CN107004952A - Circuit board and the electronic installation with the circuit board - Google Patents
Circuit board and the electronic installation with the circuit board Download PDFInfo
- Publication number
- CN107004952A CN107004952A CN201580066661.7A CN201580066661A CN107004952A CN 107004952 A CN107004952 A CN 107004952A CN 201580066661 A CN201580066661 A CN 201580066661A CN 107004952 A CN107004952 A CN 107004952A
- Authority
- CN
- China
- Prior art keywords
- antenna
- circuit board
- electronic installation
- resonator
- resonant element
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000009434 installation Methods 0.000 title claims abstract description 31
- 230000005672 electromagnetic field Effects 0.000 claims abstract description 8
- 239000011469 building brick Substances 0.000 claims description 37
- 230000005404 monopole Effects 0.000 claims description 18
- 230000003447 ipsilateral effect Effects 0.000 claims description 5
- 238000010276 construction Methods 0.000 claims description 3
- 230000005855 radiation Effects 0.000 description 15
- 239000000758 substrate Substances 0.000 description 14
- 238000010586 diagram Methods 0.000 description 13
- 239000010410 layer Substances 0.000 description 8
- 230000008878 coupling Effects 0.000 description 5
- 238000010168 coupling process Methods 0.000 description 5
- 238000005859 coupling reaction Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 3
- 238000005457 optimization Methods 0.000 description 3
- 230000000712 assembly Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 230000001151 other effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/52—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure
Abstract
A kind of circuit board (1) and the electronic installation with the circuit board (1).The circuit board (1) includes：Antenna (2)；It is integrated in the conducting wire around the antenna (2)；And decoupling resonant element (4), wherein, the decoupling resonant element (4) is arranged between the antenna (2) and the conducting wire, and the antenna (2) is isolated with the conducting wire electromagnetic field.
Description
The present invention relates to a kind of circuit board and the electronic installation with the circuit board.
With the development of wireless communication technology and the extensive use in every profession and trade, the design of antenna also faces huge challenge.On the one hand, high-quality remote transmission demand, to the radiation efficiency of antenna, directional diagram and gain have higher requirement.On the other hand, the equipment being increasingly miniaturized, overall compact circuit pursues cheap cost, all limits the size dimension and radiation efficiency of antenna.The contradiction of these two aspects, has promoted antenna constantly towards miniaturization, multiband direction is developed.Interacting between at the same time highly integrated circuit and multiple antennas has become a problem of class is common, in highly integrated equipment, electronic component, and limitation of the various wires to aerial radiation efficiency has become can not look down upon.
Conventional art typically reduces the influence for coupling and reducing other effects to antenna performance using the distance between increase antenna and electronic building brick, other antennas, wire etc..Or increase isolation by the way of polarity diversity between multiple antennas.But, due to adding antenna and the distance between wire or other antennas, in the design of equipment, it is more likely that need to take substantial amounts of space, be unfavorable for circuit integrating.And in many compact designs, due to the limitation in space, antenna and the distance between other assemblies and wire often very close to.These influences are usually ignored in traditional design, so as to cause aerial radiation efficiency to decline.
In view of the foregoing, it is necessary to which a kind of circuit board for the radiation characteristic and efficiency that ensure that antenna is provided.
A kind of electronic installation with the circuit board of offer is provided.
A kind of circuit board, the circuit board includes：Antenna；It is integrated in the conducting wire around the antenna；And decoupling resonant element, wherein, the decoupling resonant element is arranged between the antenna and the conducting wire, and the antenna is isolated with the conducting wire electromagnetic field.
In certain embodiments, the decoupling resonant element includes one or more resonators, and one or more resonators produce specific resonant frequency.
In certain embodiments, the frequency produced by each resonator is equal to the working frequency of the antenna, and/or the physical length of each resonator is quarter-wave, 1/2nd wavelength or its integral multiple of the operating frequency of antenna.
In certain embodiments, the shape of the multiple resonator is entirely different or part is different, and the resonator that the shape is entirely different or part is different is arranged between the antenna and the conducting wire with predetermined arrangement mode.
In certain embodiments, the multiple resonator parallel arranged is in a row, near and parallel to the antenna element.
In certain embodiments, the conducting wire is the electronic building brick of the interference caused to antenna, and the electronic building brick is located at the antenna in the same side of the circuit board.
