CN109361041B - Novel filter input coupling structure - Google Patents
Novel filter input coupling structure Download PDFInfo
- Publication number
- CN109361041B CN109361041B CN201811422894.8A CN201811422894A CN109361041B CN 109361041 B CN109361041 B CN 109361041B CN 201811422894 A CN201811422894 A CN 201811422894A CN 109361041 B CN109361041 B CN 109361041B
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- CN
- China
- Prior art keywords
- tap
- insulating medium
- round block
- outer diameter
- coupling structure
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- 230000008878 coupling Effects 0.000 title claims abstract description 21
- 238000010168 coupling process Methods 0.000 title claims abstract description 21
- 238000005859 coupling reaction Methods 0.000 title claims abstract description 21
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 4
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 4
- -1 polytetrafluoroethylene Polymers 0.000 claims description 3
- 238000003466 welding Methods 0.000 abstract description 7
- 230000007547 defect Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
-
- 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 invention relates to a novel filter input coupling structure. The tap round block comprises a tap guide rod, an insulating medium, a tap round block and a resonator, wherein a threaded hole is formed in the side face of the resonator, the tap round block comprises a threaded column located at one end of the tap round block, the threaded column is connected with the threaded hole, the tap round block further comprises a connecting block and a sleeve rod located at the other end of the tap round block, a fastening hole perpendicular to each other is formed in a body of the tap round block, the insulating medium is in a step shape, the insulating medium is sleeved on the sleeve rod, the outer diameter of a large circle of the insulating medium is equal to the outer diameter of the connecting block, the tap guide rod comprises an opening part and a rod part, the opening part is matched with the step surface of the insulating medium and sleeved on the insulating medium, and the outer diameter of the opening part is equal to the outer diameter of the connecting block. Compared with the existing tap coupling structure formed by welding, the novel filter input coupling structure is simple to install, high in coupling strength and intermodulation, low in time delay (the time delay can reach 1 ns), wide in filter bandwidth and stable in connection mode.
Description
Technical Field
The invention relates to a novel filter input coupling structure. Belongs to the technical field of electric elements.
Background
Along with the continuous development of communication technology, in order to meet the demands of people on network rate, the microwave frequency bandwidth is continuously increased, wherein a passive radio frequency module is an important component in a radio frequency system, and the passive radio frequency module has wide application; and the filter is a component for suppressing unwanted frequency signals by the wanted frequency signals.
The existing coupling processing modes of the cavity structural member of the filter are mostly tap wire welding, and tap coupling formed by the welding mode has the defects of more welding spots, easiness in cold joint, welding omission, high mounting requirement precision and the like, and intermodulation defects are easily caused.
Disclosure of Invention
The invention aims to overcome the defects, and provides a novel filter input coupling structure which can simplify a die, accelerate production efficiency, simplify manufacture, avoid adding any equipment and system, and realize automatic operation.
The purpose of the invention is realized in the following way:
the novel filter input coupling structure is characterized in that: the tap round block comprises a tap guide rod, an insulating medium, a tap round block and a resonator, wherein a threaded hole is formed in the side face of the resonator, the tap round block comprises a threaded column located at one end of the tap round block, the threaded column is connected with the threaded hole, the tap round block further comprises a connecting block and a sleeve rod located at the other end of the tap round block, a fastening hole perpendicular to each other is formed in a body of the tap round block, the insulating medium is in a step shape, the insulating medium is sleeved on the sleeve rod, the outer diameter of a large circle of the insulating medium is equal to the outer diameter of the connecting block, the tap guide rod comprises an opening part and a rod part, the opening part is matched with the step surface of the insulating medium and sleeved on the insulating medium, and the outer diameter of the opening part is equal to the outer diameter of the connecting block.
Further, the insulating medium is made of polytetrafluoroethylene.
Further, the insulating medium, the tap round block and the resonator are positioned in the cavity shell, one part of the tap guide rod is positioned in the cavity shell, and the other part of the tap guide rod extends out of the cavity shell.
Compared with the prior art, the invention has the beneficial effects that:
Compared with the existing tap coupling structure formed by welding, the novel filter input coupling structure is simple to install, high in coupling strength and intermodulation, low in time delay (the time delay can reach 1 ns), wide in filter bandwidth and stable in connection mode.
Drawings
Fig. 1 is a schematic diagram of a novel filter input coupling structure according to the present invention.
Fig. 2 is an exploded view of fig. 1.
Fig. 3 is a schematic view of the chamber housing of fig. 1.
In the figure:
Tap guide rod 1, opening part 1.1, rod part 1.2, insulating medium 2, tap round block 3, fastening hole 3.1, screw thread post 3.2, connecting block 3.3, loop bar 3.4, resonator 4, screw hole 4.1.
Detailed Description
The following describes the embodiments of the present invention further with reference to the drawings and examples. The following examples are only for more clearly illustrating the technical aspects of the present invention, and are not intended to limit the scope of the present invention.
Referring to fig. 1-2, the present invention relates to a novel filter input coupling structure comprising a tap guide 1, an insulating medium 2, a tap knob 3 and a resonator 4.
