WO2018028193A1

WO2018028193A1 - Rfid radio frequency antenna applied to luggage classification management

Info

Publication number: WO2018028193A1
Application number: PCT/CN2017/076234
Authority: WO
Inventors: 田艺儿
Original assignee: 田艺儿
Priority date: 2016-08-11
Filing date: 2017-03-10
Publication date: 2018-02-15
Also published as: CN206098684U

Abstract

Disclosed is an RFID radio frequency antenna applied to luggage classification management, comprising a radio frequency antenna body, characterized in that a rectangular resonant cavity is formed by means of the surrounding of resonant cavity lines; a notch-shaped chip binding position is provided at a middle portion of a long side of the resonant cavity; the chip binding position is used for arranging a radio frequency chip; two radio frequency antenna fins extend from the other long side of the resonant cavity; and the radio frequency antenna fins extend towards both sides and constitute a "U"-shaped extension portion, wherein the left and right "U"-shaped extension portions are symmetrically arranged on both sides of the rectangular resonant cavity, and the width of the initial end of the "U"-shaped extension portion is 1.6 millimeters, and the width of the tail end thereof is 2.85 millimeters. In the utility model, the radio frequency chip can absorb more electromagnetic waves at the periphery, the radio frequency reading sensitivity is very high, the reading distance is farther than that of a traditional radio frequency antenna, and mass radio frequency identification plate chip information is more easily read once.

Description

RFID radio frequency antenna applied to luggage classification management

[Technical Field]

The utility model relates to an RFID radio frequency antenna applied to the classification management of a luggage box.

【Background technique】

In airports, railway stations, bus stations and other places where different suitcases need to be sorted, manual sorting is generally used. Even the sorting that relies on radio frequency identification (RFID) technology in recent years is small-scale, and its sorting and identification functions are relatively backward. The reason is that the size of traditional RFID RF cards is small, resulting in reading of RF cards. The writing sensitivity is low, so that the reading distance of the RF card is relatively close, and it is difficult to read more RF cards at one time, which increases the difficulty of identifying and sorting all the luggage boxes, resulting in inefficiency and even incorrect sorting. , affecting the promotion and application of radio frequency identification technology.

[utility content]

The technical problem to be solved by the utility model is to overcome the above drawbacks and provide an RFID radio frequency antenna applied to the classification management of the luggage box. According to the shape and structure feature of the utility model, the RFID radio frequency identification card can absorb more electromagnetic waves. The RF reading sensitivity is high, and the reading distance of the conventional RF antenna is far, and it is easier to read the batch of RFID chip information at a time.

The technical scheme of the utility model is as follows:

An RFID radio frequency antenna for use in trunk classification management, comprising a radio frequency antenna body, wherein a resonant cavity line surrounds a rectangular resonant cavity, and a middle side of the long side of the resonant cavity is provided with a chip-shaped chip bond Position, the chip binding bit is used to set a radio frequency chip, and the other long side of the resonant cavity extends two radio frequency antenna fins, and the radio frequency antenna fin extends to both sides and has a "U" shape Forming an extension, the left and right "U"-shaped extensions are symmetrically disposed on both sides of the rectangular resonator, and the "U"-shaped extension has an initial end width of 1.6 mm and a tip width of 2.85 mm. The "U" shaped extensions on the left and right sides have a total length of 48 mm and a width of 26.5 mm.

According to the above technical features, the utility model has the advantages that the size of the radio frequency antenna is small, although only 26.5*48 mm, according to the structural features of the utility model, the radio frequency chip can absorb more electromagnetic waves in the periphery, and the radio frequency is read. The sensitivity is very high, and the reading distance is farther than the traditional RF antenna. It is easier to read the batch of RFID chip information at a time, the recognition sensitivity is high, and the error rate is low. The line width of the radio frequency antenna pattern of the utility model is 2.85 mm, which is convenient. The die-cutting model of the system punching antenna adopts the punching process to make the RF antenna, which has low production cost and no pollution, and is convenient for large-area promotion.

[Description of the Drawings]

Figure 1 is a schematic view of the structure of the present invention.

2 is a schematic diagram of the technical parameters of the utility model of FIG.

FIG. 3 is a comparison diagram of the reading distance between the utility model and the similar products in the market under different reading and writing powers.

Figure 4 is a comparison diagram of the reading direction characteristics of the utility model and similar products in the market under 20DB read/write power.

In the figure: 11, resonant cavity line; 12, resonant cavity; 13, chip binding bit; 14, RF antenna wing.

【detailed description】

As shown in FIG. 1 and FIG. 2, the utility model relates to an RFID radio frequency antenna for the classification and management of a trunk, which comprises a radio frequency antenna body, which is characterized in that a rectangular cavity 12 is formed by a resonant cavity line 11, and the resonant cavity 12 is The middle portion of the long side is provided with a chip-shaped bit 13 of a notch shape, and the chip is tied The positioning 13 is used for setting a radio frequency chip, and the other long side of the resonant cavity 12 extends two radio frequency antenna fins 14 , and the radio frequency antenna fins extend to both sides and form a U-shaped extension portion. Two "U"-shaped extensions are symmetrically disposed on both sides of the rectangular resonator 12. The "U"-shaped extension has a width of 1.6 mm at the initial end L1 and a width of 2.85 mm at the end L2. The "U" shaped extension has a total length L3 of 48 mm and a width L4 of 26.5 mm.

As shown in Figure 3 and the table below, the comparison of the reading distance between the utility model and the similar products in the market under different reading and writing powers:

As shown in Figure 4 and the table below, in order to compare the read direction characteristics of the utility model with the market similar products under the 20DB read/write power:

The above data shows that the utility model has a farther reading distance than the conventional radio frequency antenna, and it is easier to read the batch of radio frequency identification card chip information at one time. The utility model is convenient for the punching model of the system punching antenna, and adopts the punching process to manufacture The RF antenna has low production cost and no pollution, which is convenient for large-scale promotion.

Claims

An RFID radio frequency antenna for use in trunk classification management, comprising a radio frequency antenna body, wherein a resonant cavity line surrounds a rectangular resonant cavity, and a middle side of the long side of the resonant cavity is provided with a chip-shaped chip bond Position, the chip binding bit is used to set a radio frequency chip, and the other long side of the resonant cavity extends two radio frequency antenna fins, and the radio frequency antenna fin extends to both sides and forms a U-shaped extension. The left and right "U"-shaped extensions are symmetrically disposed on both sides of the rectangular cavity, and the "U"-shaped extension has an initial end width of 1.6 mm and a tip width of 2.85 mm. The "U" shaped extensions on both sides have a total length of 48 mm and a width of 26.5 mm.