High-precision tuning screw rod device
A tuning screw, high-precision technology, used in waveguide-type devices, electrical components, circuits, etc., can solve the problems of RF signal leakage, poor product indicators, unstable performance, etc., to stabilize product performance, increase fit, and improve product quality The effect of the indicator
Inactive Publication Date: 2016-07-20
迈特通信设备(苏州)有限公司
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Problems solved by technology
The traditional filter tuning screw adopts the nut locking method to prevent the leakage of the RF signal of the filter, but in the process of realizing the work, this method affects the filter to change the product frequency by rotating the tuning screw instead of nut locking, the tuning screw and the thread Serious RF signal leakage between holes will lead to poor product specifications and unstable performance
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[0025] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. to limit the scope of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts fall within the protection scope of the present invention.
[0026] see figure 1 , a high-precision tuning screw device of the present invention, including a screw body 1 and a threaded hole 2 matched with it, the threaded hole 2 is set on the hole platform 3, and the surface of the screw body 1 that matches the threaded hole 2 is coated There is a conductive grease coating 4, and the raw material of the conductive grease coating 4 is a uniform mixture of greas...
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The invention relates to a high-precision tuning screw rod device, which comprises a screw rod body and a threaded hole matched with the screw rod body, wherein the threaded hole is arranged on a hole bearing platform; the surface where the screw rod body and the threaded hole are fit is coated with a conductive grease coating layer; and the raw material of the conductive grease coating layer is a uniform mixture formed by oil, silver powder and copper powder. Through coating the surface where the screw rod body and the threaded hole are fit with the conductive grease coating layer made of materials mixed by the oil, the silver powder and the copper powder in a certain ratio, the fitness of the contact surface of the two is enhanced, the screw rod body and the threaded hole can be timely matched, radio frequency signal leakage between the screw rod body and the threaded hole can be effectively reduced, the product indexes are improved, and the product performance is stabilized.
Description
technical field [0001] The invention belongs to the technical field of mechanical processing, and in particular relates to a high-precision tuning screw device. Background technique [0002] Microwave filters are components used to filter or separate different microwave frequency signals. Microwave filters are divided into four types: low-pass, high-pass, band-pass and band-stop. Their structures, parameters and design methods vary depending on the operating frequency and bandwidth , Power capacity and other indicators have significant differences. In the microwave circuit system, the performance of the filter has a great influence on the performance index of the circuit, so how to design a filter with high performance is of great significance to the design of the microwave circuit system. [0003] Microwave devices can be divided into microwave oscillators, power amplifiers, mixers, detectors, microwave antennas, microwave transmission lines, etc. according to their functi...
Claims
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IPC IPC(8): H01P1/20C09D191/00C09D183/04C09D7/12
CPCH01P1/20C08K3/08C08K2003/0806C08K2003/085C09D7/61C09D183/04C09D191/00
Inventor 韩元清
Owner 迈特通信设备(苏州)有限公司