TWI334670B - - Google Patents

Description

1334670 IX. Description of the Invention: [Technical Field] The present invention relates to a sheet for wireless communication using an electric field type antenna element in the vicinity of a portion having a conductive and electrically-conserving material 枓And an electronic information transmission device having this. In the electric field type antenna element of the present invention, the electric field type antenna element which can be used for the communication of the helmet type in the radio wave mode _ L ^ j is a function of the magnetic field type antenna, and can also be a switchable magnetic field type antenna [ Prior art] Figure 19 is a schematic diagram showing the prior art

• A section view of the thin iron 1. RFID (Radio Frequency IDentificationu m m 〇n) is used for automatic identification of solids = system ' basically has a reader and a responder. This system uses iron 1 as a responder. The tag 1 has a coil-shaped loop antenna 2, A is a magnetic field type that detects magnetic lines of force, and an integrated circuit (IC) 3 for making wireless communication of the antenna 2.樟繇 沾 从 从 从 ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ Information. The label i is used for merchandise management, for example, on a product, and is used to prevent theft of the product and the storage status. When the label 1 is adhered to a metal product or the like, if a member 4 having a portion containing a conductive material exists in the vicinity of the antenna 2, magnetic lines of force forming a magnetic field of the electromagnetic wave signal transmitted by the antenna 2 will follow the member. Part of the surface of the conductive material containing 4 flows. In this case, the eddy current will be induced to the portion of the member 4 containing the conductive material, and the loss of the electromagnetic current energy is caused by the loss of the hole current 115092.doc 1334670, resulting in a loss. Such as on

