CN107978856A - A kind of flexible easily conformal microwave rectification antennas of 2.45GHz - Google Patents
A kind of flexible easily conformal microwave rectification antennas of 2.45GHz Download PDFInfo
- Publication number
- CN107978856A CN107978856A CN201711078565.1A CN201711078565A CN107978856A CN 107978856 A CN107978856 A CN 107978856A CN 201711078565 A CN201711078565 A CN 201711078565A CN 107978856 A CN107978856 A CN 107978856A
- Authority
- CN
- China
- Prior art keywords
- antenna
- rectifying antenna
- flexible
- rectifying
- microwaves
- 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
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
- H01Q1/38—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith formed by a conductive layer on an insulating support
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/50—Structural association of antennas with earthing switches, lead-in devices or lightning protectors
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q23/00—Antennas with active circuits or circuit elements integrated within them or attached to them
Abstract
The invention discloses a kind of flexible RECTIFYING ANTENNA for 2.45GHz microwave power transmission systems, the 2.45GHz flexibilities RECTIFYING ANTENNA includes：Flexible sheet, microwave receiving microstrip antenna, rectifier diode, low pass input elliptic filter, output filter, match circuit；The flexible sheet uses felt cloth；The 2.45GHz flexibilities RECTIFYING ANTENNA uses linear polarization rectangular microstrip antenna of the center frequency point for 2.45GHz, is fed using micro-strip line side feedback mode.The present invention changes the rigidity of RECTIFYING ANTENNA, is easier RECTIFYING ANTENNA conformal with equipment, using the match circuit of the high matching effect of low-loss, improves rectification circuit efficiency；Flexible receiver antenna is designed using the common felt cloth in market, greatly reduces RECTIFYING ANTENNA research cost.After tested, flexible RECTIFYING ANTENNA efficiency is when load is 200 Ω up to 78%.
Description
Technical field
The invention belongs to antenna technical field, more particularly to a kind of 2.45GHz microwaves flexibility RECTIFYING ANTENNA.
Background technology
Microwave antenna rectification is the key component in microwave power transmission system, now still in the laboratory research stage.Both at home and abroad
All concentrate on the efficiency of RECTIFYING ANTENNA substantially at this stage, and the key application factor consideration for RECTIFYING ANTENNA is less.It is such as whole
The assembly problem of current antenna and charging equipment is irregular or uneven for surface configuration if RECTIFYING ANTENNA is hard medium
Its installation is more difficult for whole equipment.RECTIFYING ANTENNA plate used in each enterprise and research unit is essentially special height at this stage
Frequency plate, is hard medium, and cost is very high, if microwave power transmission in future is successfully applied to each wireless power transmission occasion, cost
It can remain high, be unfavorable for the market expansion.Felt is furnished with extremely excellent flex capability, so structure can be preferably total to carrier
Shape, and good performance can be kept, cost is all low compared with common PR4 plates.
In conclusion the RECTIFYING ANTENNA of existing conceptual phase 2.45GHz frequencies is hard medium, RECTIFYING ANTENNA is not utilized with setting
Installation between standby.It is and higher using the research of high frequency plate, cost of manufacture.
The content of the invention
It is an object of the invention to provide a kind of 2.45GHz microwaves flexibility RECTIFYING ANTENNA, it is intended to solves current 2.45GHz frequencies
The RECTIFYING ANTENNA of rate is hard medium, does not utilize the installation of RECTIFYING ANTENNA and equipment room, and is studied using high frequency plate, cost of manufacture
The problem of higher.
The present invention is achieved in that a kind of 2.45GHz microwaves flexibility RECTIFYING ANTENNA, is totally divided into 2.45GHz flexibility squares
Shaped microstrip reception antenna and the microwave rectifier circuit of SMA females coaxial connector and 2.45GHz (including input low-pass filter,
Match circuit, output filter, rectifier diode, load) and SMA male connector coaxial connectors, its connection diagram such as Fig. 1 institutes
Show.
Microwave rectifier circuit includes low-pass input filter, match circuit, Schottky barrier diodes, output filtering again
Device, wherein input filter are low-pass elliptic filter, and output filter forms for the bulky capacitor of the long microstrip line in λ/4 and 100PF,
The length of the long microstrip line in λ/4 can slightly optimize according to rectification efficiency in the design.Wherein rectification circuit is designed using FR4.It is flexible
Rectangular microstrip antenna send the 2.45GHz microwave receivings in space to rectification circuit by coaxial connector, in rectification circuit
Low-pass input filter filters out high frequency spurs and is transmitted to rectifier diode, and microwave is changed into direct current and is transmitted to defeated by single diode
Go out wave filter, output filter prevents fundamental wave from only allowing direct current to pass through with higher hamonic wave.Match circuit effect therein is will be whole
Current circuit impedance matching reduces loss as far as possible to 50 ohm while realizing and matching.Microwave antenna is whole with microwave
Current circuit carries out split design, can reduce the area of visual RECTIFYING ANTENNA, and then increase the receiving efficiency of microwave.It is described
2.45GHz microwave rectification antennas include：Felt cloth plate, SMA coaxial connectors, flexible rectangular microstrip antenna, rectifier diode,
Low pass ellipse input filter, match circuit, output filter.
Further, the microstrip antenna plate uses felt cloth.
Further, the 2.45GHz microwaves flexibility RECTIFYING ANTENNA uses center frequency point micro- for the linear polarization rectangle of 2.45GHz
Band antenna, is fed using micro-strip line side feedback mode.
