CN104767028A - Rectification antenna - Google Patents
Rectification antenna Download PDFInfo
- Publication number
- CN104767028A CN104767028A CN201510115884.XA CN201510115884A CN104767028A CN 104767028 A CN104767028 A CN 104767028A CN 201510115884 A CN201510115884 A CN 201510115884A CN 104767028 A CN104767028 A CN 104767028A
- Authority
- CN
- China
- Prior art keywords
- circuit
- rectification
- rectification circuit
- filter
- module
- 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.)
- Pending
Links
- 238000001914 filtration Methods 0.000 claims abstract description 21
- 239000000758 substrate Substances 0.000 claims abstract description 5
- 238000009434 installation Methods 0.000 claims description 4
- 238000005516 engineering process Methods 0.000 abstract description 11
- 238000010923 batch production Methods 0.000 abstract 1
- 230000005540 biological transmission Effects 0.000 description 9
- 238000010586 diagram Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 230000001629 suppression Effects 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000005672 electromagnetic field Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- -1 polytetrafluoroethylene Polymers 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
- 239000004810 polytetrafluoroethylene Substances 0.000 description 1
Landscapes
- Rectifiers (AREA)
Abstract
The invention provides a rectification antenna. The rectification antenna comprises a receiving antenna module and a rectification circuit module which are manufactured on a printed circuit substrate. The receiving antenna module is provided with an output interface point connected with an input interface point arranged in the rectification circuit module. The rectification circuit module comprises the input interface point, a matching circuit, a rectification circuit, a direct current filtering circuit and a load, all of which are sequentially connected. According to the rectification antenna, batch production can be achieved through the printed circuit technology, cost is low, and achievement is easy. A voltage-multiplying mode is adopted in the rectification circuit in the rectification antenna, and higher output voltage can be obtained. Impedance matching of a receiving antenna and the rectification circuit and the impedance matching of the rectification circuit and an external power utilization device are guaranteed through the matching circuit.
Description
Technical field
The present invention relates to wireless energy transfer field, relate more specifically to a kind of RECTIFYING ANTENNA.
Background technology
Microwave power transmission (MPT:Microwave Power Transmission) technology has broken the traditional mode of energy by cable transmission, is that carrier is carried out wireless transmission, provides a kind of new transmission means with microwave.In 19 end of the centurys, American scientist Ni Gula tesla (Nikola Tesla) first proposes the concept of MPT.And modern age, MPT technology started from the sixties in last century, first be used to high power occasion, comprise the commercial power etc. of microwave-driven unmanned plane, the permanent job platform in high-altitude (namely present near space aerostatics) power supply, the transmission of electricity of complicated ground environment, solar power satellite transmission of electricity, middle low power.Particularly the iterative method of beautiful, Deng state solar power satellite plan and various countries are to the great attention of space technology and information technology, and MPT technology achieves significant progress at immediate and mid-term.But because MPT entire system turns dress, to change efficiency not high, adds that High-Power Microwave electromagnetic field has a great impact biological environment and bio-safety, so MPT technology is also in development.In recent years, the low power applications of MPT technology is paid close attention to, and considers to use it on the wireless power transfer of the node of wireless sensor network (WSN:Wireless Sensor Network), REID (RFID) label.
Receiving rectification antenna is the key technology of microwave power transmission system, and its cardinal principle is the microwave energy received by reception antenna in space, then carries out rectification process through microwave rectifier circuit, finally by the output DC loaded work piece after conversion.In microwave power transmission system, improve a lot to rectification efficiency although the input power of transmitting terminal is high, the power density required for reception antenna also can be corresponding comparatively large, too high to the requirement of energy emission system.
Summary of the invention
The object of the present invention is to provide a kind of RECTIFYING ANTENNA, this antenna can work under the environment of low power density, easily manufactured.
For solving the problems of the technologies described above, technical scheme of the present invention is as follows:
A kind of RECTIFYING ANTENNA, comprise reception antenna module and rectification circuit module, it is characterized in that, described reception antenna module and rectification circuit module making are in printed substrate, and described reception antenna module installation output interface point is connected with the input interface point of rectification circuit module installation; Described rectification circuit module comprises input interface point, match circuit, rectification circuit, DC filtering circuit, load; Described input interface point, match circuit, rectification circuit, DC filtering circuit, load connect in turn.
In the present invention, reception antenna module receives low power microwave energy, the input interface point of rectification circuit module is reached by output interface point, enter rectifier circuit rectifies through match circuit, obtain enough output voltages by DC filtering circuit filtering harmonic wave again after rectification completes and DC load is powered.
