CN207753147U - A kind of capacitive cross coupling - Google Patents
A kind of capacitive cross coupling Download PDFInfo
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- CN207753147U CN207753147U CN201820110610.0U CN201820110610U CN207753147U CN 207753147 U CN207753147 U CN 207753147U CN 201820110610 U CN201820110610 U CN 201820110610U CN 207753147 U CN207753147 U CN 207753147U
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- bar
- resonant
- winged
- resonant cavity
- flies
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Abstract
The utility model is related to a kind of capacitive cross couplings, including coupled chamber, resonant cavity A, resonant cavity B, the resonant cavity C being arranged side by side successively are equipped in coupled chamber, resonant rod A is equipped in resonant cavity A, resonant rod B is equipped in resonant cavity B, it is equipped with resonant rod C in resonant cavity C, sheet " u "-shaped is equipped between resonant rod A and resonant rod C and flies bar, sheet " u "-shaped flies the middle part of bar by insulating on the locating convex block that engineering plastics block is mounted on coupled chamber inner wall.The utility model flies bar using sheet " u "-shaped and realizes non-adjacent resonant rod coupling, has the characteristics of easy for installation, to save installation space.
Description
Technical field
The utility model is related to a kind of capacitive cross coupling, more particularly to a kind of resonant cavity that is suitable for is in the arrangement of dressing line
Capacitive cross coupling belongs to capacitive cross coupling field.
Background technology
It is general in the design of the passive radio frequency devices such as filter, combiner to have Out-of-band rejection or port isolation requirement,
Especially duplexer requires Out-of-band rejection very high, to meet these requirements is usually required for that cross-couplings is added to realize.Intersect
Coupling can be divided into capacitive cross coupling and perceptual two kinds of cross-couplings.Capacitive cross coupling is used for inhibiting the passband on the left side, perception
Be used for inhibit the right passband.Traditional capacitive cross coupling is to be packed into fly bar to realize between resonant cavity.Radiofrequency signal is from humorous
The bar 1 that shakes arrives resonant rod 2, then just must have a coupled signal from resonant rod 1 to resonant rod 3 if you need to increase zero to resonant rod 3,
The effect for flying bar is exactly the coupled signal for connecting resonant rod 1 and arriving resonant rod 3.This winged bar is applicable to most of situation, but right
Inside cavity structure there are certain requirements, i.e., resonant cavity must be with similar triangle row shape arrangement.Because size limits in actual product design
Problem processed can not often be arranged into cavity triangle row shape, and if cavity resonant chamber dressing line is arranged, the winged bar of tradition is not just pacified
Fill space.
Utility model content
The utility model capacitive cross coupling discloses new scheme, using sheet " u "-shaped fly bar realize it is non-adjacent humorous
The bar that shakes couples, and solves the problems, such as that existing scheme can not be installed winged bar by the constraint of inside cavity installation dimension.
The utility model capacitive cross coupling includes coupled chamber, and the resonant cavity being arranged side by side successively is equipped in coupled chamber
A, resonant cavity B, resonant cavity C, resonant cavity A is interior to be equipped with resonant rod A, resonant rod B is equipped in resonant cavity B, resonant cavity C is interior equipped with resonance
Bar C is equipped with sheet " u "-shaped and flies bar between resonant rod A and resonant rod C, the middle part that sheet " u "-shaped flies bar passes through the engineering plastics block that insulate
On the locating convex block on coupled chamber inner wall.
Further, the coupled chamber of this programme offers winged bar with respect to the side of resonant cavity coupled end and installs long through-hole, piece
Shape " u "-shaped flies bar and installs long through-hole loading coupled chamber by flying bar.
Further, it includes the winged bar coupled end for being located at both ends that the sheet " u "-shaped of this programme, which flies bar, flies bar coupled end by flying
Linkage section is connected in the middle part of bar, and it includes flying bar coupling piece to fly bar coupled end, flies bar coupling piece by flying bar coupled end linkage section
It is connect with linkage section in the middle part of winged bar.
