CN206340676U - A kind of planar array reception antenna and the wireless charging or electric power system using it - Google Patents
A kind of planar array reception antenna and the wireless charging or electric power system using it Download PDFInfo
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- CN206340676U CN206340676U CN201621452546.1U CN201621452546U CN206340676U CN 206340676 U CN206340676 U CN 206340676U CN 201621452546 U CN201621452546 U CN 201621452546U CN 206340676 U CN206340676 U CN 206340676U
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- reception antenna
- antenna
- wireless charging
- planar array
- transmission circuit
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Abstract
The utility model discloses a kind of planar array reception antenna, a kind of described planar array reception antenna meets the characteristic resistance matching principle of radiation space effective transmission circuit, reception antenna effective transmission circuit and interface effective transmission circuit, including：Antenna element, the antenna element is printed on the side of circuit board with a matrix type, and the opposite side of the circuit board has uniform conductor surface, the conductor surface ground connection；The antenna element, the electromagnetic wave signal for receiving wireless charging or power supply；The conductor surface is used to reflect the electromagnetic wave that the antenna element is not received；And using its wireless charging or electric power system.To solve that the problem of efficiency of transmission, electromagnetic pollution can be influenceed by the reflection of flat plane antenna greatly.
Description
Technical field
The utility model is related to reception antenna and wireless charging or power supply field, and specifically a kind of planar array is received
Antenna and the wireless charging or electric power system using it.
Background technology
Flat plane antenna being applied conventional reception electromagnetic wave wireless charging or the antenna of the signal of power supply, it is to take a little more
Space is small, can simply paste and on the object for being electrically charged or powering.But, the absorbing surface of such a flat plane antenna is with higher
Reflectivity, substantial amounts of electromagnetic wave energy can be reflected to periphery, electromagnetic radiation is caused, because the original that portion of energy is reflected
Cause, its efficiency of transmission can also be reduced.
The content of the invention
In view of this, the utility model provides a kind of planar array reception antenna and the wireless charging using it or power supply system
System, to solve that efficiency of transmission, the problem of electromagnetic pollution is big can be influenceed by the reflection of flat plane antenna greatly.
In a first aspect, the utility model provides a kind of planar array reception antenna, a kind of described planar array receives day
Line meets the characteristic resistance of radiation space effective transmission circuit, reception antenna effective transmission circuit and interface effective transmission circuit
With principle, a kind of described planar array reception antenna includes：
Antenna element, the antenna element is printed on the side of circuit board with a matrix type, the circuit board it is another
Side has uniform conductor surface, the conductor surface ground connection；
The antenna element, the electromagnetic wave signal for receiving wireless charging or power supply；
The conductor surface is used to reflect the electromagnetic wave that the antenna element is not received；
Wherein, the radiation space effective transmission circuit, is the effective transmission circuit that reception antenna radiates space；
Wherein, the reception antenna effective transmission circuit, is the effective transmission circuit of the planar array reception antenna；
Wherein, the interface effective transmission circuit, is the interface effective transmission circuit of the planar array reception antenna.
Preferably, the antenna element is using the one or more in dipole antenna or circular resonator.
Preferably, the conductor surface is using the good metal material of electric conductivity.
Preferably, the good metal material of the electric conductivity is the one or more of copper, silver or gold.
Preferably, the matrix is 8 or 8 structures.
Second aspect, the utility model provides a kind of wireless charging or electric power system, including：
Transmitting device, the transmitting device includes signal amplification unit and transmitting antenna, the signal amplification unit and hair
Penetrate antenna connection；
Reception device, the reception device includes reception antenna, and the reception antenna receives day for above-mentioned planar array
Line；
Wherein, the transmitting antenna, the electromagnetic wave signal for launching wireless charging or power supply；
Wherein, the signal amplification unit, for control the wireless charging or power supply electromagnetic wave signal intensity and
Phase；
Wherein, the planar array reception antenna, the electricity for receiving the transmitting antenna transmitting wireless charging or power supply
Magnetostatic wave signal.
Preferably, a kind of wireless charging or electric power system also include
Target object, the target object is the equipment for its charging or power supply.
Preferably, the reception device also includes：
Rectification unit, the rectification unit is connected with the reception antenna and target object respectively；
The rectification unit, for the wireless charging or the electromagnetic wave of power supply for receiving the planar array reception antenna
Signal is converted to direct current signal.
Preferably, the target object includes：
Battery module, the battery module is connected with described rectification unit, the storage for electric energy.
