WO2010025615A1

WO2010025615A1 - Antenna module of wireless radio frequency identification tag

Info

Publication number: WO2010025615A1
Application number: PCT/CN2009/000867
Authority: WO
Inventors: 方建兴; 曹培英
Original assignee: 速码波科技股份有限公司
Priority date: 2008-09-03
Filing date: 2009-08-03
Publication date: 2010-03-11
Also published as: CN101667677A

Abstract

An antenna module of a wireless radio frequency identification (RFID) tag is disclosed, which includes an antenna, the first base board and a flexible flat cable. The antenna includes a coil, a plurality of positive electrodes and a plurality of negative electrodes. The positive electrodes and the negative electrodes are set on the coil, and are correspondingly and electrically connected with plurality of the first electrode contacts and plurality of the second electrode contacts on the first base board. One end of the flexible flat cable is electrically connected with the first base board, and the other end is electrically connected with a user identification module. The design of connecting at least one of the positive electrodes with the first electrode contacts, and connecting at least one of the negative electrodes with the second electrode contacts enables the antenna of the RFID tag to be commonly used in various mobile communication devices.

Description

Antenna module for radio frequency identification tag technology

The present invention relates to an antenna module for a radio frequency identification (RFID) tag, and more particularly to an antenna module for a radio frequency identification tag of a subscriber identity module (SIM). Background technique

Radio Frequency Identification (RFID) is a chip with built-in radio technology. The chip can also record a series of information, such as product, location, date, etc. The biggest advantage is to improve the efficiency of item management. It is recorded on the barcode, and the scanner scans the barcode to obtain the information. The RFID only needs to be sensed within a certain range, and can read a large amount of information at one time.

RFID technology can be applied to access control, joint ticket, transportation, etc.

The RFID system consists mainly of a tag, a reader, and a host computer. The volume label is the storage component of the data, and the reader is the tool for reading data from the volume label or storing the data into the volume label. The reader transfers the read data to the computer system and uses different applications. Interpret the data to help users make quick and correct decisions. The tags can be divided into active (active) and passive (passive). The active tag contains a battery, which can transmit information to the reader at any time, and has a long communication distance, which can store large memory, but the price The passive tag power supply comes from the electromagnetic wave emitted by the reader to generate a micro-current to the tag to supply its power, and then use the wave to transmit its information back to the reader, so the communication distance is short. The advantage of passive tags is that they do not require an external battery and can achieve small size, low price, long life and portability of digital data. The passive tag antenna is built-in to sense and generate radio waves to send and receive data.

Since the mobile phone has become an indispensable tool for mobile communication, it has almost become a man-machine. Therefore, some manufacturers advocate the combination of radio frequency identification (RFID) and mobile phones, using the antenna of the RFID tag and the user identification module (SIM) of the mobile phone to combine the functions of the existing RFID tag to identify the handset. Personal profile.

The RFID tag contains two parts, the antenna and user identification module of the RFID tag. The antenna of the RFID tag includes a coil and an electrical contact electrically connected to the coil. The subscriber identity module is electrically connected to the electrical contact, and electrically connects the antenna of the RFID tag to the subscriber identity module to provide data communication between the subscriber identity module and the RFID reader. However, due to the different designs of various mobile phone manufacturers, the user identification module is placed in the mobile phone.

The location of (SIM) is different. If only a single type of RFID tag antenna is used on various mobile phones, the location of the Subscriber Identity Module (SIM) may not be able to make the electrical contact of the antenna of the RFID tag and the user identification module. It is electrically connected and therefore cannot operate. Therefore, manufacturers can only design RFID tags for a single mobile phone, so that the radio frequency identification (RPID) antenna can be combined with the subscriber identity module (SIM), and cannot be used in various mobile phones. Invention disclosure

The invention provides an antenna module for a radio frequency identification (RFID) tag, and the antenna module for solving the conventional radio frequency identification (RFID) tag is not applicable to various mobile phones.

The invention discloses an antenna module for a radio frequency identification tag, comprising: a coil for wirelessly receiving a first message from a radio frequency identification reader and a wireless backhaul generated by a user identification module. The second information is given to the RFID reader; the plurality of positive electrodes are electrically connected to the coil; and the plurality of negative electrodes are electrically connected to the coil.

The antenna module of the radio frequency identification tag further includes: a bottom plate, wherein the coil, the plurality of positive electrodes, and the plurality of negative electrodes are disposed on the bottom plate.

