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Method of manufacturing component for RF filter, component, and RF filter

A filter and component technology, applied in waveguide devices, electrical components, circuits, etc., can solve problems such as filter performance degradation, achieve the effects of reducing intermodulation problems, good manufacturing technical characteristics, and high productivity

Inactive Publication Date: 2018-03-27
PRISM MICROWAVE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Such irregularities in turn cause intermodulation problems, i.e. IM problems or PIM (Passive Intermodulation) problems, which degrade filter performance by degrading the maintenance of the desired frequency response

Method used

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  • Method of manufacturing component for RF filter, component, and RF filter
  • Method of manufacturing component for RF filter, component, and RF filter
  • Method of manufacturing component for RF filter, component, and RF filter

Examples

Experimental program
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Embodiment Construction

[0017] First, filter F and some of its components will be discussed.

[0018] Referring to the drawings, an RF filter F is disclosed which may be used in connection or coupling with RF equipment such as a transmitter, receiver, transceiver or amplifier. For example, the RF device may be a radio unit of a base station in a cellular radio network or a module thereof.

[0019] The filter F has signal ports SP1, SP2 to which it can be connected by a cable connecting the filter F with an antenna and eg a transceiver. exist image 3 A short cable through signal ports SP1, SP2 shown in , can connect the filter to a coaxial connector mounted on the wall of an outer housing (not shown) surrounding the filter.

[0020] The filter comprises a housing structure C having a wall structure W, a bottom B below the wall structure, and a cover T on top of the wall structure. The housing structure C, ie its wall structure W, bottom B and cover T, is made of a conductive metal such as copper o...

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Abstract

The invention relates to a method of manufacturing a component for an RF filter, to a component for an RF filter, and to an RF filter. The method comprises forming from a sheet metal piece a component(TL, B, T) comprising an edge (ED1, ED2, TLE, HC1, HC2, HES) in the component. In the invention, in order to reduce intermodulation problems, the edge of the component is treated by etching.

Description

Background of the invention [0001] The present invention relates to a method of manufacturing a component for an RF filter, a component and an RF filter. [0002] RF filters, ie radio frequency filters, are used in conjunction with RF equipment such as transmitters, receivers or transceivers for base stations of mobile telephone networks, eg especially in amplifiers in RF equipment as filtering and adaptation circuits. [0003] A resonator-type filter includes a housing structure with one or more compartments whose shape is defined by a wall structure of the housing structure. [0004] Typically, the compartments of the housing structure may contain inner conductors called resonators or resonator pins, which are attached to the bottom of the compartment or cavity, the common structure acting as a coaxial resonator, where the inner conductor or resonator The organ shares a common axis, ie, is coaxial, with the surrounding compartments or cavities. The compartments in the meta...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01P11/00H01P1/205C23F1/00C23F4/00
Inventor 泰罗·凯马若宁于尔基·塔帕尼马尔科·马塔
Owner PRISM MICROWAVE
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