Automatic tuning method and system for cavity filter

A cavity filter and automatic tuning technology, which is applied in the field of filters, can solve problems such as difficult automation system implementation, time-consuming and labor-intensive work, and high requirements for worker experience.

Active Publication Date: 2015-05-27
SHENZHEN INST OF ADVANCED TECH CHINESE ACAD OF SCI
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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.

Method used

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  • Automatic tuning method and system for cavity filter
  • Automatic tuning method and system for cavity filter
  • Automatic tuning method and system for cavity filter

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Embodiment Construction

[0026] A preferred implementation of an automatic tuning method for a cavity filter will be described below with reference to the accompanying drawings.

[0027] Please refer to figure 1 , an automatic tuning method for a cavity filter, comprising the following steps:

[0028] S110, detecting the type of the cavity filter. In this step, the marks provided on the cavity filter can be recognized by means of machine vision, so as to identify different types of cavity filters, so as to facilitate subsequent calling of unused tuning parameters, and then perform tuning actions.

[0029] S120. Acquire the current tuning rod height and the filter waveform of the filter. The current height of the tuning rods is obtained by manual input, and the filtered waveform corresponding to the current height of each tuning rod is detected by a vector network analyzer.

[0030] S130. Invoke preset tuning parameters matched with the cavity filter, where the preset tuning parameters include a sta...

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Abstract

The invention relates to an automatic tuning method and system for a cavity filter. The automatic tuning method comprises the following steps: controlling a mechanical execution mechanism to execute a tuning action; comparing an actual filtration waveform with a target filtration waveform in preset tuning parameters; if the actual filtration waveform is in line with the requirements, completing the tuning; if the actual filtration waveform is not in line with the requirements, repeatedly executing the tuning action, selecting a series of tuning rod heights with the actual filtration waveforms which are close to the target filtration waveform from the tuning action which is executed repeatedly, and obtaining the optimal tuning rod height by adopting a particle optimization algorithm, wherein the actual filtration waveform corresponding to the optimal tuning rod height is in line with the requirements; controlling the mechanical execution mechanism to execute the tuning action according to the optimal tuning rod height, and adding the optimal tuning rod height and the corresponding actual filtration waveform into the preset tuning parameters. Therefore, the system can perform automated tuning, continuously update the tuning parameters in the tuning process and be suitable for tuning small-batch and multi-variety filters.

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...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01P11/00
Inventor 欧勇盛江国来胡建兵辛俊波陈阳戴大伟刘乐天刘琴彭安思徐扬生
Owner SHENZHEN INST OF ADVANCED TECH CHINESE ACAD OF SCI
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