The utility model has the advantages that：
The reflex components of reception antenna can be reduced to 0% by the utility model, add the efficiency of transmission of energy, reduction
The product electromagnetic pollution that operationally periphery is produced, improves the reliability and security of product.
Brief description of the drawings
By the description below with reference to accompanying drawing to the utility model embodiment, of the present utility model above-mentioned and other mesh
, feature and advantage it is apparent, in the accompanying drawings：
Fig. 1 is electromagnetic wave wireless charging or electric supply installation system block diagram；
Fig. 2 is the high frequency equivalent circuit figure of transmission space, reception antenna and interface；
Fig. 3 is areflexia 88 bipolar planar array reception antenna schematic diagrames；
Fig. 4 is areflexia 8 circular resonator planar array reception antenna schematic diagrames.
Embodiment
The utility model is described below based on embodiment, but what deserves to be explained is, the utility model is not limited
In these embodiments.It is detailed to describe some specific detail sections below in detailed description of the present utility model.So
And, for the part of not detailed description, those skilled in the art can also understand the utility model completely.
In addition, it should be understood by one skilled in the art that the accompanying drawing provided is simply to illustrate that of the present utility model
Objects, features and advantages, accompanying drawing is not to be actually drawn to scale.
Meanwhile, unless the context clearly requires otherwise, " comprising ", "comprising" otherwise in entire disclosure and claims etc.
Similar word should be construed to the implication included rather than exclusive or exhaustive implication；That is, being " including but not limited to "
Implication.
Fig. 1 is electromagnetic wave wireless charging or electric supply installation system block diagram.As shown in figure 1, electromagnetic wave wireless charging or power supply
Apparatus system system includes transmitting device 1 and reception device 2.
In Fig. 1, transmitting device 1 is the device for launching electromagnetic wave wireless charging or power supply signal, and transmitting device 1 is wrapped
Amplification unit 11 and transmitting antenna 12 are included, amplification unit 11 is connected with transmitting antenna 12.Amplification unit 11 is used to control transmitting day
The intensity for the electromagnetic wave signal that line is launched and its phase, transmitting antenna 12 are used to launch wireless charging or the electromagnetic wave letter of power supply
Number.
In Fig. 1, reception device 2 includes reception antenna 21 and rectification unit 22, and reception antenna 21 connects with rectification unit 22
Connect, reception antenna 21 is used for the wireless charging or powering electromagnetic ripple signal for receiving the transmitting of transmitting antenna 12, rectification unit 22 will connect
The wireless charging or powering electromagnetic ripple signal for receiving the reception of antenna 21 are converted into direct current signal, rectification unit 22 and target object 3
Battery module 31 is connected, and is that target object 3 is powered.
Wherein, reception antenna 21 uses unreflected planar array antenna.Reception antenna 21 utilizes multistage matching way, uses
The electromagnetic wave signal for launching transmitting antenna 12 wireless charging or power supply at receiving plane to reduce flat plane antenna reflects, and increases nothing
The electromagnetic wave signal absorption efficiency that line charges or powered, and security is improved, it is specifically shown in Fig. 2, Fig. 3 and Fig. 4 description.
Wherein, the high frequency is more than 500MHz.
Fig. 2 is the high frequency equivalent circuit figure of transmission space, reception antenna and interface, wherein, the high frequency be 500MHz with
On.Wireless charging or the electromagnetic wave signal of power supply conduct the high frequency of the conducting space passed through before the reception antenna 21 into Fig. 1
Equivalent circuit figure.Because conducting space is the conductive process for the electromagnetic wave signal that take part in wireless charging or power supply, pass
Guide space can be considered as radiating space effective transmission circuit 4.
As shown in Fig. 2 radiation space effective transmission circuit 4 is by radiating the node A in space and reception antenna with receiving day
Line effective transmission circuit 5 is connected, reception antenna effective transmission circuit 5 by the node B of reception antenna and reception antenna interface with
Interface effective transmission circuit 6 is connected.
Wherein, the node B of the node A of reception antenna and reception antenna interface is used to distinguish space effective transmission circuit 4
Characteristic resistance, reception antenna effective transmission circuit 5 and interface effective transmission circuit 6.
