CN207504154U - A kind of antenna system - Google Patents
A kind of antenna system Download PDFInfo
- Publication number
- CN207504154U CN207504154U CN201721477408.3U CN201721477408U CN207504154U CN 207504154 U CN207504154 U CN 207504154U CN 201721477408 U CN201721477408 U CN 201721477408U CN 207504154 U CN207504154 U CN 207504154U
- Authority
- CN
- China
- Prior art keywords
- antenna
- signal generator
- holder
- antenna system
- wireless charging
- 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.)
- Active
Links
Abstract
The utility model is related to wireless power transmission fields, disclose a kind of antenna system.In the utility model, antenna system, applied to wireless charging device, including：Antenna, antenna holder and signal generator；The antenna is placed on antenna holder, which is positioned over the center of antenna, which is electrically connected with signal generator, wherein, the area for the top surface which contacts with antenna is more than the surface area of antenna；The antenna is single turn annular horizontal poliarizing antenna；Signal generator is used to generate radiofrequency signal according to predetermined power and emit；The antenna is used to receive the radiofrequency signal of signal generator transmitting, and generates magnetic field induction according to radiofrequency signal.Antenna system provided by the utility model fast and accurately can carry out occlusion detection to wireless charging device.
Description
Technical field
The utility model is related to wireless power transmission field, more particularly to a kind of antenna system.
Background technology
With the development of science and technology, people are higher and higher for power quality requirements, it is desirable that it is with portable, safety, efficiently,
The features such as environmentally friendly, especially when outgoing, different electronic equipments needs to be equipped with different power cords, and electronic product is used to people
Cause inconvenience.And wireless power transmission technology causes electronic product in charging without using cable.So-called radio energy
Transmission technology (Wireless Power Transfer Technology, referred to as " WPT ") refers to comprehensively utilize modern electric electricity
The technologies such as sub- energy conversion technology, Circuit theory, microelectric technique and modern scientist realize electric energy from power supply (power grid or battery)
Electrical equipment or electrical equipment are passed to non-electrical contact mode by soft-medium (such as electric field, magnetic field, microwave, laser)
By soft-medium by energy feedback power.
People have gone out wireless charging device using wireless power transmission Technology design, charge for various electronic equipments.
Since wireless charging device by magnetic induction coil charges to electronic equipment, the magnetic field that wireless charging device generates is vulnerable to
The magnetic field of ambient enviroment influences and causes to block, thus, it is very necessary that the blocking performance of wireless charging device, which is detected,
's.Inventor has found that at least there are the following problems in the prior art：When carrying out occlusion detection to wireless charging device at present, provide
Obstruction interference magnetic field it is unstable, influence to wireless charging device carry out occlusion detection accuracy；And it is set to wireless charging
For when being detected, detecting system builds complexity, influences to carry out wireless charging device the speed of occlusion detection.
Utility model content
The purpose of this utility model is to provide a kind of antenna systems, enabling fast and accurately to wireless charging device
Carry out occlusion detection.
In order to solve the above technical problems, the embodiment of the utility model provides a kind of antenna system, applied to wireless
Charging equipment, including：Antenna, antenna holder and signal generator；The antenna is placed on antenna holder, which puts
The center of antenna is placed in, which is electrically connected with signal generator, wherein, the top which contacts with antenna
The area on surface is more than the surface area of antenna；The antenna is single turn annular horizontal poliarizing antenna；Signal generator is used for according to pre-
If power generates radiofrequency signal and emits；The antenna is used to receive the radiofrequency signal of signal generator transmitting, and is believed according to radio frequency
Number generation magnetic field induction.
The utility model embodiment in terms of existing technologies, can by antenna, antenna holder and signal generator
Go out to carry out wireless charging device the test environment of blocking performance test with fast construction, and since antenna is positioned over antenna holder
On, it is easy to remove when replacing environment, and when carrying out occlusion detection, antenna and signal generator are attached, wireless charging
Electric equipment is placed on the center of antenna, that is, completes building for detecting system, so as to which detecting system is rapidly completed
It builds, builds simple；Antenna holder supports antenna, other articles (such as ground) in ambient enviroment can also be avoided to generate antenna
Influence caused by magnetic field induction, and the area of top surface that antenna holder is contacted with antenna is more than the surface area of the antenna, makes
Obtain the support antenna that antenna holder can be stablized so that when carrying out occlusion detection to wireless charging device, avoid because of antenna
The mobile influence caused by test, it is ensured that the accurate detection to wireless charging device；Antenna is single turn annular horizontal poliarizing antenna,
It ensures that antenna generates stable obstruction interference magnetic field, convenient for the detection to wireless charging device, ensure that and wireless charging is set
Standby accurate detection.