2.45GHz microwave rectifications antenna provided by the invention, the Insertion Loss of wave filter only have 0.8db, using high of low-loss
Match circuit with effect, match circuit are made of two sections of microstrip lines, see attached drawing 3；Being typically designed the RECTIFYING ANTENNA of 2.45GHz makes
It is Rogers series of high-frequency plate or FR4 conventional sheets with plate, both are hard medium plate.In terms of cost, this
At least 300 yuan or so of the cost of Rogers series plate list set RECTIFYING ANTENNA exemplified by design, FR4 conventional sheets list set cost 50
Member or so, and the design designs RECTIFYING ANTENNA using common felt cloth plate, single RECTIFYING ANTENNA cost that covers is only 12 yuan.Done
Contrast is small lot production, therefore flexible, easily conformal RECTIFYING ANTENNA, but also drop significantly can be not only made using felt cloth plate
Low RECTIFYING ANTENNA research, cost of manufacture.After tested, the rectification efficiency of flexible RECTIFYING ANTENNA is up to when load is 200 Ω
To 78%.
Brief description of the drawings
Fig. 1 is 2.45GHz flexible rectangulars microstrip antenna structure schematic diagram provided in an embodiment of the present invention.
Fig. 2 is 2.45GHz flexible rectangulars microstrip antenna structure schematic diagram provided in an embodiment of the present invention.
Fig. 3 is 2.45GHz rectifier circuit structures schematic diagram provided in an embodiment of the present invention.
Embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, with reference to embodiments, to the present invention
It is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not used to
Limit the present invention.
The application principle of the present invention is explained in detail below in conjunction with the accompanying drawings.
As shown in Fig. 2, 2.45GHz microwaves flexibility RECTIFYING ANTENNA provided in an embodiment of the present invention includes：Flexible sheet, SMA
Coaxial connector, rectangular microstrip antenna, rectifier diode, low pass ellipse input filter, match circuit, output filter.
In an embodiment of the present invention：Plate uses felt cloth, can make flexible, easily conformal RECTIFYING ANTENNA.Wherein into
Originally it is the 4% of ROGERS series plates, is the 24% of FR4 conventional sheets.Use HFSS dimensional antenna design softwares design centre
Frequency point is the linear polarization rectangular microstrip antenna of 2.45GHz, is fed using micro-strip line side feedback mode, uses two sections of microstrip design squares
The matching of microstrip.The large signal characteristic of Schottky barrier diodes HSMS282B is emulated using radio frequency simulation software ADS,
And design match circuit.Rectifier diode is followed by λ/4 and grows the output low-pass filter for increasing capacitance.It is low-loss defeated to design quadravalence
Enter low-pass elliptic filter.Input filter and rectifier diode and the match circuit of output filter are designed, it is micro- using two sections
Band line, matching is realized with the loss for trying one's best small.Univers parameter optimization is carried out in ADS, it is optimal to reach rectification efficiency,
Pcb board is improved in Altium Designer.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
All any modification, equivalent and improvement made within refreshing and principle etc., should all be included in the protection scope of the present invention.
Claims (3)
1. a kind of 2.45GHz microwaves flexibility RECTIFYING ANTENNA, it is characterised in that the 2.45GHz microwaves flexibility RECTIFYING ANTENNA includes：
Flexible sheet, rectangular microstrip antenna, rectifier diode, low pass discrepancy wave filter, match circuit, output filter.
2. 2.45GHz microwaves flexibility RECTIFYING ANTENNA as claimed in claim 1, it is characterised in that the plate uses flexible hair
Felt-cloth.
3. 2.45GHz microwaves flexibility RECTIFYING ANTENNA as claimed in claim 1, it is characterised in that the 2.45GHz microwaves are flexible
RECTIFYING ANTENNA uses linear polarization rectangular microstrip antenna of the center frequency point for 2.45GHz, is fed using micro-strip line side feedback mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711078565.1A CN107978856A (en) | 2017-11-06 | 2017-11-06 | A kind of flexible easily conformal microwave rectification antennas of 2.45GHz |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711078565.1A CN107978856A (en) | 2017-11-06 | 2017-11-06 | A kind of flexible easily conformal microwave rectification antennas of 2.45GHz |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107978856A true CN107978856A (en) | 2018-05-01 |
Family
ID=62013089
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711078565.1A Pending CN107978856A (en) | 2017-11-06 | 2017-11-06 | A kind of flexible easily conformal microwave rectification antennas of 2.45GHz |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107978856A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1639914A (en) * | 2002-03-06 | 2005-07-13 | 独立行政法人情报通信研究机构 | Microstrip antenna |
| JP2007116515A (en) * | 2005-10-21 | 2007-05-10 | Mitsubishi Electric Corp | Balanced two-wire line rectenna and rectenna device using the same |
| CN105765783A (en) * | 2013-08-09 | 2016-07-13 | 德雷森科技（欧洲）有限公司 | Rf energy harvester |
-
2017
- 2017-11-06 CN CN201711078565.1A patent/CN107978856A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1639914A (en) * | 2002-03-06 | 2005-07-13 | 独立行政法人情报通信研究机构 | Microstrip antenna |
| JP2007116515A (en) * | 2005-10-21 | 2007-05-10 | Mitsubishi Electric Corp | Balanced two-wire line rectenna and rectenna device using the same |
| CN105765783A (en) * | 2013-08-09 | 2016-07-13 | 德雷森科技（欧洲）有限公司 | Rf energy harvester |
Non-Patent Citations (1)
| Title |
|---|
| 张琳: "《一种小型化高效微波整流天线的设计》", 《西北大学学报》 * |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180501 |