CN207868365U - A kind of transition transmission structure of novel class GCPW - Google Patents
A kind of transition transmission structure of novel class GCPW Download PDFInfo
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- CN207868365U CN207868365U CN201820214998.9U CN201820214998U CN207868365U CN 207868365 U CN207868365 U CN 207868365U CN 201820214998 U CN201820214998 U CN 201820214998U CN 207868365 U CN207868365 U CN 207868365U
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- gcpw
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Abstract
The utility model discloses a kind of transition transmission structures of novel class GCPW, including microwave-medium and the micro-strip transmission structure that is made of microstrip line in multi-layer PCB top layer is arranged, the both sides of the microstrip line are with being each provided with metal, a class GCPW structure is added in the end of the microstrip line, the microstrip line and the joining place of class GCPW structures are arc-shaped transition structure, the shape of the class GCPW structures is conical funnel shape, and the metal is provided with metal-filled holes close at class GCPW structures on the ground.Using class GCPW transition structures, solve the problems, such as before it is discontinuous in the case of narrow band transmission so that have good standing wave matching properties in wide-band.
Description
Technical field
It is the utility model is related to a kind of broadband transmission transition structure based on class GCPW, more particularly to a kind of to apply in multilayer
Broadband transmission structure of printed board or discontinuous the radio frequency ground between microstrip line, belongs to microwave technical field.
Background technology
In radio frequency transmission field, microstrip line is passed through frequently as radio signal transmission form.Microstrip line has simple, easy processing spy
Point, is widely used in RF application.GCPW is another radio signal transmission form, medium bottom, transmission line both sides all
With having radio frequency, there is higher shielding action.When microstrip line transmits, earth signal needs continuously, otherwise to make discontinuous
Side generates mismatch, leads to that standing wave signal is big, Insertion Loss is big.GCPW i.e. dependence medium, and with relying on transmission line both sides simultaneously, on ground
When discontinuous, it can still result in that standing wave signal is big, Insertion Loss is big.
When two multi-layer board top layer microstrip lines transmit, signal ground can be made discontinuously to lead to mismatch.It is in engineering at present
It solving the problems, such as this, distribution LC adjustings is carried out in discontinuous section so that the narrowband slice standing waves of needs is small, Insertion Loss is small,
But broadband cannot achieve.
Utility model content
The purpose of this utility model for the problem that it is current it is discontinuous in the case of, microstrip line is difficult to broadband transmission, proposes
A kind of novel class GCPW transition structures, it can be achieved that present case the transmission of good Broadband Matching.
To achieve the above object, the utility model provides the following technical solutions：
A kind of transition transmission structure of novel class GCPW, including be arranged in the microwave-medium of multi-layer PCB top layer and by micro-
Micro-strip transmission structure with line composition, with being each provided with metal, the end of the microstrip line adds one for the both sides of the microstrip line
The joining place of a class GCPW structures, the microstrip line and class GCPW structures is arc-shaped transition structure, the shape of the class GCPW structures
Shape is conical funnel shape, and the metal is provided with metal-filled holes close at class GCPW structures on the ground.
A diameter of 0.2mm of the metal-filled holes.
When two multi-layer PCB radio frequencies connect, the gap between two multi-layer PCBs is less than 0.1mm, between two class GCPW structures
At least two bonding gold wires is used to overlap, 1 bonding gold wire overlap joint is respectively adopted between adjacent two metal ground.
The length of the bonding gold wire is less than 0.15mm.
Advantageous effect：Using class GCPW transition structures, solve the problems, such as before it is discontinuous in the case of narrow band transmission, make
It obtains and has good standing wave matching properties in wide-band.
Description of the drawings
Attached drawing is used to provide a further understanding of the present invention, and a part for constitution instruction, with this practicality
Novel embodiment for explaining the utility model, does not constitute limitations of the present invention together.
Fig. 1 is the transition transmission structure schematic diagram of class GCPW.
Fig. 2 is the side view of Fig. 1.
Connection diagram between the transition transmission structure that Fig. 3 is class GCPW.
Fig. 4 is the side view of Fig. 3.
Figure label：1- microwave-mediums, 2- micro-strip transmission structures, 3- class GCPW structures, 4- metals, 5- microstrip lines, 6-
Metal-filled holes, 7- bonding gold wires, 8- multi-layer PCBs.
Specific implementation mode
The preferred embodiment of the utility model is illustrated below in conjunction with attached drawing, it should be understood that described herein excellent
It selects embodiment to be only used for describing and explaining the present invention, is not used to limit the utility model.
