JP2014003452A - Non-contact type data transmitter/receiver - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a non-contact type data transmitter/receiver which is communicable when being directly bonded to a metal, enables easy adjustment of the resonance frequency and the communication range, and has excellent communication characteristics.SOLUTION: A non-contact type data transmitter/receiver 10 includes: a dielectric base material 24; an IC chip provided on the dielectric base material 24; a first antenna part 23 composed of a planar first conductor which has a non-continuous region near a feeding point electrically connected with the IC chip and is formed on one surface of the dielectric base material 24 and a planar second conductor 21 which is provided on the other surface 24b side of the dielectric base material 24 and faces the first conductor while being separated therefrom; and a second antenna part 40 which is provided near the first antenna part 23 separated from the first antenna part 23, is disposed along a longitudinal direction of the first antenna part 23, and includes a planar third conductor 41.

Description

 The present invention relates to a non-contact type data receiving / transmitting body which is directly attached to a metal so as to receive information from the outside and transmit information to the outside in a non-contact state.

 An IC label, which is an example of a non-contact type data receiving / transmitting body, includes an inlet composed of a base material, an antenna provided on one surface thereof and connected to each other, and an IC chip. When an electromagnetic wave or electromagnetic wave is received, an electromotive force is generated in the antenna by a resonance action, and the IC chip in the IC label is activated by this electromotive force, and information in the IC chip is converted into a signal, and this signal is transmitted from the antenna of the IC label. Called.

 In order for the IC label to operate, the radio wave or electromagnetic wave transmitted from the information writing / reading device must be sufficiently taken into the antenna of the IC label, and an electromotive force greater than the operating electromotive force of the IC chip must be induced. However, when the IC label is attached to the surface of the metal article, the magnetic flux is parallel to the surface of the metal article on the surface of the metal article. For this reason, the magnetic flux across the antenna of the IC label is reduced and the induced electromotive force is lowered. Therefore, there is a problem that the induced electromotive force is lower than the operating electromotive force of the IC chip and the IC chip is not operated.

Therefore, a metal-compatible RFID tag is disclosed that includes a metal sheet portion and an RFID tag portion provided on the metal sheet portion, and the metal sheet portion includes a metal reflector and a spacer (for example, Patent Documents). 1).
By adopting such a configuration, the attachment position of the metal-compatible RFID tag can be separated from the metal article by a certain distance or more, so the influence of the metal-compatible RFID tag from the metal article can be reduced. The corresponding RFID tag can transmit and receive information.

International Publication No. 2006/114421 Pamphlet

 However, the metal-compatible RFID tag of Patent Document 1 is not easy to adjust the resonance frequency and the communication distance.

 The present invention has been made in view of the above circumstances, and is capable of communication in a state of being directly attached to a metal, and can easily adjust a resonance frequency and a communication distance, and has excellent communication characteristics. An object is to provide a transmission / reception body.

 The non-contact type data transmitting / receiving body according to the present invention includes a dielectric base material, an IC chip provided on the dielectric base material, and a discontinuous region in the vicinity of a feeding point electrically connected to the IC chip. A planar first conductor formed on one surface of the dielectric base material, and a planar first conductor provided on the other surface side of the dielectric base material and spaced apart from the first conductor. A first antenna portion composed of a second conductor, and in the vicinity of the first antenna portion, spaced apart from the first antenna portion and arranged along the longitudinal direction of the first antenna portion. And a second antenna portion having a third conductor.

 In the non-contact type data transmitting / receiving body of the present invention, it is preferable that the radiation surface of the first conductor or the radiation surface of the second conductor and the radiation surface of the third conductor are arranged on the same surface.

 In the non-contact type data receiving and transmitting body of the present invention, the radiation surface of the first radiation conductor, the extended surface of the radiation surface of the first radiation conductor, the radiation surface of the second radiation conductor or the radiation surface of the second radiation conductor. It is preferable that the extended surface of the third radiation conductor intersects the radiation surface of the third radiation conductor or the radiation surface of the third radiation conductor.

 In the non-contact type data receiving / transmitting body of the present invention, the short circuit line that penetrates the dielectric base material and connects the first conductor and the second conductor, the short circuit line that penetrates the dielectric base material, and It is preferable that the first conductor and the second conductor are connected to each other while being spaced apart from each other, and a power supply line that feeds power to the first conductor.

