CN109921160A - A kind of TM mould dielectric filter - Google Patents
A kind of TM mould dielectric filter Download PDFInfo
- Publication number
- CN109921160A CN109921160A CN201910218355.0A CN201910218355A CN109921160A CN 109921160 A CN109921160 A CN 109921160A CN 201910218355 A CN201910218355 A CN 201910218355A CN 109921160 A CN109921160 A CN 109921160A
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- Prior art keywords
- accommodating chamber
- elastic component
- cavity
- dielectric filter
- pedestal
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- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims abstract description 36
- 239000000758 substrate Substances 0.000 claims description 12
- 238000010586 diagram Methods 0.000 description 2
- 235000013399 edible fruits Nutrition 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- TVEXGJYMHHTVKP-UHFFFAOYSA-N 6-oxabicyclo[3.2.1]oct-3-en-7-one Chemical compound C1C2C(=O)OC1C=CC2 TVEXGJYMHHTVKP-UHFFFAOYSA-N 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000010295 mobile communication Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
Landscapes
- Control Of Motors That Do Not Use Commutators (AREA)
Abstract
The present invention relates to a kind of TM mould dielectric filter, including with open end cavity, be installed to the cover board at cavity hatch end, be installed to the tuning block of cavity, the tuning block includes: sequentially connected dielectric resonance post, resonant column pedestal and elastic component；The one side towards elastic component of resonant column pedestal is equipped with the first accommodating chamber of recess；The first end of the elastic component protrudes into first accommodating chamber and supports the inner wall of first accommodating chamber along the radial direction of first accommodating chamber, and the second end of elastic component is connected to the bottom of the cavity.The present invention is connected between cavity bottom and tuning block using elastic component, and elastic component is partly contained in the accommodating chamber of tuning block and supports the inner wall of the accommodating chamber along the radial direction of accommodating chamber, improves the reliability of contact.
Description
[technical field]
The present invention relates to a kind of dielectric filters, more particularly, to a kind of TM (horizontal magnetic) mould dielectric filter.
[background technique]
The quality of transceiving filter of the TM mould dielectric filter as mobile base station radio-frequency front-end Primary Component, performance is straight
Connect the quality for influencing communication.With the development of mobile communication network, 5G technology is closed on, and dielectric filter has the high Q of miniaturization
The characteristic of value is used widely in 5G technology.In a kind of existing dielectric filter, using the knot of thickness two cover plates
Structure, since thin cover sheet thickness is smaller, with aluminium product, Ping Mian Den poor flatness is easily deformed, it is humorous with medium to will lead to cover board
Device contact of shaking is bad, influences filter Q and intermodulation.
[summary of the invention]
The first purpose of this invention is to improve the contact reliability of filter.
A kind of TM mould dielectric filter provided by the invention, including with open end cavity, be installed to cavity hatch end
Cover board, be installed to the tuning block of cavity, the tuning block includes: sequentially connected dielectric resonance post, resonant column pedestal
And elastic component；The one side towards elastic component of resonant column pedestal is equipped with the first accommodating chamber of recess；The first end of the elastic component
It protrudes into first accommodating chamber and supports the inner wall of first accommodating chamber along the radial direction of first accommodating chamber, elastic component
Second end is connected to the bottom of the cavity.
Further, the first end of the elastic component includes several contact chips, and several contact chips are arranged in a ring, and
The inner wall of first accommodating chamber is supported along the radial direction of first accommodating chamber.
Further, several contact chips open up several slots by elastic ring body and are formed, and several slots are along the annular
Arrangement.
Further, the elastic component is integrally formed, and first end and second end is ring body and internal diameter is identical, first end
Outer diameter be greater than second end outer diameter；The first end opens up several slots and forms several contact chips.
Further, the second accommodating chamber is formed on the bottom of the cavity；The second end of the elastic component is closing or does not seal
The ring body closed, the second end of elastic component protrude into second accommodating chamber and support described along the radial direction of second accommodating chamber
The inner wall of two accommodating chambers.
Further, the opening of first accommodating chamber and/or second accommodating chamber forms chamfering, to facilitate receiving
The elastic component.
