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Circularly polarized array antenna for RFID (Radio Frequency Identification) vehicle management field

A vehicle management and array antenna technology, applied in the field of wireless communication, can solve the problems of single polarization mode of RFID antenna, troublesome management, and the reader antenna cannot read the vehicle's electronic license plate, etc.

Inactive Publication Date: 2010-08-18
THE THIRD RES INST OF MIN OF PUBLIC SECURITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In the RFID vehicle system, the electronic tag is the RFID car electronic license plate, which records various information of the vehicle, which is equivalent to the ID card of the vehicle. Currently, the RFID antenna used for vehicle management has a single polarization mode. The polarization mismatch between the reader antenna and the electronic license plate may cause the reader antenna to fail to read the vehicle's electronic license plate, causing great trouble to management

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  • Circularly polarized array antenna for RFID (Radio Frequency Identification) vehicle management field
  • Circularly polarized array antenna for RFID (Radio Frequency Identification) vehicle management field
  • Circularly polarized array antenna for RFID (Radio Frequency Identification) vehicle management field

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Embodiment Construction

[0012] The implementation of the present invention will be described in detail below in conjunction with the accompanying drawings: this implementation is implemented under the premise of the technical solution of the present invention, and detailed implementation has been provided, but the protection scope of the present invention is not limited to the following examples.

[0013] like figure 1 As shown, this embodiment includes: a radiating element 1 , an air dielectric layer 2 , a feeding microstrip 3 , a metal ground plate 4 , a shorting pin 5 , a radiating element feeding pin 6 and a coaxial feeding terminal 7 . The connection method is as follows: the radiation element 1 is composed of four metal units in an array structure, there are four short-circuit pins 5, and the two ends of the four short-circuit pins are respectively connected to the ground plate and the four metal units. There are four feed pins 6 of the radiating unit, both ends of which are respectively connec...

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Abstract

The invention belongs to the field of wireless communication, and relates to a circularly polarized array antenna for the RFID (Radio Frequency Identification) vehicle management field. When RFID is applied to identifying and managing running vehicles, requiring that the polarization matching of an RFID reader antenna and a RFID electronic license plate of a vehicle is good on the one hand, and the RFID reader antenna should have higher plus on the other hand so that effective and identifiable management can be realized for vehicles with the RFID electronic license plates. An antenna is used as receiving and transmitting terminal equipment of an RFID reader, thereby the performance indexes of the antenna are dominant factors for influencing the RFID reading-writing performance. Therefore, the circularly polarized array antenna for the RFID vehicle management is designed in the invention, and the purpose of effectively managing the vehicles with the RFID electronic license plates can be achieved by using the RFID.

Description

technical field [0001] The invention belongs to the field of wireless communication, in particular to a circularly polarized array antenna used in the field of RFID vehicle management Background technique [0002] The Chinese name of Radio Frequency Identification (RFID) is radio frequency identification technology. The radio frequency identification reader processes a large amount of relevant information carried by the tags on the identified objects through the communication base station, and establishes a database in the control background in the form of network transmission to realize the "information resource socialization" management function of the items. Since the radio frequency identification (RFID) technology laid its theoretical foundation in 1948, its original basic theory and basic technology have been very mature. However, with the popularization of Internet technology in recent years, logistics, commerce, transportation, military logistics, etc. Only in the f...

Claims

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Application Information

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IPC IPC(8): H01Q21/24H01Q13/08G06K19/10
Inventor 何蔚黄银龙
Owner THE THIRD RES INST OF MIN OF PUBLIC SECURITY
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