 According to the present invention, the first conductor or the second conductor arranged on the metal article side suppresses the influence of the metal article even in a state of being attached to the metal article, and the first conductor or the second conductor arranged on the opposite side of the metal article The second conductor can communicate. As a result, communication using the third conductor for the booster is possible, so that the communication distance can be extended with respect to all directions even when the booster is attached to the metal article. Further, the first conductor has a planar shape formed over one surface of the dielectric substrate, the second conductor has a continuous planar shape formed over the other surface of the dielectric substrate, and the third conductor Can be adjusted to adjust the resonance frequency and communication distance of the non-contact type data receiver / transmitter of the present invention by changing the size (length, width) of the third conductor. it can. Moreover, the inductance (L) of the third conductor can be adjusted by changing the length of the third conductor, and the capacitance (C) of the third conductor can be adjusted by changing the width of the third conductor. Inductance and capacitance can be adjusted individually and easily. In addition, since the radiation surface of the first conductor or the radiation surface of the second conductor and the radiation surface of the third conductor are magnetically coupled with each other, the input efficiency from the third conductor to the first conductor or the second conductor is improved. Can be improved.

It is a schematic perspective view which shows 1st embodiment of the non-contact-type data transmission / reception body of this invention. It is the schematic which shows the inlet which comprises 1st embodiment of the non-contact-type data transmission / reception body of this invention, (a) is sectional drawing which follows the AA line of FIG. 1, (b) is a top view, c) is a bottom view. It is a schematic perspective view which shows 2nd embodiment of the non-contact-type data transmission / reception body of this invention. It is the schematic which shows the inlet which comprises 2nd embodiment of the non-contact-type data transmission / reception body of this invention, (a) is sectional drawing which follows the BB line of FIG. 3, (b) is a top view, ( c) is a bottom view. It is a schematic perspective view which shows 3rd embodiment of the non-contact-type data transmission / reception body of this invention. It is a graph which shows the result of having measured the communication characteristic of the experiment example of this invention.

An embodiment of the non-contact type data receiving / transmitting body of the present invention will be described.
Note that this embodiment is specifically described in order to better understand the gist of the invention, and does not limit the present invention unless otherwise specified.

(1) First Embodiment FIG. 1 is a schematic perspective view showing a first embodiment of a non-contact type data receiving / transmitting body of the present invention. FIG. 2 is a schematic view showing an inlet constituting the first embodiment of the non-contact type data receiving / transmitting body of the present invention, (a) is a cross-sectional view taken along the line AA in FIG. A top view and (c) are bottom views.
In all of the following drawings, in order to make each component easy to see, the scale of the size may be changed depending on the component.
The non-contact type data transmitting / receiving body 10 of the present embodiment includes an inlet 20 having a first antenna portion 23 having a planar second conductor 21 and a first conductor 22, and the first inlet 20 in the vicinity of the inlet 20. A booster second antenna portion 40 having a planar third conductor 41 spaced apart from the antenna portion 23 and disposed along the longitudinal direction of the first antenna portion 23 (inlet 20). Yes.
Note that the first antenna portion 23 and the second antenna portion 40 of the inlet 20 are separated from each other when the second conductor 21 constituting the inlet 20 and the third conductor 41 constituting the second antenna portion 40 are directly connected. Say not connected.

The inlet 20 includes a rectangular dielectric substrate 24, a first conductor 22 provided on one surface 24a of the dielectric substrate 24, a second conductor 21 provided on the other surface 24b of the dielectric substrate 24, and a dielectric. The body substrate 24 is penetrated in the thickness direction, the short-circuit wire 25 connecting the first conductor 22 and the second conductor 21, and the dielectric substrate 24 is penetrated in the thickness direction and separated from the short-circuit wire 25. The first antenna portion 23 is configured with a feed line 26 that faces the first conductor 22 and the second conductor 21, and the IC chip 27 is electrically connected to the first antenna portion 23. ing.
In addition, the first conductor 22 and the second conductor 21 are spaced apart from each other via the dielectric base material 24 and are disposed to face each other.
As described above, the first antenna unit 23 forms an inverted F antenna.

The first conductor 22 has a discontinuous region in the vicinity of the feeding points 22a and 22a that are electrically connected to the IC chip 27, and has a substantially rectangular shape formed over the entire surface 24a of the dielectric substrate 24. I am doing. That is, the first conductor 22 has discontinuous regions 22b and 22b in which the one surface 24a of the dielectric base 24 is exposed in the vicinity of the feeding points 22a and 22a, but the other portions are the dielectric base 24. It has a continuous planar (substantially rectangular) region covering almost the entire area of one surface 24a.
The second conductor 21 has a rectangular shape formed over the entire other surface 24 b of the dielectric base material 24. That is, the second conductor 21 has a continuous planar (substantially rectangular) region that covers almost the entire area of the other surface 24 b of the dielectric substrate 24.

