Rotation type adjustable step attenuator, preparing technique, and application

An attenuator, rotary technology, used in waveguide-type devices, electrical components, circuits, etc., can solve problems such as instability, no attenuation value, and inconvenience in production

Inactive Publication Date: 2007-12-26
田获
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] 2. Variable attenuator
[0006] Fixed attenuators have the advantages of clear and intuitive attenuation values ​​and stable values. However, an attenuator can only have one definite attenuation value. If it wants to cover all commonly used attenuation values ​​(such as 0 to 15dB), it must have 16 different values. The attenuator, which causes inconvenience in production, sometimes cannot find the required attenuation value because there are not eno

Method used

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  • Rotation type adjustable step attenuator, preparing technique, and application
  • Rotation type adjustable step attenuator, preparing technique, and application
  • Rotation type adjustable step attenuator, preparing technique, and application

Examples

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Embodiment Construction

[0021] Below in conjunction with accompanying drawing and the embodiment that accompanying drawing provides this product is described further:

[0022] A) in Fig. 1 is the structure diagram of the product of the present invention, 1 is the rotating shaft, 2 is the circlip, 3 is the positioning plate of the rotating shaft, 4 is the positioning steel ball, 5 is the positioning spring, 6 is the upper printing plate, and 7 is the spring thimble , 8 is the pin, 9 is the lower printing plate, 10 is the shell, and 11 is the positioning groove of the shell. The waist-shaped printing plate positioning groove (12) on the rotating shaft (1) is used to embed the upper printing plate. A positioning steel ball (4) is respectively embedded on both sides of the spring (5) on the rotating shaft (1), and when the rotating shaft (1) is rotated, the rotating shaft positioning and rotating adjustment constituted by the cooperation of the spring and the steel ball with the 16-position positioning g...

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Abstract

Characters of the attenuator are that positional mechanical structure is installed on a rotating shaft; right part of the rotating shaft is sheathed by shell coaxially; in cavity of shell at left part, up printed plate passing through axle center is connected to 0-15dB resistance attenuation network (RAN) installed according to certain angle along radius direction evenly; pins and spring nose spikes are installed on the low printed plate; nose spikes are contacted to bonding pad of electrical contacts on bottom of RAN on the up printed plate. When handle is rotated, each step of attenuation value is led out from three contacts of spring nose spikes so as to form 0-15dB sixteen different attenuation values. Fabricating procedures include: making dies of shell and rotating shaft; producing plastic parts; and assembling parts. Features are: novel structure, small size, complete functions etc. The attenuator is applicable to wire broadcasting and TV, communication network system etc.

Description

[technical field] [0001] The invention relates to a passive attenuator, in particular to a rotary adjustable step attenuator and its preparation process and application. [Background technique] [0002] Passive attenuators commonly used in CATV systems can generally be divided into two types: [0003] 1. Fixed attenuator; [0004] 2. Variable attenuator. [0005] The reason why passive attenuators are widely and widely used is that compared with active attenuators (active attenuators usually use PIN tubes or ICs), they have low insertion loss, good impedance matching, simple operation, and no external The hardware control circuit or software control program is easier to replace, there is no nonlinear distortion when the signal is large, and the price is lower. [0006] Fixed attenuators have the advantages of clear and intuitive attenuation values ​​and stable values. However, an attenuator can only have one definite attenuation value. If it wants to cover all commonly use...

Claims

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Application Information

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IPC IPC(8): H01P1/22
Inventor 田获陈积文
Owner 田获
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