CN215008521U - Air strip line filter - Google Patents
Air strip line filter Download PDFInfo
- Publication number
- CN215008521U CN215008521U CN202121202220.4U CN202121202220U CN215008521U CN 215008521 U CN215008521 U CN 215008521U CN 202121202220 U CN202121202220 U CN 202121202220U CN 215008521 U CN215008521 U CN 215008521U
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- cavity
- stripline filter
- resonator
- tubular cavity
- air stripline
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Abstract
The utility model discloses an air stripline filter, its cavity are thin wall extrusion's tubulose cavity, and its syntonizer is the piece type syntonizer. The utility model discloses an air stripline filter has characteristics such as simple structure, volume miniaturization, weight lightweight ization, convenient assembling, maneuverability is strong, production efficiency height.
Description
Technical Field
The utility model relates to a radio frequency communication technical field, concretely relates to air stripline filter.
Background
The performance of the transceiver filter serving as a key device of the radio frequency front end of the mobile base station directly affects the communication quality, and with the development of a mobile communication network and the application of a large-scale MIMO antenna in a 5G communication system, the number of the front end filters is greatly increased, which puts higher requirements on the miniaturization, the light weight and the integration of the filters.
In the prior art, a coaxial cavity filter and a ceramic filter are commonly used. The cavity of the coaxial cavity filter is manufactured by die casting, so that the size and the weight are large; the dielectric waveguide filter is difficult to debug, and ceramic materials are easy to crack, so that electrical performance is failed.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide an air stripline filter, which comprises a cavity and a resonator arranged in the cavity; the cavity is a tubular cavity formed by thin-wall extrusion; the resonator is a chip-type resonator.
Preferably, the bottom wall of the tubular cavity is provided with: a slot for a plug-in type resonator; the slot and the tubular cavity extend in the same direction; the chip-type resonator is inserted into the slot.
Preferably, the chip-type resonator includes: the resonance device comprises a strip-shaped base inserted into the slot and a row of resonance columns extending upwards from the base; the strip-shaped base and the slots extend in the same direction, and the row of resonant columns are arranged along the extending direction of the strip-shaped base.
Preferably, the strip-shaped base is welded and fixed with the slot.
Preferably, two ends of the tubular cavity are respectively sealed by end covers, and one end cover is provided with a radio frequency connector; the chip resonator is electrically connected with the radio frequency connector.
Preferably, the chip-type resonator further includes: a connection section for connecting with a radio frequency connector; the connecting section is arranged on the resonant column closest to the radio frequency connector.
Preferably, the top end of the tubular cavity is further provided with a debugging screw assembly.
Preferably, the top end of the tubular cavity is provided with: and the screw hole is used for installing and debugging the screw rod assembly.
Preferably, the top end of the tubular cavity is also provided with a fly rod assembly.
Preferably, the top end of the tubular cavity is further provided with: a mounting port for the fly rod assembly to pass in and out; the mounting opening is closed by an upper cover; the flying bar component is fixed on the bottom surface of the upper cover.
The utility model has the advantages and the beneficial effects that: the air strip line filter adopts a cavity and a sheet resonator which are formed by thin-wall extrusion and has the characteristics of simple structure, small size, light weight, convenience in assembly, strong operability, high production efficiency and the like.
The utility model discloses a filter cavity is thin wall extrusion's die cavity, and the syntonizer is a piece type structure, only needs to weld together with radio frequency connector and syntonizer earlier, inserts the syntonizer again the cavity and with the cavity welding good, the equipment can be accomplished to the pole subassembly and the debugging screw rod subassembly that flies of reloading.
Drawings
Fig. 1 is a schematic diagram of a chip-type resonator according to the present invention;
fig. 2 is a schematic diagram of the cavity of the filter according to the present invention;
fig. 3 is an assembly diagram of the filter of the present invention.
Detailed Description
The following description will further describe embodiments of the present invention with reference to the accompanying drawings and examples. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
As shown in fig. 1 to 3, the present invention provides an air stripline filter, which includes a cavity 1 and a resonator 2 disposed in the cavity 1; the cavity 1 is a tubular cavity 1 formed by thin-wall extrusion; the resonator 2 is a chip-type resonator 2.