In fig. 2, radiation space effective transmission circuit 4 is the effective transmission circuit that reception antenna radiates space；Wireless charging
Electricity or the electromagnetic wave signal of power supply are received from conducting space by reception antenna, and are conducted to the interface of antenna, therefore receive day
Line can also be considered as reception antenna effective transmission circuit 5；The interface of reception antenna it is multiplex be that SMA interfaces its essence is exactly to pass
Rectification unit 22 in reception antenna 21 in wire road, SMA interfaces one end connection figure 1, SMA interface other ends connection figure 1, because
The interface equivalent circuit figure of this antenna can be considered as interface effective transmission circuit 6.
In fig. 2, radiation space effective transmission circuit 4, reception antenna effective transmission circuit 5 and interface effective transmission circuit
6 are used for the matching of characteristic resistance, and the principle of matching is the characteristic resistance of space effective transmission circuit 4, reception antenna equivalent transmission line
The characteristic resistance on road 5 and the characteristic resistance of interface effective transmission circuit 6 are equal.
That is, radiation space effective transmission circuit 4, reception antenna effective transmission circuit 5 and interface equivalent transmission line
The matching condition on road 6 is：When the input characteristics resistance of the radiation space effective transmission circuit 4 of A ports is equal to connecing for A ports
Receive the input characteristics resistance of antenna effective transmission circuit 5, radiation space effective transmission circuit 4, reception antenna effective transmission circuit 5
There is no back wave then；In addition, when the output characteristics resistance of the reception antenna effective transmission circuit 5 of B ports is equal to B ports
During the input characteristics resistance of the interface effective transmission circuit 6 at place, reception antenna effective transmission circuit 5 and interface effective transmission circuit
6 areflexia ripples occur.
Wherein, interface is passed through frequently with SMA interfaces in high-frequency circuit, and its common terminal characteristic resistance is 50 ohm, 75
Ohm and 100 ohm etc., characteristic resistance mentioned herein is ordinary circumstance, however not excluded that have other possibilities.So this portion
The matching divided is very easy, herein without being described in detail.
Fig. 3 is areflexia 88 bipolar planar array reception antenna schematic diagrames, that is, the equivalent biography of reception antenna in Fig. 2
Defeated circuit 5.If the characteristic resistance for radiating the conducting space of space effective transmission circuit 4 is 99.5 j0.3, j is imaginary unit,
That is the real part of characteristic resistance is 99.5, its imaginary part is 0.3.Therefore the radioactive nature resistance of reception antenna will be designed
It is 99.5 j0.3 with characteristic resistanceEqual, the reflex components of this planar array reception antenna will as little as 0%.
In figure 3, it can adjust each by the distance adjusted between antenna element 12-1 size and antenna element 12-1
Antenna element 12-1 radioactive nature resistance, accomplishes that each antenna element 12-1 radioactive nature resistance and radiation space are equivalent
The characteristic resistance of transmission line 4 matches, and just can be designed that areflexia planar array antenna.
Further, in figure 3, it is 0.45 by antenna element 12-1 length adjustment, by between x-axis antenna element 12-1
Distance is adjusted to 0.6, the distance of antenna y-axis is adjusted to 0.725, the radioactive nature resistance that just can adjust this antenna is
99.5−j0.3, by 64 antenna element 12-1 according to 8 mode is combined into the areflexia shown in Fig. 3 8 bipolar planes
Array received antenna.Wherein,Refer to the wavelength under current frequency, and wavelengthIt is according to the dielectric constant for making circuit board
Changed, it then follows wavelength cripetura rate principle.When antenna width is less than 0.2 λ, just on this dipole antenna without influence.Areflexia 8
Bipolar planar array reception antenna is printed circuit board antenna, and its receiving plane is antenna element 12-1, in the receiving plane of circuit board
Behind then have one layer of uniform conductor surface, conductor surface ground connection, through the part electricity of antenna element 12-1 effective vent area
Magnetic wave can be radiated on metal covering, and conductor surface is used as reflecting plate, and conductor surface produces total reflection, returns to antenna element
12-1, conductor surface is using good materials of electric conductivity such as copper, silver or gold.
Fig. 4 is areflexia 8 circular resonator planar array reception antenna schematic diagrames.The face printed form antenna of circuit board one,
The another side of circuit board has earth conductor face, and conductor surface is using good materials of electric conductivity such as copper, silver or gold.Adjustment can be passed through
Circular antenna element 12-2 diameters, and the distance in x-axis between antenna element 12-2, and in y-axis antenna element 12-2 away from
From to adjust the radioactive nature resistance of this array antenna, making it be matched with the characteristic resistance of conducting space, 72 circular days
Line unit 12-2 according to 8 matrix forms are arranged, and form areflexia 8 circular resonator planar array reception antennas, specifically
Characteristic impedance matching can refer to description in Fig. 3.