In one embodiment, the circuit board includes connecting wire, and the connecting wire is located at the antenna on the not ipsilateral of the circuit board, and the decoupling resonant element is respectively arranged on two relative side surfaces of the circuit board with the wire.
In certain embodiments, the circuit board is sandwich construction, the conducting wire includes the electronic building brick of the interference caused to antenna, and when the electronic building brick and the antenna are located at the different layer of the circuit board, layer where layer is located at the antenna where the decoupling resonant element with electronic building brick institute between layers.
In certain embodiments, the antenna is monopole antenna.
In certain embodiments, the circuit board also includes the feed structure being electrically connected with the antenna, and the feed structure is coplanar wave guide feedback structure.
A kind of electronic installation, the electronic installation has circuit board as described above.
In one embodiment, the electronic installation is remote control, mobile phone, computer, electronic reader or intelligent watch.
In another embodiment, the electronic installation is remote control for remotely pilotless aircraft, or unmanned vehicle.
Compared with prior art, decoupling resonant element is with the addition of on circuit board of the present invention between antenna and the conducting wire being integrated in around the antenna, produce resonance to reduce the coupling between antenna and the conducting wire using the decoupling resonant element, the electromagnetic field between antenna and the conducting wire is added using decoupling resonant element to isolate, so that antenna can keep higher radiation efficiency and keep original antenna pattern, it is ensured that the radiation characteristic and efficiency of antenna.
Fig. 1 is the exploded view of the circuit board of present pre-ferred embodiments.
Fig. 2 is the top view of the circuit board of present pre-ferred embodiments.
Fig. 3 is the upward view of the circuit board of present pre-ferred embodiments.
Fig. 4 illustrates the contrast schematic diagram of antenna simulation efficiency.
Fig. 5 illustrates the E faces direction schematic diagram of antenna shown in Fig. 1.
Fig. 6 illustrates the H faces direction schematic diagram of antenna shown in Fig. 1.
| Circuit board | 1 |
| Antenna | 2 |
| Feed structure | 3 |
| Decoupling resonant element | 4 |
| Electronic building brick | 5 |
| Substrate | 6 |
| Connecting wire | 7 |
Following embodiment will further illustrate the present invention with reference to above-mentioned accompanying drawing.
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is only a part of embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, all other embodiment that those of ordinary skill in the art are obtained under the premise of creative work is not made belongs to the scope of protection of the invention.
Below in conjunction with the accompanying drawings, some embodiments of the present invention are elaborated.In the case where not conflicting, the feature in following embodiments and embodiment can be mutually combined.
Referring to Fig. 1, being the exploded view of present pre-ferred embodiments circuit board 1, Fig. 2 and Fig. 3 is the top and bottom perspective views of present pre-ferred embodiments circuit board 1.The circuit board 1 includes, but not limited to antenna 2, feed structure 3, decoupling resonant element 4, electronic building brick 5, substrate 6 and connecting wire 7.The substrate 6 is the carrier of antenna 2, feed structure 3, decoupling resonant element 4, electronic building brick 5 and connecting wire 7, and the substrate 6 can be single layer substrate or multilager base plate.In this preferred embodiment, the circuit board 1 is as circuit board integrated printed by integrated above-mentioned device, for example, the circuit board 1 can be flexible printed circuit board.In other preferred embodiments, the circuit board can also be non-flexible printed circuit board, such as pcb board.
In this preferred embodiment, the antenna 2, feed structure 3, decoupling resonant element 4, electronic building brick 5 are arranged on a side surface of the substrate 6（The upper surface of the substrate 6 for example described in Fig. 1）, and the connecting wire 7 is arranged on another side surface of the circuit board（The lower surface of the substrate 6 for example described in Fig. 1）.By the way that connecting wire 7 is arranged at the antenna 2 on the not ipsilateral of the substrate 6, further help to reduce the interference of 7 pairs of the connecting wire antenna 2.
In other preferred embodiments, the arrangement of above-mentioned each device can also be according to the actual requirements and different.For example, the electronic building brick 5 can also be located on the not ipsilateral of the substrate 6 with the antenna 2.
In one embodiment, the antenna 2 can be the antenna assembly of all kinds and structure, for example, Wimax antennas, WiFi antennas, mimo antenna etc..In this preferred embodiment, the antenna 2 is illustrated by taking the monopole antenna of planographic as an example.Planographic monopole antenna refers to a kind of strip conductor microstrip lines for being printed on medium substrate surface (its usual length is about the quarter-wave of operating frequency of antenna).