The plurality of positive electrodes and the plurality of negative electrodes are disposed inside or outside the coil.

The present invention also discloses an antenna module for a radio frequency identification tag, comprising: an antenna having a coil, a plurality of positive electrodes and a plurality of negative electrodes, wherein the plurality of positive electrodes are electrically connected to the plurality of negative electrodes The first substrate has a plurality of first electrode contacts and a plurality of second electrode contacts, at least one of the plurality of first electrode contacts corresponding to and electrically connected to at least one of the plurality of positive or negative electrodes And at least one of the plurality of second electrode contacts corresponding to and electrically connected to at least one of the plurality of negative electrodes or positive electrodes; and a soft row, one end of the flexible row is connected and electrically connected to the first The other end of the flexible row is electrically connected to an external component.

The plurality of positive electrodes and the plurality of negative electrodes are staggered.

The plurality of first electrode contacts and the plurality of second electrode contacts are disposed on one side of the first substrate. The plurality of first electrode contacts and the plurality of second electrode contacts are respectively disposed on the two sides of the first substrate, and each of the corresponding first electrode contacts is electrically connected to each other, and each of the second electrode contacts is electrically connected to each other. Electrically connected to each other.

The antenna module of the radio frequency identification tag includes: a second substrate electrically connected to the soft The other end of the row is used for contacting and electrically connecting a subscriber identity module.

The antenna module of the radio frequency identification tag disclosed in the present invention: t夬 passes through a plurality of positive electrodes and a plurality of negative electrodes on the coil, and a plurality of first electrode contacts and a plurality of second electrode contacts on the first substrate. Having at least one of the plurality of first electrode contacts on the coil corresponding to and electrically connecting at least one of the plurality of positive electrodes, and at least one of the plurality of second electrode contacts corresponding to and electrically connecting at least one of the plurality of negative electrodes to The antenna module of the RFID tag is electrically connected to the subscriber identity module to provide data communication between the subscriber identity module and the RFID reader. The antenna that enables the RFID tag can be commonly used in various mobile communication devices.

The features and implementations of the present invention are described in detail with reference to the preferred embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

1 is a schematic diagram of an antenna of an antenna module of a radio frequency identification (RFID) tag according to the present invention;

2A is a first partial schematic view of an antenna module of a radio frequency identification (RFID) tag in accordance with the present invention;

2B is a second partial schematic view of an antenna module of a radio frequency identification (RFID) tag in accordance with the present invention;

3 is a third partial schematic view of an antenna module of a radio frequency identification (RFID) tag in accordance with the present invention;

4A is a first schematic diagram of an antenna module of a radio frequency identification tag according to the present invention; FIG. 4B is a second schematic diagram of an antenna module of a radio frequency identification tag according to the present invention; FIG. 4C is a diagram of a radio frequency identification tag according to the present invention; FIG. 4D is a fourth schematic diagram of an antenna module of a radio frequency identification tag according to the present invention; FIG. 5 is a first schematic diagram of an antenna module combined with a cell phone according to the radio frequency identification tag of the present invention;

6 is a second schematic diagram of a combination of an antenna module and a mobile phone of a radio frequency identification tag according to the present invention; 7 is a schematic diagram of data communication between an antenna module of a radio frequency identification tag and a radio frequency identification reader in accordance with the present invention.

Among them, the reference mark:

11 coil 12a positive electrode

12b negative electrode 13 bottom plate

14 first substrate 14a side

14b side 15 soft row

16 second substrate 16a hole

16b first metal contact 17a first electrode contact

17b second electrode contact 20 mobile phone body

21 battery 22 battery cover

30 spacers 100 user identification module

101 second metal contact 200 radio frequency identification reader The best way to achieve the present invention

Please refer to Figure 1. 1 is a schematic diagram of an antenna of an antenna module of a Radio Frequency Identification (RPID) tag according to the present invention. A radio frequency identification (RFID) tag antenna module is applied to a subscriber identity module (SIM) 100 to provide data communication between the subscriber identity module 100 and the radio frequency identification reader. An antenna module for a radio frequency identification (RFID) tag contains an antenna. In Fig. 1, the antenna package includes a coil 11, two positive electrodes 12a, two negative electrodes 12b, and a bottom plate 13.

The coil 11 can be disposed on the bottom plate 13.