Further, the winged bar coupled end linkage section of this programme is connect with linkage section in the middle part of winged bar by inner circle corner structure,
Fly bar coupled end linkage section to connect by rounded structure with winged bar coupling piece.
Further, the width of the winged bar coupled end linkage section of this programme is 6mm, and the width for flying bar coupling piece is 11mm.
Further, the material that the sheet " u "-shaped of this programme flies bar is copper, and the material of the insulation engineering plastics block is poly- four
Vinyl fluoride.
The utility model capacitive cross coupling flies bar using sheet " u "-shaped and realizes non-adjacent resonant rod coupling, has peace
The characteristics of dress is convenient, saving installation space.
Description of the drawings
Fig. 1 is the schematic diagram of the utility model capacitive cross coupling.
Fig. 2 is the schematic top plan view of capacitive cross coupling in Fig. 1.
Fig. 3 is the schematic diagram that sheet " u "-shaped flies bar mounting structure.
Wherein, 100 be coupled chamber, and 211 be resonant rod A, and 221 be resonant rod B, and 231 be resonant rod C, and 300 be sheet
" u "-shaped flies bar, and 311 be to fly bar coupling piece, and 312 be to fly bar coupled end linkage section.
Specific implementation mode
The content of the utility model is illustrated below in conjunction with attached drawing.
As shown in Figure 1, the schematic diagram of the utility model capacitive cross coupling.Capacitive cross coupling includes coupled chamber, coupling
Resonant cavity A, resonant cavity B, the resonant cavity C for being equipped in cavity and being arranged side by side successively are closed, resonant rod A, resonant cavity are equipped in resonant cavity A
It is equipped with resonant rod B in B, resonant rod C is equipped in resonant cavity C, sheet " u "-shaped is equipped between resonant rod A and resonant rod C and flies bar, sheet
" u "-shaped flies the middle part of bar by insulating on the locating convex block that engineering plastics block is mounted on coupled chamber inner wall.For achievement unit
Part function and good insulation fixed function, it is copper that the sheet " u "-shaped of this programme, which flies the material of bar, the insulation engineering plastics block
Material be polytetrafluoroethylene (PTFE).For the ease of winged bar is packed into cavity, the coupled chamber of this programme is with respect to resonant cavity coupled end
Side offers winged bar installation long through-hole, and sheet " u "-shaped flies bar and installs long through-hole loading coupled chamber by flying bar.
In order to realize the function of coupling, it includes the winged bar coupled end for being located at both ends that the sheet " u "-shaped of this programme, which flies bar, flies bar
Coupled end is connected by flying linkage section in the middle part of bar, and it includes flying bar coupling piece to fly bar coupled end, flies bar coupling piece by flying bar
Coupled end linkage section is connect with linkage section in the middle part of winged bar.On this basis, in order to improve the structural behaviour of winged bar, this programme flies
Bar coupled end linkage section is connect with linkage section in the middle part of winged bar by inner circle corner structure, and bar coupled end linkage section and winged bar coupling piece are flown
It is connected by rounded structure.The width of the winged bar coupled end linkage section of this programme is preferably 6mm, and the width for flying bar coupling piece is preferred
It is 11mm.