The antenna 2 is fed using the feed structure 3.The feed structure 3 can be the feed element of various feeding classifications.Conventional feeding classification includes：Coaxial feeding, feed microstrip line and coplanar wave guide feedback etc..In this preferred embodiment, the feed structure 3 is illustrated by taking coplanar wave guide feedback structure as an example.It should be noted that the flat plane antenna powered using co-planar waveguide can be for example, gradual change slot antenna, multimode antenna, monopole antenna, circular polarized antenna etc..Referring to Fig. 1, the antenna 2 is in the feed structure 3 on the same surface of the substrate 6, and the antenna 2 is linked together with the feed structure 3 using microstrip line co-planar waveguide.The connected mode of the antenna 2 and the feed structure 3 is the general connected mode known to those skilled in the art, does not do excessive explanation herein.
In one embodiment, the decoupling resonant element 4 includes multiple resonators.The resonator is the electronic building brick for producing resonant frequency.In this preferred embodiment, each resonator is the effigurate resonator of tool being made up of copper sheet, the various any suitable shapes such as E fonts, I-shaped, circular or " returning " font.In other preferred embodiments, the decoupling resonant element 4 can be each quasi resonant oscillator being made up of the material such as other metal materials or nonmetallic materials, and the resonator can also be resonance circuit etc..The shape and quantity of the resonator can be configured according to the practical structures of the circuit board 1.Certainly, in other embodiments, according to the difference of the structure of the circuit board 1, the decoupling resonant element 4 can also include a resonator.It should be noted that each resonator can produce specific resonant frequency（Frequency for the coupling between the frequency and the reduction antenna 2 and the connecting wire 7 that is arranged at around the antenna 2 of the coupling between the electronic building brick 5 that reduces the antenna 2 and be arranged at around the antenna 2, i.e. the resonant frequency of reduction interference）, to ensure that the antenna 2 can be radiated with original performance and mode.The length of each resonator is also useful for the frequency of required reduction interference.In one embodiment, the physical length of each resonator（That is, the length after expansion）It can be the quarter-wave of operating frequency of antenna（λ/4）, 1/2nd wavelength or its integral multiple etc..The working frequency of antenna is equal to the resonant frequency of resonator.It should be noted that multiple decoupling resonant elements 4 of the present invention are independently of the device outside the antenna 2.
The electronic building brick 5 can be integrated in the other assemblies around the antenna 2, and the electronic building brick 5 can be interfered to the antenna 2 after powered up.In one embodiment, the electronic building brick 5 can be electronic chip.
The connecting wire 7 is used to connect the other structures on the electronic building brick 5 and the circuit board 1.The connecting wire 7 can also be interfered to the antenna 2 after powered up.Fig. 1 and Fig. 3 are referred to, four connecting wires 7 are illustrated.
In one embodiment, the decoupling resonant element 4 is arranged between the antenna 2 and the electronic building brick 5 or is arranged between the antenna 2 and the connecting wire 7 with predetermined arrangement mode, so that the antenna 2 to be isolated with the electromagnetic field of electronic building brick 5 near the antenna 2, or isolate the antenna 2 with the electromagnetic field of connecting wire 7 near the antenna 2, so as to reduce the coupling between the electronic building brick 5 or connecting wire 7 near the antenna 2 and the antenna 2.
In this preferred embodiment, illustrated by the decoupling resonant element 4 so that predetermined arrangement mode is arranged between the antenna 2 and the electronic building brick 5 as an example.In other preferred embodiments, the decoupling resonant element 4 can also predetermined arrangement mode be arranged between the antenna 2 and the connecting wire 7 exemplified by illustrate.
It should be appreciated that the electronic building brick 5 and the connecting wire 7 are the conducting wire interfered to the antenna 2.The situation that the decoupling resonant element 4 is arranged between the antenna 2 and the conducting wire with predetermined arrangement mode includes：（1）When the antenna 2 and the conducting wire are arranged at the same side of the circuit board 1, the location arrangements of the decoupling resonant element 4 are gone up between the antenna 2 and the conducting wire in the side of the circuit board 1；（2）When the circuit board 1 at least three-decker and when being respectively arranged between the antenna 2 and the conducting wire on the different layer of the circuit board 1, the layer where the decoupling resonant element 4 is located at the place layer of antenna 2 with conducting wire institute between layers.