Two positive electrodes 12a and two negative electrodes 12b are disposed on the bottom plate 13. The two positive electrodes 12a are electrically connected to the coil 11. The two negative electrodes 12b are electrically connected to the coil 11. among them. The positions of the two positive electrodes 12a and the two negative electrodes 12b may be disposed inside the coil 11, that is, within the range surrounded by the coil 11, and respectively disposed on the upper and lower sides or the left and right sides in the coil 11. Of course, the positions of the two positive electrodes 12a and the two negative electrodes 12b may also be disposed outside the coil 11, or partially outside the coil 11, and partially inside the coil 11, depending on the design.

The two positive electrodes 12a and the two negative electrodes 12b may be staggered and may be distributed in a matrix. That is, the positive electrode 12a and the negative electrode 12b are staggered regardless of the longitudinal or lateral alignment. In the present embodiment, the number of the positive electrodes 12a is two, and of course, a plurality may be used. The number of negative electrodes 12b is Two, of course, can be multiple.

The coil 11 is configured to wirelessly receive a first electric wave signal having a first information from a radio frequency identification reader (not shown), and convert the first electric wave signal into a first signal current having the first information. . Moreover, the coil 11 can return the second signal current with the second information sent by the user identification module 100, and convert the second signal current into the second electric wave signal with the second information, and wirelessly transmit the radio frequency identification. Reader (not shown).

The two positive electrodes 12a and the two negative electrodes 12b are for transmitting a first signal current including the first information and a second signal current including the second information.

The backplane 13 is typically a printed circuit board or a flexible flexible board. The material of the bottom plate 13 may be other materials such as glass fiber or bakelite. Of course, the bottom plate 13 may also be made of other materials.

Please refer to Figure 2A. 2A is a first partial schematic view of an antenna module of a radio frequency identification (RFID) tag in accordance with the present invention. A radio frequency identification (RPID) tag antenna module is applied to a subscriber identity module (SIM) 100 to provide data communication between the subscriber identity module 100 and the radio frequency identification reader. In FIG. 2, the antenna module of the radio frequency identification (RFID) tag further includes a first substrate 14 and a soft row 15.

The first substrate 14 has two first electrode contacts 17a and two second electrode contacts 17b. The first electrical contact 17a may be a positive electrode or a negative electrode, depending on the electrodes to be connected. Similarly, the second electrical contact 17b can be a positive electrode or a negative electrode, depending on the connected electrodes. The contact method causes the plurality of first electrode contacts 17a and the plurality of second electrode contacts 17b to be mutually opposite in polarity.

At least one of the two first electrode contacts 17a may correspond to at least one of the plurality of positive electrodes 12a, and may of course correspond to at least one of the plurality of negative electrodes 12b. Moreover, when at least one of the two first electrode contacts 17a can correspond to at least one of the two positive electrodes 12a, at least one of the second electrode contacts 17b also has at least one second electrode contact 17b corresponding to the two negative electrodes. At least one of 12b may also correspond to at least one of the two positive electrodes 12a. Therefore, when the first substrate 14 and the bottom plate 13 are bonded together, the mutually corresponding positive electrode 12a and the first electrode contact 17a can be electrically connected to each other, and the corresponding negative electrode 12b and second electrode contact 17b can also The antennas of the RFID tag are electrically connected to the user identification module 100 to provide data communication between the subscriber identity module 100 and a radio frequency identification reader (not shown). In this embodiment, the number of the first electrode contact 17a and the second electrode contact 17b is four, and of course, a plurality may be used. The two first electrode contacts 17a are electrically connected to each other, and one of the first electrode contacts 17a is electrically connected to the soft row 15. The two second electrode contacts 17b are electrically connected to each other, and one of the second electrode contacts 17b is electrically connected to the soft row 15.

The plurality of first electrode contacts 17a and the plurality of second electrode contacts 17b may be located on one side 14a of the first substrate 14 or on both sides 14a and 14b of the first substrate 14. Please refer to Figure 2B. 2B is a second partial schematic view of a radio frequency identification (RFID) tag in accordance with the present invention. In FIG. 2B, four first electrode contacts 17a and a plurality of second electrode contacts 17b are respectively disposed on the two side faces 14a and 14b of the first substrate 14, and each of the corresponding first electrode contacts 17a is electrically connected to each other. Connected, each of the second electrode contacts 17b is electrically connected to each other.

