CN109066025A - A kind of filter with metallic rod - Google Patents
A kind of filter with metallic rod Download PDFInfo
- Publication number
- CN109066025A CN109066025A CN201810984492.0A CN201810984492A CN109066025A CN 109066025 A CN109066025 A CN 109066025A CN 201810984492 A CN201810984492 A CN 201810984492A CN 109066025 A CN109066025 A CN 109066025A
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- CN
- China
- Prior art keywords
- medium
- cover board
- metallic rod
- cavity
- resonant
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P1/00—Auxiliary devices
- H01P1/20—Frequency-selective devices, e.g. filters
- H01P1/207—Hollow waveguide filters
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- Control Of Motors That Do Not Use Commutators (AREA)
Abstract
The present invention relates to a kind of filters with metallic rod；Cover board is equipped in the cavity；Bottom is equipped with resonant rod in the cavity；The resonant rod is equipped with capacitive load disk, and there are gaps between above-mentioned torch loading disc and cover board；The cover board center is equipped with medium；The medium has coupled metallic rod；The medium is externally provided with the nut being rotatably connected with it.The excessively electric field that the present invention changes existing tuning manner concentrates at one, and cause power low, the phenomenon of intermodulation difference, using the material of various different permitivities, to be applied to change permitivity between various types filter and nut, dielectric insulator, the field distribution for realizing resonant cavity is uniform, substantially increases power, and gap discharge is avoided to generate intermodulation；Structure is simple, on the basis of not dramatically increasing processing cost and guaranteeing resonant cavity high quality factor, improves efficiency.
Description
Technical field
The present invention relates to field of microwave communication, more particularly to a kind of high-power, filter with metallic rod of low intermodulation.
Background technique
The filter circuit that power-supply filter is made of capacitor, inductance and resistance.Filter can be to specific in power supply line
Frequency other than the frequency point of frequency or the frequency point is effectively filtered out, and obtains the power supply signal of a specific frequency, or eliminate one
The excessively electric field of power supply signal after a specific frequency, the tuning manner of existing filter concentrates at one, so as to cause power
Low, the phenomenon of intermodulation difference, the non-uniform electric of resonant cavity, gap discharge generation intermodulation, processing cost is high, it cannot be guaranteed that humorous
On the basis of chamber high quality factor of shaking, working efficiency is low.
Summary of the invention
A kind of a kind of band metal of high-power, low intermodulation is provided the invention aims to overcome the deficiencies in the prior art
The filter of bar.
In order to achieve the above objectives, the technical solution adopted by the present invention is that: include: cavity, cover board, resonant rod, capacitive load
Disk, nut, medium, metallic rod；The cavity is equipped with cover board；Bottom is equipped with resonant rod in the cavity；In the resonant rod
Equipped with resonant cavity；The resonant rod is equipped with capacitive load disk, and there are gaps between above-mentioned torch loading disc and cover board；It is described
Cover board center is equipped with medium；The medium is equipped with external screw thread；The medium has coupled metallic rod；Outside the medium
Equipped with nut；The internal screw thread matched with the external screw thread on medium is equipped in the nut, for making the bottom end of metallic rod humorous
It is moved up and down in vibration bar；The medium upper end is equipped with rotating hole, for making the rotation of the medium in nut downwards by spanner, medium
It drives metallic rod to rotate downwardly together, permitivity is changed by height of the metallic rod in resonant cavity.
Preferably, the material of the medium is made of insulating materials.
Preferably, the insulating materials is made of plastics, pe-peek, polytetrafluoroethylene (PTFE), glass.
Preferably, the medium temperature coefficient of expansion is greater than the temperature expansion coefficient of tuning screw, and the temperature of above-mentioned adjusting
The degree coefficient of expansion is negative value.
Due to the application of the above technical scheme, compared with the prior art, the invention has the following advantages:
The excessively electric field that the present invention changes existing tuning manner concentrates at one, and causes power low, and the phenomenon of intermodulation difference is adopted
With the material of various different permitivities, to be applied to change permitivity between various types filter and nut, dielectric insulator,
The field distribution for realizing resonant cavity is uniform, substantially increases power, and gap discharge is avoided to generate intermodulation；Structure is simple, not
On the basis of dramatically increasing processing cost and guaranteeing resonant cavity high quality factor, improve efficiency, intermodulation this for the filtering of contracting body
The volume of device and duplexer has very important significance, and can be widely applied to Modern wireless communication field.
Detailed description of the invention
Accompanying drawing 1 is the structural representation of the present invention；
Wherein: 1, medium；2, nut；3, resonant cavity；5, metallic rod；6, resonant rod；7, cavity；8, cover board；9, capacitive load disk；
10, rotating hole.
Specific embodiment
Below in conjunction with the accompanying drawings and specific embodiment, the present invention is described in further details.
