CN104934670A - A low-loss flat transmission line - Google Patents
A low-loss flat transmission line Download PDFInfo
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- CN104934670A CN104934670A CN201510387696.2A CN201510387696A CN104934670A CN 104934670 A CN104934670 A CN 104934670A CN 201510387696 A CN201510387696 A CN 201510387696A CN 104934670 A CN104934670 A CN 104934670A
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Abstract
The invention brings forward a low-loss flat transmission line comprising a portion which can be bent and a portion which can not be bent. The portion which can be bent and the portion which can not be bent use a common intermediate layer. The intermediate layer comprises at least two dielectric layers, at least one intermediate connecting layer and at least one bonding layer. Each connecting layer is positioned between two dielectric layers or between the corresponding dielectric layer and the connecting layer to realize a bonding effect. The upper surface and the lower surface of the intermediate layer of the portion which can not be bent are respectively provided with a first connecting layer and a second connecting layer. The upper surface and the lower surface of the intermediate layer of the portion which can be bent are respectively provided with a first flexible conductive connecting layer and a second flexible conductive connecting layer to realize conduction. The surfaces, far from the intermediate layer, of the first connecting layer and the second connecting layer are both provided with insulating layers. The transmission line of the present invention is high in dynamic bending performance, long in usage life, and is workable. The transmission line can satisfy demands of markets.
Description
Technical field
The present invention relates to communications electronics field of signal transmissions, be specifically related to a kind of low-loss flat transmission line for signal transmission and energy, can be used for the Signal transmissions to the higher communications electronics field of signal transmission requirement such as mobile phone, panel computer, computer.
Background technology
A kind of low-loss flat transmission line is disclosed in the CN103117440B patent of invention of Patent Office of the People's Republic of China, comprise multilayer articulamentum, be located at dielectric layer between multilayer articulamentum, and between articulamentum, dielectric layer, play the adhesive layer of adhesive effect, in order to the leakage or the interference that enable transmission line shield internal/external signal, between the first articulamentum and the second articulamentum, offered multiple via, via is evenly distributed in transmission line.Because the transmission line after multilayer material pressing has certain thickness, generally speaking articulamentum is all made up of electric conducting materials such as metals, hardness is larger, and via evenly spreads on the whole length direction of transmission line, thus the dynamic bending performance of this transmission line is poor, and the thicker bending performance of transmission line is poorer, and reckon without the utilization of transmission line in the occasion of dynamically bending, in the occasion that some transmission lines dynamically use, for example in laptop computer, be starved of some transmission lines and meet the performance requirement that can dynamically bend many times, and above-mentioned transmission line due to dynamic bending performance poor, broken string is easy in the use repeatedly bent, useful life is short.
Summary of the invention
Object to be solved by this invention is to provide a kind of low-loss flat transmission line, and dynamic bending performance is high, and long service life is easily processed, and can meet the demand in market.
For solving the problem, the present invention proposes a kind of low-loss flat transmission line, and comprise bent part and not bending part, described bent part and not bending part share an intermediate layer; Described intermediate layer comprises at least two layer medium layer, at least one deck intermediate connecting layer and at least one deck adhesive layer, and each articulamentum is between two dielectric layers, and each adhesive layer plays adhesive effect between two dielectric layers or between dielectric layer and articulamentum;
The upper and lower surface in described not bending part intermediate layer is respectively equipped with the first articulamentum and the second articulamentum, the upper and lower surface in described bent part intermediate layer is respectively equipped with the first compliant conductive articulamentum and the second compliant conductive articulamentum, and the first compliant conductive articulamentum and the second compliant conductive articulamentum are connected the first articulamentum and the second articulamentum respectively with conducting;
First articulamentum and second articulamentum of described not bending part are equipped with insulating barrier away from the surface in intermediate layer.
According to one embodiment of present invention, described intermediate layer comprises the first medium layer, intermediate connecting layer, adhesive layer and the second dielectric layer that stack gradually.
According to one embodiment of present invention, the first articulamentum of described not bending part, intermediate layer and the second articulamentum are provided with the multiple vias for the first articulamentum and the second articulamentum conducting; Described bent part is not provided with via.
According to one embodiment of present invention, intermediate connecting layer described in is provided with a signal line, the both sides of holding wire have been configured to pass some described vias; Or be provided with at least two signal line on intermediate connecting layer described in, between each holding wire and the both sides of holding wire have all been configured to pass some described vias.