The amount of this will cause a loss, and the signal of the electromagnetic wave will be greatly attenuated, making it impossible for wireless communication. In addition, since the induced eddy current machine causes the magnetic field opposite to the magnetic field of the communication with the tag to be generated, the magnetic field is also eliminated. This phenomenon also makes it impossible for the tag 1 to communicate wirelessly. Therefore, the label 1 cannot be used in the vicinity of the member 4 having the portion containing the conductive material. In addition, the resonance frequency of the standard 1 is shifted by the influence of the component 4, and the communication cannot be performed at the original communication frequency, which ultimately makes the wireless communication of the tag 1 more difficult. Circular 2ϋ outlines other existing technologies. The Ding Zhiyi sign 1 is similar to the label of Fig. 19, and the same reference numerals are given to the corresponding parts, and only the different structures are explained. The structure of the standard iron 1 of FIG. 2 is provided with the member 4' in order to solve the problem of the label of FIG. 19, and the object mouth and the magnetic absorption board 7 which are attached to the antenna 2 are disposed. Between the two. The upper = magnetic gas absorption plate 7 is a sheet having a composite relative magnetic permeability, which is composed of a high magnetic permeability material such as an oxidized magnet and a carbon-based iron, that is, a composite material having a high relative magnetic permeability. The magnetic permeability and the right 眚 ,, ... U real part and imaginary part, when the real part becomes high, the composite relative permeability becomes higher. The gate of the ancestors "eight composite relative magnetic permeability:,, complex σ relative permeability The real part of the middle is also high. When the magnetic field is in the composite relative permeability, the material of the real number of the equivalent magnetic sheep in the field is passed through the member. In the "'tag 1Α, the magnetic field absorbing plate 7 of the magnetic field antenna 2 by means of the magnetic field line is provided, and the member 4 having the conductive material is provided, and the member has the portion 4 of the conductive material. In the vicinity of the member 4 including the guide 115092.doc: material, the magnetic flux in the member 4 having the portion containing the electric steep material can be reduced, and the attenuation of the magnetic field energy can be suppressed to enter the wireless communication. The label 1A such as the upper number is as shown in Patent Document 1. 'The above-mentioned conventionally developed for the metal-corresponding technology of antenna communication', and the sheet with relative magnetic permeability is mainly used to improve the inductance of the antenna by the communication environment improvement effect of the sheet, and the electromagnetic induction method is used for communication. The effect that can be obtained in the case of using a coil antenna of a magnetic field type antenna. [Patent Document 1] JP-A-2000 113142 [Problem to be Solved by the Invention] In the case of the coil antenna specific magnetic field antenna 2 when electromagnetic induction is used, as in the case of the tag 1 A shown in FIG. In order to prevent magnetic field leakage, wireless communication can be performed in the vicinity of the member 4 having the conductive material #, but a structure for preventing magnetic field leakage as described above is used in the case of using an electric field type antenna for detecting an electric force line. No effect was observed and was not considered for adoption. An object of the present invention is to provide a sheet body and an antenna device and an electronic device therefor, which are capable of facilitating wireless communication in the vicinity of a member having a portion including a conductive material, using an electric field type antenna element. The sheet has a structure in which an electric field type antenna element is used for wireless communication in the vicinity of a member having a portion including a conductive material, and is provided in the antenna element and having a portion containing a conductive material = 115092.doc ^ Between the members of ^4070 or in the vicinity of the antenna element, the reduction in the wheel-in impedance of the antenna element caused by the member having the portion containing the conductive material is suppressed. According to the present invention, the sheet is provided between the electric field type antenna element and the member having the portion containing the conductive material or in the vicinity of the antenna element, when the antenna t7 is placed near the member having the portion containing the conductive material The decrease in the input impedance of the antenna element caused by the member having the portion including the conductive material can be suppressed. Φ If the sheet is not used, the electric field type antenna element will hardly operate in the vicinity of the member having the portion containing the conductive material, and cannot be used for wireless communication. The reason for this is, for example, that the input impedance of the electric field type antenna element is largely lowered. The reduction in input impedance is caused by a high frequency short shot between the antenna element and the member having the portion containing the conductive material. This phenomenon is not related to eddy currents, but is a phenomenon unique to electric field antennas. When the input impedance of the electric field type antenna element becomes small, it will be differentially opposed to the impedance of the communication mechanism using the electric field type antenna element, and the signal will not be received between the electric field type antenna element and the communication means. When the sheet member is disposed in the vicinity of the member having the portion including the conductive material, the sheet can suppress the decrease in the input impedance of the antenna element: therefore, by using the sheet, even if the electric field type antenna element is used, it has conductivity. Wireless communication is also possible smoothly in the vicinity of the components of the material. Further, the sheet of the present invention is characterized in that it is provided on the antenna element and the portion having the conductive material when the wireless communication is performed in the vicinity of the member having the portion including the conductive material using the electric field type antenna element. Between the components or in the vicinity of the antenna element, the suppression has a conductivity of 115092.doc. The loss of electromagnetic energy caused by the components of the file. According to the present invention, since the sheet is provided between the electric field type antenna element and the member having the portion including the conductive material or in the vicinity of the antenna element, when the antenna is disposed in the vicinity of the member having the portion containing the conductive material, The loss of electromagnetic energy caused by a member having a portion containing a conductive material is suppressed. The sheet antenna is not used on the right side, and the electric field type antenna element hardly operates in the vicinity of the member having the portion containing the conductive material, and cannot be used for wireless communication. The reason can be explained by the fact that although it is an electric field type antenna element, electromagnetic energy is consumed due to the fact that the material is generated by the member having the portion containing the conductive material. On a member having a portion containing a conductive material, the current of the non-eddy current is induced by the high frequency short circuit, the resistance loss when the current is generated is changed to the thermal energy, and the reverse magnetic field due to the current is brought about. The communication is eliminated by the magnetic field of the electromagnetic wave, resulting in loss of electromagnetic energy. In response to the above-described phenomenon, when the antenna element is disposed in the vicinity of the member having the portion including the conductive material, the sheet can suppress the loss of electromagnetic energy. The reason is that, firstly, it is difficult to generate a short circuit, and the magnetic field distribution is concentrated in the vicinity of the electric field type antenna element of the conductor portion where the current is generated and the member having the portion containing the conductive material (ie, the sheet due to the magnetic permeability of the sheet). Inside the body), and the magnetic field is not attenuated, so that the basin passes 'to prevent the loss of electromagnetic energy. In addition, the aforementioned impedance adjustment (integration) also plays an important role in preventing electromagnetic energy loss. Therefore, by using the sheet crucible, the electric field type antenna element can be used for wireless communication in the vicinity of the member having the portion enclosing the conductive material. Further, the characteristic antenna element of the present invention includes a dipole antenna and a monopole antenna. 115092.doc -10- wire, seed 0 loop antenna or at least the pole body of the antenna on which the reactance structure is mounted, for example, a simple structure can be used for the benefit record H. Use ', wide-line communication near the components of the p-knife. First, by the combination of the dipole antenna and the sheet, it is possible to reduce the size of the piece. This is due to the high degree of interaction between the real part of the sheet relative to the ratio 2 and the real part of the composite relative permittivity, and the effect of the wavelength shortening, so that it can be more integrated than the existing products. The reason. The dipole antenna is linear, and the bent and bent portions can be freely shaped. For example, there are horseshoe shapes and the like. The full length is λ/2. For example, the length of 950 为 is about 15.8 (10), and the wavelength shortening effect brought about by the sheet can be a linear component of about 34 G (10), and the bending can be about 2 to 3 em. The size inside. It is still possible to make it even smaller. The monopole antenna is supplied between the single-sided component of the dipole antenna and the grounding plate, so the total length of the component can be λ/4, which is more compact. If it is a loop antenna, when the whole circumference is close to the 丨 wavelength, two arrays can be approximated. The configuration of a half-wavelength dipole antenna is considered to be an electric field type antenna element. These antennas can also smoothly perform wireless communication in the vicinity of the communication member. Further, these antenna elements may be provided with a resonance integration portion (reactance element integration portion) composed of an inductance (L) component and a capacitor (C) component, or may not be mounted. Further, the feature of the present invention is that the frequency of the electromagnetic wave used for wireless communication is included in the range of 300 MHz or more and 3 GHz or less. GHz according to the present invention 'by utilizing the frequency above 3 〇〇 MHz 300 115092.doc 1334670 The electromagnetic wave in the range below can achieve a long distance wireless communication distance with a small antenna. The range of 300 MHz or more and 300 GHz or less includes the UHF band (300 MHz to 3 GHz) and the SHF band (3 GHz to 30 GHz). EHF band (30 GHz to 300 GHz). Further, the present invention is characterized in that the frequency of the electromagnetic wave used for wireless communication is included in the range of 860 MHz or more and 1 GHz or less. According to the present invention, since the frequency of the electromagnetic wave used for wireless communication is included in the range of 860 MHz or more and 1 GHz or less, it is applicable to communication between relatively separate devices. Furthermore, the electromagnetic wave used for wireless communication has a small wavelength, which enables communication using a small antenna of an electric field type. Further, the present invention is characterized in that the frequency of electromagnetic waves used for wireless communication is included in the 2.4 GHz band. According to the present invention, since the frequency of electromagnetic waves used for wireless communication is included in the 2.4 GHz band, it is applicable to communication between relatively separate devices. Furthermore, the electromagnetic wave used for wireless communication has a small wavelength, and it is possible to realize communication using a small antenna of an electric field type. Further, the sheet of the present invention is characterized in that it has a shielding layer which is a magnetic material. According to the invention, the sheet used between the antenna element and the member having the portion containing the conductive material or in the vicinity of the antenna element is provided with a shield layer which is a magnetic body. The shield layer of the magnetic body can effectively suppress the impedance reduction caused by the member having the portion containing the conductive material existing in the vicinity of the electric field type antenna element. In a member having a portion including a conductive material in the vicinity of the antenna element, the impedance is lowered by a short-circuit induced current at a high frequency, and 115092.doc -12· 1334670 is an electric field type antenna, but a shield layer containing a magnetic body exists. Can suppress the impedance reduction. When the impedance adjustment has a frequency characteristic to the magnetic characteristics of the magnetic body, it corresponds to only a specific frequency. Further, the present invention is characterized in that it has a shielding layer which is used in the frequency of electromagnetic waves used for line communication, and the real part of the composite relative magnetic permeability is equal to the imaginary part of the magnetic permeability. " According to the invention, the shielding layer is provided on the sheet, and the shielding layer is at the frequency of the electromagnetic wave of the W:, ., line communication; the composite relative magnetic permeability is actually more than the imaginary part of the composite relative magnetic permeability, so For μ·^μ". Thereby, the real part μ′ of the composite relative magnetic permeability showing the ease of concentration of the magnetic field is larger than the imaginary number of the composite relative magnetic permeability of the magnetic field by thermal conversion (loss), and it is possible to suppress the portion having the conductive material: the antenna , the input impedance is reduced, and can be more efficient = . A sheet having a loss of electromagnetic energy caused by a member of a portion of the electrically conductive material. Furthermore, the composite relative magnetic permeability of the shielding layer is μ·' and the composite relative capacitance is _ _ _ _ 上 〇 丁 丁 丁 丁 丁 丁 丁 丁 丁 丁 丁 丁 丁 丁 丁 丁 丁 丁 丁 丁 丁 丁 天线 天线 天线 天线 天线 天线 天线 天线 天线 天线Miniaturization of the antenna element. In addition, the present invention is characterized in that it has a shielding layer which is used for electromagnetic waves used for the communication of the surplus line, and the real relative number of the composite relative magnetic permeability is 5 or more, and the magnetic permeability is lost. Item ta (=μ"/μ,) is! the following. According to the present invention, a shielding layer is provided on the sheet, and the shielding layer is electromagnetically oscillating at a frequency of chopping, the real part of the relative magnetic permeability is μ, and the magnetic permeability loss item is printed as follows. . Thereby, the spring element is disposed in the vicinity of the member having the portion containing the conductive material: II 115092.doc 1334670, which suppresses the decrease of the input impedance of the line element caused by the member having the portion containing the conductive material, #幻降降And having a conductive material