The short-circuit line 25 is made of a conductor filled in a through hole that penetrates the dielectric base material 24 in the thickness direction, and electrically connects the first conductor 22 and the second conductor 21.
The power supply line 26 is made of a conductor filled in a through-hole penetrating the dielectric base material 23 in the thickness direction, and is opposed to the short-circuit line 25 with a space therebetween, and electrically connects the first conductor 22 and the second conductor 21. Connected. The feeder line 26 feeds power from the IC chip 27 mounted on the first conductor 22 to the second conductor 21 via the feeding points 22a and 22a.

In addition, the inlet 20 is provided with an insulating portion 28 made of an insulating resin that covers the IC chip 27 and its vicinity in order to protect the IC chip 27 from heat and moisture.
The vicinity of the IC chip 27 refers to the power supply points 22a and 22a of the first conductor 22 connected to the IC chip 27, and the power supply points 22a and 22a of the IC chip 27 and the first conductor 22 in the dielectric substrate 24. It is the peripheral part.

The first antenna unit 23 is not for direct communication with the information writing / reading device, but for electrical connection with the second antenna unit 40 by electromagnetic induction. That is, the second antenna unit 40 directly communicates with the information writing / reading device.
Further, the first antenna portion 23 is disposed on the metal article side (so as to be in contact with the metal article) when the non-contact type data receiving / transmitting body 10 is attached to the metal article, and the second conductor 21 is arranged on the opposite side of the metal article (so as not to contact the metal article), so that the first conductor 22 arranged on the metal article side suppresses the influence of the metal article, and the non-contact type data receiver / transmitter 10 to enable communication.

 The second antenna unit 40 is roughly configured by a rectangular base material 42 and a continuous planar (rectangular) third conductor 41 provided on the entire surface of the base material 42.

The interval (distance) between the inlet 20 and the second antenna unit 40 is not particularly limited, but is appropriately adjusted according to the target communication distance.
In addition, a radiation surface (a surface parallel to the other surface 24 b of the dielectric base material 24) 21 a of the second conductor 21 that forms the first antenna portion 23 and a radiation surface (a surface of the third conductor 41 that configures the second antenna portion 40). The inlet 20 and the second antenna portion 40 are arranged so that a surface 41 a parallel to one surface of the base material 42 is disposed on the same surface.

 In the present embodiment, the case where the radiation surface 21a of the second conductor 21 and the radiation surface 41a of the third conductor 41 are arranged on the same surface is illustrated, but the present invention is not limited to this. . In the present invention, the radiation surface of the first conductor (a surface parallel to one surface of the dielectric base) and the radiation surface of the third conductor may be arranged on the same surface.

 The third conductor 41 constituting the second antenna unit 40 has a half-wavelength of a radio wave frequency (300 MHz to 30 GHz) of an ultra-high frequency band <UHF> or a microwave band that can be used for a non-contact IC module such as a non-contact IC card. It is provided on one surface of the base material 42 so as to have a receivable shape. In addition, the length in the longitudinal direction of the third conductor 41 is a half wavelength of the radio wave frequency (300 MHz to 30 GHz) of the ultra-high frequency band <UHF> or microwave band that can be used for a non-contact IC module such as a non-contact IC card. The length is equivalent.

 Moreover, although the case where the dielectric base material 24 which comprises the inlet 20 and the base material 42 which comprises the 2nd antenna part 40 were separate in this embodiment was illustrated, this invention is limited to this. It is not a thing. In the present invention, the dielectric base material constituting the inlet and the base material constituting the second antenna portion may be the same base material. When the same base material is used in this way, for example, the first conductor and the second conductor are provided apart from each other so that the third conductor does not contact.

 Examples of the dielectric that forms the dielectric substrate 24 include various plastics and ceramics.

The first conductor 22 is formed on the one surface 24a of the dielectric substrate 24 using a polymer type conductive ink in a predetermined pattern by a printing method such as screen printing or ink jet printing, or a conductive foil. Etched or metal plated.
The second conductor 21 is formed on the other surface 24b of the dielectric base 24 using a polymer type conductive ink in a predetermined pattern by a printing method such as screen printing or ink jet printing, or a conductive foil. Is formed by etching or metal plating.

 Examples of polymer-type conductive inks are those in which conductive fine particles such as silver powder, gold powder, platinum powder, aluminum powder, palladium powder, rhodium powder, carbon powder (carbon black, carbon nanotube, etc.) are blended in the resin composition Is mentioned.

