CN209169388U - A kind of RFID antenna - Google Patents
A kind of RFID antenna Download PDFInfo
- Publication number
- CN209169388U CN209169388U CN201821774583.3U CN201821774583U CN209169388U CN 209169388 U CN209169388 U CN 209169388U CN 201821774583 U CN201821774583 U CN 201821774583U CN 209169388 U CN209169388 U CN 209169388U
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- CN
- China
- Prior art keywords
- antenna
- bottom case
- rfid antenna
- rfid
- printed board
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Abstract
The utility model relates to a kind of RFID antennas, including antenna house, antenna bottom case, the printed board for being etched with feeding network and antenna oscillator, support column, coupling piece and radio-frequency joint；The antenna house is cap-type structure, is equipped with groove on the inside of the antenna house；Riveting has stud on the antenna bottom case；The printed board is parallel with the bottom plate of the antenna bottom case and passes through the Stud connection；The feeding network includes a quarter ground line, patch capacitor, power splitter, matching minor matters；The antenna oscillator is connect in such a way that side is fed with the feeding network；The coupling piece is thin flat sheet of metal, parallel with the printed board and connected by the support column；The radio-frequency joint is mounted on the lead to the hole site of bottom case by screw.Implement the utility model RFID antenna, have the advantages that be easily installed, low cost, high-performance, water proof and dust proof.
Description
Technical field
The utility model relates to wireless data transmission fields, more specifically to a kind of RFID antenna.
Background technique
RFID technique (i.e. Radio Frequency Identification Technology) is widely used in the intelligent managements such as cargo and personnel's vehicle, and market is right
While the performance of RFID antenna proposes requirements at the higher level, it is also desirable to it is smaller to reduce cost, volume.Especially current RFID antenna is wide
General to be applied to traffic, warehousing management, personal management etc., the environment of application is more complicated, needs antenna with high performance simultaneously
Also there is certain degree of protection, just more stringent requirements are proposed to the design of antenna and structure for this.And existing RFID antenna
The problems such as that there are sizes is bigger than normal, covering is insufficient, degree of protection is weak, high expensive.
Utility model content
The technical problem to be solved by the present invention is to, for the prior art above-mentioned RFID antenna size it is bigger than normal, cover
The defects of lid is insufficient, degree of protection is weak, high expensive, provide it is a kind of be easily installed, low cost, high-performance, water proof and dust proof
RFID antenna.
The technical scheme adopted by the utility model to solve the technical problem is as follows: constructing a kind of RFID antenna, including antenna
Cover, antenna bottom case, the printed board for being etched with feeding network and antenna oscillator, support column, coupling piece and radio-frequency joint；The day
Irdome is cap-type structure, is equipped with groove on the inside of the antenna house；Riveting has stud on the antenna bottom case；The printed board and institute
The bottom plate of antenna bottom case is stated in parallel and by the Stud connection；The feeding network includes a quarter ground line, patch electricity
Appearance, power splitter, matching minor matters；The coupling piece is thin flat sheet of metal, parallel with the printed board and connected by the support column
It connects；The radio-frequency joint is mounted on the lead to the hole site of bottom case by screw.
Further, the RFID antenna further includes sealing rubber ring, and the sealing rubber ring is mounted on the inside of the antenna house
Groove in.
Further, the RFID antenna further includes vent valve, and the vent valve is mounted on the antenna bottom case.
Further, the material of the antenna house is plastic cement.
Further, the material of coupling piece is aluminium.
Further, the printed board is single-side coated copper plate, and the feeding network and the antenna oscillator are etched in described
On single-side coated copper plate.
Further, the antenna oscillator includes at least 2 oscillators, in symmetric arrays.
Further, the length of a quarter ground line is a quarter length of a microstrip line, and end passes through
Screw ground connection, for expanding the RFID antenna bandwidth.
Further, the power splitter is one-to-two power splitter, for power averaging to be distributed to the antenna oscillator.
A kind of RFID antenna for implementing the utility model, has the advantages that this RFID antenna structure is simply divided into
Four antenna house, bottom case, printed board and male part major parts, wherein antenna house and bottom case are engaged, and are tightly combined and the two
Junction is equipped with sealing rubber ring, and antenna bottom case is equipped with vent valve, makes antenna that can have functions of waterproof and dustproof；The printing of antenna
On plate in the same plane feeding network and antenna oscillator etching, keep antenna more easy to produce and there is preferable conformity of production
With physics shock resistance；The male part of antenna is mounted on above printed board by stud, makes that antenna gain is higher, performance more has
It is excellent.Therefore, this RFID antenna have be easily installed, low cost, high-performance, water proof and dust proof benefit.
Detailed description of the invention
Below in conjunction with accompanying drawings and embodiments, the utility model is described in further detail, in attached drawing:
Fig. 1 is the Structure explosion diagram of the utility model RFID antenna；
Fig. 2 is the printed board etch figures(s) of the utility model RFID antenna；
Specific embodiment
The utility model embodiment is described further below in conjunction with attached drawing, the present embodiment only represents a kind of best reality
Mode is applied, limitations of the present invention should not be constituted.
As shown in Figure 1, the use of the new type RFID antenna includes antenna house 1, antenna bottom case 2, printed board 3, male part 4, branch
Dagger 5, radio-frequency maser 6, sealing rubber ring 7 and vent valve 8.