Further, described rectification circuit is multiplication of voltage full-wave rectifying circuit, comprises the one or two and second diode, a stauros, via hole earth point; The nine o'clock direction of described stauros is connected with match circuit, the six o'clock direction of stauros is connected with the negative electrode of the first diode, the anode of the first diode is connected with via hole earth point, the three direction of stauros is connected with the anode of the second diode, and the negative electrode of the second diode is connected with DC filtering circuit.
Rectification circuit is the core of whole antenna, the structure of this rectification circuit belongs to multiplication of voltage form, milder input impedance and higher output voltage is had under the prerequisite not increasing circuit volume, the lower powered RECTIFYING ANTENNA be more suitable for, therefore employing multiplication of voltage form can be obtained higher output voltage by rectification circuit of the present invention.
Preferably, described DC filtering circuit comprises little fan-filter, large fan-filter and line style minor matters filter; Described little fan-filter, large fan-filter are connected in turn with line style minor matters filter.
The electric fundamental frequency to output waveform of DC filtering, second harmonic and the triple-frequency harmonics composition that consist of large and small fan-filter and line style minor matters filter in the present invention carry out filtering, and harmonic components more than quadravalence is relatively very little, does not consider suppression here.Large fan-filter is in order to filtering fundamental component, and line style minor matters filter is in order to filtering second harmonic, and little fan-filter is then in order to filtering triple-frequency harmonics.
Further, this RECTIFYING ANTENNA is based on 2.45GHz WIFI frequency range.RECTIFYING ANTENNA of the present invention is based on 2.45GHz WIFI frequency range, applied widely, is easy to promote.
Preferably, what described match circuit adopted is single detail impedance matching.What in the present invention, match circuit adopted is single detail impedance matching, ensure that the impedance matching of reception antenna and rectification circuit, and the impedance matching between rectification circuit and external power consumption equipment.
The input impedance of described reception antenna module is 50 ohm, the described 1 and second diode be Schottky diode.In the present invention, reception antenna module adopts the mode of side feed, has good directivity.
Compared with prior art, the beneficial effect of technical solution of the present invention is:
1, RECTIFYING ANTENNA of the present invention can adopt printed circuit technique to produce in batches, and cost is low, is easy to realize;
2, the rectification circuit in RECTIFYING ANTENNA of the present invention adopts multiplication of voltage form, can obtain higher output voltage;
3, reception antenna module of the present invention adopts the mode of side feed, has good directivity, and operating distance is far away, and antijamming capability is strong;
4, RECTIFYING ANTENNA of the present invention goes for the receiving equipment of the low power density application such as wireless senser.
Accompanying drawing explanation
Fig. 1 is reception antenna structure front schematic view;
Fig. 2 is reception antenna structure reverse side schematic diagram;
Fig. 3 is rectification circuit connection diagram;
Fig. 4 is RECTIFYING ANTENNA overall structure schematic diagram;
Wherein, 1 expression reception antenna module arranges output interface point, and 2 represent rectification circuit module input interface points, 3 represent match circuit, 4 represent rectifier diode, and 5 represent via hole earth point, and 6 represent large fan-filter, 7 represent little fan-filter, 8 represent line style minor matters filter, and 9 represent load, and 10 represent reception antenna module, 11 represent rectification circuit module, and 12 represent stauros.
Embodiment
Accompanying drawing, only for exemplary illustration, can not be interpreted as the restriction to this patent;
In order to better the present embodiment is described, some parts of accompanying drawing have omission, zoom in or out, and do not represent the size of actual product;
To those skilled in the art, in accompanying drawing, some known features and explanation thereof may be omitted is understandable.
Below in conjunction with drawings and Examples, technical scheme of the present invention is described further.
Embodiment 1
The present invention consists of the following components as shown in Figure 3-4: reception antenna module 10, reception antenna module are arranged output interface point 1, rectification circuit module 11 comprises input interface point 2, match circuit 3, stauros 12, rectifier diode 4, via hole earth point 5, large fan-filter 6, little fan-filter 7, line style minor matters filter 8, load 9; Stauros 12, rectifier diode 4, via hole earth point 5 form rectification circuit; Large fan-filter 6, little fan-filter 7, line style minor matters filter 8 form DC filtering circuit.All adopt printed circuit with upper part, integral manufacturing is on polytetrafluoroethylene double-sided copper-clad board substrate, and substrate is thick is 0.8mm, and dielectric constant is 2.55, and loss tangent is less than 0.001, and conduction band copper is thick is 0.035mm.
Fig. 1 and Fig. 2 represents the obverse and reverse of reception antenna module 10 of the present invention respectively, and hypographous part is exactly the structure of antenna.The output interface 1 of reception antenna module represents that reception antenna exports the interface of energy to rectification circuit, the directivity of this reception antenna better, employing be the mode of side feed, its input impedance is 50 ohm, and the operating frequency of receiving rectification antenna is 2.45GHz.
