CN201163653Y - Inclusive cross coupling structure used for coaxial cavity wave filter - Google Patents
Inclusive cross coupling structure used for coaxial cavity wave filter Download PDFInfo
- Publication number
- CN201163653Y CN201163653Y CNU2007200774012U CN200720077401U CN201163653Y CN 201163653 Y CN201163653 Y CN 201163653Y CN U2007200774012 U CNU2007200774012 U CN U2007200774012U CN 200720077401 U CN200720077401 U CN 200720077401U CN 201163653 Y CN201163653 Y CN 201163653Y
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- Prior art keywords
- coupling structure
- cross coupling
- coaxial cavity
- strutting piece
- spiral shell
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Abstract
The utility model provides a capative cross coupling structure used for a coaxial cavity body filter, comprising a supporting piece and an M3 adjusting screw or two flange plates, wherein, the lower part of the supporting piece is provided with a screw hole running through the two opposite lateral surfaces, the M3 adjusting screw passes through the screw hole of the supporting piece and is connected with the lower part of the supporting piece; and the two flange plates are respectively connected on the two ends of the M3 adjusting screw to form a dumbbell-shaped structure. Compared with the prior art, the capative cross coupling structure guarantees the consistency, the stability and the reliability of products.
Description
Technical field
The utility model relates to the filter in the field of wireless communication, particularly a kind of capacitive cross coupling structure that is used for coaxial cavity filter.
Background technology
Along with developing rapidly of wireless telecommunication system, the requirement to mass of system simultaneously also improves constantly, and in order to prevent to have in the required frequency range interference of other signal, improves the utilance of frequency range.System operator is more and more higher to the performance requirement of filter.
As element with distributed parameters,, constitute band pass filter by 1/4 wavelength coaxial cavity filter,, determine type, progression, the structure of filter according to related wave filter technology index with the capacitive coupling of lumped parameter; To the cross-couplings with precipitous band external characteristic be with four chambeies intersect and three chamber cross-couplings forms as element circuit, the band on the road of having found respectively to economize on electricity when continuous transmits independence separately at zero point outward, these characteristics make the filter of this structure regulate easily.
In traditional coaxial cavity filter, the cross-linked way of realization of capacitive is that the form with copper wire or copper sheet realizes, can save certain cost though this form is easy to make, ignore consistency of product and stability, bring problem to production in enormous quantities.
The utility model content
The purpose of this utility model is exactly to provide a kind of capacitive cross coupling structure that is used for coaxial cavity filter for the defective that overcomes above-mentioned prior art existence.
The purpose of this utility model technical scheme is: a kind of capacitive cross coupling structure that is used for coaxial cavity filter comprises:
Strutting piece is rectangle column structural member, and its underpart is provided with the screw that connects two relative side;
M3 transfers spiral shell, and its screw that passes strutting piece is connected the bottom of strutting piece.
Also comprise two ring flanges, two ring flanges are connected to M3 and transfer the two ends of spiral shell to form dumbbell-shaped structure.
Described strutting piece adopts the PTFE material, and described M3 transfers spiral shell and ring flange all to adopt the silver-plated material of brass.
The bottom surface of described strutting piece is provided with the groove that usefulness is installed.
Compared with prior art, the utlity model has following advantage:
(1) guaranteed consistency of product:
Copper wire formula capacitive cross-couplings and the cross-linked manufacturing process of copper sheet formula capacitive all are home builts, though can come measurement size with vernier caliper, the tolerance of slide calliper rule adds the tolerance of manual bending.For the first time, be difficult to guarantee consistency with the size of making for the second time deviation to some extent just.
Dumbbell type capacitive cross-couplings of the present utility model completes by anchor clamps, finishes as long as corresponding assembly is placed on the corresponding position assembling, so just can guarantee the consistency that different people assembles.
(2) guaranteed the stability of product:
When pack into copper wire formula capacitive cross-couplings or the cross-linked coaxial cavity filter of copper sheet formula capacitive were debugged, different commissioning staffs had different adjustment methods; Copper wire and copper sheet are easy to be changed shape, if repeat to bend or collude the phenomenon that fracture can occur, can influence the stability of product like this.
When the cross-linked coaxial cavity filter of capacitive of the present utility model of packing into is debugged, though different commissioning staffs has different adjustment methods, but do not need the commissioning staff that cross-couplings is regulated again in the debug process, stability of structure is conspicuous.
(3) guaranteed reliability of products:
When copper wire formula capacitive cross-couplings and the cross-linked product of copper sheet formula capacitive are equipped with in debugging, the adjustor adjusts back (promptly colluding copper wire or copper sheet) to the power of electric capacity, under the situation that product jolts when high low temperature or vibrations and transportation, the performance of product changes possibly; If copper wire formula capacitive cross-couplings that in the product of power requirement is arranged, occurs colluding or copper sheet formula capacitive cross-couplings, also may emergent power the phenomenon of sparking.
When the cross-linked product of capacitive of the present utility model was equipped with in debugging, the adjustor was or to weld again and to adjust by the accent spiral shell of replacing different length if will adjust the power of electric capacity, still will guarantee by anchor clamps when assembling once more.Ring flange and M3 transfer spiral shell also to spin by screw thread simultaneously; Can not be affected under such duplicate protection jolts product when high low temperature or vibrations and transportation the situation yet; The probability that in to the product that power requirement is arranged spark phenomenon takes place also can reduce greatly.
