CN105490017B - Capacitive coupling is grounded transmitting device and phase shifter network equipment - Google Patents
Capacitive coupling is grounded transmitting device and phase shifter network equipment Download PDFInfo
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- CN105490017B CN105490017B CN201410483108.0A CN201410483108A CN105490017B CN 105490017 B CN105490017 B CN 105490017B CN 201410483108 A CN201410483108 A CN 201410483108A CN 105490017 B CN105490017 B CN 105490017B
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Abstract
The present invention relates to a kind of capacitive coupling ground connection transmitting device (200,300,400) and phase shifter network equipment.It includes band line lid (2), band line substrate (12) and coupling block (8) that the capacitive coupling, which is grounded transmitting device, the coupling block (8) is disposed in band line lid (2) and between line substrate (12), wherein, band line lid (2) and coupling block (8) and with being coupled between line substrate (12) and coupling block (8) using capacitive coupling.Suitable capacitive coupling face can balance the electric current between inner cable and outer braid.So it can be realized and traditional equipment same good voltage standing wave ratio and phase performance.
Description
Technical field
The present invention relates to wireless communication techniques, and in particular, to a kind of capacitive coupling ground connection transmitting device and a kind of shifting
The phase device network equipment.
Background technique
Nowadays, what is developed with the explosion type of LTE network is for the good and stable passive of antenna for base station
The lasting demand of intermodulation performance (Passive Inter Modulation).It is well known that in addition to the material of antenna for base station part
Expect except quality, for antenna for base station PIM performance, the part of part junction is also very important a factor.Greatly
Junction is said not on body is metal to metal connection there is no PIM problem.But most of design cannot
Direct metal to metal is avoided to connect.So the present invention wishes to design a kind of equipment to substitute direct metal of today to gold
Category connection and S parameter performance having the same and reduction PIM risk.
In general, antenna for base station includes radiating dipole and feedback network.The effect of radiating dipole is for sending out to aerial
It send or receives radiofrequency signal from aerial, and the effect of feedback network is to receive radiofrequency signal from dipole and by RF energy
Among distribution to these dipoles.Nowadays, antenna for base station feedback network is tilted down due to enabling antenna main beam to guide
Purpose and become to become increasingly complex.There are some metal welding blocks among the feedback network based on blanking bar technology, be used as
The transmitting of coaxial cable and blanking bar line configures.These metal blocks by metallic screw and nut directly with metal substrate and the sky
Metal cover with line is connected.
The welding block is configured to have small contact surface.Small contact surface can improve PIM performance.Fig. 1 show according to
According to the schematic diagram 100 of the ground connection transmission device of the connection of the direct metal to metal of the prior art.It can be seen from the figure that band
Between line lid 2 and welding block 8 and welding block and between line substrate 12 use direct metal to metal connection then borrow
Help screw bolt and nut 13 to be fixed, wherein be connected with line 4 with the inner conductor of coaxial cable 7 and coaxial cable 7 it is outer
Conductor is connected with welding block 8, and then is connected to the ground together with band line lid 2 and with line substrate 12.
Screw and nut is tightened using suitable torque.Suitable torque can be avoided flow of metal and can also make
Metal welding block is obtained to be connected by limited pressure with metal substrate and with line lid.
Nevertheless, the pressure between joint face is in batch production due to part manufacturing quality, day linearly coupled etc.
And it can not be guaranteed well.So the present invention wishes to design the capacity coupled ground connection transmission device of one kind to replace gold
Belong to the configuration to metal.It, should because welding block, substrate and being isolated with line lid these three metal parts by dielectric film
The problem of equipment is not in contact surface quality and pressure.
Summary of the invention
According to it is above-mentioned to background technique and understanding, it is of the invention that the invention proposes a kind of electricity
Hold the ground connection transmission device of coupling, uses capacitive coupling method.The frequency signal can be via capacitive coupling from a part
Flow into another part.The equipment can compensate for grounding connection problem and the band line being balanced is fed back.
The capacitive coupling proposed according to the present invention is grounded transmitting device
Band line lid；
Band line substrate；And
Coupling block, the coupling block are disposed between the band line lid and the band line substrate, wherein
Capacitive coupling side is used between the band line lid and the coupling block and the band line substrate and the coupling block
Formula is coupled.
Compared to the connection type of traditional direct metal to metal, the band line lid and the coupling block and described
It is coupled between band line substrate and the coupling block using capacitive coupling, can ensure the i.e. passive intermodulation of better PIM
Performance, this point are most important for ground connection transmitting device.
