract

The invention discloses a magnetron missing pulse testing method which comprises the following steps: 1) an average value of microwave signal waveform output by a magnetron within a set time (the average time should not be less than 256) can be solved by utilizing average functions of an oscilloscope, and the average value is used as a reference signal; 2) a magnetron testing system is connected with a variable attenuator through a directional coupler, microwave signals output by the magnetron testing system are input to the variable attenuator, and signals at the output end of the variable attenuator can enable a detector to work within a linear detection area; 3) pulse signals can be obtained by enabling signals output by the variable attenuator to pass the detector, and the pulse signals are input to the oscilloscope; 4) the pulse signals are compared with reference signals within a set time, whether the pulse signals are missing pulse can be detected, and the number of the missing pulse can be calculated. The magnetron missing pulse testing method is convenient to use, flexible to operate, high in working efficiency, good in data testing consistency and capable of reflecting the missing pulse condition accurately.

Description

technical field [0001] The invention relates to a microwave signal testing method, in particular to a magnetron testing method. Background technique [0002] Leakage pulse is an important electrical performance parameter in magnetron testing. For millimeter-wave magnetrons with narrow pulse width and high repetition frequency, spectrum analyzers are usually used to test leakage pulses, and spectrum analyzers can only pass The spatial coupling method is used to collect spectral line signals. When using this method for testing, the severity of missing pulses is determined by estimating the magnitude of the dropped line with the naked eye. When the number of missing pulses is large, it is impossible to accurately measure the number of missing pulses. Therefore, using The leakage pulse test data obtained by the spectrum analyzer test method is not comprehensive, and can only qualitatively reflect the leakage pulse situation; it cannot accurately reflect the leakage pulse situati...

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Problems solved by technology

[0002] Leakage pulse is an important electrical performance parameter in magnetron testing. For millimeter-wave magnetrons with narrow pulse width and high repetition frequency, spectrum analyzers are usually used to test leakage pulses, and spectrum analyzers can only pass The spatial coupling method is used to collect spectral line signals. When using this method for testing, the severity of missing pulses is determined by estimating the magnitude of the dropped line with the naked eye. When the number of missing pulses is large, it is impossible to accurately measure the number of missing pulses. Therefore, using The leakage pulse test data obtained by the spectrum analyzer test method is not comprehensive, and can only qualitatively reflect the leakage pulse situation; it cannot accurately reflect the leakage pulse situation

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