Filter, resonator, and communication device

A communication device and filter technology, which is applied in the direction of resonators, waveguide devices, circuits, etc., can solve the problems that filter products do not have manufacturability, increase product cost, limit the frequency adjustment range, etc.

Pending Publication Date: 2021-06-11
COMBA RF TECH GUANGZHOU LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, at this time, since the distance H3 between the end face of the adjusting screw 160 and the screw 130 is relatively small, the filter product will not be manufacturable, and the frequency adjustment range of the

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  • Filter, resonator, and communication device
  • Filter, resonator, and communication device
  • Filter, resonator, and communication device

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Embodiment Construction

[0033] In order to make the above objects, features and advantages of the present invention more comprehensible, specific implementations of the present invention will be described in detail below in conjunction with the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. However, the present invention can be implemented in many other ways different from those described here, and those skilled in the art can make similar improvements without departing from the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.

[0034] refer to Figure 3 to Figure 5 , image 3 A schematic structural diagram of a filter according to an embodiment of the present invention is shown, Figure 4 It shows a schematic cross-sectional structural diagram of a metal resonant cavity 210 of a filter provided with a resonato...

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Abstract

The invention relates to a filter, a resonator and a communication device. According to the invention, in a process of reducing the temperature drift of the filter by optimizing the height dimension h1 of a metal resonance rod and the height dimension h2 of a boss, an adjusting screw rod is not limited by the resonator and the boss in the process of adjusting the position up and down, that is, in the process of reducing the height h1 of the metal resonance rod, the distance between the metal resonance rod and the top face of the boss in a traditional product does not need to be considered, and the height h1 of the metal resonance rod can be flexibly set according to actual requirements, so that the adjustable range is large, the height h2 of the boss can also be flexibly set according to actual requirements, the adjustable range is large, and the temperature drift of the product can be controlled to be within a preset range; and in order to reduce the temperature drift of the filter, the temperature drift of the filter can be controlled to be in a preset range by selecting an iron material with lower cost instead of adopting a copper material with higher cost, so that the product cost can be reduced at the same time.

Description

technical field [0001] The invention relates to the technical field of communication devices, in particular to a filter, a resonator and a communication device. Background technique [0002] With the rapid development of communication systems entering the 5G era, the use of low frequency 700MHz, there are multiple commercial frequency bands within 100MHz-960MHz, which requires considerable suppression between each frequency band, which puts forward requirements for filter suppression. Especially in high and low temperature conditions, it is required that the suppression does not deteriorate. [0003] see figure 1 , figure 1 A schematic structural diagram of a conventional filter is shown. The traditional filter includes a metal resonator 110, a boss 120 arranged on the bottom wall of the metal resonator 110, a metal resonator 140 fixed on the boss 120 by screws 130, and a cover set on the metal resonator 110. The mouth cover plate 150 and the adjusting screw 160 installe...

Claims

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Application Information

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IPC IPC(8): H01P1/207H01P7/06
CPCH01P1/207H01P7/06
Inventor 谢懿非黄友胜丁海林显添
Owner COMBA RF TECH GUANGZHOU LTD
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