In one embodiment according to the present invention, capacitive coupling ground connection transmitting device is in the band line lid and described
It include at least one layer of film between coupling block and/or between the band line substrate and the coupling block, correspondingly in the band line
It is formed between lid and the coupling block and/or between the band line substrate and the coupling block and is electrically isolated.
It will be understood by those of skill in the art that film herein can be PET film, wherein PET film is only example
Property, and not restrictive, it will be understood by those of skill in the art that it is also feasible for can be realized capacity coupled other modes
, and the implementation of PET film is only a kind of preferred mode, is easily achieved and manufacturing cost is low, it is even more important
Be that can ensure good passive intermodulation performance.
In one embodiment according to the present invention, at least one layer of film between line lid and the coupling block and institute
It states and is integrally formed at least one layer of film between line substrate and the coupling block, and then simplify assembly and manufacture difficulty.
In one embodiment according to the present invention, the capacitive coupling ground connection transmitting device further includes plastic screw, institute
Plastic screw is stated for the band line lid to be fixed to the band line substrate.
Replace traditional metallic screw nut that can then better assure indirect metal to metal with plastic screw
Connection, and then ensure with line lid and coupling block and coupling block and with the capacitive coupling connection between line substrate.
In one embodiment according to the present invention, the capacitive coupling ground connection transmitting device further includes coaxial cable and band
Line, the inner conductor of the coaxial cable are electrically connected and the outer conductor of the coaxial cable and coupling block electricity with described with line
Connection.
In one embodiment according to the present invention, the coupling block is fixed on the band line lid and the band line substrate
Between, the inner conductor of the coaxial cable is electrically connected and the outer conductor of the coaxial cable and the coupling with described with line
Close block electrical connection.
In one embodiment according to the present invention, the coupling block be fixed on the center line with line substrate it
On.
In one embodiment according to the present invention, capacitive coupling ground connection transmitting device further include public plastic washer and
Corresponding mother's plastic washer, the male plastic washer and female plastic washer are configured for fixing on the band line
On the center line with line substrate.
In one embodiment according to the present invention, the capacitive coupling ground connection transmitting device further includes isolator, described
Isolator be configured for by the coupling block respectively with the band line lid and band line substrate is mutually isolated comes.
In one embodiment according to the present invention, the capacitive coupling ground connection transmitting device further includes coaxial electrical cable clip
Tool, the coaxial cable fixture are configured for for the coaxial cable being fixed to the band line substrate.
In one embodiment according to the present invention, the coupling block is fixed on the side with line substrate.
The second aspect of the present invention proposes a kind of phase shifter network equipment, which is characterized in that the phase shifter network packet
Include the capacitive coupling ground connection transmitting device proposed according to the first aspect of the invention.
Invention applies capacity coupled concepts.Thus, it is possible to avoid direct metal to metal from contacting, this will be advantageous
In the improvement of PIM performance.Additionally make no longer related to PIM performance with the pressure between line lid, coupling block and ground, so
The present invention need not also consider such as the torsion problem among traditional equipment.Traditional equipment the problems in be that low torque cannot ensure
Good contact, but high torque will cause deformation and spine.Furthermore capacitive couplings will not damage contact surface.So properly
Capacitive coupling face can balance the electric current between inner cable and outer braid.So its can be realized it is same with traditional equipment
The good voltage standing wave ratio performance of sample.
It is capable of providing following advantage using asymmetric dipole, i.e., one improves the FPY (First of antenna PIM performance
Passing Yield: first passage rate)；Two reduce the maintenance manpower cost of antenna PIM performance；And also improve component
Reliability and consistency (quality improvement).
Detailed description of the invention
The following detailed description to non-limiting embodiment, other spies of the invention are read by referring to accompanying drawing
Sign, objects and advantages will become more apparent upon.
Fig. 1 shows the schematic diagram of the ground connection transmission device of the connection of the direct metal to metal according to the prior art
100；
Fig. 2 shows the exploded views 200 of one embodiment of capacitive coupling ground connection transmitting device according to the present invention；
Fig. 3 shows the assembling figure 200 of one embodiment of the ground connection transmitting device of capacitive coupling according to the present invention；
Fig. 4 shows the exploded view 300 of another embodiment of the ground connection transmitting device of capacitive coupling according to the present invention；
Fig. 5 shows the assembling figure 300 of another embodiment of the ground connection transmitting device of capacitive coupling according to the present invention；
Fig. 6 shows the exploded view 400 of another embodiment of the ground connection transmitting device of capacitive coupling according to the present invention；
Fig. 7 shows the assembling figure 400 of another embodiment of the ground connection transmitting device of capacitive coupling according to the present invention；With
And
The experimental performance table of the capacitive coupling ground connection transmitting device of Fig. 8 according to the present invention.