In addition, antenna holder is column construction, the bottom surface of the antenna holder is provided with universal wheel, wherein, the antenna
The bottom surface of stent is close to the surface on ground.Antenna holder is column construction, is placed on the antenna holder convenient for antenna, together
When the antenna holder bottom surface be provided with universal wheel, the movement of convenient antenna, so as to facilitate the movement of entire antenna system,
Enhance the applicability of antenna system.
In addition, antenna system further includes：Radio frequency switching device；The radio frequency switching device is set on this antenna, the antenna
It is connected with signal generator by the radio frequency switching device.Using radio frequency switching device, it is connect convenient for antenna with signal generator.
In addition, antenna system further includes：Amplifier；Amplifier is arranged on antenna, is received for amplifying the antenna
The radiofrequency signal.Due to signal, in transmission, there are line losses, and by amplifier, the radiofrequency signal that will be transmitted to antenna is put
Greatly, convenient for antenna magnetic field is generated using the radiofrequency signal received.
In addition, system further includes：Frequency spectrograph；The frequency spectrograph is connect by current probe with antenna, wherein, frequency spectrograph is used for
The predetermined power of signal generator generation radiofrequency signal is calibrated.Frequency spectrograph is for calibration signal generator generation radio frequency letter
Number predetermined power, further ensure that wireless charging device carry out occlusion detection accuracy.
In addition, the shape of antenna is circle.Circular antenna provides magnetic field and stablizes the most.
In addition, the shape of antenna holder is square cylinder.It is further ensured that stable support antenna.
Description of the drawings
One or more embodiments are illustrated by the picture in corresponding attached drawing, these exemplary theorys
The bright restriction not formed to embodiment, the element for having same reference numbers label in attached drawing are expressed as similar element, remove
Non- have a special statement, and composition does not limit the figure in attached drawing.
Fig. 1 is according to the structure diagram of antenna system a kind of in the utility model first embodiment；
Fig. 2 is according to the structure diagram of antenna system a kind of in the utility model second embodiment.
Specific embodiment
It is new to this practicality below in conjunction with attached drawing to make the purpose of this utility model, technical solution and advantage clearer
Each embodiment of type is explained in detail.It is however, it will be understood by those skilled in the art that each in the utility model
In embodiment, in order to make the reader understand this application better, many technical details are proposed.But even if without these skills
Art details and various changes and modifications based on the following respective embodiments can also realize that each claim of the application is required and protect
The technical solution of shield.
The first embodiment of the utility model is related to a kind of antenna system.The antenna system, sets applied to wireless charging
Standby, wireless charging device can be wireless charger, for example, the wireless charger of smart mobile phone.The antenna system includes：Antenna
101st, antenna holder 102 and signal generator 103.Concrete structure is as shown in Figure 1.
The antenna 101 is placed on antenna holder 102, and wireless charging device is positioned over the center of antenna 101, the antenna
101 are electrically connected with signal generator 103, wherein, the area of top surface which contacts with antenna 101 is big
In the surface area of antenna 101；The antenna 101 is single turn annular horizontal poliarizing antenna；Signal generator 103 is used for according to default work(
Rate generates radiofrequency signal and emits；The antenna 101 is used to receive the radiofrequency signal of the transmitting of signal generator 103, and according to radio frequency
Signal generates magnetic field induction.
Preferably, which is column construction, and the bottom surface of the antenna holder 102 is provided with universal wheel
104, wherein, the bottom surface of the antenna holder 102 is the surface on close ground, as shown in Figure 1.
Specifically, antenna holder 102 can be cylindrical structure or square cylinder, and the utility model is not right
The shape of cylinder is limited.By antenna holder 102 to be illustrated for square cylinder in present embodiment.As shown in fig. 1,
The bottom of the antenna holder 102 is the surface on close ground, and is provided with universal wheel 104, and the number of wherein universal wheel 104 is not done
Limitation, but in order to ensure the stability when antenna holder moves, as shown in fig. 1,4 universal wheels 104 are set, i.e., in day
4 angles of 102 bottom of line bracket respectively set a universal wheel 104.In order to ensure the stability of the antenna holder 102 and resist dry
Immunity energy, the antenna holder 102 are made using nylon material.
Antenna 101 may be used radio frequency coaxial-cable and be made in the utility model, the magnetic generated to ensure antenna 101
The stability of field sensing is good, and to the strong antijamming capability of external electromagnetic field, radio frequency coaxial-cable selects a diameter of 5cm and with copper
The semi-rigid cable of housing protection.
Preferably, the shape of antenna 101 is circle.Specifically, in loop aerial, the magnetic field that circular antenna generates is felt
Intensity is answered to stablize the most, the diameter of antenna 101 can be made according to practical measurement demand, for example, the diameter of the antenna 101
It is 2 meters.