According to one embodiment of present invention, the shape of described holding wire is straight line or curve.
According to one embodiment of present invention, the first articulamentum of described not bending part and each end of the second articulamentum are equipped with at least one signal island and at least one gap.
According to one embodiment of present invention, also comprise the signal terminal that two are arranged on first articulamentum two ends respectively, holding wire stretches out the first articulamentum from the two ends of intermediate connecting layer, two signal terminals connection signal line signal is drawn out to outside transmission line respectively, insulating barrier on first articulamentum is provided with for the respective openings through signal terminal, and the heart yearn pad of signal terminal is fixed on this first articulamentum.
According to one embodiment of present invention, also comprise the stiffener for strengthening fixing described signal terminal, it is located at two ends of transmission line and compresses end.
According to one embodiment of present invention, the material of described first compliant conductive articulamentum and the second compliant conductive articulamentum is conducting foam or conducting resinl.
According to one embodiment of present invention, the base material of each described adhesive layer is low temperature adhesion material or high temperature adhesives material.
After adopting technique scheme, the present invention has following beneficial effect compared to existing technology: transmission line branch is become bent part and not bending part, what the intermediate layer upper and lower surface of bent part was arranged is the first comparatively soft compliant conductive articulamentum and the second compliant conductive articulamentum of individual layer, thinning transmission line to greatest extent, and be connected conducting with the first articulamentum of not bending part with the second articulamentum, thus realize the shield effectiveness of internal/external signal, insulating barrier is not established on this two compliant conductives articulamentum, the transmission line formed can dynamically bend more than 30,000 number of times in bent part, long service life.
In addition, the multiple vias being used for connecting the most upper and lower two articulamentums of transmission line are only arranged on not bending part, further increase the dynamic bending performance of bent part.
Accompanying drawing explanation
Fig. 1 is the cross-sectional view of the bent part of the low-loss flat transmission line of one embodiment of the invention;
Fig. 2 is the cross-sectional view of the not bending part of the low-loss flat transmission line of one embodiment of the invention;
Fig. 3 is the perspective view of the low-loss flat transmission line of one embodiment of the invention;
Fig. 4 is the exploded perspective view of the low-loss flat transmission line of one embodiment of the invention;
Fig. 5 is that each layer plane after the blast of the low-loss flat transmission line of Fig. 4 launches schematic diagram;
Fig. 6 is the enlarged diagram of the articulamentum 212 of Fig. 5;
Fig. 7 is the enlarged diagram of the articulamentum 23 of Fig. 5;
Fig. 8 is the enlarged diagram of the articulamentum 222 of Fig. 5.
Embodiment
For enabling above-mentioned purpose of the present invention, feature and advantage become apparent more, are described in detail the specific embodiment of the present invention below in conjunction with accompanying drawing.
Set forth a lot of detail in the following description so that fully understand the present invention.But the present invention can be much different from alternate manner described here to implement, those skilled in the art can when without prejudice to doing similar popularization when intension of the present invention, therefore the present invention is by the restriction of following public concrete enforcement.
The effect independent with adhesive layer of the independent effect of dielectric layer of the present invention, articulamentum and adhesive layer and dielectric layer disclosed in the patent of invention mentioned in background technology, articulamentum is substantially identical, and the dielectric layer brought due to the integrally-built difference of transmission line of the present invention, articulamentum is different with adhesive layer effect integrally will be described in detail below.
Transmission line be divide into bent part and not bending part by the present invention in the longitudinal direction, bending part can not bend certainly yet, this part can be identical with the transmission line mentioned in background technology, the relatively bent part of bending part does not bend, preferably do not act on the occasion needing dynamically bending in the application, bent part is then that suppleness is good, is suitable in the occasion of dynamically bending.
Referring to Fig. 1 and Fig. 3 to 5, bent part A is positioned at the middle part of transmission line, but is not restricted to middle part, can determine position and the size of bent part A according to practical matter.The intermediate layer of bent part A comprises the dielectric layer 111, intermediate connecting layer 231, adhesive layer 311 and the dielectric layer 121 that stack gradually, intermediate connecting layer 231 is provided with two holding wire L1 and L2, but should not be construed as the present embodiment and only can be set to two signal line, the radical of holding wire can also be other quantity.On dielectric layer 111, be provided with compliant conductive articulamentum 211, have compliant conductive articulamentum 221 at dielectric layer 121.The material of compliant conductive articulamentum 211 and compliant conductive articulamentum 221 can be the flexible electric conducting material such as conducting foam or conducting resinl, is connected conducting can plays good shield effectiveness with the not articulamentum 212 of bending part B with 222.