Run through different diagrams in the figure, same or similar appended drawing reference indicates the same or similar device (module)
Or step.
Specific embodiment
In the following detailed description of the preferred embodiment, reference is constituted to the appended attached drawing of present invention a part.Institute
Attached attached drawing, which has been illustrated by way of example, can be realized specific embodiment.Exemplary embodiment is not intended to
Exhaustive all embodiments according to the present invention.It is appreciated that without departing from the scope of the present invention, can use other
Embodiment can also carry out the modification of structure or logic.Therefore, it is below specific descriptions and it is unrestricted, and this
The range of invention is defined by the claims appended hereto.
Fig. 1 shows the schematic diagram of the ground connection transmission device of the connection of the direct metal to metal according to the prior art
100.The antenna structure of the prior art had at large described in background technology part, and details are not described herein.
Capacitive coupling ground connection transmitting device 200,300,400 according to the present invention is introduced below.
In the present invention, condenser type ground connection transmission device can be used among phase shifter network, more preferable to obtain
PIM performance.Fig. 2 shows one embodiment 200 of capacitive coupling ground connection transmitting device according to the present invention.
It can be seen from the figure that capacitive coupling ground connection transmitting device 200 according to the present invention includes:
Band line lid 2；
Band line substrate 12；And
Coupling block 8, the coupling block 8 are disposed between the band line lid 2 and the band line substrate 12, wherein
Between the band line lid 2 and the coupling block 8 and the band line substrate 12 and the coupling block 8 using capacitive coupling into
Row coupling.
Compared to the connection type of traditional direct metal to metal, band line lid is with coupling block and with line substrate and coupling
Close and coupled between block using capacitive coupling, can ensure the i.e. passive intermodulation performance of better PIM, this point for
It is grounded most important for transmitting device.
In addition, the capacitive coupling is grounded transmitting device 200 in the band line lid 2 in one embodiment according to the present invention
It include at least one layer of film 6,9 between the coupling block 8 and/or between the band line substrate 12 and the coupling block 8, correspondingly at this
It is formed between band line lid 2 and the coupling block 8 and/or between the band line substrate 12 and the coupling block 8 and is electrically isolated.
It will be understood by those of skill in the art that film herein can be PET film, wherein PET film is only example
Property, and not restrictive, it will be understood by those of skill in the art that it is also feasible for can be realized capacity coupled other modes
, and the implementation of PET film is only a kind of preferred mode, is easily achieved and manufacturing cost is low, it is even more important
Be that can ensure good passive intermodulation performance.
In addition, in one embodiment according to the present invention, at least one layer of film 6 and band between line lid 2 and coupling block 8
At least one layer of film 9 between line substrate 12 and coupling block 8 is integrally formed, and then simplifies assembly and manufacture difficulty.
In one embodiment according to the present invention, capacitive coupling ground connection transmitting device 200,300,400 further includes modeling
Expect that screw 3, the plastic screw 3 are used to the band line lid 2 being fixed to the band line substrate 12.
Replace traditional metallic screw nut that can then better assure indirect metal to metal with plastic screw
Connection, and then ensure with line lid and coupling block and coupling block and with the capacitive coupling connection between line substrate.
In one embodiment according to the present invention, it further includes same which, which is grounded transmitting device 200,300,400,
Shaft cable 7 and with line 4, the inner conductor of the coaxial cable 7 be electrically connected with this with line 4 and the outer conductor of the coaxial cable 7 with should
Coupling block 8 is electrically connected.
In one embodiment according to the present invention, the coupling block 8 be fixed on the band line lid 2 and the band line substrate 12 it
Between, the inner conductor of the coaxial cable 7 is electrically connected with this with line 4 and the outer conductor of the coaxial cable 7 and the coupling block 8 are electric
Connection.
Wherein, the thickness of film 6 and 9 is usually 0.1mm or so, and the thickness of coupling block 8 is then about 0.5mm or so, band
Line lid 2 and material with line substrate 12 can be metal, such as aluminium or alloy, and the material with line 4 and coupling block 8 is usually
Copper or alloy, in the present embodiment 200, PET film can drip very well be physically isolated the band line lid 2 and coupling block 8 and
Coupling block 8 and with line substrate 12, but can be coupled by capacitive between them and be coupled to ground.
