CN104767029A - Micro-strip rectification antenna based on WIFI frequency band - Google Patents
Micro-strip rectification antenna based on WIFI frequency band Download PDFInfo
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- -1 polytetrafluoroethylene Polymers 0.000 claims description 9
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 9
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- 238000005516 engineering process Methods 0.000 abstract description 8
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 abstract description 2
- 229910052802 copper Inorganic materials 0.000 abstract description 2
- 239000010949 copper Substances 0.000 abstract description 2
- 239000004809 Teflon Substances 0.000 abstract 1
- 229920006362 Teflon® Polymers 0.000 abstract 1
- 101100257124 Caenorhabditis elegans sma-10 gene Proteins 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
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Abstract
The invention provides a micro-strip rectification antenna based on a WIFI frequency band. The micro-strip rectification antenna based on the WIFI frequency band comprises a micro-strip receiving antenna and a micro-strip rectification circuit, wherein the micro-strip receiving antenna is a coaxial feed rectangular micro-strip antenna, and the micro-strip receiving antenna and the micro-strip rectification circuit both adopt printing circuits and manufactured on two Teflon double-sided copper-coated substrates respectively and connected through an SMA head. The micro-strip rectification antenna based on the WIFI frequency band is produced in batches through the printing circuit technology, is low in cost, is easy to realize, is based on the 2.45GHZ and 5.8GHz WIFI frequency bands, is wide in application range, is easy to popularize and has the advantages of being high in gain and large in receiving efficiency.
Description
Technical field
The present invention relates to and relate to wireless energy transfer field, more specifically, relate to a kind of micro-band RECTIFYING ANTENNA based on WIFI frequency range.
Background technology
Microwave energy transfer (MPT:Microwave Power Transmission) to refer in vacuum or air not by other any transmission lines or waveguide to reach a kind of new transmission means of Energy Transfer.In 19 end of the centurys, American scientist Ni Gula tesla (Nikola Tesla) first proposes the concept of MPT.And to the sixties in last century, first MPT technology is just used to high power occasion, comprise space generating, ground to the transmission of electricity of the aircraft such as satellite and aircraft, military directed energy weapon, interspace detection etc.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, along with the develop rapidly of semiconductor technology and integrated electronic technology, the size of microelectronic circuit is more and more less, power consumption demand also gets more and more, make MPT technology obtain increasing concern in the application in low-power field, be especially applied on the portable electric appts such as radio-frequency recognition system, wireless sensor network system, biomedical devices.
Receiving rectification antenna is the key technology of MPT system, and its cardinal principle is the microwave energy received by reception antenna in space, then carries out rectification by microwave rectifier circuit, exports DC loaded work piece.Its key technical indexes is: the gain of reception antenna, the rectification efficiency of microwave rectifier circuit.Meanwhile, in order to adapt to electronics miniaturization and portable demand, need RECTIFYING ANTENNA volume little, lightweight.
But because traditional RECTIFYING ANTENNA volume is large, the shortcomings such as quality is large, cost of manufacture is high, conversion efficiency is low, make it use in a lot of occasion and are restricted.
Summary of the invention
The invention provides the micro-band RECTIFYING ANTENNA based on WIFI frequency range that a kind of structure is simple, volume is little, quality is little, gain is high.
In order to reach above-mentioned technical purpose, technical scheme of the present invention is as follows:
A kind of micro-band RECTIFYING ANTENNA based on WIFI frequency range, comprise Microstrip Receiving Antenna and micro-band rectification circuit, described Microstrip Receiving Antenna is coaxial feed rectangular microstrip antenna, described Microstrip Receiving Antenna and micro-band rectification circuit all adopt printed circuit, Microstrip Receiving Antenna and micro-band rectification circuit are produced on two pieces of polytetrafluoroethylene double-side copper-applying board substrates, and Microstrip Receiving Antenna and micro-band rectification circuit adopt SMA head to be connected.
Further, described micro-band rectification circuit comprises input filter, match circuit, rectifier diode and output filter; The input of input filter is connected with Microstrip Receiving Antenna by SMA head, the output of input filter is connected with the input of match circuit, the output of match circuit is connected with the input of output filter with the negative electrode of rectifier diode respectively, the plus earth of rectifier diode, the output of output filter is connected with load.
Further, described output filter is by microstrip line and an electric capacity; One end of microstrip line is connected with the output of match circuit, and the other end of microstrip line is connected with load with one end of electric capacity respectively; The other end ground connection of electric capacity.
Preferably, described Microstrip Receiving Antenna input impedance is 50 ohm.
Preferably, the electric capacity of described electric capacity to be size be 100pF.
Preferably, this RECTIFYING ANTENNA is the RECTIFYING ANTENNA based on 2.45GHz and 5.8GHz WIFI frequency range.
