JP2002358497A - Auxiliary antenna member for contactless data carrier device and article with arranged auxiliary antenna member - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an auxiliary antenna member for a contactless data carrier device which is put on a bag, clothes, etc., and has a long-distance communication with a reader writer while putting on thereupon or putting in a pocket provided thereon. SOLUTION: The auxiliary antenna device for the contactless data carrier device extends the communication distance of the card type contactless data carrier device in use and has an antenna circuit with an antenna coil for resonance which communicates with the reader writer along a plane base material larger in size than the contactless data carrier device in use; and the contactless data carrier device in use is put on along the base material or put in a provided pocket so that the antenna coil surface for resonance of the contactless data carrier device in use is set along the base material, thereby communicating with the reader writer.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an auxiliary antenna member for a non-contact data carrier device for extending the communication distance of a card-type non-contact data carrier device to be used,
The present invention relates to an article provided with the same.

[0002]

2. Description of the Related Art As IC cards have been gradually spread from the aspect of confidentiality of information, in recent years, non-contact type IC cards which exchange information without contacting a read / write device (reader / writer) have been proposed. I have. Above all, a method of exchanging signals with an external read / write device, or exchanging signals and supplying power by electromagnetic waves is generally used. On the other hand, in recent years, various non-contact IC tags in the form of a sheet or a tag, in which an IC carrying data is connected to an antenna coil, have been proposed and applied to products and packaging boxes to prevent shoplifting, distribution systems, and the like. It is being used.

Recently, a test product of a semiconductor chip or a semiconductor chip module of an antenna provided on a terminal surface of an IC chip serving as a data carrier, that is, a coil-on-chip type, has been provided. Tags and non-contact IC cards have been proposed. In such a non-contact type data carrier device such as a non-contact type IC card and a non-contact type IC tag, a booster antenna coil for exchanging signals with an external reader / writer is provided, and this is used as a primary coil (also referred to as a booster antenna). In general, a method of realizing a non-contact method by using a coil-on-chip type data carrier semiconductor chip or another data carrier module provided with a secondary coil for electromagnetically coupling with the semiconductor chip has been adopted. The data carrier module provided with a secondary coil is a general term for a module that has a fine coil serving as a secondary coil and that is directly connected to the data carrier unit.

However, in a card-type non-contact data carrier device including a data carrier module provided with such a primary coil (also referred to as a booster antenna) and a secondary coil, signals are exchanged with an external reader / writer. There was a limit to the distance that could be done, which was a problem in some cases. For example, as shown in FIG. 5, when a card-type non-contact data carrier device 550 equipped with an IC module is used as a commuter pass and the reader / writer unit 510 communicates with a ticket gate at commuting, the commuter pass is read by a reader. It is necessary to bring the writer 510 closer to the writer 510 by a predetermined distance, and it is necessary to take the writer 510 out of the pocket every time a ticket gate is issued.

[0005]

As described above, recently, a card-type data carrier device equipped with an IC module has been used as a commuter pass. This has to be taken out of the box, which has been troublesome.
The present invention responds to this problem, and enables communication with a reader / writer at a long distance while being attached to a bag or clothes, not attached thereto, or in a pocket provided therein. An object of the present invention is to provide an auxiliary antenna member for a contact type data carrier device.

[0006]

SUMMARY OF THE INVENTION An auxiliary antenna member for a non-contact type data carrier device according to the present invention is an auxiliary antenna for a non-contact type data carrier device for extending a communication distance of a card type non-contact type data carrier device to be used. An antenna member having an antenna circuit having an antenna coil for resonance communicating with a reader / writer formed along a planar base material having a size larger than that of a non-contact type data carrier device to be used. A non-contact type data carrier device to be used is placed in an attached or provided pocket with the antenna coil surface for resonance along the base material for communication with a reader / writer. It is characterized by the following. And in the above,
The card-type non-contact data carrier device used is
SO15693 (proximity type) specification or ISO1444
It is a card type non-contact type data carrier module of 3 (proximity type) specification. Further, in the above, the antenna coil or the antenna coil and the capacitance pattern are formed by a photo-etching method from a laminated sheet provided with a conductive thin layer on one or both surfaces of a base material as a base thereof. Wherein the conductive thin layer is an aluminum thin layer. Also, in the above,
At least the antenna coil is characterized in that a conductive paste is formed on a base material by a coating film.