Fig. 3 shows the assembling figure 200 of one embodiment of the ground connection transmitting device of capacitive coupling according to the present invention.From figure
In as can be seen that direct metal to metal in traditional device is connected in the embodiment of the present invention 200 and is not present,
So as to ensure good PIM performance.In one embodiment according to the present invention, which is grounded transmitting device
200,300,400 further include isolator 10, the isolator be configured for by the coupling block 8 respectively with the band line lid 2 and should
Line substrate 12 is mutually isolated comes for band.In one embodiment according to the present invention, capacitive coupling ground connection transmitting device 200,
300,400 further include coaxial cable fixture 11, which is configured for the coaxial cable 7 being fixed to the band
Line substrate 12.It can be seen from the figure that the coupling block 8 is fixed on the band line base in the embodiment 300 according to the present invention
On the center line of plate 12.In one embodiment according to the present invention, which is grounded transmitting device 200,300,400
It further include male plastic washer 3 and corresponding female plastic washer 5, the male plastic washer 3 and mother's plastic washer 5 are configured
For this to be fixed on the center line with line substrate 12 with line 4.
Fig. 4 shows the exploded view 300 of another embodiment of the ground connection transmitting device of capacitive coupling according to the present invention.?
In one embodiment according to the present invention, which is fixed on the side with line substrate 12.Fig. 5 is shown according to this hair
The assembling figure 300 of another embodiment of bright capacitive coupling ground connection transmitting device.
Fig. 6 shows the exploded view 400 of another embodiment of the ground connection transmitting device of capacitive coupling according to the present invention.Figure
7 show the assembling figure 400 of another embodiment of capacitive coupling ground connection transmitting device according to the present invention.It can from figure
Out, in this embodiment, it coaxial cable 7 and is point-blank connected with line 4, and junction is in the side of coupling block 8
Portion.
In addition, the phase shifter network includes according to implementation above-mentioned the invention also provides a kind of phase shifter network equipment
Capacitive coupling described in example is grounded transmitting device 200,300,400.
The experimental performance table 500 of the capacitive coupling ground connection transmitting device of Fig. 5 according to the present invention.As shown, these performances
It is good enough.In five groups of experimental datas, maximum value, minimum value and average value are in -175dBc or so, according to ability
The experience of the professional in domain can be similar to ideal situation as long as its value is under -150dBc and be considered there is foot
Enough good PIM performance.Moreover, its variance is also smaller, that is to say, that the PIM performance foot of ground connection transmitting device according to the present invention
It is enough to stablize, and the present invention has done the limitation of core parameter PIM, and which shows that PIM is good enough and stablizes.The equipment can
It is made up of metal bending and die casting.
It is obvious to a person skilled in the art that invention is not limited to the details of the above exemplary embodiments, Er Qie
In the case where without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
How from the point of view of, the present embodiments are to be considered as illustrative and not restrictive.In addition, it will be evident that one word of " comprising " not
Exclude other elements and steps, and wording "one" be not excluded for plural number.The multiple element stated in device claim can also
To be implemented by one element.The first, the second equal words are used to indicate names, and are not indicated any particular order.
Claims (11)
1. a kind of capacitive coupling is grounded transmitting device (200,300,400) characterized by comprising
Band line lid (2)；
Band line substrate (12)；And
Coupling block (8), the coupling block (8) are disposed between the band line lid (2) and the band line substrate (12), wherein
Using electricity between the band line lid (2) and the coupling block (8) and the band line substrate (12) and the coupling block (8)
Hold coupled modes to be coupled, capacitive coupling ground connection transmitting device (200,300,400) further includes coaxial cable (7) and band
Line (4), the inner conductor of the coaxial cable (7) be electrically connected with the band line (4) and the outer conductor of the coaxial cable (7) with
Coupling block (8) electrical connection.
2. capacitive coupling according to claim 1 is grounded transmitting device (200,300,400), which is characterized in that the electricity
Hold coupling grounding transmitting device (200,300,400) between the band line lid (2) and the coupling block (8) and/or the band
It include at least one layer of film (6,9) between line substrate (12) and the coupling block (8), correspondingly in the band line lid (2) and institute
It states between coupling block (8) and/or is formed between the band line substrate (12) and the coupling block (8) and is electrically isolated.
3. capacitive coupling according to claim 2 is grounded transmitting device (200,300,400), which is characterized in that the band
At least one layer of film and at least one layer of film one between line substrate and the coupling block between line lid and the coupling block
It is body formed.
4. capacitive coupling according to claim 1 is grounded transmitting device (200,300,400), which is characterized in that the electricity
Holding coupling grounding transmitting device (200,300,400) further includes plastic screw (1), and the plastic screw (1) is used for the band
Line lid (2) is fixed to the band line substrate (12).
