An RFID reader/writer antenna and a method for using the same

A reader and antenna technology, which is applied in the direction of antenna, antenna array, antenna grounding switch structure connection, etc., can solve the problems of antenna-to-reader matching difficulty, signal-to-noise ratio reduction, and inability to read label magnetic flux holes, etc., to achieve structural Simple, wide-bandwidth, compact effect

Pending Publication Date: 2018-12-21
福州福大信捷天线技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] There are great challenges and difficulties in the design of the reader antenna
When the size of the antenna increases to a certain extent, the following problems will occur: (1) the signal-to-noise ratio decreases; (2) the magnetic flux hole that cannot read the tag appears; (3) the matching of the antenna to the reader becomes difficult

Method used

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  • An RFID reader/writer antenna and a method for using the same
  • An RFID reader/writer antenna and a method for using the same
  • An RFID reader/writer antenna and a method for using the same

Examples

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Embodiment Construction

[0030] Such as Figure 1-7 Shown, a kind of RFID reader-writer antenna, described reader-writer antenna comprises the PIFA antenna array 10 supported with PCB board 130; Described PIFA antenna array is polygonal ring shape; Each side of polygonal ring is PIFA antenna unit 11; The PCB board in the middle of the polygonal ring is provided with a multi-point feed network 12; the input port 122 of the multi-point feed network is connected to each PIFA antenna unit, and the output port 120 of the multi-point feed network is connected to the radio frequency connection line 13.

[0031] The PIFA antenna array is in the shape of a rectangular ring when viewed from above, and the four sides of the rectangular ring are four PIFA antenna units.

[0032] The PIFA antenna unit includes a vibrator feed arm 111, a vibrator short-circuit wall 112, and a long and narrow vibrator radiator plate; one end of the vibrator radiator plate is supported on the PCB by the vibrator feed arm and the vibr...

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Abstract

The invention provides an RFID reader / writer antenna. The reader / writer antenna comprises a PIFA antenna array supported by a PCB. The PIFA antenna array is in a polygonal ring shape; Each side of thepolygon ring is a PIFA antenna element; A multi-point feeding network is arranged at the PCB in the middle of the polygon ring. The input port of the multi-point feeding network is connected with each PIFA antenna unit, and the output port of the multi-point feeding network is connected with a radio frequency connection line. The antenna adopted by the invention is low in cost and wide in near-field radiation range, and the antenna body is small, so that the antenna body is easy to be installed and used.

Description

technical field [0001] The invention relates to the technical field of antennas, in particular to an RFID reader-writer antenna and a method for using the same. Background technique [0002] RFID (Radio Frequency Identification), that is, radio frequency identification technology, is a non-contact automatic identification technology. RFID technology embeds microchips into products, and the microchips will automatically send information such as the serial number of the product to the scanner, and this process does not require manual scanning like barcode technology, and can work in various harsh environments. RFID technology can identify high-speed moving objects and can identify multiple tags at the same time, and the operation is fast and convenient. With the continuous development of technical theory, RFID has a wide range of applications in identification, transportation, material tracking and other fields. [0003] In radio frequency identification technology, the non-...

Claims

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Application Information

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IPC IPC(8): H01Q1/36H01Q1/38H01Q1/50H01Q21/00H01Q23/00
CPCH01Q1/36H01Q1/38H01Q1/50H01Q21/00H01Q23/00
Inventor 赖泽恒杨华炜杨晓杰陈侃
Owner 福州福大信捷天线技术有限公司
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