If a thermosetting resin is used as the resin composition, the polymer-type conductive ink can form a coating film that forms the first conductor 22 or the second conductor 21 at 200 ° C. or less, for example, about 100 to 150 ° C. It becomes a curable type. The electric path of the coating film forming the first conductor 22 or the second conductor 21 is formed when the conductive fine particles constituting the coating film contact each other, and the resistance value of the coating film is on the order of 10 ⁻⁵ Ω · cm. It is.
Further, as the polymer type conductive ink in the present invention, known ones such as a photocuring type, a penetrating drying type, and a solvent volatilization type are used in addition to the thermosetting type.

 The photocurable polymer type conductive ink contains a photocurable resin in the resin composition and has a short curing time, so that the production efficiency can be improved. Examples of the photocurable polymer type conductive ink include, for example, a thermoplastic resin alone, or a conductive resin fine particle in a blend resin composition of a thermoplastic resin and a crosslinkable resin (particularly, a crosslinkable resin made of polyester and isocyanate). 60% by mass or more and a polyester resin of 10% by mass or more, that is, a solvent volatile type or a crosslinked / thermoplastic combined type (however, the thermoplastic type is 50% by mass or more), heat Polyester resin alone or a blend resin composition of a thermoplastic resin and a crosslinkable resin (especially a crosslinkable resin composed of polyester and isocyanate) is blended with 10% by mass or more of a polyester resin, that is, a crosslinked type or A cross-linking / thermoplastic combination type is preferably used.

Moreover, as conductive foil which makes the 1st conductor 22 or the 2nd conductor 21, copper foil, silver foil, gold foil, platinum foil, aluminum foil, etc. are mentioned.
Furthermore, examples of the metal plating that forms the first conductor 22 or the second conductor 21 include copper plating, silver plating, gold plating, and platinum plating.

 Examples of the conductor constituting the short-circuit line 25 and the power supply line 26 include those obtained by curing the polymer-type conductive ink and the metal plating described above.

 The IC chip 27 is not particularly limited, and information can be written and read out in a non-contact state via the first conductor 22, the second conductor 21, and the second conductor 41. A non-contact IC tag Any non-contact type IC label or non-contact type IC card can be used as long as it can be applied to RFID media.

 The insulating resin constituting the insulating portion 28 is not particularly limited, and examples thereof include phenol resin, epoxy resin, polyurethane curable resin, urea resin, melamine resin, and acrylic reaction resin.

 The base material 42 is not particularly limited. For example, from the polyester resin such as polyethylene terephthalate (PET), glycol-modified polyethylene terephthalate (PET-G), polybutylene terephthalate (PBT), polyethylene naphthalate (PEN). Base material made of polyolefin resin such as polyethylene (PE), polypropylene (PP); Base material made of polyfluorinated ethylene resin such as polyvinyl fluoride, polyvinylidene fluoride, polytetrafluoroethylene; Nylon 6, Base material made of polyamide resin such as nylon 6,6; Base material made of vinyl polymer such as polyvinyl chloride (PVC), ethylene-vinyl acetate copolymer, polyvinyl alcohol, vinylon; Polymethyl methacrylate, polymethacrylic acid ethyl Base materials made of acrylic resins such as polyethyl acrylate and polybutyl acrylate; base materials made of polystyrene; base materials made of polycarbonate (PC); base materials made of polyarylate; base materials made of polyimide; A base material made of paper such as thin paper, glassine paper, and sulfuric acid paper is used.

The third conductor 41 is formed on one surface of the base material 42 using a polymer-type conductive ink in a predetermined pattern by a printing method such as screen printing or inkjet printing, or by etching the conductive foil. Or metal plating.
As the 3rd conductor 41, the thing similar to the above-mentioned 1st conductor 22 or the 2nd conductor 21 is used.

 In the present embodiment, the case where the third conductor 41 is formed on one surface of the base material 42 by polymer-type conductive ink, conductive foil, metal plating, or the like is illustrated, but the present invention is limited to this. It is not a thing. In this invention, the 3rd conductor may be comprised from metal plates, such as aluminum and copper. When the third conductor is made of a metal plate, the second antenna part may be composed only of the third conductor.

When the non-contact type data receiving / transmitting body 10 is affixed to a metal article, the first conductor 22 of the inlet 20 is disposed on the metal article side (in contact with the metal article), and the second conductor 21 of the inlet 20 The third conductor 41 of the two antenna unit 40 is arranged on the opposite side to the metal article (so as not to contact the metal article). In this case, since the first conductor 22 arranged on the metal article side suppresses the influence of the metal article, the second conductor 21 arranged on the opposite side to the metal article can communicate.
Alternatively, when the non-contact type data receiving / transmitting body 10 is affixed to a metal article, the second conductor 21 of the inlet 20 is disposed on the metal article side (in contact with the metal article), and the first conductor 22 of the inlet 20 is placed. And the 3rd conductor 41 of the 2nd antenna part 40 is arrange | positioned on the opposite side to a metal article (it does not contact a metal article). In this case, since the second conductor 21 arranged on the metal article side suppresses the influence of the metal article, the first conductor 22 arranged on the opposite side to the metal article can communicate.