5. capacitive coupling according to claim 1 is grounded transmitting device (200,300,400), which is characterized in that the coupling
It closes block (8) to be fixed between the band line lid (2) and the band line substrate (12), will be led in the coaxial cable (7)
Body is electrically connected with the band line (4) and the outer conductor of the coaxial cable (7) is electrically connected with the coupling block (8).
6. capacitive coupling according to claim 5 is grounded transmitting device (200,300,400), which is characterized in that the coupling
Block (8) are closed to be fixed on the center line of the band line substrate (12).
7. capacitive coupling according to claim 1 is grounded transmitting device (200,300,400), which is characterized in that the electricity
Holding coupling grounding transmitting device (200,300,400) further includes male plastic washer (3) and corresponding female plastic washer
(5), the male plastic washer (3) and female plastic washer (5) are configured for the band line (4) being fixed on the band line
On the center line of substrate (12).
8. capacitive coupling according to claim 1 is grounded transmitting device (200,300,400), which is characterized in that the electricity
Holding coupling grounding transmitting device (200,300,400) further includes isolator (10), and the isolator is configured for the coupling
Close block (8) respectively with the band line lid (2) and the band line substrate (12) is mutually isolated comes.
9. capacitive coupling according to claim 1 is grounded transmitting device (200,300,400), which is characterized in that the electricity
Holding coupling grounding transmitting device (200,300,400) further includes coaxial cable fixture (11), and the coaxial cable fixture is configured
For the coaxial cable (7) to be fixed to the band line substrate (12).
10. capacitive coupling according to claim 1 is grounded transmitting device (200,300,400), which is characterized in that the coupling
Close the side that block (8) are fixed on the band line substrate (12).
11. a kind of phase shifter network equipment, which is characterized in that the phase shifter network includes appointing according to claim 1 in 10
Capacitive coupling described in one is grounded transmitting device (200,300,400).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410483108.0A CN105490017B (en) | 2014-09-19 | 2014-09-19 | Capacitive coupling is grounded transmitting device and phase shifter network equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410483108.0A CN105490017B (en) | 2014-09-19 | 2014-09-19 | Capacitive coupling is grounded transmitting device and phase shifter network equipment |
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| CN105490017A CN105490017A (en) | 2016-04-13 |
| CN105490017B true CN105490017B (en) | 2019-06-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410483108.0A Active CN105490017B (en) | 2014-09-19 | 2014-09-19 | Capacitive coupling is grounded transmitting device and phase shifter network equipment |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107634290A (en) * | 2017-08-28 | 2018-01-26 | 广州司南天线设计研究所有限公司 | A kind of new coupling phase shifter |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102208710A (en) * | 2010-03-31 | 2011-10-05 | 安德鲁公司 | Structure for coupling grounding conversion from radio frequency coaxial cable to air microstrip and corresponding antenna |
| CN102738550A (en) * | 2011-04-06 | 2012-10-17 | 安德鲁公司 | Capacitive coupling conversion structure from stripline to microstrip and antenna containing same |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7102587B2 (en) * | 2004-06-15 | 2006-09-05 | Premark Rwp Holdings, Inc. | Embedded antenna connection method and system |
| IT1391192B1 (en) * | 2008-08-05 | 2011-11-18 | Selex Communications Spa | MULTILAYER STRUCTURE DEVICE WITH A VERTICAL TRANSITION BETWEEN A MICRO STRIP AND A STRIPLINE |
| CN204348913U (en) * | 2014-09-19 | 2015-05-20 | 安弗施无线射频***（上海）有限公司 | Capacitive coupling ground connection transmitting device and phase shifter network equipment |
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2014
- 2014-09-19 CN CN201410483108.0A patent/CN105490017B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102208710A (en) * | 2010-03-31 | 2011-10-05 | 安德鲁公司 | Structure for coupling grounding conversion from radio frequency coaxial cable to air microstrip and corresponding antenna |
| CN102738550A (en) * | 2011-04-06 | 2012-10-17 | 安德鲁公司 | Capacitive coupling conversion structure from stripline to microstrip and antenna containing same |
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Effective date of registration: 20230412 Address after: No.388 ningqiao Road, pilot Free Trade Zone, Pudong New Area, Shanghai, 201206 Patentee after: NOKIA SHANGHAI BELL Co.,Ltd. Address before: No. 299 Rongle East Road, Songjiang Industrial Zone, Songjiang District, Shanghai, 201613 Patentee before: Alcatel Lucent |
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Effective date of registration: 20230816 Address after: Connecticut, USA Patentee after: Anfersch Technology Co. Address before: No.388 ningqiao Road, pilot Free Trade Zone, Pudong New Area, Shanghai, 201206 Patentee before: NOKIA SHANGHAI BELL Co.,Ltd. |