Referring again to Fig. 1 and Fig. 2, for example, decoupling resonant element described in Fig. 14 includes three resonators, the shape for being generally shaped like two pulses plus a rising edge of each resonator.It should be appreciated that in practical application, the shape of resonator is not limited to this, as long as the resonant frequency of each resonator is equal to the physical length of the working frequency of antenna, and/or each resonator（That is, the length after expansion）For the quarter-wave of the working frequency of antenna 2（λ/4）, 1/2nd wavelength or its integral multiple, however it is not limited to the present embodiment.Three with same shape resonator parallel arranged shown in Fig. 1 and Fig. 2, it is close to the antenna 2 and parallel with the antenna 2, and the upside of the antenna 2 and the right side of the electronic building brick 5 are respectively positioned on, three resonators are also at and are right against the connecting wire 7 simultaneously（Another side surface in the substrate 6）Upper strata（For example correspond to the position of the connecting wire 7 in a side surface of the substrate 6）.
In other preferred embodiments, the shape of each resonator can also be differed（It is different including entirely different or part）, the plurality of resonator can periodically be arranged with fixed or unfixed order.For example, two or more resonators of different shapes are periodically arranged.
The distance between the decoupling resonant element 4 and the antenna 2 are default optimization distance value, for example, the influence of the electronic building brick 5 and/or connecting wire 7 for the radiation efficiency of antenna 2 can be reduced to greatest extent by being set to the default optimization position and distance.The optimization distance value can carry out corresponding setting according to the difference of the shape and material of the antenna 2 and/or the resonator.For example, at the maximum for the electromagnetic field intensity that the decoupling resonant element 4 is arranged between antenna 2 and electronic building brick 5.In addition, the decoupling resonant element 4 can also be arranged in correspondence with according to the actual requirements relative to the position of the antenna 2, for example, upside, left side, the right side of the antenna 2 can be arranged in etc..
Foregoing circuit plate 1 can apply to an electronic installation（Diagram is not shown）In.The electronic installation can be any suitable devices such as remote control, mobile phone, computer, electronic reader, intelligent watch.The circuit board 1 is placed in the housing of the electronic installation（Diagram is not shown）It is interior.In one embodiment, the electronic installation can be used for remotely pilotless aircraft（Diagram is not shown）Remote control（Diagram is not shown）.It should be appreciated that the electronic installation can also be movable equipment, for example, automobile, steamer, unmanned vehicle etc..
Referring to Fig. 4, being the radiation efficiency contrast schematic diagram of the antenna 2.The efficiency of monopole antenna of the design frequency in the range of 2.4GHz to 2.5GHz is shown in Fig. 4.The monopole antenna is fed by coplanar wave guide feedback structure, in the case of individualism, and radiation efficiency is higher and in H faces（By antenna greatest irradiation direction and parallel to the plane of magnetic vector）There is good omni-directional in direction.But it is due to have other electronic building bricks and wire to be in the antenna very small scope, therefore the efficiency and directional diagram of the monopole antenna can all be affected.
Wherein, radiation efficiency when curve A represents not having decoupling resonant element near the monopole antenna, radiation efficiency when curve B represents to add decoupling resonant element near the monopole antenna.It can be seen that from two curves in Fig. 4, when not adding decoupling resonant element 4 near monopole antenna, due to the influence of neighbouring plain conductor, the radiation efficiency of the monopole antenna is about 60%-70%, in addition, the problem of due to crossing line, the maximum gain of the monopole antenna is only 1.3dBi, and out-of-roundness is about 3dB.Compare, by the upper strata of connecting wire 7（It is also at lower section, the side of the electronic building brick 5 of the antenna 2）It with the addition of after the decoupling resonant element 4, the radiation efficiency of the monopole antenna has reached about 90% in identical frequency range, at the same time the maximum gain of the monopole antenna has also reached 2.7dBi, out-of-roundness is less than 1.7dB.
Fig. 5 and Fig. 6 are referred to, Fig. 5 illustrates the E faces of the monopole antenna（By antenna greatest irradiation direction and parallel to the plane of electric field intensity）Direction schematic diagram, and Fig. 6 illustrate the H faces direction schematic diagram of the monopole antenna.From figs. 5 and 6, it can be seen that by with the addition of decoupling resonant element 4, resulting in more symmetrical omnidirectional radiation directional diagram so that the antenna 2 can keep original antenna pattern.