A kind of filter with metallic rod of the present invention as shown in Fig. 1, includes: cavity 7, cover board 8, resonant rod
6, capacitive load disk 9, nut 2, medium 1, metallic rod 5；The cavity 7 is equipped with cover board 8；Bottom is equipped with humorous in the cavity 7
Shake bar 6；Resonant cavity 3 is equipped in the resonant rod 6；The resonant rod 6 is equipped with capacitive load disk 9, and above-mentioned capacitive load disk 9
There are gaps between cover board 8；8 center of cover board is equipped with medium 1；The medium 1 is externally provided with external screw thread；Under the medium 1
Equipped with coupled metallic rod 5；The medium 1 is externally provided with nut 2；It is equipped in the nut 2 and matches with the external screw thread of medium 1
The internal screw thread of conjunction, for moving up and down the bottom end of metallic rod 5 in resonant rod 6；1 upper end of medium is equipped with rotating hole 10,
For rotating the medium 1 in nut 2 downwards, medium 1 drives metallic rod 5 to rotate downwardly together, passes through metallic rod 5
Height in resonant cavity 3 changes permitivity.
The material of the medium 1 is made of insulating materials.
The insulating materials is made of plastics, pe-peek, polytetrafluoroethylene (PTFE) or glass.
1 temperature expansion coefficient of medium is greater than the temperature expansion coefficient of tuning screw 6, and the temperature expansion of above-mentioned adjusting
Coefficient is negative value.
The present invention, using the material of various different permitivities, to be applied to various types filter and nut, dielectric insulation
Change permitivity between body, the field distribution for realizing resonant cavity is uniform, substantially increases power, avoids gap discharge from generating mutual
It adjusts；Structure is simple, on the basis of not dramatically increasing processing cost and guaranteeing resonant cavity high quality factor, improves efficiency, mutually
This is adjusted to have very important significance the volume of contracting fluid filter and duplexer.
The excessively electric field that the present invention changes existing tuning manner concentrates at one, and causes power low, and intermodulation difference shows
As being lured to be applied to change between various types filter and nut, dielectric insulator using the material of various different permitivities
Electric rate, the field distribution for realizing resonant cavity is uniform, substantially increases power, and gap discharge is avoided to generate intermodulation；Structure is simple,
On the basis of not dramatically increasing processing cost and guaranteeing resonant cavity high quality factor, improve efficiency, intermodulation this for contracting body
The volume of filter and duplexer has very important significance, and can be widely applied to Modern wireless communication field.
The above is only specific application examples of the invention, are not limited in any way to protection scope of the present invention.All uses
Equivalent transformation or equivalent replacement and the technical solution formed, all fall within rights protection scope of the present invention.
Claims (4)
1. a kind of filter with metallic rod characterized by comprising cavity, cover board, resonant rod, capacitive load disk, nut,
Medium, metallic rod；The cavity is equipped with cover board；Bottom is equipped with resonant rod in the cavity；It is equipped with inside the resonant rod humorous
Shake chamber；The resonant rod is equipped with capacitive load disk, and there are gaps between above-mentioned torch loading disc and cover board；In the cover board
Centre is equipped with medium；The medium is equipped with external screw thread；The medium has coupled metallic rod；The medium is externally provided with spiral shell
It is female；The internal screw thread matched with the external screw thread of medium is equipped in the nut；The medium upper end is equipped with rotating hole.
2. a kind of filter with metallic rod according to claim 1, it is characterised in that: the material of the medium is insulation
Material is made.
3. a kind of filter with metallic rod according to claim 1, it is characterised in that: the insulating materials be plastics,
Pe-peek, polytetrafluoroethylene (PTFE) or glass are made.
4. a kind of filter with metallic rod according to claim 1, it is characterised in that: the medium temperature coefficient of expansion
Greater than the temperature expansion coefficient of tuning screw, and above-mentioned temperature expansion coefficient is negative value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810984492.0A CN109066025A (en) | 2018-08-28 | 2018-08-28 | A kind of filter with metallic rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810984492.0A CN109066025A (en) | 2018-08-28 | 2018-08-28 | A kind of filter with metallic rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109066025A true CN109066025A (en) | 2018-12-21 |
Family
ID=64757362
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810984492.0A Withdrawn CN109066025A (en) | 2018-08-28 | 2018-08-28 | A kind of filter with metallic rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109066025A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI831476B (en) * | 2022-08-17 | 2024-02-01 | 大陸商昆山立訊射頻科技有限公司 | Resonant rod and radio frequency wave filter |
-
2018
- 2018-08-28 CN CN201810984492.0A patent/CN109066025A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI831476B (en) * | 2022-08-17 | 2024-02-01 | 大陸商昆山立訊射頻科技有限公司 | Resonant rod and radio frequency wave filter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 215000, 88 Taiping Road, Taiping Street, Suzhou, Jiangsu, Xiangcheng District Applicant after: SUZHOU JUGUANGDA COMMUNICATION TECHNOLOGY Co.,Ltd. Address before: 215000 Diamond Road 2008, Weitang Town, Suzhou, Jiangsu, Xiangcheng District Applicant before: SUZHOU JUGUANGDA COMMUNICATION TECHNOLOGY Co.,Ltd. |
|
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20181221 |