TWM457931U - Radio frequency identification tag structure with single antenna and multiple chips - Google Patents

Description

Radio frequency identification tag structure with single antenna multiple chip

This creation is related to the structure of the RFID tag, especially the RFID tag structure with a single antenna and multiple chips.

Radio Frequency Identification (RFID) is a communication technology, which is mainly composed of wireless information processing technology, readers, and RFID tags. The RFID tags refer to the chip and coil loop antenna. The components are configured to read or write data from outside without contact communication, and the reader can retrieve and identify the information of the RFID tag to provide the application system to the back end. For further processing, use or value-added applications, the RFID system can be applied in a wide range of applications, such as general access control, car chip immobilizers, and the like.

However, the RFID tag structure comprises a single wafer, and a single coiled loop antenna designed according to different frequencies or application materials, and the chip on each RFID tag has a unique identification code (EPC), so a single RFID tags can only be used as a single use. As mentioned above, a single RFID tag can only be used as a control for access control or a car chip anti-theft device. It is not possible to use a single RFID tag for two or more purposes. insufficient.

Therefore, how to develop an RFID tag structure, which can solve the aforementioned drawbacks, is the motive for the creation of the case.

The purpose of this creation is to provide a radio frequency identification tag structure having a single antenna multi-chip, and a single RFID tag can be used for two or more different purposes to enhance the applicability of the RFID tag.

Therefore, in order to achieve the foregoing objective, a radio frequency identification tag structure having a single antenna multi-chip according to the present invention includes: a body; a coiled loop antenna disposed in the body and having a first conductive end And a second conductive end portion; at least two wafers are fixed in the body, and are electrically connected in parallel to the antenna, each of the wafers having a first pin electrically connected to the first conductive end portion, A second pin electrically connected to the second conductive end, and an identification code, and each of the identification codes is different.

Preferably, the number of wafers is two.

Preferably, the number of wafers is three.

Preferably, the number of wafers is four.

For the purpose of achieving the above objectives, the techniques, means, and other effects of the present invention are set forth in the accompanying drawings.

Referring to FIG. 1 , a radio frequency identification tag structure with a single antenna multi-chip is provided by a body 10 , an antenna 20 , a first chip 30 , and a second chip 40 . The composition is as follows: the body 10 is a rectangular sheet.

The coiled loop antenna 20 is disposed in the body 10 and has a first The conductive end portion 21 and the second conductive end portion 22; wherein the antenna 20 changes its winding configuration according to different frequencies or application materials.

The first chip 30 is fixed in the body 10 and electrically connected to the antenna 20. The first chip 30 has a first left pin 31 electrically connected to the first conductive end portion 21, and an electric The first right pin 32 of the second conductive end 22 is connected to the first identification pin.

The second wafer 40 is fixed in the body 10 and electrically connected to the antenna 20 in parallel with the first wafer 30. The second wafer 40 has a first electrically conductive end 21 a second left pin 41, a second right pin 42 electrically connected to the second conductive end portion 22, and a second identification code, and the second identification code is different from the first identification code.

The above description is the structure of the main components of the first embodiment of the creation and the configuration description thereof.

Accordingly, the first wafer 30 and the second wafer 40 are arranged in parallel on the body 10, and the first identification code of the first wafer 30 and the second identification of the second wafer 40 are provided. The codes are different. Therefore, the single RFID tag of the present invention can be used for two different readers to interpret the application, so as to be applicable to two purposes, and the purpose of improving the applicability of the RFID tag is achieved.

For example, the first wafer 30 is used as a control for the access control, and the second wafer 40 is used as a car chip anti-theft device. When the user takes the RFID tag into and out of the door, the reader located at the door uses the relevant search. a technique or agreement that recognizes the first identification code and generates a corresponding action with the first wafer 30. The reader provided in the door does not have a corresponding action with the second wafer 40; when the user takes the same RFID tag to start the car, the reader located in the car also utilizes relevant search technology or Agreement, recognizing the second identification code, and generating an action corresponding to the second wafer 40. Similarly, the reader provided in the vehicle does not generate a corresponding action with the first wafer 30; After the description of the first embodiment, the creation is indeed applicable to two purposes, and the purpose of improving the applicability of the RFID tag is achieved.

