CN200986970Y - Balanced antenna of high gain wideband - Google Patents
Balanced antenna of high gain wideband Download PDFInfo
- Publication number
- CN200986970Y CN200986970Y CN 200620042789 CN200620042789U CN200986970Y CN 200986970 Y CN200986970 Y CN 200986970Y CN 200620042789 CN200620042789 CN 200620042789 CN 200620042789 U CN200620042789 U CN 200620042789U CN 200986970 Y CN200986970 Y CN 200986970Y
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- 238000005452 bending Methods 0.000 claims description 2
- 230000001939 inductive effect Effects 0.000 claims description 2
- 238000005516 engineering process Methods 0.000 abstract description 7
- 238000010586 diagram Methods 0.000 description 7
- 238000004891 communication Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 230000001965 increasing effect Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 230000009351 contact transmission Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 229920006255 plastic film Polymers 0.000 description 1
- 230000010287 polarization Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
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Abstract
The utility model belongs to antenna technology field, which designs a balanced antenna with high performance. The two arms of dipole are separately bended to two sides on one plane, forming an S-typed or S-image-shaped antenna, which increases the receiving area of the antenna. The inductance impedance-matching network is adopted near the feed of the antenna, which realizes the matching of wide band of the antenna impedance and the circuit impedance. The antenna with high gains and balanced wide band is achieved by adopting the utility model.
Description
Technical field
The utility model belongs to antenna technical field, has designed a kind of high performance balancing antenna.
Background technology
In recent years, automatic identifying method is in many service fields, aspect sale of goods and the logistics distribution, in commercial department, obtained popularizing fast and promoting in manufacturing enterprise and the material field of circulation.
Several years ago, bar code---paper tape has caused a revolution and has obtained extensive use in the recognition system field.Today, this bar code---paper tape can not satisfy people's demand under increasing situation.Though bar code is very cheap, its weak point is that storage capacity is little and can not rewrite.
A kind of technical best solution be with storage in a silicon.In daily life, having the IC-card of arranging the contact (phone IC-card, bank card etc.) is the most general structure of electric data carrier.Yet concerning IC-card, in many cases, the connection of mechanical contact is insecure.Data between the reader under data medium and one are carried out non-contact transmission with much flexible.According to the energy and the data transmission method that use, we are called radio-frequency recognition system (RFID-Radio Frequency Identification) to non-contacting recognition system.Therefore, RFID is that a kind of radio wave that utilizes is read and write programmed recording medium, radio-frequency technique is combined with the IC-card technology and can be used for the technology of remote, moving-target, wireless identification.
Rfid system is in concrete application process, and according to different application purposes and applied environment, the composition of system can be different, but with regard to its operation principle, system generally all is made up of transponder, reader and PC.Transponder should be placed on the object that will discern, can send and receive information, and can do processing such as read/write according to the operational order of receiving; Reader is to gather transponder information and transponder is sent the device of operational order, and the order of sending comprises read/write, selects order such as cancellation selections grade.
Antenna is a critical component in radio communication and the radar system as the equipment of a kind of reception and launching electromagnetic wave, and it is the interface of free space and transmission line, is commonly referred to " electronic eyes " or " electronic ear ".The effect of antenna in various radiotechnics equipment is identical basically.Any radiotechnics equipment all transmits signal by electromagnetic wave, and it must have the energy radiation or receive electromagnetic device, and antenna is exactly this device, so the effect of antenna at first is exactly radiation and receives electromagnetic wave.Based on such prerequisite, since the generation of wireless communication technique, antenna just has been born thereupon.
From the simplest wire antenna, surface antenna, antenna technology has experienced innovation for several times.Along with the expansion in antenna applications field, being showing improvement or progress day by day of wireless communication technology, people are more and more higher to the requirement of antenna: operating distance is far away as much as possible, and it is big as much as possible to gain, and power consumption is as much as possible little, and efficient is high as much as possible, and polarization is coupling or the like as much as possible.Invented technology such as microstrip antenna and antenna array in recent years again, made antenna be applied in more field, intelligence communication field particularly is such as the TD-SCDMA mobile phone.
Electronic tag prints on paper or the plastic film for the label that reduces cost often adopts, and label is attached to and means to have different resonance frequencys on the different objects like this.The environment of periphery is also bigger to the resonance frequency influence of electronic tag.Also having the frequency range of the electronic tag of UHF is 860MHz-960MHz, than the frequency band of broad, guarantee that country variant uses certain frequency band wherein, and label can use in any country.It is very necessary designing wide band electronic label antenna for this reason.
The electromagnetic wave energy that the read write line that energy receives from label antenna in passive electronic tag sends.The gain of electronic tag is big more for this reason, means that the energy of electronic tag reception is many more, and the communication distance of system is also just far away more.
Therefore the broadband electronic label antenna that designs high-gain is very important to the communication distance that increases system.
Summary of the invention
The purpose of this utility model is the electronic label antenna that has supplied a kind of high-gain broadband, and it is low to have solved conventional ultrahigh frequency electronic tag antenna gain, the problem that frequency band is narrow.Concrete implementation method is as follows:
Two arms of dipole antenna are on same straight line, stretch to both sides respectively.The utility model antenna by in same plane with two arms of dipole respectively to its both sides bending, form the antenna of a nearly S word or S image shape, reduce the length of antenna, but increased the horizontal area of antenna like this, and then increased the gain of antenna.