The side of the resonator 4 is provided with a threaded hole 4.1, the tap round block 3 comprises a threaded column 3.2 positioned at one end of the tap round block, the threaded column 3.2 is connected with the threaded hole 4.1, the tap round block 3 further comprises a connecting block 3.3 positioned at the other end of the tap round block and a sleeve rod 3.4, the body of the tap round block 3 is provided with a fastening hole 3.1 which is perpendicular to each other, the insulating medium 2 is in a step shape, the insulating medium 2 is sleeved on the sleeve rod 3.4, the outer diameter of a large circle of the insulating medium 2 is equal to the outer diameter of the connecting block 3.3, the tap guide rod 1 comprises an opening part 1.1 and a rod part 1.2, the opening part 1.1 is matched with the step surface of the insulating medium 2 and sleeved on the insulating medium 2, and the outer diameter of the opening part 1.1 is equal to the outer diameter of the connecting block 2.
The insulating medium 2 is made of PTFE (polytetrafluoroethylene).
Referring to fig. 3, the dielectric 2, tap knob 3 and resonator 4 are located within the housing, and one part of the tap guide bar 1 is located within the housing and the other part extends out of the housing.
Working principle:
According to the novel filter input coupling structure, when the novel filter input coupling structure is installed, a tap round block 3 is connected with a threaded hole 4.1 of a resonator 4 through a threaded column 3.2, then a contact pin penetrates through a fastening hole 3.1 of the tap round block 3, the tap round block 3 is screwed tightly attached to the resonator 4, an insulating medium 2 is sleeved into the other end of the tap round block 3, a tap guide rod 1 is sleeved on a step surface of the insulating medium 2, and the tap guide rod 1 is tightly attached to the insulating medium 2.
Compared with the existing tap coupling structure formed by welding, the invention has the advantages of simple installation, high coupling strength, high intermodulation, lower time delay (the time delay can reach 1 ns), wider filter bandwidth and more stable connection mode.
In the above embodiments, the present invention is described only by way of example, but various modifications of the invention can be made by those skilled in the art after reading the present patent application without departing from the spirit and scope of the invention.
Claims (1)
1. A filter input coupling structure, characterized by: the tap round block comprises a tap guide rod, an insulating medium, a tap round block and a resonator, wherein a threaded hole is formed in the side face of the resonator, the tap round block comprises a threaded column positioned at one end of the tap round block, the threaded column is connected with the threaded hole, the tap round block further comprises a connecting block and a sleeve rod positioned at the other end of the tap round block, a body of the tap round block is provided with fastening holes which are mutually perpendicular, the insulating medium is in a step shape, the insulating medium is sleeved on the sleeve rod, the large round outer diameter of the insulating medium is equal to the outer diameter of the connecting block, the tap guide rod comprises an opening part and a rod part, the opening part is matched with the step surface of the insulating medium and sleeved on the insulating medium, and the outer diameter of the opening part is equal to the outer diameter of the connecting block;
The insulating medium is made of polytetrafluoroethylene;
The insulating medium, the tap round block and the resonator are positioned in the cavity shell, one part of the tap guide rod is positioned in the cavity shell, and the other part of the tap guide rod extends out of the cavity shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811422894.8A CN109361041B (en) | 2018-11-27 | 2018-11-27 | Novel filter input coupling structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811422894.8A CN109361041B (en) | 2018-11-27 | 2018-11-27 | Novel filter input coupling structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109361041A CN109361041A (en) | 2019-02-19 |
| CN109361041B true CN109361041B (en) | 2024-05-28 |
Family
ID=65343205
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811422894.8A Active CN109361041B (en) | 2018-11-27 | 2018-11-27 | Novel filter input coupling structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109361041B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111463531B (en) * | 2020-05-21 | 2025-02-11 | 江苏贝孚德通讯科技股份有限公司 | Tap coupling component and filter having the same |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01181203A (en) * | 1988-01-13 | 1989-07-19 | Taiyo Yuden Co Ltd | Dielectric resonator |
| CN204632888U (en) * | 2015-06-10 | 2015-09-09 | 苏州东山精密制造股份有限公司 | Single port coupling tap mechanism |
| CN209169349U (en) * | 2018-11-27 | 2019-07-26 | 苏州工业园区艺达精密机械有限公司 | Novel Filter input coupling structure |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE518507C2 (en) * | 2000-12-11 | 2002-10-15 | Allgon Ab | Waveguides and connectors for such |
| CN204720532U (en) * | 2015-06-18 | 2015-10-21 | 东莞鸿爱斯通信科技有限公司 | Connectors for cavity filters |
-
2018
- 2018-11-27 CN CN201811422894.8A patent/CN109361041B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01181203A (en) * | 1988-01-13 | 1989-07-19 | Taiyo Yuden Co Ltd | Dielectric resonator |
| CN204632888U (en) * | 2015-06-10 | 2015-09-09 | 苏州东山精密制造股份有限公司 | Single port coupling tap mechanism |
| CN209169349U (en) * | 2018-11-27 | 2019-07-26 | 苏州工业园区艺达精密机械有限公司 | Novel Filter input coupling structure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109361041A (en) | 2019-02-19 |
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