According to the non-contact type data receiving / transmitting body 10 of the present embodiment, as described above, the first conductor 22 or the second conductor 21 disposed on the metal article side is affected by the metal article even when the metal article is attached. The first conductor 22 or the second conductor 21 disposed on the side opposite to the metal article can be communicated. As a result, since communication using the third conductor 41 for booster is possible, the communication distance can be increased with respect to all directions even in a state where the booster is attached to a metal article. In addition, the first conductor 22 has a continuous planar shape that covers substantially the entire area of the one surface 24 a of the dielectric substrate 24, and the second conductor 21 has a continuous planar shape that covers the substantially entire area of the other surface 24 b of the dielectric substrate 24. Since the third conductor 41 has a continuous planar shape provided on the entire surface of the base material 42, the present embodiment can be achieved by changing the size (length, width) of the third conductor 41. It is possible to adjust the resonance frequency and the communication distance of the non-contact type data receiving / transmitting body 10. Further, the inductance (L) of the third conductor 41 can be adjusted by changing the length of the third conductor 41, and the capacitance ( Since C) can be adjusted, the inductance and the capacitance can be adjusted individually and easily. In addition, since the radiation surface of the first conductor 22 or the radiation surface of the second conductor 21 and the radiation surface of the third conductor 41 are magnetically coupled to each other, the third conductor 41, the first conductor 22 or the second conductor The input efficiency to 21 can be improved. In other words, since the first conductor 22 or the second conductor 21 and the third conductor 41 are planar, the communication distance can be made longer than that of the linear conductor.
Further, when the inlet is configured to include the first antenna portion and the second antenna portion that is a booster antenna, the size of the inlet increases, resulting in an increase in cost. The non-contact type data transmitting / receiving body 10 of the present embodiment has a configuration in which a small inlet 20 provided with a first antenna portion 23 and a second antenna portion 40 having a simple structure that can be manufactured at low cost. Therefore, the inlet can be manufactured at a lower cost compared to the case where the inlet has a configuration including the first antenna portion and the second antenna portion. Moreover, since the 3rd conductor 41 has comprised the simple structure formed in the one surface whole surface of the base material 42, the 3rd conductor 41 can be formed at low cost.

(2) Second Embodiment FIG. 3 is a schematic perspective view showing a second embodiment of the contactless data receiving / transmitting body of the present invention. FIG. 4 is a schematic view showing an inlet constituting the second embodiment of the non-contact type data receiving / transmitting body of the present invention, (a) is a cross-sectional view taken along line BB in FIG. 3, and (b) is A top view and (c) are bottom views.
In FIG. 3, the same components as those of the non-contact type data receiving / transmitting body 10 shown in FIG.
The non-contact type data receiving / transmitting body 50 according to the present embodiment includes an inlet 60 having a first antenna portion 62 composed of a planar first conductor 61, and is separated from the first antenna portion 62 of the inlet 60 in the vicinity of the inlet 60. In addition, the booster second antenna unit 40 includes a planar third conductor 41 arranged along the longitudinal direction of the first antenna unit 62 (inlet 60).
The first antenna portion 62 and the second antenna portion 40 of the inlet 60 are separated from each other when the first conductor 61 constituting the inlet 60 and the third conductor 41 constituting the second antenna portion 40 are directly connected. Say not connected.

 The inlet 60 includes a rectangular dielectric base 63, a first conductor 61 provided on one surface 63a of the dielectric base 63, and a second conductor 64 provided on the other surface 63b of the dielectric base 63. The first antenna unit 62 is composed of an IC chip 65 electrically connected to the first antenna unit 62.

The first conductor 61 has a discontinuous region in the vicinity of the feeding points 61 a and 61 a electrically connected to the IC chip 65, and has a substantially rectangular shape formed over the entire surface 63 a of the dielectric base 63. I am doing. That is, the first conductor 61 has discontinuous regions 61b and 61b in which the one surface 63a of the dielectric base 63 is exposed in the vicinity of the feeding points 61a and 61a, but the other portions are the dielectric base 63. And has a continuous planar (substantially rectangular) region covering substantially the entire surface 63a.
The second conductor 64 has a rectangular shape formed over the entire other surface 63 b of the dielectric base 63. That is, the second conductor 64 has a continuous planar (substantially rectangular) region covering almost the entire area of the other surface 63 b of the dielectric base 63.

