CN113054398A - Railway detection tag antenna capable of improving power transmission coefficient - Google Patents
Railway detection tag antenna capable of improving power transmission coefficient Download PDFInfo
- Publication number
- CN113054398A CN113054398A CN202110276138.4A CN202110276138A CN113054398A CN 113054398 A CN113054398 A CN 113054398A CN 202110276138 A CN202110276138 A CN 202110276138A CN 113054398 A CN113054398 A CN 113054398A
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- China
- Prior art keywords
- power transmission
- annular structure
- detection tag
- transmission coefficient
- radiation arm
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
- H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
- H01Q1/2208—Supports; Mounting means by structural association with other equipment or articles associated with components used in interrogation type services, i.e. in systems for information exchange between an interrogator/reader and a tag/transponder, e.g. in Radio Frequency Identification [RFID] systems
- H01Q1/2216—Supports; Mounting means by structural association with other equipment or articles associated with components used in interrogation type services, i.e. in systems for information exchange between an interrogator/reader and a tag/transponder, e.g. in Radio Frequency Identification [RFID] systems used in interrogator/reader equipment
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
-
- 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
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- 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
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Abstract
The invention discloses a railway detection tag antenna for improving power transmission coefficient, belonging to the technical field of railway detection tag antennas and comprising an annular structure, wherein one end of the annular structure, which is far away from an arc-shaped surface, is connected with two metal supports; according to the invention, the metal support and the radiation arm are utilized to form the coupling inductor, so that better impedance matching can be realized between the antenna and the chip, and the purpose of improving the power transmission coefficient is achieved, on one hand, the physical strength of the structure can be improved, and on the other hand, the performance of the tag can be improved; the metal supports are symmetrically distributed along the central axis of the annular structure, and the two metal supports and the annular structure are arranged in an integrated structure, so that the annular structure can meet the installation requirement, has a certain load bearing capacity, and meanwhile, the metal supports also have a certain load bearing capacity, and the pressure resistance of the structure is enhanced; the radiation arm can realize the miniaturization of the radiation arm through certain bending treatment, and the volume of the railway detection tag antenna is reduced.
Description
Technical Field
The invention belongs to the technical field of railway detection tag antennas, and particularly relates to a railway detection tag antenna capable of improving power transmission coefficients.
Background
As a non-contact non-line-of-sight identification and data transmission technology, RFID has been widely used in the fields of logistics, asset management, access control, traffic monitoring, and the like.
The passive tag cannot transmit a signal by itself, the reader antenna transmits the signal to the receiving antenna through the transmitting antenna, the obtained energy is transmitted to the chip to activate the chip and then transmit information through the antenna, and in a reverse link from the tag to the reader, whether good impedance matching can be formed among the tag, the antenna and the chip becomes one of key factors influencing the performance of the RDID system, so that the optimization of the input impedance of the antenna becomes a very necessary research.
However, the existing design schemes are designed to optimize and match the antenna.
Disclosure of Invention
To solve the problems set forth in the background art described above. The invention provides a railway detection tag antenna for improving power transmission coefficient, which has the characteristics that a coupling inductor is formed by a metal support and a radiation arm, so that better impedance matching can be realized between the antenna and a chip, and the power transmission coefficient is improved.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides an improve power transmission coefficient's railway inspection label antenna, includes loop configuration, the one end that the arcwall face was kept away from to loop configuration is connected with two metal support, two be connected with the medium on the metal support, the inside of medium and be located the one side of keeping away from loop configuration and be equipped with the radiation arm, be equipped with the chip on the radiation arm.
Further, the two metal supports are symmetrically distributed along the central axis of the annular structure.
Further, the two metal supports and the annular structure are arranged in an integrated structure.
Further in the present invention, the material of the medium is FR4, and the dielectric constant of the medium is 4.4.
Further, in the present invention, the radiation arm is bent.
Compared with the prior art, the invention has the beneficial effects that:
1. the invention utilizes the metal support and the radiation arm to form the coupling inductor, thereby realizing better impedance matching between the antenna and the chip, achieving the purpose of improving the power transmission coefficient, improving the physical strength of the structure on one hand, and improving the performance of the tag on the other hand.
2. The metal supports are symmetrically distributed along the central axis of the annular structure, and the two metal supports and the annular structure are arranged in an integrated structure, so that the annular structure can meet the installation requirement, has a certain load bearing capacity, and meanwhile, the metal supports also have a certain load bearing capacity, and the pressure resistance of the structure is enhanced.