The plurality of first electrode contacts 17a and the plurality of second electrode contacts 17b may be staggered and may be arranged in a matrix. The plurality of first electrode contacts 17a may be disposed corresponding to the positions of the plurality of positive electrodes 12a or the plurality of negative electrodes 17b. The plurality of second electrode contacts 17b may be disposed corresponding to the positions of the plurality of positive electrodes 12a or the plurality of negative electrodes 17b.

One end of the flexible row 15 is connected and electrically connected to the first substrate 14.

The other end of the flexible row 15 is used to electrically connect the subscriber identity module 100 and to transmit the first wave signal having the first information to the subscriber identity module 100. The user identification module 100 parses the first information in the received first radio wave signal to generate a second radio wave signal having the second information, and returns the second radio wave signal having the second information to the first via the soft row 15 The substrate 14 is returned to the coil 11 by the first substrate 14.

Please refer to Figure 3. 3 is a third partial schematic view of an antenna module of a radio frequency identification (RFID) tag in accordance with the present invention. The user identification module card further includes a second substrate 16. The second substrate 16 is connected and electrically connected to the other end of the flexible row 15 for contacting and electrically connecting the subscriber identity module 100. The second substrate 16 has a plurality of holes 16a and at least one first metal contact 16b. At least one first metal contact 16b is electrically connected to the subscriber identity module. A plurality of holes 16a are used to expose a plurality of second metal contacts 101 on the user identification module 100.

That is, the flexible row 15 can be electrically connected directly to the first substrate 14 and the subscriber identity module 100, that is, between the first substrate 14 and the subscriber identity module 100. However, the flexible row 15 may be designed to be electrically connected to the first substrate 14 at one end and electrically connected to the second substrate 16 at the other end to be electrically connected to the subscriber identity module 100 through the second substrate 16. In other words, the flexible row 15 can also be connected between the first substrate 14 and the second substrate 16, and electrically connected to the user identification module through the second substrate 16. Block 100. Therefore, the first electric wave signal having the first information transmitted from the first substrate 14 through the soft row 15 is given to the user identification module 100, and the first information in the first electric wave signal is parsed by the user identification module 100 to have a second The second radio wave signal of the information is then transmitted back to the first substrate 14 via the flexible row 15, and is transmitted back to the coil 11 by the first substrate 14. The first radio wave signal having the first information may be directly transmitted from the soft row 15 to the user identification module 100, or may be transmitted from the soft row 15 to the user identification module 100 via the second substrate 16. Similarly, the second radio signal having the second information can be directly transmitted back from the subscriber identity module 100 to the soft bank 15 or from the subscriber identity module 100 via the second substrate 16 to the soft bank 15.

Please refer to FIG. 4A, FIG. 4B, FIG. 4C and FIG. 4D. 4A, 4B, 4C and 4D are schematic diagrams of an antenna module of a radio frequency identification tag according to the present invention. 4A is a first schematic diagram of an antenna module of a radio frequency identification tag according to the present invention. 4B is a second schematic diagram of an antenna module of a radio frequency identification tag in accordance with the present invention. 4C is a third schematic diagram of an antenna module of a radio frequency identification tag in accordance with the present invention. 4D is a fourth schematic diagram of an antenna module of a radio frequency identification tag according to the present invention (refer to FIG. 1 to FIG. 3 for detailed components).

In Fig. 4A, the two positive electrodes 12a on the coil 11 are respectively correspondingly and electrically connected to the two second electrode contacts 17b on the first substrate 14. The two negative electrodes 12b on the coil 11 are respectively corresponding to and electrically connected to the two first electrode contacts 17a on the first substrate 14, so that the antenna module of the RFID tag is electrically connected to the subscriber identity module 100. The two first electrode contacts 17a and the two second electrode contacts 17b are respectively correspondingly and electrically connected to the two negative electrodes 12b and the two positive electrodes 12a to provide the user identification module 100 and the radio frequency identification reader ( Data communication is not shown in the figure.

In FIG. 4B and FIG. 4C, one of the two positive electrodes 12a on the coil 11 is electrically connected to one of the two first electrode contacts 17a, and one of the two negative electrodes 12b and the two second electrodes are electrically connected. Two electrical connections of one of the contacts 17b are electrically connected.

The first electrode contact 17a of the first substrate 14 of the first substrate 14 corresponds to and is electrically connected to one of the two positive electrodes 12a on the coil 11 and is located on the first substrate 14. One of the two second electrode contacts 17b corresponds to and is electrically connected to one of the two negative electrodes 12b on the coil 11, so that the antenna module of the RFID tag and the user identification module 100 Electrical connection.

