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Variable attenuator device

An attenuator and variable technology, applied in waveguide-type devices, electrical components, circuits, etc., can solve problems such as insufficient grounding, slippage of worm gears and worms, affecting the RF characteristics of attenuators, power dissipation, etc.

Inactive Publication Date: 2013-03-27
阎 跃军
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The inventor submitted the invention patent of the variable attenuator, the invention patent application number is 201210139146.5. Can not continue to rotate with it, the teeth on the worm will damage the teeth of the worm gear, and when the worm rotates in the opposite direction, it will not be able to drive the worm wheel to rotate with it
In addition, insufficient grounding is also encountered, which affects the radio frequency characteristics of the attenuator and the problem of power dissipation

Method used

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Embodiment Construction

[0030] see Picture 1-1 It is a top structural schematic diagram of the turbine of the variable attenuator device of the present invention. The variable attenuator device includes: a substrate, an attenuator composed of film resistors on the substrate, two signal terminals and a ground terminal of the attenuator, a worm wheel, a worm, a housing and a limiting cylinder in the housing, The variable attenuator device also includes at least one conductive rubber, a radial part of the conductive rubber is horizontally embedded in the groove at the bottom of the worm wheel, and the conductive rubber is respectively connected to the series diaphragm resistor and the parallel diaphragm of the attenuator The resistors are in contact with each other, and the worm wheel is driven by turning the worm, and then the conductive rubber is driven to move, thereby changing the resistance values ​​of the series diaphragm resistors and the parallel diaphragm resistors. The diameter of the worm wh...

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Abstract

The invention relates to a variable attenuator device. The variable attenuator device comprises a base body, an attenuator consisting of diaphragm resistors on the base body, two signal ends and the grounding end of the attenuator, a worm wheel, a worm, a casing and a limiting column body in the casing. The variable attenuator device further comprises at least one conductive rubber, a radial part of conductive rubber is horizontally embedded into a groove at the bottom of the worm wheel, the conductive rubber is respectively contacted with series-connected diaphragm resistors and parallel-connected diaphragm resistors, the worm rotates to drive the worm wheel and further drive the conductive rubber to move and accordingly change resistance values of the series-connected diaphragm resistors and the parallel-connected diaphragm resistors, a sliding groove is arranged at the top of the worm wheel, the limiting column body is plugged into the sliding groove, and elastic bodies are embedded into two ends of the sliding groove respectively.

Description

【Technical field】 [0001] The invention relates to an electronic and communication variable attenuator device, in particular to a variable attenuator device which can be used in various high-frequency and microwave circuits and systems. 【Background technique】 [0002] The inventor submitted the invention patent of the variable attenuator, the invention patent application number is 201210139146.5. Can not continue to rotate with it, the teeth on the worm will damage the teeth of the worm wheel, and when the worm rotates in the opposite direction, it will not be able to drive the worm wheel to rotate with it. In addition, insufficient grounding is also encountered, which affects the radio frequency characteristics of the attenuator and the problems of power dissipation. 【Content of invention】 [0003] The technical problem to be solved by the present invention is to provide a technical solution that can effectively prevent the worm gear and worm from slipping, and at the sam...

Claims

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Application Information

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IPC IPC(8): H01P1/22
Inventor 阎跃军
Owner 阎 跃军
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