Further, the inlet 60 is provided with an insulating portion 66 made of an insulating resin that covers the IC chip 65 and its vicinity in order to protect the IC chip 65 from heat and moisture.
The vicinity of the IC chip 65 refers to the feeding points 61a and 61a of the first conductor 61 connected to the IC chip 65, and the feeding points 61a and 61a of the IC chip 65 and the first conductor 61 in the dielectric base 63. It is the peripheral part.

The first antenna unit 62 is not for directly communicating with the information writing / reading device, but for performing electrical connection with the second antenna unit 40 by electromagnetic induction. That is, the second antenna unit 40 directly communicates with the information writing / reading device.
Further, when the non-contact type data receiving / transmitting body 50 is attached to a metal article, the first antenna unit 62 is disposed on the metal article side (so as to be in contact with the metal article), and the first conductor 62 61 is arranged on the opposite side of the metal article (so as not to contact the metal article), so that the second conductor 64 arranged on the metal article side suppresses the influence of the metal article, and the non-contact type data receiver / transmitter 50 to enable communication.

Although the space | interval (distance) between the inlet 60 and the 2nd antenna part 40 is not specifically limited, It adjusts suitably according to the target communication distance.
Further, the radiation surface (surface parallel to one surface 63 a of the dielectric base 63) 61 c of the first conductor 61 constituting the first antenna portion 62 and the radiation surface (base) of the third conductor 41 constituting the second antenna portion 40. The inlet 60 and the second antenna portion 40 are arranged so that a surface 41a parallel to one surface of the material 42 is arranged on the same surface.

 Further, in the present embodiment, the case where the dielectric base material 63 constituting the inlet 60 and the base material 42 constituting the second antenna unit 40 are separate is illustrated, but the present invention is limited to this. It is not a thing. In the present invention, the dielectric base material constituting the inlet and the base material constituting the second antenna portion may be the same base material. When the same base material is used in this way, the first conductor, the second conductor, and the third conductor are provided apart from each other.

As the dielectric constituting the dielectric base 63, the same one as the dielectric base 23 described above is used.
As the 1st conductor 61 and the 2nd conductor 64, the thing similar to the above-mentioned 1st conductor 22 and the 2nd conductor 21 is used.
As the IC chip 65, the same one as the above-described IC chip 27 is used.
As the insulating part 66, the thing similar to the above-mentioned insulating part 28 is used.

 When the non-contact type data receiving / transmitting body 50 is affixed to a metal article, the second conductor 64 of the inlet 60 is disposed on the metal article side (in contact with the metal article), and the first conductor 61 of the inlet 60 The third conductor 41 of the two antenna unit 40 is arranged on the opposite side to the metal article (so as not to contact the metal article). In this case, since the second conductor 64 arranged on the metal article side suppresses the influence of the metal article, the first conductor 61 arranged on the opposite side to the metal article can communicate.

 According to the non-contact type data receiving / transmitting body 50 of the present embodiment, as described above, the second conductor 64 disposed on the metal article side suppresses the influence of the metal article even when attached to the metal article, and the metal article The first conductor 61 disposed on the side opposite to the first side can communicate. As a result, since communication using the third conductor 41 for booster is possible, the communication distance can be increased with respect to all directions even in a state where the booster is attached to a metal article. Further, the first conductor 61 has a continuous planar shape covering almost the entire surface 63 a of the dielectric base 63, and the third conductor 41 has a continuous planar shape provided on the entire surface of the base 42. Therefore, by changing the size (length, width) of the third conductor 41, it is possible to adjust the resonance frequency and the communication distance of the contactless data receiving / transmitting body 50 of the present embodiment. Further, the inductance (L) of the third conductor 41 can be adjusted by changing the length of the third conductor 41, and the capacitance ( Since C) can be adjusted, the inductance and the capacitance can be adjusted individually and easily. In addition, since the radiation surface of the first conductor 61 and the radiation surface of the third conductor 41 are magnetically coupled to each other, the input efficiency from the third conductor 41 to the first conductor 61 can be improved. In other words, since the first conductor 61 and the third conductor 41 are planar, the communication distance can be made longer than that of the linear conductor. Furthermore, since the first conductor 61 has a simple structure formed almost over the entire surface 63a of the dielectric base 63, the first conductor 61 can be formed at low cost. In addition, since the second conductor 64 has a simple structure formed almost over the other surface 63b of the dielectric base 63, the second conductor 64 can be formed at low cost.