Corresponding to one of the two first electrode contacts 17a and electrically connected to one of the two positive electrodes 12a, and one of the two second electrode contacts 17b The electrode contact 17b corresponds to and is electrically connected to one of the two negative electrodes 12b to provide data communication between the user identification module 100 and a radio frequency identification reader (not shown).

In FIG. 4D, one of the two positive electrodes 12a on the coil 11 is electrically connected to one of the two second electrode contacts 17b, and one of the two negative electrodes 12b is connected to the two first electrode contacts 17a. An electrical connection diagram of an electrical connection.

The first electrode contact 17a of the first substrate 14 of the first substrate 14 corresponds to and is electrically connected to one of the two negative electrodes 12b on the coil 11 to be located on the first substrate 14. One of the two second electrode contacts 17b corresponding to the second electrode contact 17b and electrically connected to one of the two positive electrodes 12a on the coil 11 causes the antenna module of the radio frequency identification tag and the user identification module 100 Electrical connection.

Corresponding to one of the two first electrode contacts 17a and electrically connected to one of the two negative electrodes 12b, and one of the two second electrode contacts 17b to the second electrode contact 17b Corresponding and electrically connected to one of the two positive electrodes 12a to provide data communication between the subscriber identity module 100 and a radio frequency identification reader (not shown).

Please refer to Figure 5 and Figure 6. FIG. 5 is a first schematic diagram showing the combination of an antenna module and a mobile phone of a radio frequency identification tag according to the present invention. Fig. 6 is a second schematic view showing the combination of the antenna module and the mobile phone of the RFID tag according to the present invention (refer to Figs. 1 to 3 for the detailed components).

In FIG. 5 and FIG. 6, the user identification module 100 may be disposed between the mobile phone body 20 and the battery 21, or may be disposed in the mobile phone body 20. The soft row 15 is connected to the subscriber identity module 100. The flexible row 15 is wound around one side of the battery 21. The other end of the flexible row 15 is electrically connected to the first substrate 14. The first substrate 14 is disposed on the battery 21. The bottom plate 13 is attached to the inside of the battery cover 22 with respect to the other side having the coil 11.

When the battery cover 22 is coupled to the mobile phone body 20, at least one of the plurality of first electrode contacts 17a on the first substrate 14 is correspondingly and electrically connected to at least one of the plurality of positive electrodes 12a on the coil 11, and At least one of the plurality of second electrode contacts 17b on a substrate 14 corresponds to and is electrically connected to at least one of the plurality of negative electrodes 12b on the coil 11. Passing a plurality of positive electrodes 12a and a plurality of negative electrodes 12b on the coil 11, and designing a plurality of first electrode contacts 17a and a plurality of second electrode contacts 17b on the first substrate 14 to connect the antenna of the RFID tag The subscriber identity module 100 is electrically coupled to provide data communication between the subscriber identity module 100 and the RFID reader 200. According to an embodiment of the invention, the coil 11 may have at least two positive electrodes 12a and at least two negative electrodes 12b. The first substrate 14 may have at least two first electrode contacts 17a and at least two second electrode contacts 17b. Here, at least one of the positive electrodes 12a is correspondingly and electrically connected to at least one of the first electrode contacts 17a, and at least one of the negative electrodes 12b is correspondingly and electrically connected to at least one of the second electrode contacts 17b. Corresponding to at least one of the plurality of positive electrodes 12a and electrically connecting at least one of the plurality of first electrode contacts 17a, and at least one of the plurality of negative electrodes 12b is correspondingly and electrically connected to the plurality of second electrode contacts 17b At least one of the antennas is configured to electrically connect the antenna of the RFID tag to the subscriber identity module 100 to provide data communication between the subscriber identity module 100 and a radio frequency identification reader (not shown).

Please refer to Figure 7. 7 is a schematic diagram of data communication between an antenna module of a radio frequency identification tag and a radio frequency identification reader according to the present invention (refer to FIG. 1 to FIG. 3 for detailed components).

The subscriber identity module 100 is disposed between the handset body 20 and the battery 21. The soft row 15 is connected to the subscriber identity module 100. The flexible row 15 is wound around one side of the battery 21. The other end of the flexible row 15 is electrically connected to the first substrate 14. The first substrate 14 is disposed on the battery 21. The bottom plate 13 is attached to the inside of the battery cover 22 with respect to the other side having the coil 11. The spacer 30 is disposed between the bottom plate 13 and the first substrate 14. The spacer 30 may be hollowed out in the region of the at least two positive electrodes 12a and the at least two negative electrodes 12b so as to be in contact with the electrodes of the first substrate 14. The spacer 30 is used to shield the reflective interference of the metal parts of the battery.