A sheet of the loss of electromagnetic energy caused by the components. 〇P line·==Characteristics of the invention, in which a shielding layer is provided, which is used in the real part μ of the composite relative magnetic permeability in the frequency of a chopper or higher, and is upper, and the magnetic permeability loss term αηδμ is 〇 · 5 or less. According to the present invention, the shield of the electromagnetic wave shielding layer of the wireless communication is attached to the frequency for the wave, the real relative magnetic permeability is 2 〇 or more, and the magnetic permeability loss term _ is 05 or less. Thereby, the heart is placed in the vicinity of the member having the portion containing the conductive material for two days, and the resistance of the member having the portion containing the conductive material is suppressed, and the electromagnetic energy contained by the conductive calf is contained. Loss of the sheet. The feature of the post-launch is the shield layer, which is used for the electromagnetic waves used for |wire communication, ., , and 2〇. In the frequency, the real part ε· of the composite relative permittivity is according to the present invention, and the frequency of the electromagnetic wave of the thin κ wireless communication has a layer of 'shield' which is used for 2. As described above, the vicinity of the member of the real part of the composite relative permittivity is such that the structure having the portion containing the conductive material can suppress the decrease in the input impedance of the antenna element having the scoop of the conductive material. And a sheet of the magnetic energy that is lost by the components of the electrical material. The umbilical ice I page is full of electromagnetic moon „.. , the antenna can be miniaturized due to the short-wavelength effect. 'The feature of the invention' is a wound shielding layer, which is used for H5092.doc -14· In the frequency of the electromagnetic wave of the 4670 line communication, the imaginary part s" of the composite relative permittivity is 300 or less. According to the present invention, the sheet is provided with a shielding layer which is attached to the frequency of the electromagnetic wave used for wireless communication. The imaginary part ε·. of the composite relative permittivity is 300 or less. Thereby, when the antenna element is disposed in the vicinity of the member having the portion including the conductive material, it is possible to obtain a member capable of suppressing the portion having the conductive material. A reduction in the input impedance of the antenna element and a loss of electromagnetic energy caused by a member having three portions of the conductive material. Further, the present invention is characterized in that it has a conductive conductor layer. Since the sheet body of the present invention has a conductor layer, the electromagnetic wave frequency used in the above-described wireless communication is adjusted in a state in which a conductor layer formed of a conductive material exists in the vicinity of the antenna element. The real part μ of the composite relative permeability of the shield layer, and the real part of the imaginary part μ" or the composite relative permittivity can achieve good characteristics of the shield layer. Therefore, in the vicinity of the member having the part of the package material, Further, the present invention is characterized in that the shielding layer is a magnetic material, a material composed of at least any one of a soft magnetic metal, a soft magnetic metal oxide, a magnetic metal, and a magnetic metal oxide, or a material thereof. According to the present invention, the shielding layer functions as a soft magnetic metal, a material comprising or consisting of at least any one of a soft magnetic metal oxide, a magnetic metal, and a magnetic metal oxide. Therefore, the shielding layer can be made only of such materials. And forming or dispersing the materials into the bonding material. With such a structure, a shielding layer capable of obtaining the aforementioned characteristics can be formed. Therefore, a sheet which achieves the aforementioned excellent effects of 115092.doc -15-1334670 can be realized.另外 In addition to the characteristics of the shielding layer of the present invention, which comprises 100 parts by weight of the organic polymer, 1 part by weight The upper 1500 weight is selected from the following: θ is selected from the group consisting of ferrite and sputum. The π contains the selected ferrite and the iron alloy as the material of the magnetic material. One or a plurality of materials in the group: according to the present invention The shielding layer is an additive material to the organic polymer as the bonding material. Since such an additive is used, stable magnetic properties can be obtained, and workability such as cutting and the like can be imparted. The invention is characterized in that it is rendered flame-retardant. According to the present invention, the sheet can be made flame-retardant. For example, an electronic communication device for wireless communication using an antenna element including a standard, a reader, and a mobile phone is sometimes required. It is flame retardant, and the sheet can be suitably used in applications requiring such flame retardancy, and is characterized by the present invention in which thermal conductivity is imparted. According to the present invention, the environment of the sheet body, (4) the communication mechanism including the ..., the power source mechanism, and the like are used in the vicinity of the mechanism which is the heat source. Since the sheet is excellent in thermal conductivity, heat emitted from a mechanism serving as a heat source can be dissipated, and the temperature rise of the mechanism of the heat source can be suppressed to prevent deterioration in performance due to exposure to high temperatures. Further, the feature of the present invention has at least a surface portion having adhesiveness or adhesion. According to the present invention, at least one of the surface portions has adhesiveness or adhesion, so that it can be attached to other articles such as the above-described member having the conductive material. Thereby, the sheet can be easily used. U5092.doc • 16- · 'Electrical field type antenna element Resonant frequency; and the antenna device of the present invention is characterized by a device having a frequency for cooperating with wireless communication and the above-mentioned sheet. According to the present invention, the sheet is provided between the antenna elements and Mv, between the members including the conductive material or in the vicinity of the antenna elements. Thereby, the antenna device is provided in the vicinity of the member of the fourth part containing the conductive material, and the antenna element can be used; and the wireless communication is used to transmit the electronic information. Such as described above, an antenna device applicable to a member having a portion including a conductive material can be realized. Further, the antenna device of the present invention is characterized in that, according to the present invention, even in the vicinity of a member having a portion including a conductive material, an antenna device including an antenna element can be used, and wireless can be smoothly performed. Electronic communication device for communication. Further, the present invention is characterized in that it is used as an interrogator on an article in which the (four) set state is installed. According to the present invention, an electronic information transmission device including a sheet is used as an interrogator for an RFID (Radi0 Frequency (4) called RFID) system such as a tag. The use of the device can also suppress the effects of electromagnetic coupling with other interrogators present in the vicinity and other interrogators. If the complex responder is used in a dense state, other responders become members having a portion formed of a conductive material, affecting wireless communication, but if the pager is provided before the responder, other responders can be suppressed. The effect of the reader can improve the reading of the reader 115092.doc -17- [Embodiment] [Effect of the Invention] According to the present invention, the sheet body is placed by #^^_°, and the antenna element is configured to have a conductive When the material of the material is in the vicinity of the member of the 4-knife, the antenna element can be suppressed. Therefore, by using the sheet, even if an electric field is used, 70, in the portion having the conductive material, Near the components, /λ can smoothly communicate wirelessly. Further, according to the present invention, electromagnetic field # can be suppressed by the vicinity of the h member having the energy of the state in which the antenna element including the conductive material is disposed. Therefore, by using the sheet, the electric field type antenna element n: the vicinity of the member having the 导电3 conductive material can be used, and the wireless communication can be smoothly ordered. In addition, according to the present invention, by using a thin moon body, a simple, small dipole "line, early pole antenna, loop antenna or the like can be used in the vicinity of the member having the portion including the guide π. At least one of the antennas of the reactance element structure W is mounted for wireless communication. Further, according to the present invention, 'near a member having a portion containing a conductive material', 30 GHz or less is used on an rtr rtZU of 300 MHz or more. The frequency of the electromagnetic j can smoothly enter the wireless communication. Because the electromagnetic of this frequency is utilized, the small antenna can realize the long-distance wireless communication distance. In addition, according to the present invention, the frequency of the electromagnetic wave used for wireless communication is 860 MHz. The frequency included in the above i-mail can be applied to the communication between the devices with the right knife, and the U5092.doc 丄W4670 communication can be performed using the electric field type small antenna. In addition, the electromagnetic wave used in the wireless communication according to the present invention The frequency is the frequency included in the GHz band, so it can be applied to the communication between relatively separate devices, and can be used by using an electric field type small antenna. Further, according to the present invention, by using the shielding layer of the magnetic body, even if it is an electric field type antenna, the impedance can be controlled to be lowered, and it can be used in the vicinity of a member having a portion including the conductive material to perform wireless communication. According to the invention, the real part μ of the composite relative magnetic permeability of the shield layer is larger than the imaginary part μ of the complex δ relative magnetic permeability, and therefore, a sheet capable of suppressing a decrease in the input impedance of the antenna 7G and a loss of electromagnetic energy can be obtained. According to the present invention, the real part μ of the composite relative magnetic permeability of the shield layer is 5 or more, and the magnetic permeability loss term is hereinafter, so that it is possible to suppress the decrease in the input impedance of the antenna element and the electromagnetic energy loss sheet. Further, according to the present invention, the real relative magnetic permeability of the shield layer is 20μ of 20 or more, and the magnetic permeability loss term is 〇5 or less, so that the reduction of the input impedance of the antenna element and the electromagnetic energy can be suppressed. °. Lost sheet. Ribe additionally, according to the invention, the real part ε' of the composite relative permittivity of the shielding layer is 20 Therefore, it is possible to obtain a sheet capable of suppressing a decrease in the wheel-in impedance of the antenna element and a loss of electromagnetic energy. Further, according to the present invention, the imaginary part ε" of the composite relative permittivity of the shield layer is 300 or less, so A sheet which can suppress the decrease of the wheel-in impedance of the antenna element 115092.doc 1334670 and the loss of electromagnetic energy is obtained. Further, according to the present invention, the composite relative of the shield layer is adjusted in the state where the conductor layer exists in the vicinity of the antenna element. The real part of the magnetic permeability and the imaginary part μ, or the real part of the composite relative permittivity ε, can achieve good characteristics of the shielding layer. Because &, it can be smoother in the vicinity of the member having the portion containing the conductive material. Implement wireless communication.

