A rotary step attenuator and its manufacturing process
A step attenuator and rotary technology, applied to waveguide devices, electrical components, circuits, etc., can solve the problems of low processing efficiency, incapable of mass production, and many parts, and achieve reasonable mechanical structure design and convenient on-site debugging , full-featured effects
A step attenuator and rotary technology, applied to waveguide devices, electrical components, circuits, etc., can solve the problems of low processing efficiency, incapable of mass production, and many parts, and achieve reasonable mechanical structure design and convenient on-site debugging , full-featured effects
CN103427142BInactive Publication Date: 2015-09-23卞以勤 +1
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[0032] The present invention will be further described below in conjunction with accompanying drawing, and the structure and principle of this device are very clear to those skilled in the art.
[0033] figure 1 It is the overall structure diagram of the product of the present invention, including the bottom printed board, three-reed connector assembly, cover plate, reed, upper rotating printed board, end gear with shaft, end face positioning reed and housing bushing, when rotating When the handle is used, the positioning cooperation between the end face positioning reed 7 and the shaft end gear 6 can make the shaft end gear 6 produce a precise circumferential shift function;
[0034] figure 2 It is an assembly diagram of the three-reed connector assembly in the present invention, relying on the positioning holes 9 and 10 in the reed 4 and the positioning shafts 11 and 12 on the connector seat 2 to precisely match respectively, the precise positioning of the reed can be guar...
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The invention relates to the technical art of passive attenuators and specifically relates to a rotation type step attenuator and a production process thereof. The rotation type step attenuator comprises a bottom printed board, a three-reed connector assembly, an upper rotation printed board, a belt shaft face gear, an end face positioning reed and a shell shaft sleeve and is characterized in that the three-reed connector assembly is arranged on the bottom printed board, the upper rotation printed board is disposed at the top of the bottom printed board, a reed at the top of the three-reed connector assembly contacts with a resistance attenuation network electrical contact spot welding disk at the bottom of the upper rotation printed board, the belt shaft face gear is arranged at the top of the upper rotation printed board, a rotation shaft is mounted at the bottom of the belt shaft face gear, and the bottom of the rotation shaft is inserted into round holes of the upper rotation printed board and the bottom printed board. Compared with rotation type step attenuators in prior art, the rotation type step attenuator has the advantages that sixteen kinds of attenuation values are integrated in one attenuator, so that great convenience is brought to production and field debugging of devices; and the rotation type step attenuator has the advantages of being novel in structure, complete in function, small in size, reasonable in mechanical structure design, convenient to process, and applicable to mass production.
Description
[technical field] [0001] The invention relates to the technical field of passive attenuators, in particular to a rotary 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 integrated circuits), they have small insertion loss, good impedance matching, simple operation, No additional hardware control circuit or software control program is needed, easy to replace, no nonlinear distortion when the signal is large, and the price is low. [0006] Fixed attenuators have the advantages of clear and intuitive attenuation values and stable values, but an attenuator can only have one definite attenuation value. If you want to cover a...
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Patent Timeline
23 Sep 2015
Publication
CN103427142B
- IPC
- H01P1/22; H01P11/00
- Inventors
- 卞以勤; 田获