This programme discloses a kind of passive radio frequency device, solves because cavity can not be often arranged into triangle by size limitation
Row shape causes tradition to fly the problem of bar is just fitted without space, such as the case where resonant cavity is arranged by dressing line in cavity.Such as Fig. 2
Shown, resonant rod A, B, C arrange by dressing line, and resonant rod A to C needs a coupled signal, and at this time the winged bar of tradition does not just have
Installation space.The winged bar of this programme is U-shaped sheet copper sheet, and cavity, intermediate two PTFE supports, structure letter are packed into from cavity top
It is monostable fixed.Cross-linked power is adjusted by adjusting the spacing of winged bar and resonant rod, flexibility is very strong.Sometimes need
Very strong cross-couplings, the winged bar of tradition is only strong and weak to change winged bar by adjusting the size of disk and resonance distance between tie rods, and spacing is too
Closely it is possible that the phenomenon that striking sparks, disk too greatly again can be too small from the spacing of resonant rod or cavity.The sheet of this programme flies bar
It can be coupled by adjusting winged bar piece size to adjust, because resonant rod and winged pole face are all an entire planes, increase coupling surface
Product, and flying bar piece is packed at the top of cavity, it is possible to realize very strong cross-couplings.As shown in figure 3, flying wide above bar
Degree be 6mm, below width be 11mm.Because flying bar is packed at the top of cavity, prodigious there is no need to open at the top of such cavity
Mounting hole saves space, is conducive to device miniaturization.It is vertically connected with part and increases fillet, increase winged bar intensity, make product more
Add stabilization.Based on the above feature, the capacitive cross coupling of this programme has substantive features and progress compared to existing scheme.
The capacitive cross coupling of this programme is not limited to content disclosed in specific implementation mode, the skill occurred in embodiment
Art scheme can be extended based on the understanding of those skilled in the art, and those skilled in the art are according to this programme combination common knowledge
The simple replacement scheme made also belongs to the range of this programme.
Claims (6)
1. a kind of capacitive cross coupling, it is characterized in that include coupled chamber, it is equipped in the coupled chamber and is arranged side by side successively
Resonant cavity A, resonant cavity B, interior be equipped in resonant rod A, the resonant cavity B of resonant cavity C, the resonant cavity A are equipped with resonant rod B, institute
It states and is equipped with resonant rod C in resonant cavity C, sheet " u "-shaped is equipped between the resonant rod A and the resonant rod C and flies bar, the sheet
" u "-shaped flies the middle part of bar by insulating on the locating convex block that engineering plastics block is mounted on the coupled chamber inner wall.
2. capacitive cross coupling according to claim 1, which is characterized in that the relatively described resonant cavity coupling of the coupled chamber
The side for closing end offers winged bar installation long through-hole, and the sheet " u "-shaped flies bar and installs long through-hole loading institute by the winged bar
State coupled chamber.
3. capacitive cross coupling according to claim 1, which is characterized in that it includes being located at two that the sheet " u "-shaped, which flies bar,
The winged bar coupled end at end, the winged bar coupled end are connected by flying linkage section in the middle part of bar, and the winged bar coupled end includes flying
Bar coupling piece, the winged bar coupling piece are connect by flying bar coupled end linkage section with linkage section in the middle part of the winged bar.
4. capacitive cross coupling according to claim 3, which is characterized in that the winged bar coupled end linkage section flies with described
Linkage section is connected by inner circle corner structure in the middle part of bar, and the winged bar coupled end linkage section passes through fillet knot with the winged bar coupling piece
Structure connects.
5. capacitive cross coupling according to claim 3, which is characterized in that the width of the winged bar coupled end linkage section is
The width of 6mm, the winged bar coupling piece are 11mm.
6. capacitive cross coupling according to claim 1, which is characterized in that the material that the sheet " u "-shaped flies bar is copper,
The material of the insulation engineering plastics block is polytetrafluoroethylene (PTFE).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820110610.0U CN207753147U (en) | 2018-01-23 | 2018-01-23 | A kind of capacitive cross coupling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820110610.0U CN207753147U (en) | 2018-01-23 | 2018-01-23 | A kind of capacitive cross coupling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207753147U true CN207753147U (en) | 2018-08-21 |
Family
ID=63153665
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820110610.0U Active CN207753147U (en) | 2018-01-23 | 2018-01-23 | A kind of capacitive cross coupling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207753147U (en) |
-
2018
- 2018-01-23 CN CN201820110610.0U patent/CN207753147U/en active Active
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