Further, 'the structure of the present invention is a material composed of at least any of a soft magnetic metal, a soft magnetic metal oxide, a magnetic metal, and a magnetic metal oxide, or a material containing the same, so that a shield layer capable of obtaining the aforementioned characteristics can be formed. . Therefore, a sheet which achieves the aforementioned excellent effects can be realized. Further, according to the present invention, the weight portion of the organic polymer is formed in one! A material selected from the group consisting of an oxidized magnet, an iron alloy, and an iron particle, which is a weight of 1,500 or less by weight or less, is used as a magnetic material to form a shield layer. Therefore, a sheet which can achieve the aforementioned excellent effects can be realized.

Further, according to the present invention, the flame retardancy of the sheet can be obtained, and it can be suitably used for applications requiring flame retardancy. Further, according to the present invention, the heat generated by the mechanism that dissipates the heat source in the vicinity of the mechanism used as the heat source can suppress the temperature rise of the heat source mechanism and prevent the performance from being lowered due to exposure to high temperatures. . Further, according to the present invention, since at least one surface portion has adhesiveness or adhesion, it can be attached to other articles. Thereby, the sheet can be easily used. Further, according to the present invention, a sheet body is provided, which is provided in the vicinity of a member having a portion containing a conductive material, and an antenna device which can be applied to wireless communication can be realized. Further, according to the present invention, even in the vicinity of a member having a portion/knife including a conductive material, an electronic information transmission device capable of smoothly performing wireless communication can be realized. In addition, according to the present invention, even if an inquiring state is installed on an intensive article to suppress the influence of electromagnetic binding with other interrogators and other interrogators, the reader can be improved. Read rate. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a cross-sectional view schematically showing a sheet 1 of an embodiment of the present invention. The sheet member 10 is provided between the electric field type antenna element 丨丨 and a member having a portion including the conductive material (hereinafter referred to as "obstructing communication member") 12 or in the vicinity of the antenna element, and the communication member 12 is blocked by the antenna element i α . When wireless communication is performed nearby, the communication environment formed by the antenna element 丨1 is suppressed, and the sheet 1 that is deteriorated by the communication member 12 is prevented. Here, the nearby location is a nearby location that affects the communication environment of the wireless communication constituted by the antenna elements. a Deterioration of the communication environment, including the reduction of the input impedance of the antenna element n and the loss of electromagnetic energy. Further, the resonance frequency of the antenna element 11 can be shifted due to the influence of the communication member 12. Therefore, the sheet 1 suppresses the decrease in the input impedance of the antenna element #11 caused by the communication member 12, and suppresses the sheet 1G which is prevented from damaging the electromagnetic energy by the communication member 12. Further, the resonance frequency may be adjusted by the sheet or integrated by the integrated circuit (reactor assembly). 115092.doc -21· 1334670 The antenna element 11 is not particularly limited as long as it is an electric field type antenna element. However, in the present embodiment, it is a dipole antenna, a monopole antenna, or a loop antenna. In the case of a loop antenna, when the circumference is 1 wavelength or close to 1 wavelength, the electric field type tends to be present. Here, the i /2 wavelength of the 丨 wavelength or the dipole antenna and the 1/4 wavelength of the monopole antenna are effective, and include, for example, the ratio of the electric attraction rate and the magnetic permeability receiving wavelength shortening to the length corresponding to the wavelength thereof. .

The electric field type antenna element in the present invention refers to a function of detecting a magnetic field line except for a function of a magnetic field type antenna element having only an electromagnetic induction type, as long as it has the function of an electric field type antenna element, that is, it is detected. The function of the electric force line can be. Therefore, the electric field type antenna element includes a component that utilizes only the function of detecting electrical power lines, a component that combines (four) electrical power line function, debt, ', and force line machine, and detects electrical power line function and detection. The magnetic line function can switch the components used in turn.