As depicted in figs. 1 and 2, a kind of transition transmission structure of novel class GCPW, including be arranged in 8 top layer of multi-layer PCB
Microwave-medium 1 and the micro-strip transmission structure 2 that is made of microstrip line 5, in the both sides of microstrip line 5 with being each provided with metal 4, micro-
A class GCPW structure 3 is added in end with line 5, and the joining place of microstrip line 5 and class GCPW structures 3 is arc-shaped transition structure, class
The shape of GCPW structures 3 is conical funnel shape, in metal is provided with metal-filled holes 6 close at class GCPW structures 3 on 4,
Metal-filled holes（6）A diameter of 0.2mm.
As shown in Figure 3 and Figure 4, when two 8 radio frequencies of multi-layer PCB connect, the gap between two multi-layer PCBs 8 is less than
0.1mm at least uses two bonding gold wires 7 to overlap between two class GCPW structures 3, and 1 key is respectively adopted to adjacent two metal between 4
B alloy wire 7 overlaps, and the length of the bonding gold wire 7 of use is less than 0.15mm.
In actual production, according to the dielectric constant and thickness h of multi-layer PCB top layer microwave-medium 1, conjunction is designed first
Suitable microstrip transmission line structure 2, micro-strip line width are w.In the end of microstrip line, a class GCPW structure 3 is added, shape is circle
Conical hopper shape（Or it is similar tallboy shape）, class GCPW structures 3 are arc-shaped transition with being connected for microstrip line, i.e., in microstrip line
End carries out the processing that broadens, while placing two ground pads respectively in microstrip line end both sides.Class GCPW structures 3 herein are close
GCPW structures are similar to, but are differed with GCPW sizes, the intermediate structure of microstrip line and GCPW is similar to.The ground of microstrip line is straight line
Ground extends to transmission line both sides at class GCPW.By class GCPW transition structures herein may make energy it is main subject to TEM
（Transverse Electric and Magnetic Field）Wave.Two microstrip line ends to be connected all use this structure,
It is used in combination bonding gold wire to realize interconnection.By the structure of the optimization, may make energy on the microstrip line subject to TEM waves, bonding gold
It is TEM waves at silk interconnection.Transmission energy can carry out broadband transmission in this transition structure.
Claims (4)
1. a kind of transition transmission structure of novel class GCPW, including be arranged in multi-layer PCB（8）The microwave-medium of top layer（1）With
By microstrip line（5）The micro-strip transmission structure of composition（2）, the microstrip line（5）Both sides with being each provided with metal（4）, feature
It is：The microstrip line（5）End add a class GCPW structure（3）, the microstrip line（5）With class GCPW structures（3）'s
Joining place is arc-shaped transition structure, the class GCPW structures（3）Shape be conical funnel shape, the metal（4）On connect
Nearly class GCPW structures（3）Place is provided with metal-filled holes（6）.
2. the transition transmission structure of novel class GCPW according to claim 1 a kind of, it is characterised in that：The metal is filled out
Fill hole（6）A diameter of 0.2mm.
3. the transition transmission structure of novel class GCPW according to claim 1 or 2 a kind of, it is characterised in that：At two
Multi-layer PCB（8）When radio frequency connects, two multi-layer PCBs（8）Between gap be less than 0.1mm, two class GCPW structures（3）Between at least
Using two bonding gold wires（7）Overlap joint, adjacent two metal（4）Between 1 bonding gold wire is respectively adopted（7）Overlap joint.
4. the transition transmission structure of novel class GCPW according to claim 3 a kind of, it is characterised in that：The bonding gold
Silk（7）Length be less than 0.15mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820214998.9U CN207868365U (en) | 2018-02-07 | 2018-02-07 | A kind of transition transmission structure of novel class GCPW |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820214998.9U CN207868365U (en) | 2018-02-07 | 2018-02-07 | A kind of transition transmission structure of novel class GCPW |
Publications (1)
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| CN207868365U true CN207868365U (en) | 2018-09-14 |
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| CN201820214998.9U Active CN207868365U (en) | 2018-02-07 | 2018-02-07 | A kind of transition transmission structure of novel class GCPW |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108232388A (en) * | 2018-02-07 | 2018-06-29 | 江苏华讯电子技术有限公司 | A kind of transition transmission structure of novel class GCPW |
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2018
- 2018-02-07 CN CN201820214998.9U patent/CN207868365U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108232388A (en) * | 2018-02-07 | 2018-06-29 | 江苏华讯电子技术有限公司 | A kind of transition transmission structure of novel class GCPW |
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