[0007] An article of the present invention is a carrying tool such as clothing or a bag, wherein the auxiliary antenna member for a non-contact type data carrier apparatus of the present invention is provided.

[0008]

The auxiliary antenna member for a non-contact data carrier device according to the present invention has the above-described structure.
Provided is an auxiliary antenna member for a non-contact type data carrier device which can be attached to a bag, clothes, or the like, and can be communicated with a reader / writer at a long distance without being attached to or attached to a pocket provided therein. Is possible. The card-type non-contact type data carrier device to be used is ISO15693 (proximity type) specification or ISO1
4443 (proximity type) card-type non-contact type data carrier module. More specifically, in these specifications, a booster antenna unit and the booster antenna unit are used as a primary coil and electromagnetically coupled with the primary coil. And a coil-on-chip type data carrier semiconductor chip provided with the secondary coil described above or another data carrier module. The auxiliary antenna member for a non-contact type data carrier device of the present invention may further include a capacitor portion formed of a semiconductor chip and / or a capacitor pattern formed of a conductor for forming a capacitor provided on both sides of the base substrate. , The resonance of communication with the reader / writer can be obtained. In particular, by providing a capacitance pattern that can change the capacitance, Has a high degree of freedom. Further, when the antenna coil or the antenna coil and the capacitor pattern are formed by a photo-etching method from a laminated sheet having a conductive thin layer provided on one or both surfaces of a base material as a base thereof, the antenna coil is processed accurately. Can be obtained. In this case, an aluminum thin layer is easily obtained as the conductive thin layer, but the conductive thin layer is not limited to this. A copper thin layer may be used. Further, at least when the antenna coil is formed by forming a conductive paste on the base material, the antenna coil is suitable for mass production. The method for forming the antenna unit is not limited to this.

The article of the present invention having the above-mentioned structure does not attach to the auxiliary antenna member for the non-contact type data carrier device provided thereon, or for the non-contact type data carrier device disposed therein. The communication with the reader / writer can be performed over a long distance while being kept in the pocket of the auxiliary antenna member.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to the drawings. FIG. 1A is a schematic view of an example of an embodiment of an auxiliary antenna member for a non-contact type data carrier device according to the present invention, and FIG. 1B is a cross-sectional view taken along line A1-A2 of FIG. FIG. 2 is a view of the base 110 opposite to the antenna coil 120 as seen through from the A1 side in FIG. 1B, and FIG. 3 is a view for explaining the connection of the antenna coil and the capacitance pattern. FIG. 4 is a diagram for explaining a method of using the auxiliary antenna member for a non-contact type data carrier device according to the embodiment in a bag, and FIG. FIG. 6 is a diagram for explaining the ticket inspection method used, and FIG. 6 is a diagram showing the relationship between the installation position and the communication distance of the non-contact data carrier device in the non-contact data carrier device auxiliary antenna member of the embodiment. still,
1 (a) and 1 (b), each one-dot chain line is a center line in each direction of the auxiliary antenna member for the non-contact type data carrier device of the embodiment, and here, the antenna coil 1
Reference numeral 20 is formed substantially symmetrically with respect to the center line. Here, the X direction and the Y direction are taken along the center line as shown in FIG. 1 to 5, 110 is a base material, 11
1, 112 are protective films, 120 is an antenna coil, 12
1, 122 and 125 are connection terminal portions, 130 is a capacitance pattern, 131 is a connection wire, 132 is a connection portion, 135 is a capacitance pattern, 136 is a connection wire, 137 is a connection portion,
140 is a chip capacitor, 150 is a wiring for connection, 15
1, 152 are connection terminals, 160 is a pocket, 160A
Is a pocket region, 170 is a non-contact type data carrier device, 170A is a non-contact type data carrier device region, 18
1, 182 is a caulking connection section, 410 is a reader / writer section,
411 is an electromagnetic wave, 420 is a bag, 430 is an auxiliary antenna member for a non-contact data carrier device, and 450 is a non-contact data carrier device.