The conductive material as a blocking communication member in the present invention means a material formed only of a material having conductivity, and a material containing a conductive material. The conductive material includes a conductive material such as a metal, a Si-based material, a black-wound sheet, an oxide such as ΙΤ0 and zno, and a water, a music, an oil body, or an aqueous material, which may have a high frequency between the antenna element and the antenna element. The conductive material which is caused by short circuit, bonding or interference is a material having electrical conductivity, and includes a material having a low electrical resistivity of less than 10 cmcm and a low electrical resistivity of less than 10 丨ncm. Liquids such as seawater and semiconductors, etc., have a resistivity of 10.1 Qcm and a material having a high resistivity of less than 6 ft Cm. A member having a portion containing a conductive material is at least 115092.doc -22· 1334670 having a portion formed of a conductive material, a member comprising a monolithic material, and only a portion of the conductive material The component formed by the material. Therefore, 'this member is at least partially a member having electrical conductivity, and may have conductivity only in the surface portion, for example, or may have conductivity in all, specifically, 'including other antenna bodies, other antenna elements, metal plates, metal containers, The individual, the electric screen coffin, the conductive tanning, the container for accommodating the liquid, the test tube for accommodating the liquid, and the container for accommodating the slurry. The antenna element U and the sheet 10 may be attached via an adhesive layer or may be directly mounted without an adhesive layer. The adhesive layer has adhesiveness or adhesion, and the layer formed of the bonding agent adheres the antenna element 丨丨 and the sheet 10 by adhesiveness or adhesion. The bonding agent is typically an electrical conductor. When the device is directly mounted, it may be attached to each other by at least one of the antenna element u and the shielding layer 13 , or the antenna element u may be printed on the shielding layer 13 . The structure which is directly processed and mounted, such as description, vapor deposition, or the like, may be applied, dissolved, fixed, embedded, or infiltrated into the antenna element i or the support supporting the antenna element 丨丄. Blow up. The support may be, for example, a PET film. The sheet 10 is a sheet having a shielding electromagnetic field effect, and has a sheet body that shields the effect of an electromagnetic field formed by electromagnetic waves used for wireless communication, that is, 'in order to suppress the presence of the communication member 12 in the vicinity of the antenna element 11 The influence of the impedance reduction or the like causes the electromagnetic field from the antenna element 难以 to be difficult to be transmitted to the sheet for obstructing the communication member 12. Although it is represented by a shield, it includes a case where only a part of the shield is not completed, and a case where the magnetic field is concentrated to pass it. Therefore, the sheet 10 is interrupted by the structure of the electromagnetic wave used for suppressing the enthalpy of the aforementioned communication environment by the wireless transmission 115092.doc -23-1334670. The electromagnetic wave to be shielded can be an electromagnetic wave used for any application, and the frequency of the electromagnetic wave to be shielded is determined by the use of electromagnetic waves. The electromagnetic wave to be shielded is, for example, an electromagnetic wave used in the RF (10) system, and is an electromagnetic wave of a frequency included in the range below 860 MHZ of the Qing band (hereinafter referred to as "high MHz band"), more specifically 'In Japan, the electromagnetic wave of the frequency contained in the range of 95G MHZ or more and 956 MHz or less. The frequency of the electromagnetic wave as the shielding target is shielded as an example, and the configuration of the electromagnetic wave having a frequency other than the frequency illustrated by the shielding is also included in the present invention. The material properties of the shielding layer vary almost indifferently within these frequency ranges, and the number in the present invention can be directly used. In addition, it is also possible to use electromagnetic waves at a frequency of the 2.4 GHz band as a shielded object. The 2.4 GHz band is above 2400 MHz and does not reach the 2500 MHz frequency range. The frequency of the electromagnetic wave used in the RFID system is included in the range of 24 〇〇 MHz or more and 2483.5 MHz or less. The frequency of the electromagnetic wave to be shielded is not particularly limited, and may be any frequency of 300 GHz or less, and any singular or complex frequency may be selected. In the range of 300 MHZ or more and 300 GHz or less, the UHF band (300 MHz to 3 GHz), the SHF band (3 GHz to 30 GHz), and the EHF band (30 GHz to 300 GHz) are included. The sheet 10 is composed of a laminate in which the shield layer 13, the conductor layer 14, and the patch layer 15 are laminated. The shield layer 13 is a layer for shielding electromagnetic fields, and is shielded by a layer for electromagnetic waves. The conductor layer 14 is a layer formed of a conductive material, and is formed of copper in the present embodiment. Since the conductor layer 14 hinders the communication member from possibly affecting the antenna element 11, the influence of the shield layer 13 is suppressed. It is also possible for the conductor layer 14 to function as an intermediate antenna. In order to increase the impedance of the conductor layer 14, a gap, a division, may be added to cause the conductivity to exhibit a distribution. In addition, the size of the conductor layer 14 is not particularly limited.

The adhesive agent layer 15 is a layer formed by attaching a sheet bundle containing the shield layer 13 to an adhesive for an article. The patching agent contains at least one of an adhesive and a binder, and has a bonding force by adhesion or adhesion. The shield layer 13, the conductor layer 14, and the attaching agent layer 15 are laminated in this order from the side in the thickness direction to the other side. Between the shielding layer 13 and the conductor layer 14 or in the vicinity of the antenna element, a bonding layer 16 formed of an adhesive or an adhesive is interposed, whereby the shielding layer 13 and the conductor layer 14 are bonded to each other by the bonding layer 16.

The adhesive layer (10) is bonded to the conductor layer (4) by its own adhesive force or adhesion force. Hereinafter, when the shield layer 13, the conductor layer 14, the adhesion agent layer 15, and the adhesion layer 16 are collectively referred to, they are referred to as the respective constituent layers 13 to 16. The conductor layer 14 and the adhesive agent 〗 〖 The agent layer 15 is not an absolutely necessary constituent material, and the shield layer 13 can be attached to the blocking member layer 16 via the adhesion layer 16 to prevent the communication member η 1, 2 16 Direct lamination. Each of the constituent layers of the sheet 1 'multilayered' can also be used, for example, by multilayering the shield layer 13 and making the magnetic permeability inclined, and the skewness can be obtained. The IM吏 early layer can also have a magnetic permeability. 115092.doc 25- 1334670 The thickness of each layer 13 to 16 and the thickness of the sheet 1 are not particularly limited. 'Test 1' In the present embodiment, the thickness of the shield layer 13 is 1 μm or more and 1 〇. Below mm, the thickness of the conductor layer 14 is 10 〇A (lxl 〇 -8 m) or more and 5 〇〇 μ ηη or less, and the adhesive layer is

The thickness of the layer can be made small, and the layers 13 to 16 are formed of the aforementioned materials and have a smear property. Therefore, the sheet 1 can be freely deformed.

111111 or less, the layer 16 is 1 or more and 1 mm or less, and the entire thickness of the sheet workpiece is 3 μm or more and 12 mm or less. The entire shield layer 13 of the sheet body shields the electromagnetic waves used for wireless communication by selecting the material characteristics including the composite relative magnetic permeability and the composite relative permittivity. The larger the real part of the composite relative magnetic permeability μ. The larger the magnetic field lines will pass through, the electromagnetic shielding effect is improved, and the imaginary part of the composite relative magnetic permeability μ" and the magnetic permeability loss term ί&ηδμ(=μ"/μ') The smaller the loss of magnetic field loss is. Therefore, the larger the real relative permeability of the composite relative magnetic permeability is, the more ideal, the imaginary part of the composite relative magnetic permeability μ" and the guide loss item ta cal is smaller, the more the rational, the larger the real relative permittivity, the larger the 胄 pneumatic line It will be concentrated and passed, and the shielding effect of electromagnetic waves will be improved. The smaller the imaginary part ε" of the composite relative permittivity is, the smaller the loss of field loss will be. Therefore, the larger the real part 8· of the composite relative permittivity is, the more ideal it is, and the smaller the imaginary number of the composite relative permittivity is. Further, in the present invention, the real part of the composite relative magnetic permeability, and the imaginary part μ" 'and the real part 8 of the composite relative permittivity and the number 値' of the imaginary part ε" correspond to the frequency of the electromagnetic wave used for wireless communication. The frequency of the electromagnetic wave used for the number of n-line communication is not particularly limited, and may be a frequency including a LF band, an SHF band, and a biliary band. The frequency of the range 115092.doc -26· 1334670 may also be, for example, 860. Frequency above 1 band in MHz or 2.4 GHz band. In the present embodiment, the electromagnetic layer used for the wireless communication has the imaginary part μ of the magnetic phase of the composite phase material and the imaginary part of the magnetic phase of the composite phase material, which is the real part of the composite relative magnetic permeability. The imaginary part of the system is larger than the imaginary part of the composite relative permeability, and the shielding (four) is wireless

The electromagnetic wave used for communication has a real part ratio of the composite relative magnetic permeability of 5 or more, and the magnetic permeability loss term "is considered to be 丨 or less. The structure of the shield layer 13 is preferably an electromagnetic wave for wireless communication, and a real part of the composite relative magnetic permeability. When μ' is 10 or more and the magnetic permeability loss is below, it is more preferable that the electromagnetic wave used for wireless communication has a real part μ' of the composite relative magnetic permeability of 20 or more' and a magnetic permeability loss term or less.

