CN209045720U - A kind of four mould dielectric waveguide filter of two-chamber - Google Patents
A kind of four mould dielectric waveguide filter of two-chamber Download PDFInfo
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- CN209045720U CN209045720U CN201822072153.3U CN201822072153U CN209045720U CN 209045720 U CN209045720 U CN 209045720U CN 201822072153 U CN201822072153 U CN 201822072153U CN 209045720 U CN209045720 U CN 209045720U
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- dielectric waveguide
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Abstract
A kind of four mould dielectric waveguide filter of two-chamber, is related to mobile communication field, especially a kind of dielectric waveguide filter.It solves existing small-sized medium waveguide filter and is difficult to satisfactory technical deficiency using single transmission mode, dielectric waveguide filter main body includes the first resonant cavity and the second resonant cavity, input coupling probe and output coupling probe are separately connected the first resonant cavity and the second resonant cavity, and the first resonant cavity and the second resonant cavity are in "-" type structure lineal layout；It is coupled between first resonant cavity and the second resonant cavity by dielectric waveguide filter window；It is coupled respectively by coupling step between first mode and second mode and in the second resonant cavity between the third mode and fourth mode in first resonant cavity.A kind of four mould dielectric waveguide filter of two-chamber is realized, structure is simple, function admirable, and it is small in size, facilitate production and processing.
Description
Technical field
The utility model relates to arrive mobile communication field, especially a kind of dielectric waveguide filter.
Background technique
It is with the development of technology, higher and higher for the performance requirement of filter in system in mobile communication field.It is adjoint
5G mobile communication standard is established, the raising of device systems performance, and base station end High-Power Microwave Filter shows index height, volume
Small, inexpensive feature.When realizing these high performance filters, it is limited to cavity size, filter is needed using new
Material or technology realize.When transmission frequency is in high frequency, in order to meet the performance requirements such as loss and inhibition, medium can be selected
Waveguide filter.Dielectric waveguide filter has size small, the advantages such as performance height, is widely used in the application of filter.
It is limited to the size of filter, the requirement such as performance, often dielectric waveguide filter is difficult to using single transmission mode
It meets the requirements.
Summary of the invention
It is difficult using single transmission mode that utility model aims to solve existing small-sized medium waveguide filters
With satisfactory technical deficiency, and propose a kind of four mould dielectric waveguide filter of two-chamber.
To solve the technical issues of the utility model is proposed, the technical solution of use are as follows: a kind of four mould medium wave of two-chamber
Waveguide filter, include dielectric waveguide filter main body and the input coupling probe that is fixed in dielectric waveguide filter main body and
Output coupling probe；It is characterized by: the dielectric waveguide filter main body includes the first resonant cavity and the second resonant cavity,
Input coupling probe and output coupling probe are separately connected the first resonant cavity and the second resonant cavity, the first resonant cavity and the second resonance
Chamber is in "-" type structure lineal layout；It is coupled between first resonant cavity and the second resonant cavity by dielectric waveguide filter window；The
Pass through respectively between the third mode and fourth mode between first mode and second mode and in the second resonant cavity in one resonant cavity
Couple step coupling.
As the technical solution being further qualified to the utility model are as follows: in first resonant cavity first mode with
The fourth mode of second resonant cavity is by the first coupling window coupling, the of second mode and the second resonant cavity in the first resonant cavity
Three modes pass through the second coupling window coupling；Pass through cavity edge in first resonant cavity between first mode and second mode
First coupling step couples, and passes through the second coupling by cavity edge between the third mode and fourth mode in the second resonant cavity
Close step coupling.
The utility model has the beneficial effect that compared with prior art, Jie using four mode structure of two-chamber of the utility model
Matter waveguide filter adjusts filter frequencies by adjusting two resonant cavity sizes, by adjusting the two coupling step depths and two
Window size is coupled to adjust filter passband width and logical out-of-band transmission zero point distance, simple and reasonable for structure, Neng Gouyou
The four mould dielectric waveguide filter of realization two-chamber of effect.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
Specific embodiment
The structure of the utility model is made further below in conjunction with attached drawing and the utility model preferred specific embodiment
Explanation.