Further, the bottom of the cavity include the bottom plate of hollow out, be installed to the bottom plate hollow part pedestal, institute
The second end for stating elastic component is connected to the pedestal.
Further, the pedestal forms the second end that the second accommodating chamber is used to accommodate the elastic component, and described second receives
The opening of cavity is opposite with the opening of first accommodating chamber, and the elastic component is made to be housed in first accommodating chamber, second
Between accommodating chamber.
Further, the pedestal also forms third accommodating chamber for accommodating the resonant column pedestal；Second receiving
Chamber is formed in the bottom of third accommodating chamber.
Further, the pedestal includes substrate, the bulge loop towards dielectric resonance post one side for being formed in the substrate, institute
It states and forms the third accommodating chamber between the inner circumferential of bulge loop and the substrate, form platform between the periphery of bulge loop and the substrate
Rank；The hollow part of the bottom plate includes first through hole interconnected and the second through-hole, and the bulge loop is by being threaded onto
First through hole is stated, the step fastens to second through-hole.
The present invention is connected between cavity bottom and tuning block using elastic component, and elastic component is partly contained in tuning
The accommodating chamber of component and the inner wall that the accommodating chamber is supported along the radial direction of accommodating chamber, improve the reliability of contact.
[Detailed description of the invention]
Fig. 1 is a kind of structural schematic diagram for TM mould dielectric filter that one embodiment of the invention provides；
Fig. 2 is the perspective view of the explosion of the dielectric filter of TM mould shown in Fig. 1；
Fig. 3 is the schematic cross-sectional view of the dielectric filter of TM mould shown in Fig. 1；
Fig. 4 is the dielectric resonance post of the dielectric filter of TM mould shown in Fig. 1, resonant column pedestal and the section view signal for tuning nut
Figure；
Fig. 5 is the structural schematic diagram of the elastic component of the dielectric filter of TM mould shown in Fig. 1；
Fig. 6 is the schematic cross-sectional view of the cavity of the dielectric filter of TM mould shown in Fig. 1；
Fig. 7 is the schematic cross-sectional view of the pedestal of the dielectric filter of TM mould shown in Fig. 1.
[specific embodiment]
The invention will be further described with reference to the accompanying drawings and examples.
Referring to figs. 1 to Fig. 3, a kind of TM mould dielectric filter provided by the invention, including the cavity 1, logical with open end
Screw 9 is crossed to be installed to the cover board 2 of 1 open end of cavity, be installed to the tuning block of cavity 1.Tuning block includes sequentially connected
Dielectric resonance post 5, resonant column pedestal 6 and elastic component 7.Preferably, resonant column pedestal 6 is welded to dielectric resonance post 5.Resonant column bottom
Seat is a cricoid metal block.
One end of the separate resonant column pedestal 6 of dielectric resonance post 5 is welded with tuning nut 4, as shown in Figure 4.Tune nut 4
It is installed to cover board 2.Cover board 2 has the mounting hole 21 for installation tuning nut 4.Tuning screw 3 is installed on tuning nut 4, is adjusted
One end of humorous screw rod 3 passes through tuning nut 4 and protrudes into the tuning cavity 51 of dielectric resonance post 5, and the other end is stretched from tuning nut 4
Out, the adjustment of the frequency to TM mould dielectric filter can be realized by tuning screw 3.
As shown in connection with fig. 4, the one side towards elastic component 7 of resonant column pedestal 6 is equipped with the first accommodating chamber 61 of recess, elasticity
The first end 71 of part 7 protrudes into the first accommodating chamber 61 and supports the inner wall to the first accommodating chamber 61 along the radial direction of the first accommodating chamber 61,
The second end 72 of elastic component 7 is connected to the bottom of cavity 1.By this kind of structure, it is humorous that the present invention using elastic component 7 is connected to medium
The ground connection of dielectric resonance post 5 is realized between vibration column 5 and 1 bottom of cavity, and the first end 71 of elastic component 7 is along the first accommodating chamber 61
Radial direction support the inner wall to the first accommodating chamber 61, improve the reliability of contact, it is ensured that the ground connection of dielectric resonance post 5 imitates
Fruit, while shock resistance and advantages of good shielding performance, are unlikely to deform, and ensure that the Q value and high intermodulation requirement of TM mould dielectric filter.