Bending part B is not positioned at the two-end part of transmission line, is not restricted to this position equally.The intermediate layer of bending part B does not comprise the dielectric layer 112, intermediate connecting layer 232, adhesive layer 312 and the dielectric layer 122 that stack gradually, and intermediate connecting layer 232 is provided with two holding wire L1 and L2, and the number of holding wire is not in this, as restriction.Bent part A and not bending part B are shared intermediate layers, dielectric layer 11 namely in Fig. 4 and Fig. 5, intermediate connecting layer 23, adhesive layer 31, dielectric layer 12, the intermediate layer of bending part B can not be considered as the extension of intermediate layer at its two ends of bent part A.Articulamentum 212 is provided with on dielectric layer 112, the articulamentum 212 at two ends all links together with the compliant conductive articulamentum 211 of bent part A, articulamentum 222 is had at dielectric layer 122, the articulamentum 222 at two ends all links together with the compliant conductive articulamentum 221 of bent part A, tie point is P1 and P2 in Fig. 3, realize shielding action, prevent internal signal from leaking and interference between transmission line.On articulamentum 212, be also provided with insulating barrier 41, under articulamentum 222, be also provided with insulating barrier 42, be used for realizing the insulation of this part.
In order to better play the bending performance of bent part, bent part A does not offer the via for each articulamentum conducting, and only offer via at not bending part B, referring to Fig. 2, via is exactly metallized via, be used for each articulamentum of conducting not bending part, namely through in articulamentum and intermediate layer conductive channel, each layer shows as the form in hole, referring to Fig. 6-8, each articulamentum of not bending part is equipped with corresponding multiple vias, these vias are evenly arranged, between be separated with and cause, other layers in certain intermediate layer are also offered the via corresponding consistent with these vias, in other words, the not articulamentum 212 of bending part B, intermediate layer and articulamentum 222 are provided with the multiple via H for articulamentum 212 and articulamentum 222 conducting, the better shield effectiveness of transmission line is realized by offering via, still ensure the good dynamic bending performance of bent part simultaneously.
An intermediate connecting layer 23 (signal articulamentum) is provided with holding wire, and the number of holding wire can be determined as the case may be, and the shape of holding wire can be straight line or curve.In one embodiment, if be provided with more than two holding wires on this intermediate connecting layer, then on intermediate connecting layer between each holding wire and signal line side all offered some vias (be exactly articulamentum 212, via that intermediate layer and articulamentum 222 are offered by between holding wire); If be only provided with a signal line on this intermediate connecting layer, so intermediate connecting layer offers this some via in the both sides of holding wire.Intermediate connecting layer 23 shown in Fig. 7 is only provided with a signal line L, and via H is opened in the both sides of the holding wire L of not bending part B.
Referring to Fig. 3 and Fig. 4, transmission line also comprises the signal terminal 5 that two are arranged on articulamentum 212 two ends respectively, articulamentum 212 two ends are in more roomy flat, holding wire stretches out articulamentum 212 from the two ends of intermediate connecting layer 23, two signal terminals 5 connection signal line signal is drawn out to outside transmission line respectively, insulating barrier 41 on articulamentum 212 is provided with for the respective openings through signal terminal 5, the heart yearn pad of signal terminal 5 is fixed on this articulamentum 212, can add strong adhesive power by some glue, some glue amount is depending on heart yearn pad size.
Continue referring to Fig. 3 and Fig. 4, transmission line insulating barrier 42 overleaf is also established the stiffener 6 for strengthening fixing described signal terminal 5, stiffener 6 is located at two ends of transmission line and compresses end, and the shape of stiffener 6 and the roomy flat pattern of other layers of transmission line end adapt.