(3) Third Embodiment FIG. 5 is a schematic perspective view showing a third embodiment of the contactless data receiving / transmitting body of the present invention.
In FIG. 5, the same components as those of the non-contact type data receiving / transmitting body 10 shown in FIG.
The non-contact type data receiving / transmitting body 70 of the present embodiment is different from the non-contact type data receiving / transmitting body 10 of the above-described first embodiment in that the radiation surface of the second conductor 21 forming the first antenna portion 22 is also different. (A surface parallel to the other surface 24b of the dielectric base material 24) 21a and a radiation surface (a surface parallel to one surface of the base material 42) 41a of the third conductor 41 constituting the second antenna portion 40 are orthogonal to each other. In addition, the inlet 20 and the second antenna unit 40 are disposed.
Moreover, although the space | interval (distance) between the inlet 20 and the 2nd antenna part 40 is not specifically limited, It adjusts suitably according to the target communication distance.

 In the present embodiment, the case where the radiation surface 21a of the second conductor 21 and the radiation surface 41a of the third conductor 41 are orthogonal to each other is illustrated, but the present invention is not limited to this. In the present invention, the radiation surface of the first radiation conductor, the extension surface of the radiation surface of the first radiation conductor, the radiation surface of the second radiation conductor or the extension surface of the radiation surface of the second radiation conductor, It is only necessary that the radiation surface of the third radiation conductor or the extended surface of the radiation surface of the third radiation conductor intersect. Specifically, the radiation surface of the first radiation conductor and the radiation surface of the third radiation conductor, the radiation surface of the first radiation conductor and the extension surface of the radiation surface of the third radiation conductor, the extension surface of the radiation surface of the first radiation conductor, The radiation surface of the third radiation conductor or the extension surface of the radiation surface of the first radiation conductor and the extension surface of the radiation surface of the third radiation conductor may cross each other. Further, the radiation surface of the second radiation conductor and the radiation surface of the third radiation conductor, the radiation surface of the second radiation conductor and the extension surface of the radiation surface of the third radiation conductor, the extension surface of the radiation surface of the second radiation conductor and the third radiation surface. The radiation surface of the radiation conductor or the extension surface of the radiation surface of the second radiation conductor and the extension surface of the radiation surface of the third radiation conductor may cross each other. That is, a radiation surface of the first radiation conductor, an extension surface of the radiation surface of the first radiation conductor, a radiation surface of the second radiation conductor or an extension surface of the radiation surface of the second radiation conductor, and the third radiation conductor The angle at which the radiation surface or the extended surface of the third radiation conductor intersects is not limited to a right angle (90 °), but is an acute angle (less than 90 °) or an obtuse angle (greater than 90 °). May be.

 According to the non-contact type data transmitting / receiving body 70 of the present embodiment, in addition to the effects of the first embodiment described above, the radiation surface 21a of the second conductor 21 and the radiation surface 41a of the third conductor 41 are further provided. By disposing the inlet 20 and the second antenna unit 40 so as to be orthogonal to each other, the radiation surface 41a of the third conductor 41 can be moved away from the metal article on which the inlet 20 is installed. Thereby, the phenomenon in which the magnetic flux from the third conductor 41 cancels out the magnetic flux due to the reverse magnetic field from the surface on the first conductor 22 side of the inlet 20 can be suppressed, and compared with the first embodiment, the efficiency Thus, power can be supplied to the inlet 20. In addition, since the inlet 20 and the second antenna portion 40 are arranged so that the radiation surface 21a of the second conductor 21 and the radiation surface 41a of the third conductor 41 are orthogonal to each other, compared to the first embodiment. The communication capability of the inlet 20 can be improved without limiting the arrangement of the third conductor 41 with respect to the inlet 20.

 EXAMPLES Hereinafter, although an Example demonstrates this invention further more concretely, this invention is not limited to a following example.

[Experimental Example 1]
The inlet shown in FIGS. 1 and 2 was produced.
In this experimental example, the length of the first conductor constituting the inlet shown in FIGS. 1 and 2 was 35 mm, and the width of the first conductor was 12 mm. Further, the length of the second conductor constituting the inlet was 33 mm, and the width of the second conductor was 10 mm.
This inlet was placed on a 20 cm × 30 cm stainless steel plate, and the communication distance at a frequency of 860 to 1000 MHz was measured with an RFID UHF measurement / inspection machine (trade name: Tagformance lite, manufactured by Voyantic).
The results are shown in FIG.

