CN201117815Y - Low cost broad band small volume high gain linear polarization antenna - Google Patents
Low cost broad band small volume high gain linear polarization antenna Download PDFInfo
- Publication number
- CN201117815Y CN201117815Y CNU2006200483169U CN200620048316U CN201117815Y CN 201117815 Y CN201117815 Y CN 201117815Y CN U2006200483169 U CNU2006200483169 U CN U2006200483169U CN 200620048316 U CN200620048316 U CN 200620048316U CN 201117815 Y CN201117815 Y CN 201117815Y
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- antenna
- radiating element
- radiation unit
- ground connection
- backboard
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Abstract
The utility model relates to a broadband small-volume high-magnification linear polarization antenna with low cost; a side wall that are connected and vertical to a grounding backboard are arranged on the circumambience of a radiation unit of the antenna and above the grounding backboard, and the height of the side wall is equal to the radiation unit; the radiation unit is firmly connected with a nylon screw and the grounding backboard through a supporting through hole; a U-shaped groove is arranged on two symmetrical shafts on the long side of the lank rectangular antenna radiation unit, and the opening direction of the groove is opposite to the long side of the radiation unit; a plurality of short-circuit lines are arranged at the bottom of the U-shaped groove and the axial symmetrical line of the radiation unit; the feeder line is arranged inside the U-shaped groove and the symmetrical axle of the radiation unit. Through the above measures, a broadband small-volume high-magnification linear polarization antenna with low cost is achieved.
Description
Technical field
The utility model belongs to antenna technical field, relates to the high performance broadband line poliarizing antenna of a kind of usefulness method for designing.
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.
The frequency range of the electronic tag of hyperfrequency is 860MHz-960MHz, therefore the reader antenna that designs the broadband makes it can satisfy each national communications band, becomes general product rather than is important performance index of hyperfrequency reader antenna design at certain national frequency range.Reducing cost of manufacture simultaneously also is one of key factor.
The small size design of reader antenna can be convenient and practical, generally adopts the pcb plate of high-k to come designing antenna, so just increased cost.Prior art constructions please see Figure 1a and Fig. 1 b, and Fig. 1 a is the oblique view of the microstrip line antenna of routine, and Fig. 1 b is the end view of the microstrip line antenna of routine.As seen from the figure, the radiating element 10 of antenna is on the medium 11 of pcb plate in the prior art, following backboard 12 ground connection, and the gain of the big more antenna of its area is big more, realizes the impedance matching of antenna by the position of moving the electric wire 13 of bursting.
Summary of the invention
The utility model belongs to antenna technical field, and purpose is to design a kind of high-performance linear polarized antenna.
The directivity that the gain of antenna equals antenna multiply by the efficient of antenna.The gain that this patent increases antenna from directivity and two aspects of efficient of antenna.Most effective dielectric layer is an air-gap in the microstrip antenna, and this patent adopts the efficient of the microstrip antenna increase antenna of air-gap for this reason, has reduced the cost of manufacture of antenna simultaneously.The radiating element of antenna uses nonconducting object support and is fixed on the ground plate.
The technical solution of the utility model is as follows:
A kind of broadband cheaply small size high-gain linear polarized antenna, its characteristics be, around the radiating element of antenna, design links to each other and vertical abutment wall with the ground connection backboard above the ground connection backboard, it is highly basic to maintain an equal level with described radiating element; Radiating element connects nylon screw by support through holes and the ground connection backboard is fixed up; On the symmetry axis of the long limit of straight rectangle radiating element, have a U font fluting, the long limit that the opening direction correspondence of this U font fluting radiating element; On the axial symmetry line of the radiating element bottom the U font fluting, be provided with the short circuit lines; The electric wire bar of bursting is positioned on the inside of U font fluting, the radiating element symmetry axis.
Design has fixed via to be used for fixing antenna on described ground connection backboard.
This patent increases the directivity of antenna by the abutment wall vertical with the ground connection backboard of design on the ground connection backboard of antenna, has increased the area of the equivalent ground connection backboard of antenna simultaneously, and then has increased the gain of antenna.Abutment wall height on the ground connection backboard equals the distance between antenna radiation unit and the ground connection backboard.Its length of side is slightly larger than the rectangle radiating element of antenna.
On the symmetry axis of the long limit of straight rectangular radiating element, opened a U font fluting.The opening portion of U font fluting is vertical with the long limit of antenna radiation unit.The antenna electric wire bar of bursting is positioned on the radiating element symmetry axis of opening part of U font fluting.So Deng Xiao increase the area of aerial radiation sheet, the gain that has increased antenna when having dwindled antenna volume.
On the antenna radiation unit axial symmetry line of the open bottom that the U font is slotted, designed conductor piece and linked to each other, constituted the short circuit lines with the ground plate of antenna.Further dwindled the radiating element of antenna.
Realized a kind of broadband cheaply small size high-gain linear polarized antenna by above-mentioned measure.
Description of drawings
Fig. 1 a is the oblique view of the microstrip line antenna of routine.
Fig. 1 b is the end view of the microstrip line antenna of routine.