More specifically:
the bottom wall of the tubular cavity 1 is provided with: a slot 11 for the plug-in type resonator 2; the slot 11 and the tubular cavity 1 extend in the same direction;
the chip-type resonator 2 includes: a strip-shaped base 21 inserted into the slot 11, and a row of resonant columns 22 extending upward from the base 21; the strip-shaped base 21 extends in the same direction as the slot 11, and the row of resonant columns 22 is arranged along the extending direction of the strip-shaped base 21; the strip-shaped base 21 is fixedly welded with the slot 11;
two ends of the tubular cavity 1 are respectively sealed by end covers 31 and 32, wherein one end cover 31 is provided with a radio frequency connector 4; the radio frequency connector 4 is fixedly connected with the end cover 31 through a fastening screw 41; the chip-type resonator 2 further includes: a connection section 23 for connection with the radio frequency connector 4; the connecting section 23 is arranged on the resonant column 22 closest to the radio frequency connector 4; the connecting section 23 of the chip resonator 2 is welded with the radio frequency connector 4;
the top end of the tubular cavity 1 is also provided with a debugging screw component 5; the top end of the tubular cavity 1 is provided with: a screw hole 12 for mounting the debugging screw assembly 5;
the top end of the tubular cavity 1 is also provided with a fly rod assembly 6; the top end of the tubular cavity 1 is also provided with: a mounting port 13 for the fly rod assembly 6 to enter and exit; the mounting port 13 is closed by an upper cover 33; the fly rod assembly 6 is fixed to the bottom surface of the upper cover 33.
The utility model discloses a filter cavity 1 is thin wall extrusion's die cavity, and syntonizer 2 is a slice type structure, only needs to weld together with radio frequency connector 4 and syntonizer 2 earlier, inserts cavity 1 and welds well with cavity 1 with syntonizer 2 again, and the equipment can be accomplished to reentrant flying bar subassembly 6 and debugging screw rod subassembly 5.
The utility model discloses a thin wall extrusion's cavity 1 and piece type syntonizer 2 have characteristics such as simple structure, volume miniaturization, weight lightweight ization, convenient assembling, maneuverability is strong, production efficiency height.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the technical principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.
Claims (10)
1. The air stripline filter comprises a cavity and a resonator arranged in the cavity; the device is characterized in that the cavity is a tubular cavity formed by thin-wall extrusion; the resonator is a chip-type resonator.
2. The air stripline filter of claim 1, wherein the bottom wall of the tubular cavity is provided with: a slot for a plug-in type resonator; the slot and the tubular cavity extend in the same direction; the chip-type resonator is inserted into the slot.
3. The air stripline filter of claim 2, wherein the chip resonator comprises: the resonance device comprises a strip-shaped base inserted into the slot and a row of resonance columns extending upwards from the base; the strip-shaped base and the slots extend in the same direction, and the row of resonant columns are arranged along the extending direction of the strip-shaped base.
4. The air stripline filter of claim 3, wherein the strip-shaped base is welded to the slot.
5. The air stripline filter of claim 4, wherein the tubular cavity is closed at each end by an end cap, one of the end caps being provided with a radio frequency connector; the chip resonator is electrically connected with the radio frequency connector.
6. The air stripline filter of claim 5, wherein the chip resonator further comprises: a connection section for connecting with a radio frequency connector; the connecting section is arranged on the resonant column closest to the radio frequency connector.
7. The air stripline filter of claim 1, wherein the top end of the tubular cavity is further provided with a tuning screw assembly.
8. The air stripline filter of claim 1, wherein the top end of the tubular cavity is provided with: and the screw hole is used for installing and debugging the screw rod assembly.
9. The air stripline filter of claim 1, wherein the top end of the tubular cavity is further provided with a fly rod assembly.
10. The air stripline filter of claim 1, wherein the top end of the tubular cavity is further provided with: a mounting port for the fly rod assembly to pass in and out; the mounting opening is closed by an upper cover; the flying bar component is fixed on the bottom surface of the upper cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121202220.4U CN215008521U (en) | 2021-06-01 | 2021-06-01 | Air strip line filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121202220.4U CN215008521U (en) | 2021-06-01 | 2021-06-01 | Air strip line filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215008521U true CN215008521U (en) | 2021-12-03 |
Family
ID=79084626
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121202220.4U Active CN215008521U (en) | 2021-06-01 | 2021-06-01 | Air strip line filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215008521U (en) |
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2021
- 2021-06-01 CN CN202121202220.4U patent/CN215008521U/en active Active
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