[Experiment 2]
The non-contact type data receiving / transmitting body shown in FIGS. 1 and 2 was produced.
In this experimental example, the length of the first conductor constituting the inlet shown in FIGS. 1 and 2 was 35 mm, and the width of the first conductor was 12 mm. Further, the length of the second conductor constituting the inlet was 33 mm, and the width of the second conductor was 10 mm. Moreover, the length of the 3rd conductor which comprises a 2nd antenna part was 130 mm, and the width | variety of the 3rd conductor was 13.5 mm.
In addition, the inlet and the second antenna portion are spaced apart so that the distance between the inlet and the second antenna portion is 1 mm, and the radiation surface of the first conductor and the radiation surface of the third conductor are arranged on the same plane. Arranged.
This non-contact type data transmitter / receiver is placed on a 20 cm × 30 cm stainless steel plate, and the communication distance at a frequency of 860 to 1000 MHz is measured by an RFID UHF measuring / inspecting machine (trade name: Tagformance lite, manufactured by Voyantic). did.
The results are shown in FIG.

[Experiment 3]
The non-contact type data receiving / transmitting body shown in FIG. 5 was produced.
In this experimental example, the length of the first conductor constituting the inlet shown in FIG. 5 was 35 mm, and the width of the first conductor was 12 mm. Further, the length of the second conductor constituting the inlet was 33 mm, and the width of the second conductor was 10 mm. Moreover, the length of the 3rd conductor which comprises a 2nd antenna part was 130 mm, and the width | variety of the 3rd conductor was 13.5 mm.
In addition, the inlet and the second antenna portion are spaced apart so that the distance between the inlet and the second antenna portion is 3 mm, and the radiation surface of the first conductor and the radiation surface of the third conductor are orthogonal to each other.
This non-contact type data transmitter / receiver is placed on a 20 cm × 30 cm stainless steel plate, and the communication distance at a frequency of 860 to 1000 MHz is measured by an RFID UHF measuring / inspecting machine (trade name: Tagformance lite, manufactured by Voyantic). did.
The results are shown in FIG.

From the result of FIG. 6, the communication distance can be approximately doubled in Experimental Example 2 in which the radiation surface of the first conductor and the radiation surface of the third conductor are arranged on the same plane as in Experimental Example 1 with only the inlet. I understood. Furthermore, it was found that the communication distance can be increased by about four times in Experimental Example 3 in which the radiation surface of the first conductor and the radiation surface of the third conductor are orthogonal to Experimental Example 1 having only the inlet.
In addition, it has been found that Experimental Examples 2 and 3 can increase the communication distance at a frequency of 860 to 920 MHz, where the communication distance is very short in Experimental Example 1.
When the booster antenna (conductor) is arranged, the resonance frequency shifts to the low frequency side, but the resonance frequency can be adjusted by changing the size (length, width) of the conductor. is there.

DESCRIPTION OF SYMBOLS 10 ... Non-contact type data transmission / reception body, 20 ... Inlet, 21 ... 2nd conductor, 22 ... 1st conductor, 23 ... 1st antenna part, 24 ... Dielectric base 25 ... short-circuit wire 26 ... feeding wire 27 ... IC chip 28 ... insulating portion ... 40 second antenna portion 41 ... third conductor , 42 ... base material, 50 ... non-contact type data transmitting / receiving body, 60 ... inlet, 61 ... first conductor, 62 ... first antenna section, 63 ... dielectric base 64, second conductor, 65, IC chip, 66, insulating part, 70, non-contact type data receiving / transmitting body.

Claims (4)

 A dielectric substrate, an IC chip provided on the dielectric substrate, and a discontinuous region in the vicinity of a feeding point electrically connected to the IC chip, and on one surface of the dielectric substrate A planar first conductor formed, and a first antenna portion that is provided on the other surface side of the dielectric substrate and is configured to be spaced apart from the first conductor and opposed to the planar second conductor. A second antenna portion having a planar third conductor disposed in the vicinity of the first antenna portion and spaced apart from the first antenna portion and along the longitudinal direction of the first antenna portion; A non-contact type data receiving / transmitting body comprising:  The contactless data transmission / reception according to claim 1, wherein the radiation surface of the first conductor or the radiation surface of the second conductor and the radiation surface of the third conductor are arranged on the same surface. body.  The radiation surface of the first radiation conductor, the extension surface of the radiation surface of the first radiation conductor, the radiation surface of the second radiation conductor or the extension surface of the radiation surface of the second radiation conductor, and the radiation of the third radiation conductor The contactless data receiving / transmitting body according to claim 1, wherein a surface or an extended surface of the radiation surface of the third radiation conductor intersects.  A short-circuit line that penetrates the dielectric base material and connects the first conductor and the second conductor, and penetrates the dielectric base material and faces the short-circuit line apart from the first conductor, The non-contact type data receiving / transmitting body according to claim 1, further comprising: a power supply line that connects the second conductor and feeds power to the first conductor.

Images