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Frequency tuneable filter using a sliding system

一种滤波器、频率的技术，应用在可调滤波器领域，能够解决调节困难、动作困难等问题，达到宽泛调节范围、确保调节范围、稳定滑动动作的效果

Inactive Publication Date: 2011-01-12
ACE TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0018] The existing filter has a structure that can be adjusted by adjusting the screw, but it is difficult for the user to adjust the characteristics of the filter by using the adjusting screw
In fact, only the filter manufacturer performs the adjustment operation with the adjustment bolts in order to adjust the characteristics more finely after the filter is manufactured, so it is difficult for the user to adjust

Method used

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  • Frequency tuneable filter using a sliding system
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  • Frequency tuneable filter using a sliding system

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Embodiment Construction

[0047] Hereinafter, preferred embodiments of the sliding-type frequency tunable filter according to the present invention will be described in detail with reference to the accompanying drawings.

[0048] Figure 4 It is a diagram showing an exploded perspective view of a sliding frequency tunable filter according to an embodiment of the present invention.

[0049] refer to Figure 4 , a frequency tunable filter according to an embodiment of the present invention includes a housing 400, a main cover 402, a sliding part 404, a sub cover 406, a plurality of cavities 408, a plurality of resonators 410, an input connector 412 and an output connection device 414.

[0050] The housing 400 is used to protect components such as resonators inside the filter, and has the function of shielding electromagnetic waves. As the case 400 , a case in which a base material is formed of an aluminum material and gold is plated on the base material can be used. Generally, RF devices such as filt...

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PUM

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Abstract

The invention concerns a frequency-tuneable filter employing a sliding system. The filter comprises: a housing defining a plurality of cavities by means of partition walls; a subsidiary cover which is joined to the upper part of the housing and which is formed with a guide recess; at least one sliding member provided in the guide recess; a main cover which is joined to the upper part of the subsidiary cover; a resonator which is accommodated in the cavity; and at least one tuning element which is joined to the bottom part of the sliding member and which is inserted on the inside of the housing. Tuning is carried out by means of the sliding action of the sliding member, and at least one of the side surfaces of the sliding member is joined to a first guide member which makes contact with the side surface of the guide recess and which guides the sliding action. When the filter is employed, the user can easily perform the tuning operation and the sliding action can be carried out in a more stable fashion, and it is possible to adjust the height of the tuning element for tuning against the resonator thereby ensuring a wide tuning range.

Description

technical field [0001] The present invention relates to a filter, in particular to an adjustable filter which can change filter characteristics such as the center frequency and bandwidth of the filter according to a sliding manner. Background technique [0002] A filter is a device that passes only a signal of a specific frequency band among input frequency signals, and is embodied in various ways. The passable frequency band of the RF filter is determined by the inductance and capacitance components of the filter, and the operation of adjusting the passable frequency band of the filter is called adjustment. [0003] In a communication system like a mobile communication system, an operator may allocate an arbitrary frequency band, and then divide the allocated frequency band into several channels for use. In the past, communication carriers separately manufactured and used filters corresponding to each frequency band. [0004] However, due to sudden changes in the communic...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01P1/20
CPCH01P1/2053H01P1/20
Inventor 朴光璿李硕祐徐在玉千东完
Owner ACE TECH
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