As shown in connection with fig. 5, elastic component 7 is integrally formed, and the first end 71 and second end 72 of elastic component 7 are ring body and interior
Diameter is identical, and the outer diameter of first end 71 is greater than the outer diameter of second end 72.
The first end 71 of elastic component 7 includes several contact chips 711, and several contact chips 711 are arranged in a ring, and is received along first
The radial direction of cavity 61 supports the inner wall to the first accommodating chamber 61.The setting of several contact chips 711, can be further ensured that dielectric resonance
The whole earthing effect of column 5 will not influence whole ground connection, ensure that high intermodulation even if there is a small amount of contact chip 711 to damage
It is required that.The quantity of several contact chips 711 can be configured according to the actual situation.
Preferably, the first end 71 of elastic component 71 opens up several slots 712 and forms above-mentioned several contact chips 711, several slots
711 along annular array.
In other alternative solutions, the first end 71 of elastic component 7 includes elastic ring body, and several contact chips 711 are by elastic ring
Body opens up the formation of several slots 712, and several slots 712 are along annular array.
The second end 72 of elastic component 7 is closed ring body.It is to be appreciated that the second end 72 of elastic component 7 is also possible to not
Closed ring body.
Further, in conjunction with shown in Fig. 6 and Fig. 7, the bottom of cavity 1 includes the bottom plate 11 of hollow out, is installed to bottom plate 11
The second end 72 of the pedestal 8 of hollow part, elastic component 7 is connected to pedestal 8.
Preferably, pedestal 8 forms the second accommodating chamber 85, and the second end 72 of elastic component 7 protrudes into the second accommodating chamber 85 and along the
The radial direction of two accommodating chambers 85 supports the inner wall to the second accommodating chamber 85, can be further ensured that the whole ground connection effect of dielectric resonance post 5
Fruit.The second end 72 of elastic component 7 and the second accommodating chamber 85 are interference fit.
The opening of second accommodating chamber 85 is opposite with the opening of the first accommodating chamber 61, so that elastic component 7 is housed in the
Between one accommodating chamber 61, the second accommodating chamber 85.In actual assembled, the first end 71 of elastic component 7, second end 72 can directly be pressed
Enter the first accommodating chamber 61, the second accommodating chamber 85, it is easy to assembly.
Preferably, the opening of the first accommodating chamber 61 forms chamfering 62 (see Fig. 4), to facilitate the of receiving elastic component 7
One end 71.It is to be appreciated that the opening of the second accommodating chamber 85 also forms chamfering, to facilitate the second end of receiving elastic component 7
72.In other embodiments, the opening of the first accommodating chamber 61 and the second accommodating chamber 85 can also be not provided with chamfering.
Pedestal 8 also forms third accommodating chamber 83 for accommodating resonant column pedestal 6.Second accommodating chamber 85 is formed in third receiving
The bottom of chamber 83.
In the present embodiment, pedestal 8 includes substrate 81, the bulge loop 82 towards 5 one side of dielectric resonance post for being formed in substrate 81.
Above-mentioned third accommodating chamber 83 is formed between the inner circumferential and substrate 81 of bulge loop 82.Platform is formed between the periphery and substrate 81 of bulge loop 82
Rank 84, the hollow part of bottom plate 11 include first through hole 111 interconnected and the second through-hole 112, and the internal diameter of first through hole 111 is small
In the internal diameter of the second through-hole 112.The periphery of bulge loop 82 has external screw thread 821, and the inner wall of first through hole 111 has internal screw thread 113,
External screw thread 821 is threadedly engaged with internal screw thread 113, so that bulge loop 82 is by being threaded onto first through hole 111.Step 84 fastens to
Second through-hole 112.
