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Small hybrid mode filter with two resonant cavities

A resonant cavity and filter technology, applied in the field of communications, can solve the problems of inability to integrate antennas, large volume and weight, and low power capacity, and achieve the effects of improving coverage, good harmonic performance, and large power capacity.

Pending Publication Date: 2020-07-10
PIVOTONE COMM TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] If the traditional metal filter is selected, it cannot be integrated inside the antenna due to the size and weight of the traditional metal filter.
If a small dielectric waveguide filter is selected, although the size of the small dielectric waveguide filter is small, its insertion loss is large and its power capacity is low

Method used

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  • Small hybrid mode filter with two resonant cavities
  • Small hybrid mode filter with two resonant cavities
  • Small hybrid mode filter with two resonant cavities

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Embodiment Construction

[0029] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention more clear, the implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0030] Please refer to figure 1 , which shows a small mixed-mode filter with two kinds of resonant cavities provided by an embodiment of the present invention, the filter includes: n resonant cavities 110 connected in series, and every two adjacent resonant cavities 110 are spaced apart A metal sheet 120, n≥3.

[0031] Wherein, if the number of resonant cavities 110 is n, the number of metal sheets 120 is n−1, and the number of n can be determined according to actual filter indexes, which is not limited in this embodiment.

[0032] figure 1 Take n as 6 for example, then figure 1 Shown is a tenth-order four-zero mixed-mode filter. The filter includes a first resonant cavity 110, a first metal plate 120, a se...

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Abstract

The embodiment of the invention discloses a small hybrid mode filter with two resonant cavities, and belongs to the technical field of communication. The filter comprises n resonant cavities which areconnected in series, a metal sheet is arranged between every two adjacent resonant cavities, and n is larger than or equal to 3. A first resonant cavity and a last resonant cavity in the n resonant cavities are metal resonant cavities, and the remaining n-2 resonant cavities are dielectric dual-mode resonant cavities. The n resonant cavities are coupled through coupling windows on the metal sheets. The filter provided by the embodiment of the invention has the characteristics of compact size, low loss, high power capacity, high out-of-band rejection and good harmonic performance, so that theanti-interference capability and the spectrum utilization rate of a 5G communication system can be effectively improved, the power consumption of the 5G communication system is reduced, and the coverage range of the 5G communication system is enlarged.

Description

technical field [0001] The embodiments of the present invention relate to the technical field of communication, and in particular to a small mixed-mode filter with two kinds of resonant cavities. Background technique [0002] Sub 6GHz in 5G (5th Generation) communication adopts MIMO (Multi-Input Multi-Output) technology, which needs to integrate a large number of filters inside the antenna. Therefore, the loss of filters, out-of-band rejection, power Capacity, volume, weight, etc. have higher requirements. [0003] If a traditional metal filter is selected, it cannot be integrated inside the antenna due to its volume and weight. If a small dielectric waveguide filter is selected, although the size of the small dielectric waveguide filter is small, its insertion loss is large and its power capacity is low. Contents of the invention [0004] An embodiment of the present invention provides a small mixed-mode filter with two kinds of resonant cavities to solve the problems i...

Claims

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Application Information

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IPC IPC(8): H01P1/208H01P1/212
CPCH01P1/208H01P1/2086H01P1/212
Inventor 江顺喜梁国春杜锦杰王飞项显殷实张丽玲
Owner PIVOTONE COMM TECH
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