Automatic tuning method and system for cavity filter

Abstract

The invention relates to an automatic tuning method and system for a cavity filter, which controls a mechanical actuator to perform a tuning action and compares the actual filtering waveform with the target filtering waveform in the preset tuning parameters. If the actual filtering waveform meets the requirements, Then the tuning is completed. If the actual filtered waveform does not meet the requirements, the tuning action is repeated, and a series of tuning rod heights whose actual filtered waveform is close to the target filtered waveform are selected from the repeated tuning actions, and the particle optimization algorithm is used to obtain the optimal The height of the tuning rod, the actual filtered waveform corresponding to the optimal tuning rod height meets the requirements; the mechanical actuator is controlled to perform the tuning action according to the optimal tuning rod height, and the optimal tuning rod height and the corresponding actual filtered waveform are added to the Into the preset tuning parameters, the system can perform automatic tuning, and the tuning parameters can be continuously updated during the tuning process, which can adapt to the tuning of small batches of filters with multiple varieties.

Description

technical field [0001] The invention relates to the technical field of filters, in particular to an automatic tuning method and system for a cavity filter. Background technique [0002] In the production process of the cavity filter, it is necessary to tune the height of multiple tuning rods on the filter to control the shape of the resonant cavity so that the filter waveform of the filter meets the design requirements. This process is called "filter tuning process". Cavity filters are mainly used in the communication field. Affected by demand, they are typical small-batch and multi-variety products. The "filter tuning process" is also a typical small-batch and multi-variety complex process, which is difficult to realize with an automated system. Traditional production mainly adopts manual tuning, which requires high experience of workers and is time-consuming and labor-intensive. Contents of the invention [0003] Based on this, it is necessary to provide an automatic t...

AI Technical Summary

Problems solved by technology

Cavity filters are mainly used in the communication field and are affected by demand. They are typical small-batch and multi-variety products. The "filter tuning process" is also a typical small-batch and multi-variety complex process, which is difficult to realize with an automated system.

Traditional production mainly adopts manual tuning, which requires high experience of workers and is time-consuming and labor-intensive.

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