In addition, in the present embodiment, in the present embodiment, the electromagnetic layer used for the wireless communication of the shield layer 13 has a real part ratio ει of the composite relative permittivity of 2 〇 or more, and the imaginary part of the composite relative permittivity is 300 or less. The rate loss term ^11&(4") is 15 or less. Fig. 2 is a cross-sectional view showing an enlarged internal structure of the shield layer 13. In Fig. 2, it is easy to illustrate, and the hatching of the magnetic powder 21 and the magnetic fine particles 22 is omitted. In order to obtain the above-described material properties, the bonding layer 2 is a mixture of a powder having a magnetic material (hereinafter referred to as "magnetic powder") 21 and a microparticle formed of a magnetic material (hereinafter referred to as "magnetic microparticles". ") formed by 22. The magnetic material in the shield layer 13 contains the magnetic powder 21 and the magnetic fine particles 22. In this embodiment, the binder 2 is formed of a polymer, such as a non-worm polymer, or a halogen-free polymer, and other 115092.doc -27· 1334670, and a mixture of ι7 Formed. The specific example of the binder is only one example, and especially the μ-μ > 1J is not limited to the halogen-free polymer.

: Material: (4) polymer can be used. About the bonding material 2. It is a polymer E, a rubber (4), an oligomer, etc., regardless of the organic type and the inorganic type (4): a material of various materials can be used regardless of the degree of polymerization. The toothless material 'is suitable for use based on environmental considerations. For the flaking, a polymer material is suitably used, and for example, it can be suitably used, for example, a material of a type not mentioned, a material having a different addition method, an alloyed material, or the like, and a sheet-formable material. Can be used. As the material of the bonding agent 20, various organic polymer materials such as a rubber, a thermoplastic elastomer, a polymer material containing various plastics, and the like can be used. The above rubber two, such as natural rubber, is made of isoprene rubber, butyl rubber, styrene-butadiene rubber, ethylene-propylene rubber, ethylene-vinyl acetate rubber, butyl rubber, and functional butyl rubber. , gas dibutyl rubber, rubber, acrylic rubber, ethylene propylene rubber, epoxy gas propane rubber, fluoro rubber, amine Lai rubber, Shi Xi rubber, polyethylene rubber, HNBR, etc. The synthetic rubber alone, the inducer of these, or the like, or the like, which is modified by various denaturation treatments. It can also be a liquid rubber win. These rubbers may be used in combination or in addition to them. In addition to the sulfur-adding agent, the rubber may be appropriately added to the user of the existing rubber additive such as a vulcanization accelerator, an aging inhibitor, a softener, a plasticizer, a filler, and a colorant. In addition to these, any additives may be used. For example, in order to control the electric conductivity and conductivity, a specific amount of an electric conductor (carbon black, black lead 'titanium oxide, etc.) is produced in an electronic machine that is used in one of the applications. 115092.doc -28-

° It is also possible to selectively process thermoplastic elastomers, for example, copolymers, propionate impedance matching, and temperature extremes. Design materials are added to processing aids (slip agents, dispersants). Such as chlorine, such as polyvinyl chloride, B-type; /, °, propylene, ethylene propylene copolymers, amine esters, esters, styrenes, phthalamides and other thermoplastic elastomers and These inducers. Further, various plastics may be, for example, polyethylene, polypropylene, As resin, MS resin, polystyrene, polyvinyl chloride, polyvinylidene chloride, etc., polyvinyl acetate, ethylene vinyl acetate copolymerization Synthetic, fluorophyllin, anthraquinone, propylene resin, nylon, polycarbonate, polyethylene p-benzoic acid δθ, acid alcohol resin, unsaturated polyester, poly, amine ester resin, phenolphthalein, urea resin A thermoplastic resin such as an epoxy resin, a polyamidene resin, a biodegradable tree, or a thermosetting resin, and an inducer thereof. These binders can be used in low molecular weight oligomer types as well as in liquid form. Any material can be selected as long as it is formed into a sheet by heat, pressure, ultraviolet rays, radiation, electron wires, air drying, hardener, or the like. The magnetic powder 21 is a flat soft magnetic metal powder which is dispersed and not in contact with each other and is arranged to extend vertically in the thickness direction of the shield layer 13. The magnetic powder 21 has a slightly round plate shape, an average thickness of 2 μm, and an average outer diameter of 55 μm in a direction perpendicular to the thickness direction. The magnetic fine particles 22 are fine particles having a smaller thickness than the metal powder, and have a structure in which the structure is non-conductive at least in the outer surface portion, and the electrical conductivity is lowered. The average outer diameter of the magnetic fine particles 22 is 1 μm. » The bonding material 20' which forms the shielding layer 13 uses, for example, NBR rubber 115092.doc -29-gel HNBR to which hydrogen is added. Further, the magnetic powder 21 is formed of iron-aluminum tantalum such as iron, tantalum, and an alloy of aluminum (Fe-Si-Al). Further, the magnetic fine particles have corrosion resistance which suppresses the overall conductivity, and are formed, for example, by iron oxide (magnetite). The shapes, dimensions, and materials described above are merely illustrative and are not limited thereto. The material of the shield layer 13 is not particularly limited as long as it has a suitable composite relative magnetic permeability and a composite relative permittivity. As in the present embodiment, the soft magnetic powder 21 and/or the magnetic fine particles 22 are dispersed in the bonding material 2, and the magnetic body (metal oxide, ceramic, granular film, oxidized magnet plating, metal organic) can be directly used. A compound, magnetic money, or the like is used as the shield layer 13. The material of the soft magnetic powder of the soft magnetic powder 21 and/or the magnetic fine particles 22 is, for example, a ferro-aluminum lanthanum (Fe-Si-Al alloy), a permalloy (Fe_Ni alloy), and a Shih-titan (Fe-Cu-Si alloy). ), Fe-Si alloy, Fe-Si-B (-Cu-Nb) alloy, Fe-Ni-Cr-Si alloy, Fe-Cr-Si alloy, Fe-Al-Ni-Cr alloy, Fe-Ni-Cr Alloy, Fe-Cr-Al-Si alloy, Fe alloy, Co alloy,