When the battery cover 22 is combined with the mobile phone body 20, at least one of the plurality of first electrode contacts 17a on the first substrate 14 is correspondingly and electrically connected to at least one of the plurality of positive electrodes 12a or negative electrodes 12b on the coil 11. And at least one of the plurality of second electrode contacts 17b on the first substrate 14 corresponds to and is electrically connected to at least one of the plurality of negative electrodes 12b or positive electrodes 12a on the coil 11. Passing through the plurality of positive electrodes 12a and the plurality of negative electrodes 12b on the coil 11, and designing the plurality of first electrode contacts 17a and the plurality of second electrode contacts 17b on the first substrate 14 to connect the antenna of the RFID tag The subscriber identity module 100 is electrically coupled to provide data communication between the subscriber identity module 100 and the RFID reader 200.

According to an embodiment of the invention, the coil 11 has at least two positive electrodes 12a and at least two negative electrodes 12b. The first substrate 14 has at least two first electrode contacts 17a and at least two second electrode contacts 17b. Here, at least one of the positive electrodes 12a is correspondingly and electrically connected to at least one of the first electrode contacts 17a, and at least one of the negative electrodes 12b is correspondingly and electrically connected to at least one of them. A second electrode contact 17b. Corresponding to at least one of the plurality of positive electrodes 12a and electrically connecting at least one of the plurality of first electrode contacts 17a, and at least one of the plurality of negative electrodes 12b correspondingly and electrically connected to the plurality of second electrode contacts 17b At least one of the antennas for electrically connecting the RFID tag to the subscriber identity module 100 to provide data communication between the subscriber identity module 100 and the RFID reader 200.

Claims

Claim

An antenna module for a radio frequency identification tag, characterized by comprising:

a coil for wirelessly receiving a first information from a radio frequency identification reader, and wirelessly transmitting a second information generated by a subscriber identity module to the radio frequency identification reader;

a plurality of positive electrodes electrically connected to the coil;

A plurality of negative electrodes are electrically connected to the coil.

The antenna module of the radio frequency identification tag according to claim 1, further comprising:

a bottom plate, wherein the coil, the plurality of positive electrodes, and the plurality of negative electrodes are disposed on the bottom plate.

The antenna module of the radio frequency identification tag according to claim 2, wherein the plurality of positive electrodes and the plurality of negative electrodes are disposed inside or outside the coil.

4. An antenna module for a radio frequency identification tag, characterized by comprising:

An antenna having a coil, a plurality of positive electrodes and a plurality of negative electrodes, the plurality of positive electrodes being electrically connected to the plurality of negative electrodes;

a first substrate having a plurality of first electrode contacts and a plurality of second electrode contacts, at least one of the plurality of first electrode contacts corresponding to and electrically connected to at least one of the plurality of positive or negative electrodes, and At least one of the plurality of second electrode contacts corresponding to and electrically connected to at least one of the plurality of negative or positive electrodes;

A flexible row, one end of the flexible row is electrically connected to the first substrate, and the other end of the flexible row is electrically connected to an external component.

The antenna module of the wireless frequency identification tag according to claim 4, wherein the plurality of positive electrodes and the plurality of negative electrodes are staggered.

The antenna module of the radio frequency identification tag according to claim 4, wherein the plurality of first electrode contacts and the plurality of second electrode contacts are disposed on a side of the first substrate.

The antenna module of the radio frequency identification tag according to claim 4, wherein the plurality of first electrode contacts and the plurality of second electrode contacts are respectively disposed on opposite sides of the first substrate, and corresponding to Each of the first electrode contacts is electrically connected to each other, and each of the second electrode contacts is electrically connected to each other.

8. The antenna module of the radio frequency identification tag of claim 4, comprising: A second substrate is electrically connected to the other end of the flexible row for contacting and electrically connecting a subscriber identity module.

The antenna module of the radio frequency identification tag according to claim 4, further comprising:

The antenna module of the radio frequency identification tag according to claim 9, wherein the plurality of positive electrodes and the plurality of negative electrodes are disposed inside or outside the coil.