Unlock instant, AI-driven research and patent intelligence for your innovation.

Multi-feed UHF RFID tag antenna

An RFID tag and UHF technology, which is applied in the field of multi-feed UHF RFID tag antennas, can solve the problems that a single-feed RFID antenna cannot satisfy users, and a single-feed RFID antenna cannot work normally.

Active Publication Date: 2021-04-20
FU TAI HUA IND SHENZHEN +1
View PDF10 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Existing UHF RFID antennas usually only include one feed point. When the tag chip fails, the single-feed RFID antenna cannot work normally; or when the tag antenna needs to support multiple standard frequency bands, the single-feed RFID antenna Unable to meet user needs

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Multi-feed UHF RFID tag antenna
  • Multi-feed UHF RFID tag antenna
  • Multi-feed UHF RFID tag antenna

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0014] Please refer to figure 1 , which shows the multi-feed UHF RFID tag antenna 1 in the first embodiment of the present invention. Please also refer to figure 2 , the tag antenna 1 includes an antenna structure 10 , a substrate 20 and a ground plane 30 . In this embodiment, the antenna structure 10 is located above the substrate 20 , the substrate 20 is located above the ground plane 30 , and the antenna structure 10 is also communicated with the ground plane 30 .

[0015] Such as figure 1 and figure 2 As shown, the antenna structure 10 includes a radiation unit 101, a first microstrip line 102, a second microstrip line 103, a third microstrip line 104, a fourth microstrip line 105, a first label chip 106 and a second label chip 107. Wherein, the first label chip 106 is connected between the first microstrip line 102 and the second microstrip line 103, and the second label chip 107 is connected to the third microstrip line 104 and the fourth microstrip line 105, thu...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The present invention provides a multi-feed UHF RFID tag antenna, the tag antenna includes an antenna structure, a substrate and a ground plane, the substrate is located above the ground plane, the antenna structure communicates with the ground plane, the antenna The structure includes a radiation unit, a plurality of microstrip lines and a plurality of label chips, wherein a label chip is connected between every two microstrip lines, thereby forming a microstrip feeding circuit. The invention includes a plurality of tag chips. When the tag chips are the same and one of the tag chips fails, the RFID tag antenna can still work normally, ensuring that the tag using the tag antenna can be normally identified. When the tag antenna has different working frequency bands, the tag using the tag antenna can be identified in different countries or regions.

Description

technical field [0001] The invention relates to the field of antennas, in particular to a multi-feed UHF RFID tag antenna. Background technique [0002] RFID (Radio Frequency Identification, Radio Frequency Identification) is a technology that conducts non-contact two-way data communication through radio frequency to identify targets. RFID systems usually consist of readers and electronic tags. The electronic tag includes an antenna and a tag chip, which transmits or receives electromagnetic waves through the antenna to exchange data with the reader, thereby realizing the identification of the electronic tag. Existing UHF RFID antennas usually only include one feed point. When the tag chip fails, the single-feed RFID antenna cannot work normally; or when the tag antenna needs to support multiple standard frequency bands, the single-feed RFID antenna Can not meet the needs of users. Contents of the invention [0003] In view of this, it is necessary to provide a multi-fe...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): H01Q1/22H01Q1/36H01Q1/38H01Q1/52G06K19/077
CPCG06K19/07786H01Q1/2225H01Q1/36H01Q1/38H01Q1/52G06K19/07754G06K19/0724G06K19/07773
Inventor 曹渝鋐谢阜谚
Owner FU TAI HUA IND SHENZHEN