Si-based alloys, Ni-based alloys, and amorphous metals. Further, as the material of the soft magnetic powder, an oxidized magnet or pure iron can also be used. As the oxidized magnet, for example, a soft oxidized magnet such as a Mn-Zn oxidized magnet, a Ni-Zn oxidized magnet 'Μη-Mg oxidized magnet, a Μ 氧化 oxidized magnet, a Cu-Zn oxidized magnet, a Cu-Mg-Zn emulsified magnet, or a permanent magnet material can be used. Hard oxide magnet. Pure iron is, for example, carbonyl iron. The material of the soft magnetic powder may be used in combination of a plurality of materials other than the magnetic material. The soft magnetic powder may be, for example, a flat soft magnetic powder such as a disk-shaped plate shape or a circular shape in which a circular shape of the crucible is rotated along a short axis, and may be, for example, a needle 115092.doc • 30· π·〇/ Non-flat soft magnetic powders such as enamel, fibrous, spherical, polyhedral, and blocky, and soft magnetic powders are flat soft magnetic powders with high magnetic permeability. The soft magnetic powder may be a mixture of only one type of powder, or a mixture of a plurality of types of powders. However, when a plurality of types of powders are combined, it is desirable that at least one of them is flat. The soft magnetic powder has a particle diameter of 1 nm or more and 1 μm or less, and preferably 1 μm or more and 300 μπι or less. Further, in the case of the flat soft magnetic powder, the axial length ratio is 2 or more and 500 or less, and preferably 1 Torr or more and 1 Torr or less. In particular, since a magnetic fine powder having a nanometer size is used, in the shield layer of the frequency band and the SHF band, the enthalpy of the real part of the composite relative magnetic permeability can be increased, for example, by 10 or more, and the imaginary part of the composite relative magnetic permeability can be reduced. For example, 5 or less. Further, in order to increase the insulating property on the surface thereof, the soft magnetic powder may be subjected to coating treatment such as electroplating, dissolution, or electro-deposition to form an organic or inorganic coating layer. Further, the soft magnetic powder may have an oxide film for improving corrosion resistance on its surface. The surface of the magnetic powder is desirably subjected to a surface treatment. As the surface treatment agent, a general treatment method using a coupling agent and a surfactant can be used. Further, all methods for improving the wettability of the magnetic powder and the bonding material, for example, using a resin coating, a dispersing agent and the like can be used. The magnetic material of the shield layer 13 is formed of a material formed of at least one of a soft magnetic metal, a soft magnetic metal oxide, a magnetic metal, and a magnetic metal oxide, or a material containing the same. The shielding layer 13 may be at least one of a powder and a fine particle formed by at least one of a soft magnetic metal, a soft magnetic metal oxide, a magnetic metal, and a magnetic metal oxide, and dispersed as described above to a combination 115092.doc • 31· 1334670 The structure 'in 20' may also be formed as a film containing a film formed of at least one of a soft magnetic metal, a soft magnetic metal oxide, a magnetic metal, and a magnetic metal oxide. The structure is such that the magnetic material is dispersed in the shield layer 13 of the bonding material 20, and the bonding material 20 is composed of an oxidizing magnet, an iron alloy, and the like, which is contained in an amount of 1 part by weight or more and 1500 parts by weight or less to the weight of the organic polymer (10). A material selected from a group of iron particles or a plurality of materials is formed as a material of a magnetic material. The amount of the magnetic material of the organic material is 100, and the amount of the organic polymer is 100 parts by weight, preferably 10 parts by weight or more and 1,000 parts by weight or less. When the amount of the magnetic material in the weight of the organic polythene is less than 1 part by weight, sufficient magnetic permeability cannot be obtained, and if it exceeds 1,500 parts by weight, the workability is not good. The sheet 10 is produced, or it is difficult to manufacture. ',,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,, Real = _ The electromagnetic wave that is the shielding object contains the sorghum band and the "frequency of the band". Composite relative conduction · heart frequency (10), the higher the frequency of the electromagnetic wave becoming the object, the real imaginary number potential. Therefore, it is necessary to shield the structure including the high ΜΗζ band with 2 = smaller 趟 electromagnetic wave, and for example, to shield UX 1〇ΜΗ·, the electromagnetic wave of the frequency of the outband is compared with the structure of the lower real number, and the imaginary part μ", especially the real part of the relative magnetic permeability, improves the composite relative in the shield layer 13 Magnetic permeability: two. Increase the magnetic layer in the shield U by a real number. Ρ μ', the amount of the part that must be composed. In addition, in order to reduce the imaginary number of the composite relative magnetic permeability, it is only necessary to reduce the portion of the path 25 of the magnetic flux which is formed of a non-magnetic material. Briefly, as long as the amount of the magnetic powder 21 on the shield layer 13 is increased, the amount of the portion formed by the magnetic material can be increased, and the non-wei material can be reduced in the path of the magnetic field lines, but (9) If the amount of the powder is too large, the magnetic powders 21 are brought into contact with each other, and the shield layer 13 is made electrically conductive. 'The electric current is generated in the shield layer 13, which is caused by the electric resistance: the loss causes the electromagnetic energy to be absorbed. Therefore, the amount of the magnetic powder 2 ι cannot be simply increased. In the present embodiment, in addition to the magnetic powder 21, the magnetic fine particles 22 can be mixed, whereby the magnetic powders 21 can be prevented from coming into contact with each other, and the magnetic fine particles 22 are interposed between the respective magnetic powders 21, and the magnetic particles 22 are formed by the magnetic material. The portion of the amount 'and reduces the portion of the path 25 of the magnetic field lines formed by the non-magnetic material. Therefore, the composite relative magnetic permeability as described above can be obtained for the electromagnetic wave of the high MHz band and the 2.4 GHz band. For example, for the shield layer Η, the real part of the relative magnetic permeability of the electromagnetic wave composite of 950 MHz is 1916, the magnetic permeability loss term tanSp is 0.58', and the real part ε of the composite relative permittivity is 165.8, and the electric induction loss term ίαηδε is 0.15. Further, the surface resistivity (JIS Κ 6911) of the shield layer 13 is 106 Ω / | Ι |. In the high frequency domain including the high MHz band and the 2.4 GHz band, even if it is a magnetic metal, the real part μ of the composite relative magnetic permeability is drastically lowered, and it is difficult to obtain high defects. Further, 'in the GHz band of 1000 MHz or more, the sheet of the magnetic metal monomer is provided with the sheet 10 of the shield layer 13 in which the magnetic powder 21 is dispersed in the bonding material 2, and the real part of the composite relative magnetic permeability is μ. And 115092.doc -33- ^34670 imaginary part μ" both exhibit a higher 値. In a low frequency of about 1 MHz or more and less than 1 〇MHz, the magnetic powder 21 is dispersed to the composite body of the sheet 10 of the bonding material 20 The real part of the magnetic permeability is of course smaller than the real part μ' of the composite magnetic permeability of the sheet of the magnetic metal alone. Comparing the decrease rate of the real part μ' of the composite relative permeability due to the increase in frequency, it is found that the magnetic property is The rate of decrease of the sheet 10 in which the powder 21 is dispersed to the binder 2 is smaller than that of the sheet of the magnetic metal monomer.

