Bridging electric tuning antenna of RFID reader-writer

An electrical tuning, reader-writer technology, applied to record carriers, instruments, electromagnetic radiation induction and other directions used by machines, can solve the problems of deterioration of various indicators, limited antenna installation space and location, etc., to achieve flexible size and optimized antennas The effect of low performance and low power consumption

Pending Publication Date: 2020-04-28
GUANGDONG SYGOLE INTELLIGENT TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in an industrial environment, all structural parts are made of metal, and the installation space and location of the antenna are limited, which seriously deteriorates the indicators

Method used

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  • Bridging electric tuning antenna of RFID reader-writer
  • Bridging electric tuning antenna of RFID reader-writer
  • Bridging electric tuning antenna of RFID reader-writer

Examples

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Effect test

Embodiment Construction

[0023] The present invention is further described in conjunction with the following examples.

[0024] Depend on Figure 1 to Figure 4 It can be seen that the bridging electric tuning antenna of a kind of RFID reader-writer described in the present embodiment includes an antenna housing 1 and a coupling antenna 2; the antenna housing 1 is provided with a radiation antenna and a power splitter 3; the coupling The antenna 2 is connected to the input end of the power divider 3; an output end of the power divider 3 is connected to the radiation antenna; the coupling antenna 2 is used for coupling with the RFID reader antenna 6; wherein, it is not drawn in the figure radiating antenna;

[0025] The antenna housing 1 is provided with a wireless energy collection unit 4, a control unit and a tuning unit 5; the other output end of the power splitter 3 is connected to the input end of the wireless energy collection unit 4; the wireless energy collection unit The output end of 4 is us...

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PUM

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Abstract

The invention relates to the technical field of electronic communication, in particular to a bridging electric tuning antenna of an RFID reader-writer, which comprises an antenna shell and a coupled antenna, wherein a radiation antenna and a power divider are arranged in the antenna shell; one output end of the power divider is connected with the radiation antenna; wherein a wireless energy collection unit, a control unit and a tuning unit are arranged in the antenna shell; the other output end of the power divider is connected with the input end of the wireless energy collection unit; the output end of the wireless energy collection unit is used for supplying power to the control unit; the control unit is used for generating a triangular wave signal to the tuning unit; and the tuning unitis connected with the radiation antenna. According to the invention, the matching circuit can be automatically tuned according to the deterioration degree of the antenna performance, the antenna performance is optimized, and the read-write distance of the whole RFID reader-writer is increased; electromagnetic wave signals are collected and converted to supply power to the bridging electric tuningantenna, and extra external power supply is not needed.

Description

technical field [0001] The invention relates to the technical field of electronic communication, in particular to a bridging electric tuning antenna of an RFID reader-writer. Background technique [0002] The UHF RFID reader antenna belongs to the area type microstrip antenna, the antenna bandwidth is 1%, the mainstream gain is 2-8dBi, the FCC frequency range is 902~928MHz, and the standing wave is <1.4. Limited by the size and area of ​​the ground plane, the antenna Once shipped, these indicators cannot be changed. [0003] As an electromagnetic wave radiation unit, the RFID reader antenna is sensitive to the metal environment and requires a clear space in the radiation field. However, in an industrial environment, all structural parts are made of metal, and the installation space and location of the antenna are limited, which seriously deteriorates various indicators. Contents of the invention [0004] The object of the present invention is to provide a bridging ele...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K7/10G06K17/00G06K19/07G06K19/077
CPCG06K7/10316G06K17/0029G06K19/0708G06K19/0715G06K19/07773
Inventor 任晓波孙虎谢政赵朝源曾鸣李水苗
Owner GUANGDONG SYGOLE INTELLIGENT TECH CO LTD
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