It the foregoing is only embodiments of the invention; it is not intended to limit the scope of the invention; equivalent structure or equivalent flow conversion that every utilization description of the invention and accompanying drawing content are made; or other related technical fields are directly or indirectly used in, it is included within the scope of the present invention.
Claims (23)
- A kind of circuit board, it is characterised in that the circuit board includes：Antenna；It is integrated in the conducting wire around the antenna；And decoupling resonant element, wherein, the decoupling resonant element is arranged between the antenna and the conducting wire, and the antenna is isolated with the conducting wire electromagnetic field.
- Circuit board as claimed in claim 1, it is characterised in that the decoupling resonant element includes one or more resonators, one or more resonators produce specific resonant frequency.
- Circuit board as claimed in claim 2, it is characterized in that, the shape of the multiple resonator is identical, and the frequency produced by each resonator is equal to the working frequency of the antenna, and/or the physical length of each resonator is quarter-wave, 1/2nd wavelength or its integral multiple of the operating frequency of antenna.
- Circuit board as claimed in claim 2, it is characterised in that the multiple resonator parallel arranged.
- Circuit board as claimed in claim 2, it is characterized in that, the shape of the multiple resonator is entirely different or part is different, and the frequency produced by each resonator is equal to the working frequency of the antenna, and/or the physical length of each resonator is quarter-wave, 1/2nd wavelength or its integral multiple of the operating frequency of antenna.
- Circuit board as claimed in claim 1, it is characterised in that the conducting wire is the electronic building brick of the interference caused to antenna, the electronic building brick is located at the antenna in the same side of the circuit board.
- Circuit board as claimed in claim 6, it is characterized in that, the circuit board also includes connecting wire, and the connecting wire is located at the antenna on the not ipsilateral of the circuit board, and the decoupling resonant element is respectively arranged on two relative side surfaces of the circuit board with the wire.
- Circuit board as claimed in claim 1, it is characterized in that, the circuit board is sandwich construction, the conducting wire includes the electronic building brick of the interference caused to antenna, and when the electronic building brick and the antenna are located at the different layer of the circuit board, layer where layer is located at the antenna where the decoupling resonant element with electronic building brick institute between layers.
- Circuit board as claimed in claim 1, it is characterised in that the antenna is monopole antenna.
- Circuit board as claimed in claim 1, it is characterised in that the circuit board also includes the feed structure being electrically connected with the antenna, the feed structure is coplanar wave guide feedback structure.
- A kind of electronic installation, it is characterised in that the electronic installation includes a circuit board, the circuit board includes antenna；It is integrated in the conducting wire around the antenna；And decoupling resonant element, wherein, the decoupling resonant element is arranged between the antenna and the conducting wire, and the antenna is isolated with the conducting wire electromagnetic field.
- Electronic installation as claimed in claim 11, it is characterised in that the decoupling resonant element includes one or more resonators, one or more resonators produce specific resonant frequency.
- Electronic installation as claimed in claim 12, it is characterized in that, the shape of the multiple resonator is identical, and the frequency produced by each resonator is equal to the working frequency of the antenna, and/or the physical length of each resonator is quarter-wave, 1/2nd wavelength or its integral multiple of the operating frequency of antenna.
- Electronic installation as claimed in claim 13, it is characterised in that the multiple resonator parallel arranged.
- Electronic installation as claimed in claim 12, it is characterized in that, the shape of the multiple resonator is entirely different or part is different, and the frequency produced by each resonator is equal to the working frequency of the antenna, and/or the physical length of each resonator is quarter-wave, 1/2nd wavelength or its integral multiple of the operating frequency of antenna.
- Electronic installation as claimed in claim 11, it is characterised in that the conducting wire is the electronic building brick of the interference caused to antenna, the electronic building brick is located at the antenna in the same side of the circuit board.
- Electronic installation as claimed in claim 16, it is characterized in that, the circuit board includes connecting wire, the connecting wire is located at the antenna on the not ipsilateral of the circuit board, and the decoupling resonant element is respectively arranged on two relative side surfaces of the circuit board with the wire.
