WO2016141601A1 - Rfid radio-frequency antenna applied to clothing label and book - Google Patents

Abstract

Disclosed is an RFID radio-frequency antenna applied to a clothing label and a book. The RFID radio-frequency antenna is characterized in that: a resonant cavity wire is encircled to form a rectangular resonant cavity, a notch-shaped chip binding position is formed in the middle of one long side of the resonant cavity, two radio-frequency antenna fins extend from the other long side of the resonant cavity, the radio-frequency antenna fins extend towards the two sides to form S-shaped extension portions, the initial end of each S-shaped extension portion is 1.5 millimeters in width while the end is 2.75 millimeters in width, and each of the left and right S-shaped extension portions is 45 millimeters in length and 24 millimeters in width. The present utility model has a very high read sensitivity, compared with a traditional radio-frequency antenna with the same area, the read distance is longer, and batches of radio-frequency label chip information can be read more easily in one time; a punching model for a punching antenna is convenient to be manufactured, and the radio-frequency antenna can be manufactured by using a punching technology; the present utility model has low manufacturing cost, is pollution-free, and is convenient for large-area popularization.

Description

RFID radio frequency antenna applied to clothing tag and book Technical field

The utility model relates to an RFID radio frequency antenna applied to a clothing tag and a book.

Background technique

The traditional RFID radio frequency clothing tag or the RFID radio frequency card used in books and magazines has a small size, which results in low reading and writing sensitivity of the radio frequency tag, making the tag reading distance relatively close, and it is difficult to read more radio frequency tag at one time. It has lengthened the time spent on clothing warehousing or library collection and statistics, which has affected the efficiency of the statistics of the whole reservoir.

Utility model 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 a clothing tag and a book, an RFID radio frequency tag manufactured according to the shape structure feature of the utility model, and the radio frequency chip absorbs more electromagnetic waves and radio frequency. The reading sensitivity is high, and the reading distance of the RF antenna is the same as that of the conventional same area, and it is easier to read the batch of RF tag chip information at a time.

The technical scheme of the utility model is as follows:

An RFID radio frequency antenna applied to a clothing tag and a book, 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 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 an extension of an "S" shape, and the initial end of the "S" type extension portion The width is 1.5 mm and the end width is 2.75 mm. The "S"-shaped extensions on the left and right sides have a length of 45 mm and a width of 24 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 24*45 mm, according to the structural features of the utility model, the radio frequency chip can absorb more electromagnetic waves, and the radio frequency reading sensitivity Very high, farther than the traditional RF antenna antenna of the same area, it is easier to read the batch of RF tag chip information at a time. The line width of the RF antenna pattern of the utility model is 2.75 mm, which is convenient for punching the system. The model adopts the punching process to make the RF antenna, which has low production cost and no pollution, and is convenient for large-area promotion.

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: 1, the resonant cavity line; 2, the resonant cavity; 3, the chip binding bit; 4, the RF antenna wing.

detailed description

As shown in FIG. 1 and FIG. 2, the utility model is composed of a resonant cavity line 1 and a rectangular resonant cavity 2 is formed. A middle portion of the long side of the resonant cavity 2 is provided with a chip-shaped binding position 3, and the resonant cavity 2 is provided. The other long side extends two radio frequency antenna fins 4, and the radio frequency antenna fins 4 extend to both sides and form an "S" type extension portion, and the "S" type extension portion has an initial end width L1 of 1.5. Millimeter, the end width L2 is 2.75 mm, the left and right sides The "S" type extension has a length L3 of 45 mm and a width L4 of 24 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 RF antenna, and it is easier to read the batch of RF tag chip information at a time. The utility model is convenient for the die cutting model of the system punching antenna, and adopts the punching process to manufacture the radio frequency. The antenna has low production cost and no pollution, and is convenient for large-scale promotion.

Claims (1)

1. An RFID radio frequency antenna applied to a clothing tag and a book, 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 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 an extension of an "S" shape, and the initial end of the "S" type extension portion The width is 1.5 mm and the end width is 2.75 mm. The "S"-shaped extensions on the left and right sides have a length of 45 mm and a width of 24 mm.

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