An embodiment of an auxiliary antenna member for a non-contact type data carrier device according to the present invention will be described with reference to FIG. The auxiliary antenna member for the non-contact type data carrier device of the present embodiment is an auxiliary antenna member for the non-contact type data carrier device for extending the communication distance of the card type non-contact type data carrier device to be used. An antenna circuit having an antenna coil 120 for resonance communicating with a reader / writer (corresponding to 410 in FIG. 4) is formed along a planar base material 110 having a larger size than the data carrier device 170. In addition to the antenna coil 120, the capacitor has an adjusting capacitor formed by the chip capacitor 140 and the capacitor patterns 130 and 135. A non-contact type data carrier device 170 to be used is placed in a pocket 160 provided along the base material 110 with the antenna coil surface for resonance along the base material at the approximate center position. Into, and
Communication with a reader / writer is performed while the whole is put in a bag 420 or the like as shown in FIG. An antenna circuit having an antenna coil 120 is formed along the periphery of an A4 size base material 110.
This is an auxiliary antenna member for a non-contact data carrier device for attaching a card-type non-contact data carrier module of 93 (proximity type) or ISO 14443 (proximity type) specification.

The antenna coil 120 forms an antenna circuit by combining the chip capacitor 140 and the capacitance patterns 130 and 135, and resonates electromagnetic waves from the reader / writer.
Perform at 5. The antenna coil 120 is formed to be larger than a resonance antenna coil (not shown) of the non-contact type data carrier device 170 to be used, so that a resonance peak of a signal from the reader / writer can be increased. This enables long-distance communication as compared with a non-contact type antenna coil (not shown) of the non-contact data carrier device 170 to be used. With this, in a state in which the auxiliary antenna member for the non-contact type data carrier device of the present example is put in a bag or the like while being put in the pocket 160 provided along the base substrate 110, a communication with the reader / writer is performed. Can communicate. As the non-contact data carrier device 170, a card-type non-contact data carrier module of ISO15693 (proximity type) or ISO14443 (proximity type) specification is applied. For example, a booster antenna unit and the booster antenna unit A coil-on-chip type data carrier semiconductor chip or another data carrier module having a primary coil and a secondary coil for electromagnetic coupling with the primary coil is preferable in terms of communication distance, but is not limited thereto. Is not done. Using the auxiliary antenna member for a non-contact type data carrier device of the present example, a booster antenna portion and a coil-on-chip type data carrier semiconductor chip or another data carrier module having the booster antenna portion as a primary coil are used. In this case, the antenna coil 120 becomes a primary coil receiving an electromagnetic wave from a reader / writer, a booster antenna (not shown) becomes a secondary coil, and a coil electromagnetically coupled to the booster antenna (not shown) ( Signals are transmitted and received via a not shown).