Above embodiments only express the preferred embodiment of the present invention, and the description thereof is more specific and detailed, but can not
Therefore limitations on the scope of the patent of the present invention are interpreted as.It should be pointed out that for those of ordinary skill in the art,
Without departing from the inventive concept of the premise, various modifications and improvements can be made, such as special to the difference in each embodiment
Sign is combined, and these are all within the scope of protection of the present invention.
Claims (10)
1. a kind of TM mould dielectric filter, including with open end cavity (1), be installed to the cover board of cavity (1) open end
(2), it is installed to the tuning block of cavity (1), which is characterized in that the tuning block includes: sequentially connected dielectric resonance post
(5), resonant column pedestal (6) and elastic component (7)；The one side towards elastic component (7) of resonant column pedestal (6) is equipped with the first of recess
Accommodating chamber；The first end of the elastic component (7) protrudes into first accommodating chamber and supports along the radial direction of first accommodating chamber
The second end of the inner wall of first accommodating chamber, elastic component (7) is connected to the bottom of the cavity (1).
2. TM mould dielectric filter according to claim 1, which is characterized in that the first end of the elastic component (7) includes
Several contact chips, several contact chips are arranged in a ring, and support described first along the radial direction of first accommodating chamber and receive
The inner wall of cavity.
3. TM mould dielectric filter according to claim 2, which is characterized in that several contact chips are opened by elastic ring body
If several slots are formed, several slots are along the annular array.
4. TM mould dielectric filter according to claim 2, which is characterized in that the elastic component (7) is integrally formed, the
One end and second end are ring body and internal diameter is identical, and the outer diameter of first end is greater than the outer diameter of second end；If the first end opens up
Dry slot forms several contact chips.
5. TM mould dielectric filter according to claim 1, which is characterized in that the bottom of the cavity (1) forms second
Accommodating chamber；The second end of the elastic component (7) is closing or not closed ring body, and the second end of elastic component (7) protrudes into described the
Two accommodating chambers and the inner wall that second accommodating chamber is supported along the radial direction of second accommodating chamber.
6. TM mould dielectric filter according to claim 5, which is characterized in that first accommodating chamber and/or described
The opening of two accommodating chambers forms chamfering, to facilitate the receiving elastic component (7).
7. TM mould dielectric filter according to claim 1, which is characterized in that the bottom of the cavity (1) includes hollow out
Bottom plate, be installed to the bottom plate hollow part pedestal (8), the second end of the elastic component (7) is connected to the pedestal
(8)。
8. TM mould dielectric filter according to claim 7, which is characterized in that the pedestal (8) forms the second accommodating chamber
For accommodating the second end of the elastic component (7), the opening of second accommodating chamber is opposite with the opening of first accommodating chamber,
It is housed in the elastic component (7) between first accommodating chamber, the second accommodating chamber.
9. TM mould dielectric filter according to claim 8, which is characterized in that the pedestal (8) also forms third receiving
Chamber is for accommodating the resonant column pedestal (6)；Second accommodating chamber is formed in the bottom of third accommodating chamber.
10. TM mould dielectric filter according to claim 9, which is characterized in that the pedestal (8) includes substrate, formed
Described in being formed in the bulge loop towards dielectric resonance post (5) one side of the substrate, between the inner circumferential of the bulge loop and the substrate
Third accommodating chamber forms step between the periphery of bulge loop and the substrate；The hollow part of the bottom plate includes interconnected
One through-hole and the second through-hole, for the bulge loop by being threaded onto the first through hole, it is logical that the step fastens to described second
Hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910218355.0A CN109921160B (en) | 2019-03-21 | 2019-03-21 | TM mode dielectric filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910218355.0A CN109921160B (en) | 2019-03-21 | 2019-03-21 | TM mode dielectric filter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109921160A true CN109921160A (en) | 2019-06-21 |
| CN109921160B CN109921160B (en) | 2023-11-03 |
Family
ID=66966077
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910218355.0A Active CN109921160B (en) | 2019-03-21 | 2019-03-21 | TM mode dielectric filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109921160B (en) |
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| JP2005223665A (en) * | 2004-02-06 | 2005-08-18 | Tamagawa Electronics Co Ltd | Dielectric resonator and filter device |
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2019
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