Preferably, antenna system further includes：Radio frequency switching device 105.The radio frequency switching device 105 is arranged on antenna 101
On, the antenna 101 and signal generator 103 are connected by radio frequency switching device 105.Specifically, radio frequency switching device 105 is adopted
With N-type radio frequency adapter, connection is on antenna 101.And the signal output interface connection radio frequency line of signal generator 103, this is penetrated
Another end of frequency line is connected with the radio frequency switching device 105 connecting on antenna 101.When the signal generator 103 is set up
Into the signal generator 103 later, is opened, the radiofrequency signal of generation is transmitted to by radio frequency switching device 105 on antenna 101,
Antenna 101 utilizes the radiofrequency signal generation magnetic field induction received.
Magnetic field induction is generated using the radiofrequency signal received for the ease of antenna, antenna system further includes：Amplifier 106；
Amplifier 106 is arranged on antenna, for amplifying the radiofrequency signal that the antenna receives.
Specifically, amplifier 106 are arranged between radio frequency switching device 105 and the annular position of antenna 101, that is, penetrate
After frequency signal transmission to radio frequency switching device 105, amplifier 106 is flowed through, after radiofrequency signal is amplified by amplifier 106,
Antenna 101 utilizes the stable magnetic field induction of amplified radiofrequency signal generation.
Certainly, it these are only and limited for example, not formed to the technical solution of the utility model, in practical application
In, those skilled in the art can be as needed, sets suitable requirement, is not limited herein.
It should be noted that after the building of this antenna system is completed, wireless charging device is placed on antenna 101
Center, signal generator 103 is generated according to predetermined power radiofrequency signal and to be emitted, this predetermined power be specifically according to
The requirement setting of the manufacturer of the wireless charging device.Antenna 101 detects the wireless charging after stable magnetic field induction is generated
Electric equipment is transmitted and whether reception signal is normal, wherein, an appropriate system impedance is provided for the antenna system, for example, being
Impedance of uniting can be 50 ohm.It is repeated no more in specific detection process present embodiment.
The utility model embodiment in terms of existing technologies, can by antenna, antenna holder and signal generator
Go out to carry out wireless charging device the test environment of blocking performance test with fast construction, and since antenna is positioned over antenna holder
On, it is easy to remove when replacing environment, and when carrying out occlusion detection, antenna and signal generator are attached, wireless charging
Electric equipment is placed on the center of antenna, that is, completes building for detecting system, so as to which detecting system is rapidly completed
It builds, builds simple；Antenna holder supports antenna, other articles (such as ground) in ambient enviroment can also be avoided to generate antenna
Influence caused by magnetic induction intensity, and the area of top surface that antenna holder is contacted with antenna is more than the surface area of the antenna,
Allow the support antenna that antenna holder is stablized so that when carrying out occlusion detection to wireless charging device, avoid because of day
Line movement is influenced caused by test, it is ensured that the accurate detection to wireless charging device；Antenna is single turn annular horizontal polarization day
Line, it is ensured that antenna generates stable obstruction interference magnetic field, convenient for the detection to wireless charging device, ensure that wireless charging
The accurate detection of equipment.
The second embodiment of the utility model is related to a kind of antenna system.Second embodiment is first embodiment
It is further improved, mainly thes improvement is that：In the utility model second embodiment, which further includes：Frequency spectrum
Instrument 107；The frequency spectrograph 107 is connect by current probe with antenna 101, wherein, frequency spectrograph 107 is used for signal generator 103
The predetermined power of generation radiofrequency signal is calibrated, and specific connection is as shown in Figure 2.
Specifically, one end of current probe is connected to the annular section of antenna 101, and the other end is connected on frequency spectrograph 107,
Specific connection relation is as shown in Figure 2.The signal that signal generator 103 emits is transmitted to antenna 101, frequency spectrum by amplifier 106
Instrument 107 detects the intensity of the magnetic field induction of the electric current generation on antenna 101 by current probe in real time, occurs by adjusting signal
The performance number of the generation signal of device 103, adjusts the intensity for the magnetic field induction that antenna 101 generates until reaching default magnetic field intensity,
The power of the signal generator generation signal of record at this time, and generate radiofrequency signal using the performance number as signal generator 103
Predetermined power, so far complete the calibration to the predetermined power value of signal generator 103.Wherein, default magnetic field intensity is specifically
What the requirement according to the manufacturer of the wireless charging device was set.
Antenna system provided by the utility model, by using the pre- of frequency spectrograph calibration signal generator generation radiofrequency signal
If power, the accuracy that occlusion detection is carried out to wireless charging device is further ensured that.
It will be understood by those skilled in the art that the respective embodiments described above are to realize the specific implementation of the utility model
Example, and in practical applications, can to it, various changes can be made in the form and details, without departing from the spirit of the utility model
And range.