Referring to fig. 1, a kind of four mould dielectric waveguide filter of two-chamber of the utility model includes Medium Wave Guide filtering
Device main body and the input coupling probe 1 and output coupling probe 2 being fixed in dielectric waveguide filter main body；The medium wave
Waveguide filter main body includes the first resonant cavity 3 and the second resonant cavity 4, and input coupling probe 1 and output coupling probe 2 are separately connected
First resonant cavity 3 and the second resonant cavity 4, the first resonant cavity 3 and the second resonant cavity 4 are in "-" type structure lineal layout；First is humorous
Vibration chamber 3 is coupled between the second resonant cavity 4 by dielectric waveguide filter window, specifically: first in first resonant cavity 3
Mode couples window 7 by first with the fourth mode of the second resonant cavity 4 and couples, second mode and second in the first resonant cavity 3
The third mode of resonant cavity 4 is coupled by the second coupling window 8；And in the first resonant cavity 3 between first mode and second mode
It is coupled by the first coupling step 5 of 3 cavity edge of the first resonant cavity, the third mode and fourth mode in the second resonant cavity 4
Between coupled by the second resonant cavity 4 cavity edge by the second coupling step 6.
That is to say in two resonant cavities of the utility model TE10 mould and TE01 mould direction of an electric field in X-axis and Y-axis there are component,
The first mode and second of the first resonant cavity 3 and the second resonant cavity 4 is realized by the first coupling step 5 and the second coupling step 6
Mode Coupling and the third mode are coupled with fourth mode, realize second mode by the second coupling window 8 and the first coupling window 7
It is coupled with the third mode and first mode is coupled with fourth mode, the first mould is adjusted by the first coupling 7 size of window
The power of formula and fourth mode.Filter resonance is realized by changing the size of the first resonant cavity 3 and the second resonant cavity 4
The tuning of frequency, by the depth of the first coupling step 5 of tuning and the second coupling step 6, the first coupling window 7 and the second coupling
8 size of window carrys out tuned filter passband width and filter out-of-band transmission zero point is far and near.
The utility model realizes a kind of four mould dielectric waveguide filter of two-chamber by the above technology, and structure is simple, performance
It is excellent, it is small in size, facilitate production and processing.
The most preferred embodiment of the utility model has illustrated, and the various change or remodeling made by those skilled in the art are not
The scope of the utility model can be detached from.
Claims (2)
1. a kind of four mould dielectric waveguide filter of two-chamber includes that dielectric waveguide filter main body is filtered with Medium Wave Guide is fixed on
Input coupling probe and output coupling probe in device main body；It is characterized by: the dielectric waveguide filter main body includes
First resonant cavity and the second resonant cavity, input coupling probe and output coupling probe are separately connected the first resonant cavity and the second resonance
Chamber, the first resonant cavity and the second resonant cavity are in "-" type structure lineal layout；Pass through Jie between first resonant cavity and the second resonant cavity
The coupling of matter waveguide filter window；The third mode between first mode and second mode and in the second resonant cavity in first resonant cavity
Respectively by coupling step coupling between fourth mode.
2. four mould dielectric waveguide filter of a kind of two-chamber according to claim 1, it is characterised in that: first resonance
Intracavitary first mode and the fourth mode of the second resonant cavity couples window coupling by first, in the first resonant cavity second mode and
The third mode of second resonant cavity passes through the second coupling window coupling；Lead between first mode and second mode in first resonant cavity
The first coupling step coupling of cavity edge is crossed, passes through cavity corner between the third mode and fourth mode in the second resonant cavity
Place passes through the second coupling step coupling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822072153.3U CN209045720U (en) | 2018-12-11 | 2018-12-11 | A kind of four mould dielectric waveguide filter of two-chamber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822072153.3U CN209045720U (en) | 2018-12-11 | 2018-12-11 | A kind of four mould dielectric waveguide filter of two-chamber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209045720U true CN209045720U (en) | 2019-06-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822072153.3U Active CN209045720U (en) | 2018-12-11 | 2018-12-11 | A kind of four mould dielectric waveguide filter of two-chamber |
Country Status (1)
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| CN (1) | CN209045720U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109390644A (en) * | 2018-12-11 | 2019-02-26 | 深圳市麦捷微电子科技股份有限公司 | A kind of four mould dielectric waveguide filter of two-chamber |
-
2018
- 2018-12-11 CN CN201822072153.3U patent/CN209045720U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109390644A (en) * | 2018-12-11 | 2019-02-26 | 深圳市麦捷微电子科技股份有限公司 | A kind of four mould dielectric waveguide filter of two-chamber |
| CN109390644B (en) * | 2018-12-11 | 2024-04-16 | 深圳市麦捷微电子科技股份有限公司 | Double-cavity four-mode dielectric waveguide filter |
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