Laser tuning machine for dielectric filter

Abstract

The invention discloses a laser tuning machine for a dielectric filter. The laser tuning machine includes a frame, an XYZ gantry structure motion assembly, a laser ablation assembly, a locator, a vector network analyzer, an analysis controller and an adjustable platform. The laser tuning machine is advantaged in that the XYZ gantry structure motion assembly is utilized, and the structure is simple; the laser ablation assembly adopts the laser to remove metal coating from the dielectric filter to change frequency or coupling to achieve tuning; a vector network analyzer is set to measure gas andelectricity index parameters of the dielectric filter, and the parameters are sent to the analysis controller; the gas and electricity parameters of the dielectric filter are analyzed by the analysiscontroller, the ablation position and the ablation amount are controlled by the laser ablation assembly, and high debugging efficiency and low cost are achieved.

Description

technical field [0001] The invention relates to the technical field of filter production equipment, in particular to a laser tuner for a dielectric filter. Background technique [0002] The filter has always played a very important role in the processing of electromagnetic signals. It plays the role of allowing useful signals to pass through without attenuation as much as possible and attenuating useless signals as much as possible. Filters are widely used in radio frequency, microwave and other communication industries. The traditional coaxial cavity metal filter technology is becoming more and more mature, and it is widely used. With the rapid development of the microwave communication industry, the demand for products with high peak power, low loss and miniaturization is becoming more and more extensive. Dielectric filters are often designed and manufactured with ceramic dielectric materials featuring low loss, high dielectric constant, small thermal expansion coefficien...

AI Technical Summary

Problems solved by technology

[0003] The surface of the dielectric filter is metal coating. Removing a certain area of ​​metal coating or dielectric material on the surface at a specific position can change the frequency or coupling of the filter, which can compensate for manufacturing errors and debug the filter; debugging of the existing dielectric filter , using grinding to remove the metal coating to change the frequency or coupling to play a tuning role; this method has low efficiency, high cost, and complicated debugging equipment

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