Referring to FIG. 2, a radio frequency identification tag structure having a single antenna multi-chip is provided by a second embodiment of the present invention, which is also composed of a body 10, an antenna 20, a first chip 30, and a second The composition of the wafer 40 is the same as that of the first embodiment, and therefore is not described in detail. The second embodiment is different in that the number of the wafers is three, that is, a third wafer 50 is added. The third wafer 50 is electrically connected to the antenna 20 and is electrically connected to the first and second wafers 30 and 40. The third wafer 50 is electrically connected to the first conductive end portion 21 . a third left pin 51, a third right pin 52 electrically connected to the second conductive end portion 22, and a third identification code, and the third identification code is different from the first and second identification codes. In order to achieve another implementation state, the RFID tag has better applicability.

Referring to FIG. 3, a radio frequency identification tag structure having a single antenna multi-chip is provided by a third embodiment of the present invention, which is also composed of a body 10, an antenna 20, a first chip 30, and a second chip. 40, and a third wafer 50 The composition is the same as the second embodiment, and therefore is not described in detail. The third embodiment is different in that the number of the wafers is four, that is, a fourth wafer 60 is added, and the fourth wafer is added. The semiconductor chip 20 is fixed in the body 10 and electrically connected to the antenna 20 in parallel with the first, second and third wafers 30, 40, 50. The fourth wafer 60 has an electrical connection to the first conductive end. a fourth left pin 61 of the portion 21, a fourth right pin 62 electrically connected to the second conductive end portion 22, and a fourth identification code, and the fourth identification code and the first, second, and third identification codes The codes are different, so as to achieve another implementation state, the RFID tag has better applicability.

In summary, the above embodiments and illustrations are only preferred embodiments of the present invention, and the scope of the present invention cannot be limited thereto, that is, the equal changes and modifications made by the applicant in accordance with the scope of the patent application for the present invention are all It should be within the scope of this creation patent.

10‧‧‧ Ontology

20‧‧‧Antenna

21‧‧‧First conductive end

22‧‧‧Second conductive end

30‧‧‧First chip

31‧‧‧First left pin

32‧‧‧First right foot

40‧‧‧second chip

41‧‧‧Second left pin

42‧‧‧Second right pin

50‧‧‧ Third chip

51‧‧‧ Third left pin

52‧‧‧ third right foot

60‧‧‧fourth wafer

61‧‧‧fourth left pin

62‧‧‧fourth right pin

Fig. 1 is a schematic view showing the first embodiment of the present creation.

Figure 2 is a schematic view of a second embodiment of the present creation.

Figure 3 is a schematic view of a third embodiment of the present creation.

10‧‧‧ Ontology

20‧‧‧Antenna

21‧‧‧First conductive end

22‧‧‧Second conductive end

30‧‧‧First chip

31‧‧‧First left pin

32‧‧‧First right foot

40‧‧‧second chip

41‧‧‧Second left pin

42‧‧‧Second right pin

Claims (4)

An RFID tag structure having a single antenna and a plurality of chips, comprising: a body; a coiled loop antenna disposed in the body and having a first conductive end and a second conductive end; at least two wafers, fixed In the body, and electrically connected to the antenna in parallel, each of the wafers has a first pin electrically connected to the first conductive end, and a second connection electrically connected to the second conductive end A foot, and an identification code, and each of the identification codes is different. A radio frequency identification tag structure having a single antenna complex wafer as described in claim 1 wherein the number of the wafers is two. A radio frequency identification tag structure having a single antenna complex wafer as described in claim 1 wherein the number of the wafers is three. A radio frequency identification tag structure having a single antenna complex wafer as described in claim 1 wherein the number of the wafers is four.