3. The radiation arm can realize the miniaturization of the radiation arm through certain bending treatment, and the volume of the railway detection tag antenna is reduced.
Drawings
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a partially cut-away perspective view of the present invention;
in the figure: 1. an annular structure; 2. a metal bracket; 3. a medium; 4. a radiation arm; 5. and (3) a chip.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-2, the present invention provides the following technical solutions: the utility model provides an improve power transmission coefficient's railway inspection label antenna, includes loop configuration 1, and loop configuration 1 keeps away from the one end of arcwall face and is connected with two metal support 2, is connected with medium 3 on two metal support 2, and the inside of medium 3 and be located the one side of keeping away from loop configuration 1 and be equipped with radiation arm 4, is equipped with chip 5 on radiation arm 4.
Specifically, the two metal supports 2 are symmetrically distributed along the central axis of the annular structure 1.
Specifically, the two metal brackets 2 and the annular structure 1 are arranged in an integrated structure.
Specifically, the material of the medium 3 is FR4, and the dielectric constant of the medium 3 is 4.4.
Specifically, the radiation arm 4 is bent.
The working principle and the using process of the invention are as follows: the two metal supports 2 are symmetrically distributed along the central axis of the annular structure 1, and the two metal supports 2 and the annular structure 1 are arranged in an integrated structure, so that the annular structure 1 can meet the installation requirement and has a certain load bearing capacity, and meanwhile, the metal supports 2 also have a certain bearing capacity, and the pressure resistance of the structure is enhanced;
the radiation arm 4 is subjected to certain bending treatment and assembled inside one side of the medium 3, which is far away from the annular structure 1, and the radiation arm 4 subjected to bending treatment can realize miniaturization and reduce the volume of the railway detection tag antenna;
the railway detection tag antenna utilizes the metal support 2 and the radiation arm 4 to form a coupling inductor, so that the antenna and the chip 5 realize better impedance matching, and the power transmission coefficient can be improved.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. A railway detection tag antenna for improving power transmission coefficient comprises a ring structure (1), and is characterized in that: the one end that the arcwall face was kept away from in annular structure (1) is connected with two metal support (2), two be connected with medium (3) on metal support (2), the inside of medium (3) and be located the one side of keeping away from annular structure (1) are equipped with radiation arm (4), be equipped with chip (5) on radiation arm (4).
2. The railway detection tag antenna for improving the power transmission coefficient as claimed in claim 1, wherein: the two metal supports (2) are symmetrically distributed along the central axis of the annular structure (1).
3. The railway detection tag antenna for improving the power transmission coefficient as claimed in claim 1, wherein: the two metal supports (2) and the annular structure (1) are arranged in an integrated structure.
4. The railway detection tag antenna for improving the power transmission coefficient as claimed in claim 1, wherein: the material of the medium (3) is FR4, and the dielectric constant of the medium (3) is 4.4.
5. The railway detection tag antenna for improving the power transmission coefficient as claimed in claim 1, wherein: the radiation arm (4) is bent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110276138.4A CN113054398B (en) | 2021-03-15 | 2021-03-15 | Railway detection tag antenna capable of improving power transmission coefficient |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110276138.4A CN113054398B (en) | 2021-03-15 | 2021-03-15 | Railway detection tag antenna capable of improving power transmission coefficient |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113054398A true CN113054398A (en) | 2021-06-29 |
| CN113054398B CN113054398B (en) | 2022-10-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110276138.4A Active CN113054398B (en) | 2021-03-15 | 2021-03-15 | Railway detection tag antenna capable of improving power transmission coefficient |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113546247A (en) * | 2021-07-09 | 2021-10-26 | 浙江大学 | Transfusion process monitoring device and method based on UHF RFID |
Citations (9)
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2021
- 2021-03-15 CN CN202110276138.4A patent/CN113054398B/en active Active
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| US20120068826A1 (en) * | 2010-09-17 | 2012-03-22 | Electronics And Telecommunications Research Institute | Directional Radio Frequency Identification (RFID) Label Tag For Measuring Postal Matter Delivery Service |
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Cited By (1)
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|---|---|---|---|---|
| CN113546247A (en) * | 2021-07-09 | 2021-10-26 | 浙江大学 | Transfusion process monitoring device and method based on UHF RFID |
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| CN113054398B (en) | 2022-10-28 |
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