In the present invention, Microstrip Receiving Antenna is that a coaxial feed rectangular microstrip antenna is produced on polytetrafluoroethylene double-side copper-applying board substrate, the input impedance of antenna is 50 ohm, operating frequency is in 2.45GHz and 5.8GHz WIFI frequency range, the large gain of this antenna receiving area is high, receiving efficiency is large, Microstrip Receiving Antenna is connected with the same micro-band rectification circuit be produced on polytetrafluoroethylene double-side copper-applying board substrate by SMA head, such that the structure of whole antenna is simple, volume and quality also smaller.
Compared with prior art, the beneficial effect of technical solution of the present invention is:
1. the present invention adopts printed circuit technique to produce in batches, and cost is low, is easy to realize;
2. the present invention is based on 2.45GHz and 5.8GHzWIFI frequency range, applied widely, be easy to promote;
3. Microstrip Receiving Antenna of the present invention is made up of the microstrip antenna that receiving area is large, possesses the advantage that the gain of microband paste RECTIFYING ANTENNA is high, receiving efficiency is large.
Accompanying drawing explanation
Fig. 1 is Microstrip Receiving Antenna structural representation of the present invention;
Fig. 2 is micro-band rectifier circuit structure schematic diagram of the present invention;
Fig. 3 is Microstrip Receiving Antenna of the present invention and micro-band rectification circuit connection diagram;
Wherein, 1 represents Microstrip Receiving Antenna, and 2 represent micro-band rectification circuit, and 4 represent input filter, 5 represent match circuit, and 6 represent rectifier diode, and 7 represent output filter, and 8 represent electric capacity, 9 represent load, and 10 represent SMA head, and 11 represent polytetrafluoroethylene double-sided copper-clad board substrate.
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
As Figure 1-3, a kind of micro-band RECTIFYING ANTENNA based on WIFI frequency range, comprise Microstrip Receiving Antenna 1 and micro-band rectification circuit 2, Microstrip Receiving Antenna 1 is coaxial feed rectangular microstrip antenna, Microstrip Receiving Antenna 1 and micro-band rectification circuit 2 all adopt printed circuit, Microstrip Receiving Antenna 1 and micro-band rectification circuit 2 are produced on two pieces of polytetrafluoroethylene double-side copper-applying board substrates 11, and Microstrip Receiving Antenna 1 and micro-band rectification circuit 2 adopt SMA 10 to be connected.
In the present embodiment, microstrip antenna 1 and micro-band rectifying part 2 all adopt microstrip circuit to realize, and are produced on polytetrafluoroethylene double-sided copper-clad board substrate 11, substrate is thick is 0.8mm, dielectric constant is 2.55, and loss tangent is less than 0.001, and conduction band copper is thick is 0.035mm.
In the present embodiment, micro-band rectification circuit 2 comprises input filter 4, match circuit 5, rectifier diode 6 and output filter 7; The input of input filter 4 is connected with Microstrip Receiving Antenna 1 by SMA 10, the output of input filter 4 is connected with the input of match circuit 5, the output of match circuit 5 is connected with the input of output filter 7 with the negative electrode of rectifier diode 6 respectively, the plus earth of rectifier diode 6, the output of output filter 7 is connected with load 9.Input filter 4 is low pass filters, and adopt the simplest height impedance type structure, and the input impedance of antenna is consistent, its input and output impedance is all taken as 50 ohm; Match circuit 5 adopts single minor matters matching way; The model of rectifier diode 6 is Agilent HSMS-286B, SOT-323 encapsulation, anode order minor matters match circuit.
In the present embodiment, output filter 7 is by microstrip line and an electric capacity 8; One end of microstrip line is connected with the output of match circuit 5, and the other end of microstrip line is connected with load 9 with one end of electric capacity 8 respectively; The other end ground connection of electric capacity 8, output filter 7 passes through for the DC component allowing rectifier diode 6 produce, and odd high order harmonic component is constrained between input and output filter, to improve diode rectification efficiency simultaneously.
In the present embodiment, Microstrip Receiving Antenna 1 is 37.3mm × 48.8mm coaxial feed rectangular microstrip antenna, and the input impedance of reception antenna 1 is 50 ohm; The electric capacity of electric capacity 8 to be sizes be 100pF; RECTIFYING ANTENNA is the RECTIFYING ANTENNA based on 2.45GHz and 5.8GHz WIFI frequency range.Microstrip antenna 1 and micro-band rectifying part 2 SMA 10 is connected, and when launching the microwave of 2.45GHz or 5.8GHz to microstrip antenna 1, load 9 just can obtain by micro-band rectenna receiver, the DC energy that converts.。
In the present embodiment, Microstrip Receiving Antenna 1 is that a coaxial feed rectangular microstrip antenna is produced on polytetrafluoroethylene double-side copper-applying board substrate 11, the input impedance of antenna is 50 ohm, operating frequency is in 2.45GHz and 5.8GHz WIFI frequency range, the large gain of this antenna receiving area is high, receiving efficiency is large, Microstrip Receiving Antenna is connected with the same micro-band rectification circuit 2 be produced on polytetrafluoroethylene double-side copper-applying board substrate 11 by SMA 10, such that the structure of whole antenna is simple, volume and quality also smaller.