Embodiment described above is only expression embodiment of the present utility model, and it describes more specific and detailed, but simultaneously
Therefore the limitation to the utility model the scope of the claims can not be interpreted as.It should be pointed out that to the ordinary skill people of this area
For member, without departing from the concept of the premise utility, some deformations, equal replacement can also be made, improved etc., these
Belong to protection domain of the present utility model.Therefore, the protection domain of the utility model patent should be determined by the appended claims.
Claims (9)
1. a kind of planar array reception antenna, it is characterised in that a kind of described planar array reception antenna meets radiation space
The characteristic resistance matching principle of effective transmission circuit, reception antenna effective transmission circuit and interface effective transmission circuit, including：
Antenna element, the antenna element is printed on the side of circuit board with a matrix type, the opposite side of the circuit board
With uniform conductor surface, the conductor surface ground connection；
The antenna element, the electromagnetic wave signal for receiving wireless charging or power supply；
The conductor surface is used to reflect the electromagnetic wave that the antenna element is not received；
Wherein, the radiation space effective transmission circuit, is the effective transmission circuit that reception antenna radiates space；
Wherein, the reception antenna effective transmission circuit, is the effective transmission circuit of the planar array reception antenna；
Wherein, the interface effective transmission circuit, is the interface effective transmission circuit of the planar array reception antenna.
2. a kind of planar array reception antenna according to claim 1, it is characterised in that the antenna element is using bipolar
One or more in antenna or circular resonator.
3. a kind of planar array reception antenna according to claim 1, it is characterised in that the conductor surface uses electric conductivity
Good metal material.
4. a kind of planar array reception antenna according to claim 3, it is characterised in that the good metal of the electric conductivity
Material is the one or more of copper, silver or gold.
5. a kind of planar array reception antenna according to claim 4, it is characterised in that the matrix is 88 or 98
Structure.
6. a kind of wireless charging or electric power system, it is characterised in that including：
Transmitting device, the transmitting device includes signal amplification unit and transmitting antenna, the signal amplification unit and transmitting day
Line is connected；
Reception device, the reception device includes reception antenna, and the reception antenna is any one of Claims 1 to 5
Planar array reception antenna；
Wherein, the transmitting antenna, the electromagnetic wave signal for launching wireless charging or power supply；
Wherein, the signal amplification unit, for the intensity and phase of the electromagnetic wave signal for controlling the wireless charging or power supply；
Wherein, the planar array reception antenna, the electromagnetic wave for receiving the transmitting antenna transmitting wireless charging or power supply
Signal.
7. a kind of wireless charging according to claim 6 or electric power system, it is characterised in that a kind of wireless charging or
Electric power system also includes
Target object, the target object is the equipment for its charging or power supply.
8. a kind of wireless charging according to claim 7 or electric power system, it is characterised in that the reception device is also wrapped
Include：
Rectification unit, the rectification unit is connected with the reception antenna and target object respectively；
The rectification unit, for the wireless charging or the electromagnetic wave signal of power supply for receiving the planar array reception antenna
Be converted to direct current signal.
9. a kind of wireless charging according to claim 8 or electric power system, it is characterised in that the target object includes：
Battery module, the battery module is connected with described rectification unit, the storage for electric energy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621452546.1U CN206340676U (en) | 2016-12-28 | 2016-12-28 | A kind of planar array reception antenna and the wireless charging or electric power system using it |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621452546.1U CN206340676U (en) | 2016-12-28 | 2016-12-28 | A kind of planar array reception antenna and the wireless charging or electric power system using it |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206340676U true CN206340676U (en) | 2017-07-18 |
Family
ID=59302689
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621452546.1U Active CN206340676U (en) | 2016-12-28 | 2016-12-28 | A kind of planar array reception antenna and the wireless charging or electric power system using it |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206340676U (en) |
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2016
- 2016-12-28 CN CN201621452546.1U patent/CN206340676U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190522 Address after: 161005 Room 704, Unit 4, Building 52, Hongxing District, Longsha District, Qiqihar City, Heilongjiang Province Patentee after: Wang Ce Address before: 161005 No. 01, Unit 00, 01 Floor, West Side of Nanxu Street, Longsha District, Qiqihar City, Heilongjiang Province Patentee before: Qigihar Micro Electronic Technology Co., Ltd. |
|
| TR01 | Transfer of patent right |