Antenna house 1 is a cap-type plastic parts, is made of integrated injection molding technique, 1 medial surface of antenna house, which is provided with, to be surrounded
One week groove, the interior installation of groove can install sealing rubber ring 7；Antenna bottom case 2 is metal plate bottom case, and riveting on antenna bottom case 2 has
Stud is simultaneously equipped with vent valve 8；Antenna house 1 is installed together with antenna bottom case 2 by screw, and the edge of antenna bottom case 2 is pressed in
On the sealing rubber ring 7 of antenna house medial surface；Printed board 3 is mounted on 2 medial surface of antenna bottom case by stud and screw, printed board
3 is parallel with 2 bottom surface of antenna bottom case.Male part 4 is thin flat sheet of metal, is mounted on above printed board by support column 5, and with printing
Plate is parallel and is kept fixed height.Radio-frequency maser 6 is mounted on the through-hole of 2 side of antenna bottom case, and passes through screw and 2 phase of antenna bottom case
It connects, radio-frequency maser 6 is connect with the mode that printed board 3 is welded.
As shown in Fig. 2, printed board 3 is single-side coated copper plate, it is etched with feeding network and antenna oscillator 35；Feeding network setting
Patch capacitor 31, a quarter ground line 32, power splitter 34 and matching minor matters 33；Patch capacitor 31 for match feed side with
Rear end matching network, capacitance can be adjusted according to match condition；The length of a quarter ground line 32 is one
The a quarter length of 920MHZ wave microstrip line, and end is grounded by screw, for expanding the beamwidth of antenna, adjustment
Match；Power splitter 34 is one-to-two power splitter, and power averaging is distributed to two antenna oscillators 35；Matching minor matters 33 can be used for adjusting
The problems such as antenna resonant frequency, adjustment antenna match is spent.
Above-described embodiments merely represent several embodiments of the utility model, the description thereof is more specific and detailed,
But it should not be understood as limiting the scope of the patent of the utility model.It should be pointed out that for the common of this field
For technical staff, without departing from the concept of the premise utility, various modifications and improvements can be made, these all belong to
In the protection scope of the utility model.Therefore, the scope of protection shall be subject to the appended claims for the utility model patent.
Claims (9)
1. a kind of RFID antenna, including antenna house, antenna bottom case, the printed board for being etched with feeding network and antenna oscillator, support
Column, coupling piece and radio-frequency joint, it is characterised in that: the antenna house is cap-type structure, is equipped with groove on the inside of the antenna house；
Riveting has stud on the antenna bottom case；The printed board is parallel with the bottom plate of the antenna bottom case and is connected by the stud
It connects；The feeding network includes a quarter ground line, patch capacitor, power splitter, matching minor matters；The antenna oscillator passes through side
The mode of feed is connect with the feeding network；The coupling piece is thin flat sheet of metal, parallel with the printed board and pass through institute
State support column connection；The radio-frequency joint is mounted on the lead to the hole site of bottom case by screw.
2. RFID antenna according to claim 1, it is characterised in that: the RFID antenna further includes sealing rubber ring, described close
Sealing rubber ring is mounted in the groove on the inside of the antenna house.
3. RFID antenna according to claim 1, it is characterised in that: the RFID antenna further includes vent valve, described ventilative
Valve is mounted on the antenna bottom case.
4. RFID antenna according to claim 1, it is characterised in that: the material of the antenna house is plastic cement.
5. RFID antenna according to claim 1, it is characterised in that: the material of coupling piece is aluminium.
6. RFID antenna according to claim 1, it is characterised in that: the printed board is single-side coated copper plate, the transmission network
Network and the antenna oscillator are etched on the single-side coated copper plate.
7. RFID antenna according to claim 1, it is characterised in that: the antenna includes at least two antenna oscillator, is in pair
Claim arrangement.
8. RFID antenna according to claim 1, it is characterised in that: the length of a quarter ground line is a micro-strip
The a quarter length of line, end is grounded by screw, for expanding the RFID antenna bandwidth.
9. RFID antenna according to claim 1, it is characterised in that: the power splitter is one-to-two power splitter, and being used for will
Power averaging distributes to the antenna oscillator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821774583.3U CN209169388U (en) | 2018-10-23 | 2018-10-23 | A kind of RFID antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821774583.3U CN209169388U (en) | 2018-10-23 | 2018-10-23 | A kind of RFID antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209169388U true CN209169388U (en) | 2019-07-26 |
Family
ID=67335999
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821774583.3U Active CN209169388U (en) | 2018-10-23 | 2018-10-23 | A kind of RFID antenna |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209169388U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116306721A (en) * | 2023-03-22 | 2023-06-23 | 重庆大学附属三峡医院 | High-throughput RFID identification device and management system for medical supplies |
-
2018
- 2018-10-23 CN CN201821774583.3U patent/CN209169388U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116306721A (en) * | 2023-03-22 | 2023-06-23 | 重庆大学附属三峡医院 | High-throughput RFID identification device and management system for medical supplies |
| CN116306721B (en) * | 2023-03-22 | 2024-02-06 | 重庆大学附属三峡医院 | High-throughput RFID identification device and management system for medical supplies |
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