Fig. 2 a is the oblique view of a kind of broadband cheaply of the utility model small size high-gain linear polarized antenna.
Fig. 2 b is the vertical view of a kind of broadband cheaply of the utility model small size high-gain linear polarized antenna.
Number in the figure:
The 10-radiating element 11-dielectric layer 12-ground connection backboard 13-electric wire of bursting
20-ground connection backboard 21-abutment wall 22-radiating element 23-support through holes
The routed electric wire bar 27-fixed via of 24-short circuit lines 25-U font fluting 26-
Embodiment
Further specifically describe this present invention's antenna design method below in conjunction with the accompanying drawing example.
Please see Figure 2a and Fig. 2 b, Fig. 2 a is the oblique view of a kind of broadband cheaply of the utility model small size high-gain linear polarized antenna, and Fig. 2 b is the top view of a kind of broadband cheaply of the utility model small size high-gain linear polarized antenna.As seen from the figure, the utility model around the radiating element 22 of antenna, the abutment wall 21 that the top design of the ground connection backboard 20 of antenna links to each other with backboard, its highly basic radiating element with antenna is fair; Radiating element 22 connects nylon screw by through hole 23 and ground connection backboard 20 is fixed up; Open the groove 25 of U font on radiating element, its opening direction correspondence the long limit of radiating element 22; Design has short circuit lines 24 between the radiating element 22 of the bottom correspondence of U font fluting 25 and ground connection backboard 20; The electric wire bar 26 of bursting is positioned at the inside of U font fluting.Design has through hole 27 to be used for fixing antenna on the ground connection backboard.
It should be noted last that, above embodiment is only unrestricted in order to the explanation the technical solution of the utility model, although the utility model 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 the technical solution of the utility model, and not breaking away from the spirit and scope of technical solutions of the utility model, it all should be encompassed in the middle of the claim scope of the present utility model.
Claims (2)
1. broadband small size high-gain linear polarized antenna cheaply, it is characterized in that, around the radiating element (22) of antenna, design links to each other with ground connection backboard (20) and vertical abutment wall (21) above the ground connection backboard (20), it is highly basic to maintain an equal level with described radiating element (22); Radiating element (22) connects nylon screw by support through holes (23) and ground connection backboard (20) is fixed up; On the long limit symmetry axis of straight rectangle radiating element (22), have a U font fluting (25), the long limit that the opening direction correspondence of this U font fluting (25) radiating element (22); On the axial symmetry line of the radiating element (22) bottom the U font fluting (25), be provided with short circuit lines (24); The electric wire bar (26) of bursting is positioned on the inside of U font fluting (25), radiating element (22) symmetry axis.
2. a kind of broadband cheaply according to claim 1 small size high-gain linear polarized antenna is characterized in that, going up design at described ground connection backboard (20) has fixed via (27) to be used for fixing antenna.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006200483169U CN201117815Y (en) | 2006-11-30 | 2006-11-30 | Low cost broad band small volume high gain linear polarization antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006200483169U CN201117815Y (en) | 2006-11-30 | 2006-11-30 | Low cost broad band small volume high gain linear polarization antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201117815Y true CN201117815Y (en) | 2008-09-17 |
Family
ID=39992399
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2006200483169U Expired - Lifetime CN201117815Y (en) | 2006-11-30 | 2006-11-30 | Low cost broad band small volume high gain linear polarization antenna |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201117815Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103280633A (en) * | 2013-05-30 | 2013-09-04 | 深圳市华信天线技术有限公司 | Satellite positioning antenna device |
| CN104157971A (en) * | 2014-08-19 | 2014-11-19 | 哈尔滨工业大学 | PIFA antenna with double-layer mushroom-type EBG structure being as ground plate and in capacitor structure |
| CN104269606A (en) * | 2014-10-24 | 2015-01-07 | 广东欧珀移动通信有限公司 | Mobile terminal antenna structure and mobile terminal |
| CN107038473A (en) * | 2016-01-18 | 2017-08-11 | 仁宝电脑工业股份有限公司 | For the slot antenna structure in electronic tag |
-
2006
- 2006-11-30 CN CNU2006200483169U patent/CN201117815Y/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103280633A (en) * | 2013-05-30 | 2013-09-04 | 深圳市华信天线技术有限公司 | Satellite positioning antenna device |
| CN103280633B (en) * | 2013-05-30 | 2016-06-29 | 深圳市华信天线技术有限公司 | A kind of satellite positioning antennas device |
| CN104157971A (en) * | 2014-08-19 | 2014-11-19 | 哈尔滨工业大学 | PIFA antenna with double-layer mushroom-type EBG structure being as ground plate and in capacitor structure |
| CN104269606A (en) * | 2014-10-24 | 2015-01-07 | 广东欧珀移动通信有限公司 | Mobile terminal antenna structure and mobile terminal |
| CN107038473A (en) * | 2016-01-18 | 2017-08-11 | 仁宝电脑工业股份有限公司 | For the slot antenna structure in electronic tag |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20080917 |
|
| EXPY | Termination of patent right or utility model |