Rectification circuit module input interface point 2 in Fig. 3 refers to that the energy that reception antenna receives enters into rectification circuit from here.
What match circuit 3 adopted is single detail matching way, makes rectification circuit be 50 ohm from the impedance that rectification circuit input interface point 2 looks over, thus matches with reception antenna.
What adopt in the present embodiment is voltage doubling rectifing circuit, and two rectifier diodes 4 are Schottky diodes, its mode according to Fig. 3 is arranged.The advantage of this rectifier system to obtain higher output voltage, but higher to the requirement of diode, and the diode model adopted in the present invention is the Schottky diode that the SMS7630 of SKYWORKS company is encapsulated as SC-79.Via hole earth point 5 shows that need there be a via hole ground connection at this place.
Large fan-filter 6, little fan-filter 7 and line style minor matters filter 8 constitute a DC filter, filtering is carried out to the fundamental frequency of output waveform, second harmonic and triple-frequency harmonics composition, harmonic components more than quadravalence is relatively very little, does not consider suppression here.Large fan-filter 6 is in order to filtering fundamental component, and quatrter-wavelength line type minor matters filter 8 is in order to filtering second harmonic, and little fan-filter 7 is then in order to filtering triple-frequency harmonics.
Load 9 is as the load of the output direct current power of receiving rectification antenna, and when launching the microwave of 2.45GHz to reception antenna, load 9 just can obtain direct current power, and this is the direct current energy be converted to by microwave energy by receiving rectification antenna.
Adopt the receiving rectification antenna of the low input power of present embodiment, its energy conversion efficiency can reach 60%.
Obviously, the above embodiment of the present invention is only for example of the present invention is clearly described, and is not the restriction to embodiments of the present invention.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here exhaustive without the need to also giving all execution modes.All any amendments done within the spirit and principles in the present invention, equivalent to replace and improvement etc., within the protection range that all should be included in the claims in the present invention.
Claims (7)
1. a RECTIFYING ANTENNA, comprise reception antenna module and rectification circuit module, it is characterized in that, described reception antenna module and rectification circuit module making are in printed substrate, and described reception antenna module installation output interface point is connected with the input interface point of rectification circuit module installation;
Described rectification circuit module comprises input interface point, match circuit, rectification circuit, DC filtering circuit, load; Described input interface point, match circuit, rectification circuit, DC filtering circuit, load connect in turn.
2. RECTIFYING ANTENNA according to claim 1, is characterized in that, described rectification circuit is multiplication of voltage full-wave rectifying circuit, comprises the one or two and second diode, a stauros, via hole earth point; The nine o'clock direction of described stauros is connected with match circuit, the six o'clock direction of stauros is connected with the negative electrode of the first diode, the anode of the first diode is connected with via hole earth point, the three direction of stauros is connected with the anode of the second diode, and the negative electrode of the second diode is connected with DC filtering circuit.
3. RECTIFYING ANTENNA according to claim 1, is characterized in that, described DC filtering circuit comprises little fan-filter, large fan-filter and line style minor matters filter; Described little fan-filter, large fan-filter are connected in turn with line style minor matters filter.
4. RECTIFYING ANTENNA according to claim 1, is characterized in that, this RECTIFYING ANTENNA is based on 2.45GHz WIFI frequency range.
5. RECTIFYING ANTENNA according to claim 1, is characterized in that, what described match circuit adopted is single detail impedance matching.
6. RECTIFYING ANTENNA according to claim 1, is characterized in that, the input impedance of described reception antenna module is 50 ohm.