The articulamentum 212 of bending part B and each end of articulamentum 222 are not equipped with at least one signal island and at least one gap.Fig. 6 is the front schematic view of articulamentum 212, the centre of end is provided with the signal island D1 of strip and the gap G1 around signal island D1, be used for isolating the electric property of copper coating M1 and adjustment transmission line, dash area be copper coating M1, copper coating M1 both sides be non-metallic areas N1.Fig. 7 is the front schematic view of articulamentum 222, circular signal island D2 and the gap G2 around signal island D2 is provided with near end, be used for isolating the electric property of copper coating M2 and adjustment transmission line, dash area be copper coating M2, copper coating M2 both sides be non-metallic areas N2.The shape in signal island and gap and size all can adjust as required.
In addition, signal island is also provided with the via of conducting articulamentum 212 and intermediate connecting layer 23, namely on the corresponding signal island of not bending part B, be provided with the via running through articulamentum 212 to intermediate connecting layer 23, the effect of this via be allow the signal of intermediate connecting layer 23 can be transferred to articulamentum 212 signal terminal on thus signal is drawn out to outside.
It should be noted that, the transmission line structure of 3 layers of articulamentum is illustrate only in accompanying drawing, but should be understood that, more multi-layered articulamentum can also be comprised, and the dielectric layer between articulamentum, according to circumstances between the layer needing physical adhesion, add adhesive layer, preferably, the base material of each adhesive layer is the jointing material of low temperature pressing, adopt common pressing machine pressing, without the need to high-temperature laminating stove, certainly, the base material of each adhesive layer also can be high temperature adhesives material, dielectric layer is used to transmitting energy (ripple), preferably, dielectric layer material is low loss dielectric material, certainly, the base material of dielectric layer can be arbitrarily can the dielectric material of transmitting energy, insulating barrier can protect articulamentum to play insulating effect, and the articulamentum in intermediate layer can be an only layer signal articulamentum, also can be signal articulamentum and the simultaneous multilayer articulamentum of ground articulamentum, signal articulamentum is in the centre of ground articulamentum, other number destination articulamentum can certainly be set to as required, each articulamentum in intermediate layer is folded between two dielectric layers, also connect by adhesive layer therebetween, or also can be the form (existing one side conductive medium layer material) of articulamentum and dielectric layer one, so just do not need adhesive layer.
Although the present invention with preferred embodiment openly as above; but it is not for limiting claim; any those skilled in the art without departing from the spirit and scope of the present invention; can make possible variation and amendment, the scope that therefore protection scope of the present invention should define with the claims in the present invention is as the criterion.
Claims (10)
1. a low-loss flat transmission line, is characterized in that, comprise bent part and not bending part, described bent part and not bending part share an intermediate layer; Described intermediate layer comprises at least two layer medium layer, at least one deck intermediate connecting layer and at least one deck adhesive layer, and each articulamentum is between two dielectric layers, and each adhesive layer plays adhesive effect between two dielectric layers or between dielectric layer and articulamentum;
The upper and lower surface in described not bending part intermediate layer is respectively equipped with the first articulamentum and the second articulamentum, the upper and lower surface in described bent part intermediate layer is respectively equipped with the first compliant conductive articulamentum and the second compliant conductive articulamentum, and the first compliant conductive articulamentum and the second compliant conductive articulamentum are connected the first articulamentum and the second articulamentum respectively with conducting;
First articulamentum and second articulamentum of described not bending part are equipped with insulating barrier away from the surface in intermediate layer.
2. low-loss flat transmission line as claimed in claim 1, it is characterized in that, described intermediate layer comprises the first medium layer, intermediate connecting layer, adhesive layer and the second dielectric layer that stack gradually.
3. low-loss flat transmission line as claimed in claim 1, is characterized in that, the first articulamentum of described not bending part, intermediate layer and the second articulamentum are provided with the multiple vias for the first articulamentum and the second articulamentum conducting; Described bent part is not provided with via.
4. low-loss flat transmission line as claimed in claim 3, it is characterized in that, intermediate connecting layer described in is provided with a signal line, the both sides of holding wire have been configured to pass some described vias; Or be provided with at least two signal line on intermediate connecting layer described in, between each holding wire and the both sides of holding wire have all been configured to pass some described vias.
5. low-loss flat transmission line as claimed in claim 4, it is characterized in that, the shape of described holding wire is straight line or curve.
6. low-loss flat transmission line as claimed in claim 4, is characterized in that, the first articulamentum of described not bending part and each end of the second articulamentum are equipped with at least one signal island and at least one gap.