The antenna coil 120, the connection terminal portions 121, 122, and 125, the capacitance pattern 130, the connection wirings 131 and 132, and the connection wiring 150 and the connection wiring 150 formed integrally therewith. Been formed,
Each of the connection terminals 151 and 152, the capacitance pattern 130, and the connection wirings 136 and 137 is made of a conductive thin layer such as an aluminum thin layer or a copper thin layer, and is an insulating base material (corresponding to a base base material). Are formed by photo-etching a conductive thin layer laminated on both surfaces of the substrate, and each part is formed with high precision. A plastic such as PET (polyethylene terephthalate), polyvinyl chloride (polyethylene), polycarbonate, polyimide, or the like is used as an insulating base material serving as a base material, but is not limited thereto. The antenna coil 120 shown in FIG. 1A is electrically connected to the connection terminals 151 and 152 shown in FIG. 2 by connection terminals 121 and 122, respectively. This will be described with reference to FIG. FIG. 3 shows a case where four pairs of necessary capacitance patterns among the capacitance patterns 130 and 135 shown in FIGS. 1A and 2 are used.
At 1 and 182, a capacitor portion is formed by caulking connection with the connection terminal portions 151 and 152. In FIG. 3, a dotted line indicates that the antenna coil 120 shown in FIG.
1 and 122 are shown. The capacitance pattern 130 is connected to one end of the antenna coil 120 via the connection wiring 131 and the connection portion 132, and the antenna coil 1
20 is not connected to the other end. The capacitance pattern 135 is connected to the connection wiring 1 via the connection wirings 136 and 137.
50, and is not connected to the other end of the connection wiring 150. Each set of capacitance patterns forms a capacitor using the base substrate 110 as a dielectric layer therebetween, and the formed capacitors have substantially the same electrode area and are configured in parallel. After performing the caulking connection, the resonance is adjusted by leaving only the necessary capacitance pattern at the time of adjusting the resonance, and removing the other by etching or the like, or cutting the connection portion 132 with a laser.

In this embodiment, a pocket 160 is provided on the opposite side of the base substrate 110 from the antenna coil 120 side, and the non-contact type data carrier device 170 is inserted into the pocket 160 for use. An adhesive layer may be provided at the position and attached thereto. Further, the antenna coil 120, the connection terminal portions 121, 122, 125 formed integrally therewith, and the capacitance pattern 13
0, connection wirings 131 and 132, furthermore, connection wiring 150 and connection terminal 15 formed integrally therewith.
1, 152, the capacitance pattern 130, the connection wiring 136,
137 may be formed at least in part by a printing method using a conductive paste. Further, in the above description, it is assumed that the device is used in a bag, but the present invention is not limited to this. For example, it may be used by arranging it on clothing.

As another form of the auxiliary antenna member for the non-contact type data carrier device of this embodiment, one having only one of the chip capacitor 140 and the combination of the capacitance patterns 130 and 135 in this embodiment is used. No. In particular, a configuration in which only the capacitance of the capacitance pattern (corresponding to 130 and 135) is used without using the chip capacitor (corresponding to 140) is practical from the viewpoint of structure and manufacturing.

[0016]

EXAMPLE An aluminum thin layer having a thickness of 30 μm and a thickness of 38
A4 size non-contact data carrier according to the embodiment shown in FIGS. 1 and 2 by a photo-etching method using a base material 110 made of a PET film having a thickness of μm and a laminated material formed of a thin aluminum layer having a thickness of 20 μm. An auxiliary antenna member for a device was manufactured. In FIG. 1A, the antenna coil 1
The position of the 20 end is 23 mm from the end of the side straddling the X direction, Y
An antenna coil 120 having a line and space of 5 mm, 1 mm and a number of turns of 3 is set to 15 mm from the end of the side portion straddling the direction.
Was produced with a thickness of 30 μm. As for the capacitance pattern portion, one pair of capacitance patterns (one pair of 130 and 135) is 3 pF.
30 were formed by etching, and the number was set to 10 (total 30 pF) when adjusting the resonance. Also,
The chip capacitor 140 used 25 pF. Thus, using the non-contact type data carrier device auxiliary antenna member manufactured, the non-contact type data carrier device,
As a result of examining the relationship between the distance from the center position and the communication distance, data as shown in FIG. 6 was obtained. Here, as the non-contact type data carrier device, a card type device of ISO15693 (proximity type) specification (a card type data carrier device manufactured by Dai Nippon Printing Co., Ltd .;
mode) and 13.5 MHZ as a reader / writer
z, the output of 1 W was used. As a result, the position where the communication distance becomes maximum is almost the center position of the auxiliary antenna member for the non-contact type data carrier device, and a communication distance of about 79 cm was obtained. In general, when the frequency of the electromagnetic wave for communication with the reader / writer is 13.56 MHz, the communication distance is about 20 cm.