- Electronic installation as claimed in claim 11, it is characterized in that, the circuit board is sandwich construction, the conducting wire includes the electronic building brick of the interference caused to antenna, and when the electronic building brick and the antenna are located at the different layer of the circuit board, layer where layer is located at the antenna where the decoupling resonant element with electronic building brick institute between layers.
- Electronic installation as claimed in claim 11, it is characterised in that the antenna is monopole antenna.
- Electronic installation as claimed in claim 11, it is characterised in that the circuit board also includes the feed structure being electrically connected with the antenna, the feed structure is coplanar wave guide feedback structure.
- Electronic installation as claimed in claim 11, it is characterised in that the electronic installation is remote control, mobile phone, computer, electronic reader or intelligent watch.
- Electronic installation as claimed in claim 11, it is characterised in that the electronic installation is the remote control for remotely pilotless aircraft.
- Electronic installation as claimed in claim 11, it is characterised in that the electronic installation is unmanned vehicle.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2015/094883 WO2017084037A1 (en) | 2015-11-18 | 2015-11-18 | Circuit board and electronic apparatus having circuit board |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107004952A true CN107004952A (en) | 2017-08-01 |
| CN107004952B CN107004952B (en) | 2019-09-06 |
Family
ID=58717193
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201580066661.7A Expired - Fee Related CN107004952B (en) | 2015-11-18 | 2015-11-18 | Circuit board and electronic device with the circuit board |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN107004952B (en) |
| WO (1) | WO2017084037A1 (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1291360A (en) * | 1998-02-20 | 2001-04-11 | 夸尔柯姆股份有限公司 | Substrate antenna incorporating an element preventing the coupling of energy between antenna and conductors |
| CN101036262A (en) * | 2004-08-20 | 2007-09-12 | 诺基亚公司 | Improving antenna isolation using grounded microwave elements |
| US20130076586A1 (en) * | 2010-06-01 | 2013-03-28 | Marisense Oy | Arrangement for reducing interference in an electronic shelf label |
| CN104681985A (en) * | 2015-02-13 | 2015-06-03 | 昆山联滔电子有限公司 | Three-dimensional antenna |
| CN204696240U (en) * | 2015-06-12 | 2015-10-07 | 河北电信设计咨询有限公司 | Lte antenna isolation structure |
| CN205178014U (en) * | 2015-11-18 | 2016-04-20 | 深圳市大疆创新科技有限公司 | Circuit board and electronic device having circuit board |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8416138B2 (en) * | 2008-12-29 | 2013-04-09 | Calamp Corp. | Multiband antenna including antenna elements connected by a choking circuit |
| CN201893439U (en) * | 2009-12-16 | 2011-07-06 | 国基电子（上海）有限公司 | Multi-antenna system |
| CN103825093A (en) * | 2012-11-16 | 2014-05-28 | 启碁科技股份有限公司 | Decoupling circuit and antenna apparatus |
| CN103367893A (en) * | 2013-07-04 | 2013-10-23 | 云南大学 | High-isolation broadband two-antenna system |
-
2015
- 2015-11-18 CN CN201580066661.7A patent/CN107004952B/en not_active Expired - Fee Related
- 2015-11-18 WO PCT/CN2015/094883 patent/WO2017084037A1/en active Application Filing
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1291360A (en) * | 1998-02-20 | 2001-04-11 | 夸尔柯姆股份有限公司 | Substrate antenna incorporating an element preventing the coupling of energy between antenna and conductors |
| CN101036262A (en) * | 2004-08-20 | 2007-09-12 | 诺基亚公司 | Improving antenna isolation using grounded microwave elements |
| US20130076586A1 (en) * | 2010-06-01 | 2013-03-28 | Marisense Oy | Arrangement for reducing interference in an electronic shelf label |
| CN104681985A (en) * | 2015-02-13 | 2015-06-03 | 昆山联滔电子有限公司 | Three-dimensional antenna |
| CN204696240U (en) * | 2015-06-12 | 2015-10-07 | 河北电信设计咨询有限公司 | Lte antenna isolation structure |
| CN205178014U (en) * | 2015-11-18 | 2016-04-20 | 深圳市大疆创新科技有限公司 | Circuit board and electronic device having circuit board |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107004952B (en) | 2019-09-06 |
| WO2017084037A1 (en) | 2017-05-26 |
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Granted publication date: 20190906 |