Adopt metal wire to form an open loop inductance that does not seal near antenna feed, two arms of this inductance and distortion dipole and the circuit that is connected with antenna have constituted the filter construction of wideband.So both realized that antenna had high gain, guaranteed the broadband impedance matching of antenna and its connecting circuit simultaneously.
Description of drawings
The antenna schematic diagram of Fig. 1 S font image shape;
A kind of distortion antenna schematic diagram of Fig. 2 S font image shape;
A kind of distortion antenna schematic diagram of Fig. 3 S font image shape.
Number in the figure: the 10th, the distortion right arm of dipole antenna; The 11st, the distortion left arm of dipole antenna; The 12nd, be used for the inductance of impedance matching; The 13rd, two feed placement of antenna.
Embodiment
Further specifically describe the utility model antenna below in conjunction with the accompanying drawing example.
The antenna schematic diagram of Fig. 1 S font image shape; Wherein the right arm of dipole antenna is bent downwardly earlier, makes progress again, and is crooked left, forms the right arm of distortion dipole, sees 10 in the diagram; The left arm of dipole antenna is bent upwards earlier, and is downward again, crooked to the right, forms the right arm of distortion dipole, sees 11 in the diagram.Straight like this dipole two arms have conveniently become the mirror image form of S word.
The feed placement of antenna still is the feed placement of dipole, sees illustrated 12 parts.Constitute inc inductive loop 13 at the practical metal wire of the feed placement of antenna, the circuit that this inductance is connected with distortion dipole and antenna has constituted the impedance matching network in broadband.
Fig. 2 and Fig. 3 say the distortion antenna schematic diagram of S font image shape; These two kinds of antennas and other possible distressed structure all satisfy two essential characteristics of above mentioned antenna.
It should be noted last that, above embodiment is only unrestricted in order to technical scheme of the present invention to be described, although the present invention is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can make amendment or be equal to replacement technical scheme of the present invention, and not breaking away from the spirit and scope of technical solution of the present invention, it all should be encompassed in the middle of the claim scope of the present invention.
Claims (1)
- Designed a kind of balancing antenna of high-gain broadband, its feature shows as:1) in same plane with two arms of dipole respectively to its both sides bending, form the antenna of a nearly S word or S image shape;2) near antenna feed, adopt the inductive impedance matching network to realize the Broadband Matching of antenna impedance and circuit impedance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620042789 CN200986970Y (en) | 2006-06-13 | 2006-06-13 | Balanced antenna of high gain wideband |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620042789 CN200986970Y (en) | 2006-06-13 | 2006-06-13 | Balanced antenna of high gain wideband |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200986970Y true CN200986970Y (en) | 2007-12-05 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620042789 Expired - Lifetime CN200986970Y (en) | 2006-06-13 | 2006-06-13 | Balanced antenna of high gain wideband |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200986970Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102169554A (en) * | 2011-03-30 | 2011-08-31 | 陈立强 | Multi-mode passive tag |
| CN102956967A (en) * | 2012-10-24 | 2013-03-06 | 深圳大学 | Circularly polarized RFID (Radio Frequency Identification Device) tag antenna |
| TWI572097B (en) * | 2015-07-14 | 2017-02-21 | 智易科技股份有限公司 | Dual-band antenna |
| CN111868748A (en) * | 2018-01-11 | 2020-10-30 | G·格罗夫 | Metal fastener with embedded RFID tag and method for producing the same |
-
2006
- 2006-06-13 CN CN 200620042789 patent/CN200986970Y/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102169554A (en) * | 2011-03-30 | 2011-08-31 | 陈立强 | Multi-mode passive tag |
| CN102956967A (en) * | 2012-10-24 | 2013-03-06 | 深圳大学 | Circularly polarized RFID (Radio Frequency Identification Device) tag antenna |
| CN102956967B (en) * | 2012-10-24 | 2015-07-15 | 深圳大学 | Circularly polarized RFID (Radio Frequency Identification Device) tag antenna |
| TWI572097B (en) * | 2015-07-14 | 2017-02-21 | 智易科技股份有限公司 | Dual-band antenna |
| CN111868748A (en) * | 2018-01-11 | 2020-10-30 | G·格罗夫 | Metal fastener with embedded RFID tag and method for producing the same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP02 | Change in the address of a patent holder |
Address after: 2, building 01, No. 10, Chang Dong Lu, No. 1387, Shanghai, Pudong New Area: 201203 Patentee after: Kunrui Electronic Science-Technology Co., Ltd., Shanghai Address before: Pudong Zhangjiang GuoShouJing 498 Shanghai Road, Software Park Building No. 20 room 207, zip code: 201203 Patentee before: Kunrui Electronic Science-Technology Co., Ltd., Shanghai |
|
| CX01 | Expiry of patent term |
Granted publication date: 20071205 |
|
| EXPY | Termination of patent right or utility model |