7. low-loss flat transmission line as claimed in claim 6, it is characterized in that, also comprise the signal terminal that two are arranged on first articulamentum two ends respectively, holding wire stretches out the first articulamentum from the two ends of intermediate connecting layer, two signal terminals connection signal line signal is drawn out to outside transmission line respectively, insulating barrier on first articulamentum is provided with for the respective openings through signal terminal, and the heart yearn pad of signal terminal is fixed on this first articulamentum.
8. low-loss flat transmission line as claimed in claim 7, it is characterized in that, also comprise the stiffener for strengthening fixing described signal terminal, it is located at two ends of transmission line and compresses end.
9. low-loss flat transmission line as claimed in claim 1, it is characterized in that, the material of described first compliant conductive articulamentum and the second compliant conductive articulamentum is conducting foam or conducting resinl.
10. low-loss flat transmission line as claimed in claim 1, is characterized in that, the base material of each described adhesive layer is low temperature adhesion material or high temperature adhesives material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510387696.2A CN104934670B (en) | 2015-07-02 | 2015-07-02 | A kind of low-loss flat transmission line |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510387696.2A CN104934670B (en) | 2015-07-02 | 2015-07-02 | A kind of low-loss flat transmission line |
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| Publication Number | Publication Date |
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| CN104934670A true CN104934670A (en) | 2015-09-23 |
| CN104934670B CN104934670B (en) | 2018-04-27 |
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| CN201510387696.2A Active CN104934670B (en) | 2015-07-02 | 2015-07-02 | A kind of low-loss flat transmission line |
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Citations (7)
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| US5355105A (en) * | 1993-04-12 | 1994-10-11 | Angelucci Sr Thomas L | Multi-layer flexible printed circuit and method of making same |
| CN101321431A (en) * | 2007-06-04 | 2008-12-10 | 株式会社东芝 | Flexible printed circuit board and electronic apparatus |
| CN102378488A (en) * | 2010-08-23 | 2012-03-14 | 大唐移动通信设备有限公司 | Printed circuit board and design method thereof |
| CN103117440A (en) * | 2013-02-07 | 2013-05-22 | 上海安费诺永亿通讯电子有限公司 | Low-loss flat transmission line |
| CN104582240A (en) * | 2013-10-25 | 2015-04-29 | 富葵精密组件(深圳)有限公司 | Circuit board and circuit board manufacturing method |
| CN104733823A (en) * | 2015-04-14 | 2015-06-24 | 上海安费诺永亿通讯电子有限公司 | Bendable flat transmission line |
| CN204732509U (en) * | 2015-07-02 | 2015-10-28 | 上海安费诺永亿通讯电子有限公司 | A kind of low-loss flat transmission line |
-
2015
- 2015-07-02 CN CN201510387696.2A patent/CN104934670B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5355105A (en) * | 1993-04-12 | 1994-10-11 | Angelucci Sr Thomas L | Multi-layer flexible printed circuit and method of making same |
| CN101321431A (en) * | 2007-06-04 | 2008-12-10 | 株式会社东芝 | Flexible printed circuit board and electronic apparatus |
| CN102378488A (en) * | 2010-08-23 | 2012-03-14 | 大唐移动通信设备有限公司 | Printed circuit board and design method thereof |
| CN103117440A (en) * | 2013-02-07 | 2013-05-22 | 上海安费诺永亿通讯电子有限公司 | Low-loss flat transmission line |
| CN104582240A (en) * | 2013-10-25 | 2015-04-29 | 富葵精密组件(深圳)有限公司 | Circuit board and circuit board manufacturing method |
| CN104733823A (en) * | 2015-04-14 | 2015-06-24 | 上海安费诺永亿通讯电子有限公司 | Bendable flat transmission line |
| CN204732509U (en) * | 2015-07-02 | 2015-10-28 | 上海安费诺永亿通讯电子有限公司 | A kind of low-loss flat transmission line |
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| CN104934670B (en) | 2018-04-27 |
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Effective date of registration: 20191128 Address after: 314305 No.158 Zhonggang Road, Xitangqiao Street (Haiyan Economic Development Zone), Haiyan County, Jiaxing City, Zhejiang Province Patentee after: Amphenol Yongyi (Haiyan) Communication Electronics Co., Ltd Address before: 201108 No. 689 Shen Nan Road, Shanghai, Minhang District Patentee before: Shanghai Anfeinuoyongyi Communication Electronic Co., Ltd. |