[0017]

The auxiliary antenna member device for a non-contact type data carrier device according to the present invention is attached to a bag, clothing, etc., and is not attached to the device or communicates with a reader / writer while being kept in a pocket provided therein. Of a non-contact type data carrier device, which can be performed at a long distance.

[Brief description of the drawings]

FIG. 1A is a schematic view of an example of an embodiment of an auxiliary antenna member for a non-contact type data carrier device according to the present invention, and FIG. 1B is a diagram illustrating A1-A2 in FIG. FIG.

FIG. 2 is a view of an opposite side of the antenna coil 120 of the base material 110 as seen through from the A1 side in FIG.

FIG. 3 is a diagram for explaining connection and a capacitance pattern of an antenna coil;

FIG. 4 is a diagram for explaining a method of using the auxiliary antenna member for a non-contact type data carrier device according to the embodiment when the auxiliary antenna member is disposed in a bag;

FIG. 5 is a diagram for explaining a ticket gate method using a conventional non-contact data carrier device.

FIG. 6 is a diagram illustrating a relationship between an installation position and a communication distance of the non-contact data carrier device in the auxiliary antenna member for the non-contact data carrier device according to the embodiment;

[Explanation of symbols]

Reference Signs List 110 base substrate 111, 112 protective film 120 antenna coil 121, 122, 125 connection terminal part 130 capacitance pattern 131 connection wiring 132 connection part 135 capacitance pattern 136 connection wiring 137 connection part 140 chip capacitor 150 connection wiring 151, 152 Connection terminal 160 Pocket 160A Pocket region 170 Non-contact type data carrier device 170A Non-contact type data carrier device region 181 and 182 Caulking connection portion 410 Reader / writer portion 411 Electromagnetic wave 420 Bag 430 Auxiliary antenna member for non-contact type data carrier device 450 Non-contact data carrier device 510 Reader / writer unit 511 Electromagnetic wave 550 Non-contact data carrier device

Claims (7)

[Claims] 1. An auxiliary antenna member for a non-contact type data carrier device for extending a communication distance of a card type non-contact type data carrier device to be used, wherein the flat surface has a larger size than the non-contact type data carrier device to be used. An antenna circuit having an antenna coil for resonance communicating with a reader / writer is formed along a base member of a shape, and a non-contact type data carrier device to be used is provided at a substantially center position of the antenna coil surface for resonance. The auxiliary antenna member for a non-contact type data carrier device, wherein the auxiliary antenna member is placed in a pocket provided or provided so as to communicate with a reader / writer along the base material. 2. A card-type non-contact data carrier module according to claim 1, wherein the card-type non-contact data carrier device used is an ISO15693 (proximity type) specification or an ISO14443 (proximity type) specification card-type non-contact data carrier module. An auxiliary antenna member for a non-contact type data carrier device. 3. The capacitor according to claim 1, wherein the base member is sandwiched between a capacitor portion formed of a semiconductor chip and / or a capacitor pattern formed of a conductor for forming capacitors provided on both surfaces of the base member. An auxiliary antenna member for a non-contact type data carrier device, comprising a capacitance portion to be provided. 4. The antenna coil according to claim 1, wherein the antenna coil or the antenna coil and the capacitor pattern are formed by a photo-etching method from a laminated sheet provided with a conductive thin layer on one or both surfaces of a base material as a base thereof. An auxiliary antenna member for a non-contact type data carrier device, characterized in that: 5. The auxiliary antenna member for a non-contact data carrier device according to claim 4, wherein the conductive thin layer is an aluminum thin layer. 6. The auxiliary antenna member for a non-contact data carrier device according to claim 1, wherein at least the antenna coil is formed by forming a conductive paste on a base material. 7. A transportation tool such as clothing or a bag,
An article provided with the auxiliary antenna member for a non-contact data carrier device according to claim 1.