Description of drawings
Fig. 1 is the structural representation of the utility model first embodiment;
Fig. 2 is the structural representation of the utility model second embodiment;
Fig. 3 is the structural representation of the strutting piece in the utility model;
Fig. 4 is the user mode schematic diagram of the utility model first embodiment;
Fig. 5 is the user mode schematic diagram of the utility model second embodiment.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
Referring to Fig. 1, Fig. 2, the utility model is used for the capacitive cross coupling structure of coaxial cavity filter, comprises that strutting piece 1, M3 transfer spiral shell 2, or also comprises two ring flanges 3.
Referring to Fig. 3, the strutting piece 1 in the utility model adopts the PTFE material, is rectangle column structural member, and its underpart is provided with the screw 11 that connects two relative side, and the side of two no screws and bottom surface are provided with the groove 12 that usefulness is installed in addition.
M3 transfers spiral shell 2 to adopt the silver-plated material of brass, and its screw 11 that passes strutting piece is connected the bottom of strutting piece.
Two ring flanges 3 adopt the silver-plated material of brass, and it is connected to M3 and transfers the two ends of spiral shell to form dumbbell-shaped structure.
Fig. 4 is the user mode schematic diagram of the utility model first embodiment; This is a kind of weak capacitive cross coupling structure.Be suitable for the cross-couplings amount hour, directly transfer spiral shell to realize with M3.
Shown in the figure, 1 is strutting piece, and 2 for M3 transfers spiral shell, and 4 is the resonance post, and 5 for transferring spiral shell; 6 is nut, and 7 is hold-down screw, and 8 is the cavity cover plate, and 9 is cavity.
Manufacture method is: transfer spiral shell 2 to screw in the strutting piece 1 M3 and make the capacitive cross-couplings, the capacitive cross-couplings that completes is packed in the groove of cavity 9 correspondences, the cavity of again resonance post 4 being packed into is with the cavity cover plate 8 and cavity 9 assemblings of transferring spiral shell 5, nut 6, hold-down screw 7 is housed.
Fig. 5 is the user mode schematic diagram of the utility model second embodiment.This is a kind of strong capacitive cross coupling structure, is suitable for the cross-couplings amount when strong, transfers the two ends of spiral shell 2 to add ring flange 3 at M3 and realizes.
Shown in the figure, 1 is strutting piece, and 2 for M3 transfers spiral shell, and 3 is ring flange, and 4 is the resonance post, and 5 for transferring spiral shell; 6 is nut, and 7 is hold-down screw, and 8 is the cavity cover plate, and 9 is cavity.
Manufacture method is: transfer spiral shell 2 to screw in the strutting piece 1 M3, ring flange 3 being spun on M3 transfers the two ends of spiral shell 2 to make the capacitive cross-couplings again, with the capacitive cross-couplings that the completes cavity 9 of packing into, the cavity of again resonance post 4 being packed into is with the cavity cover plate 8 and cavity 9 assemblings of transferring spiral shell 5, nut 6, hold-down screw 7 is housed.
Claims (4)
1. capacitive cross coupling structure that is used for coaxial cavity filter is characterized in that comprising:
Strutting piece is rectangle column structural member, and its underpart is provided with the screw that connects two relative side;
M3 transfers spiral shell, and its screw that passes strutting piece is connected the bottom of strutting piece.
2. the capacitive cross coupling structure that is used for coaxial cavity filter according to claim 1 is characterized in that: also comprise two ring flanges, two ring flanges are connected to M3 and transfer the two ends of spiral shell to form dumbbell-shaped structure.
3. a kind of capacitive cross coupling structure that is used for coaxial cavity filter according to claim 1 and 2 is characterized in that: described strutting piece adopts the PTFE material, and described M3 transfers spiral shell and ring flange all to adopt the silver-plated material of brass.
4. a kind of capacitive cross coupling structure that is used for coaxial cavity filter according to claim 1 and 2 is characterized in that: the bottom surface of described strutting piece is provided with the groove that usefulness is installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200774012U CN201163653Y (en) | 2007-12-27 | 2007-12-27 | Inclusive cross coupling structure used for coaxial cavity wave filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200774012U CN201163653Y (en) | 2007-12-27 | 2007-12-27 | Inclusive cross coupling structure used for coaxial cavity wave filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201163653Y true CN201163653Y (en) | 2008-12-10 |
Family
ID=40184581
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200774012U Expired - Fee Related CN201163653Y (en) | 2007-12-27 | 2007-12-27 | Inclusive cross coupling structure used for coaxial cavity wave filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201163653Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102025011A (en) * | 2009-09-22 | 2011-04-20 | 奥雷通光通讯设备（上海）有限公司 | Novel coaxial cavity resonator compatibility cross coupled assembly |
| CN113036358A (en) * | 2019-12-25 | 2021-06-25 | 深圳市大富科技股份有限公司 | Flying rod, flying rod assembly, cavity filter and communication equipment |
-
2007
- 2007-12-27 CN CNU2007200774012U patent/CN201163653Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102025011A (en) * | 2009-09-22 | 2011-04-20 | 奥雷通光通讯设备（上海）有限公司 | Novel coaxial cavity resonator compatibility cross coupled assembly |
| CN113036358A (en) * | 2019-12-25 | 2021-06-25 | 深圳市大富科技股份有限公司 | Flying rod, flying rod assembly, cavity filter and communication equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081210 Termination date: 20121227 |