The corresponding same or analogous parts of same or analogous label;
Describe in accompanying drawing position relationship for only for exemplary illustration, the restriction to this patent can not be interpreted as;
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 (6)
1. the micro-band RECTIFYING ANTENNA based on WIFI frequency range, comprise Microstrip Receiving Antenna and micro-band rectification circuit, it is characterized in that, described Microstrip Receiving Antenna is coaxial feed rectangular microstrip antenna, described Microstrip Receiving Antenna and micro-band rectification circuit all adopt printed circuit, Microstrip Receiving Antenna and micro-band rectification circuit are produced on two pieces of polytetrafluoroethylene double-side copper-applying board substrates, and Microstrip Receiving Antenna and micro-band rectification circuit adopt SMA head to be connected.
2. the micro-band RECTIFYING ANTENNA based on WIFI frequency range according to claim 1, is characterized in that, described micro-band rectification circuit comprises input filter, match circuit, rectifier diode and output filter; The input of input filter is connected with Microstrip Receiving Antenna by SMA head, the output of input filter is connected with the input of match circuit, the output of match circuit is connected with the input of output filter with the negative electrode of rectifier diode respectively, the plus earth of rectifier diode, the output of output filter is connected with load.
3. the micro-band RECTIFYING ANTENNA based on WIFI frequency range according to claim 2, is characterized in that, described output filter is by microstrip line and an electric capacity; One end of microstrip line is connected with the output of match circuit, and the other end of microstrip line is connected with load with one end of electric capacity respectively; The other end ground connection of electric capacity.
4. the micro-band RECTIFYING ANTENNA based on WIFI frequency range according to claim 1, it is characterized in that, described Microstrip Receiving Antenna input impedance is 50 ohm.
5. the micro-band RECTIFYING ANTENNA based on WIFI frequency range according to claim 2, is characterized in that, the electric capacity of described electric capacity to be size be 100pF.
6. the micro-band RECTIFYING ANTENNA based on WIFI frequency range according to claim 1, it is characterized in that, this RECTIFYING ANTENNA is the RECTIFYING ANTENNA based on 2.45GHz and 5.8GHz WIFI frequency range.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510115925.5A CN104767029A (en) | 2015-03-17 | 2015-03-17 | Micro-strip rectification antenna based on WIFI frequency band |
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| CN201510115925.5A CN104767029A (en) | 2015-03-17 | 2015-03-17 | Micro-strip rectification antenna based on WIFI frequency band |
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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 |
| CN106684545A (en) * | 2016-12-15 | 2017-05-17 | 电子科技大学 | 2.45GHz microwave rectification antenna |
| CN106785390A (en) * | 2016-12-15 | 2017-05-31 | 电子科技大学 | A kind of 5.8GHz microwave rectification antennas of two antenna element |
| CN108054499A (en) * | 2017-12-07 | 2018-05-18 | 江西沃格光电股份有限公司 | Microwave antenna, device and microwave charging unit |
| CN108470976A (en) * | 2018-04-11 | 2018-08-31 | 西安交通大学 | A kind of W-waveband microfilter antenna based on rectangular coaxial cable architecture |
| CN110112546A (en) * | 2019-04-17 | 2019-08-09 | 电子科技大学 | A kind of 2450MHz reception rectenna array antenna |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1972075A (en) * | 2006-12-06 | 2007-05-30 | 中国科学院电工研究所 | A receiving rectification antenna |
| CN102354805A (en) * | 2011-06-22 | 2012-02-15 | 高宝强 | Rectenna array for microwave reception |
| CN104300697A (en) * | 2014-10-11 | 2015-01-21 | 中国电子科技集团公司第二十研究所 | Separating type receiving and rectifying circuit |
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2015
- 2015-03-17 CN CN201510115925.5A patent/CN104767029A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1972075A (en) * | 2006-12-06 | 2007-05-30 | 中国科学院电工研究所 | A receiving rectification antenna |
| CN102354805A (en) * | 2011-06-22 | 2012-02-15 | 高宝强 | Rectenna array for microwave reception |
| CN104300697A (en) * | 2014-10-11 | 2015-01-21 | 中国电子科技集团公司第二十研究所 | Separating type receiving and rectifying circuit |
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 |
| CN106684545A (en) * | 2016-12-15 | 2017-05-17 | 电子科技大学 | 2.45GHz microwave rectification antenna |
| CN106785390A (en) * | 2016-12-15 | 2017-05-31 | 电子科技大学 | A kind of 5.8GHz microwave rectification antennas of two antenna element |
| CN108054499A (en) * | 2017-12-07 | 2018-05-18 | 江西沃格光电股份有限公司 | Microwave antenna, device and microwave charging unit |
| CN108470976A (en) * | 2018-04-11 | 2018-08-31 | 西安交通大学 | A kind of W-waveband microfilter antenna based on rectangular coaxial cable architecture |
| CN110112546A (en) * | 2019-04-17 | 2019-08-09 | 电子科技大学 | A kind of 2450MHz reception rectenna array antenna |
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Application publication date: 20150708 |