Claims (8)
1. a kind of antenna system, which is characterized in that applied to wireless charging device, including：Antenna, antenna holder and signal occur
Device；
The antenna is placed on the antenna holder, and the wireless charging device is positioned over the center of the antenna, described
Antenna is electrically connected with the signal generator, wherein, the area of top surface that the antenna holder is contacted with the antenna
More than the surface area of the antenna；
The antenna is single turn annular horizontal poliarizing antenna；
The signal generator is used to generate radiofrequency signal according to predetermined power and emit；
The antenna is used to receive the radiofrequency signal of the signal generator transmitting, and generates magnetic field sense according to the radiofrequency signal
It should.
2. antenna system according to claim 1, which is characterized in that the antenna holder be column construction, the antenna
The bottom surface of stent is provided with universal wheel, wherein, the bottom surface of the antenna holder is close to the surface on ground.
3. antenna system according to any one of claim 1 to 2, which is characterized in that the antenna system further includes：It penetrates
Frequency switching device；
The radio frequency switching device is arranged on the antenna, and the antenna and the signal generator pass through the RF repeating
Device connects.
4. antenna system according to claim 3, which is characterized in that the radio frequency switching device is transferred using N-type radio frequency
Head.
5. antenna system according to claim 4, which is characterized in that the antenna system further includes：Amplifier；
The amplifier is arranged on the antenna, for amplifying the radiofrequency signal that the antenna receives.
6. antenna system according to claim 5, which is characterized in that the antenna system further includes：Frequency spectrograph；
The frequency spectrograph is connect by current probe with the antenna, wherein, the frequency spectrograph is used for the signal generator
The predetermined power for generating the radiofrequency signal is calibrated.
7. the antenna system according to any one of claim 4 to 6, which is characterized in that the shape of the antenna is circle.
8. antenna system according to claim 7, which is characterized in that the shape of the antenna holder is square cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721477408.3U CN207504154U (en) | 2017-11-08 | 2017-11-08 | A kind of antenna system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721477408.3U CN207504154U (en) | 2017-11-08 | 2017-11-08 | A kind of antenna system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207504154U true CN207504154U (en) | 2018-06-15 |
Family
ID=62503309
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721477408.3U Active CN207504154U (en) | 2017-11-08 | 2017-11-08 | A kind of antenna system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207504154U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113126011A (en) * | 2021-06-17 | 2021-07-16 | 中国科学院地质与地球物理研究所 | Radio frequency magnetic field coil calibrating device |
-
2017
- 2017-11-08 CN CN201721477408.3U patent/CN207504154U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113126011A (en) * | 2021-06-17 | 2021-07-16 | 中国科学院地质与地球物理研究所 | Radio frequency magnetic field coil calibrating device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9037201B2 (en) | Coupling an electronic apparatus having a radio link, in particular a mobile telephone, to devices of a motor vehicle | |
| US9966800B2 (en) | Wireless power receiving device | |
| EP3026821B1 (en) | An apparatus for intelligently reducing a specific absorbtion rate, a protective case and a terminal | |
| JP2019506825A (en) | Near field wireless power charging antenna | |
| CN204030732U (en) | A kind of wireless charging device based on NFC | |
| CN105223423B (en) | Electronic device and test system | |
| Yanakiev et al. | On small antenna measurements in a realistic MIMO scenario | |
| CN104330751A (en) | Lightning transient three-dimensional magnetic field sensor | |
| CN207504154U (en) | A kind of antenna system | |
| CN203811693U (en) | Three dimensional electromagnetic field sensor for electromagnetic pulse measurement | |
| KR20130025668A (en) | Charging equipment using pad type electrode contect point | |
| Hu et al. | Auto-tracking time reversal wireless power transfer system with a low-profile planar RF-channel cascaded transmitter | |
| Al-Khayari et al. | Design of an enhanced RF energy harvesting system for wireless sensors | |
| CN104539378B (en) | Antenna system with self-checking function | |
| Khansalee et al. | High frequency rectifier for RF energy harvesting systems | |
| KR20190014614A (en) | Sensing System and Method, Portable Terminal Using the Same | |
| CN211554155U (en) | Short wave antenna gain measurement system | |
| CN210037989U (en) | Active three-dimensional pulse electric field intensity measuring instrument based on dipole antenna | |
| CN204256146U (en) | A kind of lightning instantaneous three-dimensional magnetic field sensor | |
| CN115987333B (en) | Receiving circuit, transmitting circuit and communication system of broadband wireless micro-distance sensor | |
| US9721085B1 (en) | Method and battery pack device with antenna and diode | |
| Visser et al. | Focused Radiative Wireless Power Transfer Experiments | |
| Xuan et al. | Measurement of human body communication transmission characteristics at 20 MHz | |
| CN107026699A (en) | device for detecting interference electric signal | |
| CN207676369U (en) | A kind of high sensitivity DSRC detecting circuits, compound password card and board units |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |