CN113054398B - Railway detection tag antenna capable of improving power transmission coefficient - Google Patents
Railway detection tag antenna capable of improving power transmission coefficient Download PDFInfo
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- CN113054398B CN113054398B CN202110276138.4A CN202110276138A CN113054398B CN 113054398 B CN113054398 B CN 113054398B CN 202110276138 A CN202110276138 A CN 202110276138A CN 113054398 B CN113054398 B CN 113054398B
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- detection tag
- power transmission
- transmission coefficient
- railway detection
- tag antenna
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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
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/36—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
本发明公开了一种提高功率传输系数的铁路检测标签天线，属于铁路检测标签天线技术领域，包括环形结构，所述环形结构远离弧形面的一端连接有两个金属支架；本发明利用金属支架和辐射臂形成耦合电感，从而使天线和芯片间能够实现较好的阻抗匹配，以达到提高功率传输系数的目的，一方面可以提高结构的物理强度，另一方面可以提高标签的性能；金属支架沿环形结构的中轴对称分布，且两个金属支架与环形结构为一体式结构设置，使环形结构能够适应安装的需求，并且具有一定的负重能力，同时使金属支架也具有一定的承重能力，增强结构的抗压能力；辐射臂通过一定的弯折处理，能够实现辐射臂的小型化，减小铁路检测标签天线的体积。
The invention discloses a railway detection tag antenna with improved power transmission coefficient, which belongs to the technical field of railway detection tag antennas. It forms a coupled inductance with the radiating arm, so that better impedance matching between the antenna and the chip can be achieved, so as to achieve the purpose of improving the power transmission coefficient. On the one hand, it can improve the physical strength of the structure, and on the other hand, it can improve the performance of the label; It is symmetrically distributed along the central axis of the annular structure, and the two metal brackets and the annular structure are arranged in an integrated structure, so that the annular structure can meet the needs of installation and has a certain load-bearing capacity, and at the same time, the metal bracket also has a certain load-bearing capacity. The compression resistance of the structure is enhanced; the radiation arm can be miniaturized by a certain bending process, and the volume of the railway detection tag antenna can be reduced.
Description
技术领域technical field
本发明属于铁路检测标签天线技术领域，具体涉及一种提高功率传输系数的铁路检测标签天线。The invention belongs to the technical field of railway detection tag antennas, and in particular relates to a railway detection tag antenna with improved power transmission coefficient.
背景技术Background technique
RFID作为一种非接触非视距识别和数据传输技术，已经广泛运用于物流、资产管理、门禁、交通监控等领域。As a non-contact non-line-of-sight identification and data transmission technology, RFID has been widely used in logistics, asset management, access control, traffic monitoring and other fields.
被动标签不能自身发射信号，阅读器天线将信号通过发射天线传输到接收天线后，获得的能量将传送到芯片中，用于激活芯片再通过天线将信息传送出去，在标签到阅读器的反向链路中，标签、天线与芯片之间能否形成良好的阻抗匹配，成为影响RDID系统性能的关键因素之一，因此，优化天线的输入阻抗成为了非常必要的研究。Passive tags cannot transmit signals by themselves. After the reader antenna transmits the signal to the receiving antenna through the transmitting antenna, the energy obtained will be transmitted to the chip, which is used to activate the chip and then transmit the information through the antenna. In the reverse direction from the tag to the reader In the link, whether a good impedance matching can be formed between the tag, the antenna and the chip becomes one of the key factors affecting the performance of the RDID system. Therefore, optimizing the input impedance of the antenna has become a very necessary research.
但现有的设计方案都是在天线的设计上去做优化和匹配的工作。However, in the existing design schemes, the optimization and matching work is done on the design of the antenna.
发明内容SUMMARY OF THE INVENTION
为解决上述背景技术中提出的问题。本发明提供了一种提高功率传输系数的铁路检测标签天线，具有利用金属支架和辐射臂形成耦合电感，从而使天线和芯片间能够实现较好的阻抗匹配，提高功率传输系数的特点。In order to solve the problems raised in the above background art. The invention provides a railway detection tag antenna with improved power transmission coefficient, which has the characteristics of utilizing a metal support and a radiation arm to form a coupling inductance, so that better impedance matching can be realized between the antenna and a chip, and the power transmission coefficient can be improved.
为实现上述目的，本发明提供如下技术方案：一种提高功率传输系数的铁路检测标签天线，包括环形结构，所述环形结构远离弧形面的一端连接有两个金属支架，两个所述金属支架上连接有介质，所述介质的内部且位于远离环形结构的一侧装配有辐射臂，所述辐射臂上装配有芯片。In order to achieve the above object, the present invention provides the following technical solutions: a railway detection tag antenna with improved power transmission coefficient, including a ring structure, two metal brackets are connected to the end of the ring structure away from the arc surface, and the two metal brackets are connected to each other. A medium is connected to the support, and a radiation arm is installed inside the medium and on a side away from the ring structure, and a chip is installed on the radiation arm.
本发明中进一步的，两个所述金属支架沿环形结构的中轴对称分布。Further in the present invention, the two metal brackets are distributed symmetrically along the central axis of the ring structure.
本发明中进一步的，两个所述金属支架与环形结构为一体式结构设置。Further in the present invention, the two metal brackets and the ring structure are provided as an integral structure.
本发明中进一步的，所述介质的材料为FR4，且介质的介电常数为4.4。Further in the present invention, the material of the medium is FR4, and the dielectric constant of the medium is 4.4.
本发明中进一步的，所述辐射臂作弯折处理。Further in the present invention, the radiation arm is bent.
与现有技术相比，本发明的有益效果是：Compared with the prior art, the beneficial effects of the present invention are:
1、本发明利用金属支架和辐射臂形成耦合电感，从而使天线和芯片间能够实现较好的阻抗匹配，以达到提高功率传输系数的目的，一方面可以提高结构的物理强度，另一方面可以提高标签的性能。1. The present invention utilizes the metal bracket and the radiation arm to form a coupling inductance, so that better impedance matching can be achieved between the antenna and the chip, so as to achieve the purpose of improving the power transmission coefficient. On the one hand, the physical strength of the structure can be improved, and on the other hand, it can be Improve label performance.
2、本发明金属支架沿环形结构的中轴对称分布，且两个金属支架与环形结构为一体式结构设置，使环形结构能够适应安装的需求，并且具有一定的负重能力，同时使金属支架也具有一定的承重能力，增强结构的抗压能力。2. The metal brackets of the present invention are distributed symmetrically along the central axis of the ring structure, and the two metal brackets are integrated with the ring structure, so that the ring structure can meet the needs of installation, and has a certain load-bearing capacity. It has a certain load-bearing capacity and enhances the compressive capacity of the structure.
3、本发明辐射臂通过一定的弯折处理，能够实现辐射臂的小型化，减小铁路检测标签天线的体积。3. The radiation arm of the present invention can realize the miniaturization of the radiation arm and reduce the volume of the railway detection tag antenna through a certain bending process.
附图说明Description of drawings
图1为本发明整体的立体结构示意图；Fig. 1 is a schematic diagram of the overall three-dimensional structure of the present invention;
图2为本发明局部剖视的立体结构示意图；Fig. 2 is the three-dimensional structure schematic diagram of partial section of the present invention;
图中：1、环形结构；2、金属支架；3、介质；4、辐射臂；5、芯片。In the figure: 1. ring structure; 2. metal support; 3. medium; 4. radiation arm; 5. chip.
具体实施方式Detailed ways
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.
请参阅图1-2，本发明提供以下技术方案：一种提高功率传输系数的铁路检测标签天线，包括环形结构1，环形结构1远离弧形面的一端连接有两个金属支架2，两个金属支架2上连接有介质3，介质3的内部且位于远离环形结构1的一侧装配有辐射臂4，辐射臂4上装配有芯片5。Please refer to Fig. 1-2, the present invention provides the following technical scheme: a kind of railway detection label antenna that improves power transmission coefficient, comprises
具体的，两个金属支架2沿环形结构1的中轴对称分布。Specifically, two
具体的，两个金属支架2与环形结构1为一体式结构设置。Specifically, the two
具体的，介质3的材料为FR4，且介质3的介电常数为4.4。Specifically, the material of the
具体的，辐射臂4作弯折处理。Specifically, the
本发明的工作原理及使用流程：两个金属支架2沿环形结构1的中轴对称分布，且两个金属支架2与环形结构1为一体式结构设置，使环形结构1能够适应安装的需求，并且具有一定的负重能力，同时使金属支架2也具有一定的承重能力，增强结构的抗压能力；The working principle and application process of the present invention: two
辐射臂4作一定的弯折处理，装配在介质3远离环形结构1一侧的内部，弯折处理的辐射臂4能够实现小型化，减小铁路检测标签天线的体积；The
铁路检测标签天线利用金属支架2和辐射臂4形成耦合电感，从而使天线和芯片5实现较好的阻抗匹配，能够提高功率传输系数。The railway detection tag antenna utilizes the
尽管已经示出和描述了本发明的实施例，对于本领域的普通技术人员而言，可以理解在不脱离本发明的原理和精神的情况下可以对这些实施例进行多种变化、修改、替换和变型，本发明的范围由所附权利要求及其等同物限定。Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, and substitutions can be made in these embodiments without departing from the principle and spirit of the invention and modifications, the scope of the invention is defined by the appended claims and their equivalents.
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| CN111478018A (en) * | 2020-04-15 | 2020-07-31 | 合肥工业大学 | A radio frequency identification tag antenna applied in dense environment |
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| KR101330363B1 (en) * | 2010-09-17 | 2013-11-15 | 한국전자통신연구원 | Directional rfid label tag for measuring postal matter delivery service |
| CN104993234B (en) * | 2015-07-20 | 2019-05-21 | 陕西烽火电子股份有限公司 | A kind of electronic label antenna and electronic mark board |
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| CN106099327A (en) * | 2016-06-28 | 2016-11-09 | 惠州硕贝德无线科技股份有限公司 | Near field antenna device and equipment thereof |
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