7. RECTIFYING ANTENNA according to claim 2, is characterized in that, described first and second diodes are Schottky diodes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510115884.XA CN104767028A (en) | 2015-03-17 | 2015-03-17 | Rectification antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510115884.XA CN104767028A (en) | 2015-03-17 | 2015-03-17 | Rectification antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104767028A true CN104767028A (en) | 2015-07-08 |
Family
ID=53648738
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510115884.XA Pending CN104767028A (en) | 2015-03-17 | 2015-03-17 | Rectification antenna |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104767028A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106229611A (en) * | 2016-08-09 | 2016-12-14 | 中山大学 | A kind of high efficiency rectification antenna based on the input of microwave RFID frequency range small-power |
| CN106452116A (en) * | 2016-11-14 | 2017-02-22 | 中山大学 | Radiofrequency rectifying circuit of double-frequency double-branch structure |
| CN106603017A (en) * | 2016-11-16 | 2017-04-26 | 电子科技大学 | Harmonic inhibition power amplifier |
| CN110444910A (en) * | 2019-09-05 | 2019-11-12 | 重庆邮电大学 | A kind of 2.45GHz micro-strip RECTIFYING ANTENNA of regular hexagon structure |
| CN111342243A (en) * | 2020-02-27 | 2020-06-26 | 四川大学 | Impedance matching adjustable broadband rectification antenna based on resonance structure |
| CN112201945A (en) * | 2020-09-15 | 2021-01-08 | 武汉理工大学 | Flexible rectifying antenna |
| CN113178699A (en) * | 2021-04-29 | 2021-07-27 | 人民华智通讯技术有限公司 | Pilot frequency decoupling receiving and transmitting antenna applied to Beidou navigation system |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103367915A (en) * | 2013-07-10 | 2013-10-23 | 上海大学 | High-conversion-efficiency substrate integrated waveguide slot rectification antenna |
-
2015
- 2015-03-17 CN CN201510115884.XA patent/CN104767028A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103367915A (en) * | 2013-07-10 | 2013-10-23 | 上海大学 | High-conversion-efficiency substrate integrated waveguide slot rectification antenna |
Non-Patent Citations (1)
| Title |
|---|
| 李奥博: "无线能量传输系统中整流技术研究", 《中国优秀硕士学位论文全文数据库（工程科技Ⅱ辑）》 * |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106229611A (en) * | 2016-08-09 | 2016-12-14 | 中山大学 | A kind of high efficiency rectification antenna based on the input of microwave RFID frequency range small-power |
| CN106452116A (en) * | 2016-11-14 | 2017-02-22 | 中山大学 | Radiofrequency rectifying circuit of double-frequency double-branch structure |
| CN106603017A (en) * | 2016-11-16 | 2017-04-26 | 电子科技大学 | Harmonic inhibition power amplifier |
| CN110444910A (en) * | 2019-09-05 | 2019-11-12 | 重庆邮电大学 | A kind of 2.45GHz micro-strip RECTIFYING ANTENNA of regular hexagon structure |
| CN111342243A (en) * | 2020-02-27 | 2020-06-26 | 四川大学 | Impedance matching adjustable broadband rectification antenna based on resonance structure |
| CN112201945A (en) * | 2020-09-15 | 2021-01-08 | 武汉理工大学 | Flexible rectifying antenna |
| CN113178699A (en) * | 2021-04-29 | 2021-07-27 | 人民华智通讯技术有限公司 | Pilot frequency decoupling receiving and transmitting antenna applied to Beidou navigation system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104767028A (en) | Rectification antenna | |
| CN103367915B (en) | High-conversion-efficiency substrate integrated waveguide slot rectification antenna | |
| CN104767029A (en) | Micro-strip rectification antenna based on WIFI frequency band | |
| CN107968257B (en) | Voltage-multiplying rectification antenna with harmonic suppression function | |
| CN104300697A (en) | Separating type receiving and rectifying circuit | |
| CN108199151A (en) | A kind of energy information parallel transmission rectenna array | |
| CN103812226A (en) | Radio frequency energy collecting device applied to wireless mobile terminal | |
| CN106452117A (en) | Broadband rectifier for radio frequency energy collecting system | |
| CN102354805A (en) | Rectenna array for microwave reception | |
| CN104734368A (en) | Middle distance flat-plate wireless power transmission system based on magnetic resonance coupling | |
| CN102255527B (en) | Novel microwave intermodulation rectification circuit | |
| CN105305663A (en) | Multi-antenna high-efficiency radio frequency energy collector formed by multiple electrodes | |
| CN104283294A (en) | Wireless charging system for automobile | |
| CN105048608A (en) | Energy collection rectifier for environmental electromagnetic wave | |
| CN103311646B (en) | Based on the RECTIFYING ANTENNA of microwave photon structure | |
| CN108964232A (en) | A kind of 2.4G ISM band RF energy Acquisition Circuit | |
| CN107370252A (en) | Wireless mutually fill is put and wireless charging device | |
| CN202997713U (en) | Microwave radial type radio energy supply system for pure electric vehicle | |
| CN105743191B (en) | Wireless charging device and preparation method thereof based on MEMS micro Process planar coil | |
| CN204243917U (en) | Based on the device of the magnetic coupling resonance wireless energy transfer of repeat circuit | |
| CN105450046A (en) | High-efficiency differential rectification circuit applying impedance compressed network | |
| CN105048649A (en) | Environmental radio frequency energy collector based on electromagnetic metamaterial frequency selective surface | |
| CN104467466A (en) | Broadband microwave power transmission rectifying assembly | |
| CN210297326U (en) | One-stop mobile power supply for electronic equipment | |
| CN107069993A (en) | Device for converting electric energy based on wireless receiving |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| EXSB | Decision made by sipo to initiate substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150708 |
|
| WD01 | Invention patent application deemed withdrawn after publication |