At a frequency higher than 300 MHz, especially in a high frequency domain including a high enthalpy band and a GHz band above 〇 GHz and less than 1 THz, a reversal phenomenon may occur, and the magnetic powder 21 is dispersed to the sheet 1 of the bonding material 2〇. The real part μ of the composite relative magnetic permeability of 〇 can be larger than the real part μ of the composite magnetic permeability of the composite of the magnetic metal single. This phenomenon is caused by the fact that the magnetic powders 2丨 and 22 of the magnetic body are separated and dispersed from each other, and the magnetic material is lost due to the material interposed therebetween. Therefore, in the shield layer 13 of the sheet, the resonance frequency of the magnetic resonance gas is directed toward the frequency side. That is, the phenomenon that the lateral GHz band side is shifted by the sideband (1 Cong or above, less than i GHz). Furthermore, if the limit of Wk is as shown, there may be a decrease in the frequency due to the composite coherence: the real part μ of the magnetic permeability, and the frequency of the real part μ' of the magnetic permeability of the composite phase. The reduction rate is linked, and the imaginary part of the composite relative magnetic field is increased. Above the 3〇ft oyster, the high frequency domain of the MHz band and the GHz band. "The film of the dry magnetic Ning's magnetic metal monomer is in the middle of the film with the composite relative magnetic permeability. The real part of the μ and the imaginary part μ" is large, the composite real part of the relative magnetic permeability μ, small, and the imaginary part of the magnetic permeability of the complex element is large. Above 300 MHz, * a

In particular, in the high-frequency domain including the high-MHz band and the GH U5092.doc •34. band, it is difficult to obtain a characteristic that the real part y of the composite relative magnetic permeability is large and the imaginary part μ′ of the composite relative magnetic permeability is small. The larger the real part μ· of the composite relative magnetic permeability in the low frequency domain, the higher the decrease rate of the real part μ of the composite relative magnetic permeability due to the increase in frequency. The powder of the magnetic material having such a tendency (magnetic The powder 21 is dispersed in the binder 20, and the ratio of the real part μ of the composite relative magnetic permeability due to the increase in frequency can be suppressed, and the insulation between the magnetic powders 21 can be ensured. 2 1 Disperse into the structure of the bonding material 2〇 'Composite relative magnetic permeability of 300 Hz or higher, especially in the high frequency domain containing the sorghum band and the GHz band due to the influence of the bonding material 2〇 existing between the magnetic powders 21 The real part μ has an increase in its limit. Therefore, in order for the magnetic line to easily pass through the shield 13 of the sheet 1 , a so-called magnetic field path is required, which is a real part of the composite relative permeability. The high path is constructed to a lesser extent. In order to form the magnetic path, the magnetic particles 22 are mixed. Of course, it is necessary to ensure high electrical insulation between the magnetic powders 21, so that the formation of the magnetic path does not The shield layer 13 has a conductive structure. This electrical insulating property can be realized, for example, by making the magnetic fine particles 22 have a structure in which at least the outer surface portion has a non-conductive property. In the present embodiment, the magnetic fine particles 22 are used. The nanoparticle of the oxidized magnet. Since the particle is an oxide magnetic body, no conductivity is found. For example, the imaginary part of the magnetic permeability of the complex element is “over the frequency of the resonance frequency of the complex peak to the high frequency side, and then raised to 5 At GHz and 10 GHz, the real part of the composite relative magnetic permeability of 300 MHz or higher, especially the high mHz band and the 2.4 GHz band, and the imaginary part of the composite relative permeability are small and small 115092.doc -35- Shielding layer 13 of 1334670 Further, in order to increase the filling rate of the magnetic material, the other shielding layer 13 of the embodiment of the present invention has an average particle diameter ratio of about 4 丨. The two magnetic particles of different sizes are mixed with the above-mentioned one to the bonding material 2, and the magnetic fine particles and the soft magnetic metal are mixed. Then, in order to ensure electrical insulation, the electrically insulating fine particles are mixed. It is formed of the same material as the magnetic powder 21 described above, and has a large average particle diameter of about 2 μm and a small average particle diameter of about 5 μm. Further, the magnetic fine particles and the soft magnetic metal fibers are formed of an iron-based material, and the magnetic fine particles are formed. The average particle diameter and the average fiber diameter of the soft magnetic metal are about 丨μιη. The electrically insulating fine particles are formed of yttrium oxide (si〇2) and have an average particle diameter of about 1 〇 nm. Further, the small particles have a function of controlling the direction and spacing of the magnetic powder 21 when the shield layer 13 is dispersed. Then, in order to remove the voids in the shield layer 13 as much as possible, the theoretical specific gravity 値 as close as possible to the formulation is taken as the measured specific gravity 屏蔽 of the shield layer 13, and the design is made, and the structure shown in Fig. 2 is changed to the above-described structure. Ground, the imaginary part of the magnetic permeability of the complex element is shifted to the high frequency side and then raised to 5 GHz and 10 GHz, which can be composited above 300 MHz, especially in the high MHz band and the 2.4 GHz band. The real part μ' of the relative magnetic permeability is large, and the imaginary part of the magnetic permeability of the complex is μ" small shielding layer 13. Further, the basic concept of the material design of the shield layer 13 of the present embodiment is that the real part of the composite relative magnetic permeability having a high resistance at the communication frequency and the communication frequency is increased, and the magnetic field component is introduced into the shield layer 13, and the flat shape is The magnetic powder is minutely aligned and arranged so that the magnetic gas easily flows in any direction, and the magnetic anisotropy is imparted, and the imaginary part μ· of the magnetic permeability of the complex is lowered to suppress the loss of the magnetic rolling. Thereby, the effect of the present invention can be obtained. Further, the sheet ίο is provided with at least one of the layers 13 to 16 with a flame retardant or a flame retardant. As a result, an electronic device such as a mobile phone such as a mobile phone is provided to the sheet, and the polymer material contained therein is required to have flame retardancy. The flame retardant for obtaining such flame retardancy is not particularly limited, and may be, for example, a cerium delta boron compound, a odor-based flame retardant, a repellent flame retardant, a nitrogen-based flame retardant, and a water oxide-based flame retardant. Agents, metal compounds, flame retardants, etc. are applicable. Phosphorus compounds include phosphates, titanium phosphates, etc. Boron compounds have boric acid, etc. Bromine-based flame retardants are hexabromo#, hexabromocyclododecane, decabromobenzene. Decabromo Benzyl Phenyl Ether > + ^ ^ ^ (Decabr〇m〇

Benzyl Phenyl Oxide), decabromobisphenol, ammonium bromide, and the like. Zinc-based flame retardants include zinc carbonate, zinc oxide or boric acid. The nitrogen-based flame retardant may, for example, be a nitrobenzene compound, a hindered amine compound, or a melamine compound such as a melamine cyanurate ^ ^ ^ ^ m (me 1 amine guanidine) compound. The hydroxide-based flame retardant may be magnesium hydroxide or aluminum hydroxide. The metal compound-based flame retardant is, for example, antimony trioxide, molybdenum oxide, manganese oxide, chromium oxide, iron oxide or the like. In the present embodiment, in terms of weight ratio, the binder is 1 Torr, and each is added in a ratio of bromine-based flame retardant 20, antimony trioxide, and phosphoric acid ester 14, which can be used for UL94 flame retardant test. The test is equivalent to the flame retardancy of ν〇. The sheet 1 〇 can be applied to the material constituting such an article ’ or used in an article. It can be used in installations such as airplanes, ships and handles, etc., to prevent the use of U5092.doc • 37-1334670 combustion and the space in which it is accompanied by gas generation. Further, the sheet 10 is electrically insulating. Specifically, each layer 12, 12 is formed of the above-mentioned materials. Thus, the surface resistance of the sheet (four)

The rate (10) leg U) is 1〇6ω/□ or more. The shield layer is called the surface resistivity as the larger the better. Therefore, the maximum achievable enthalpy is the upper limit of the surface resistivity 値. Such as the description, has a high surface resistivity, and is electrically insulating. 々 In addition, the sheet 1G has heat resistance. Specifically, when the bridging agent is added to the rubber or the resin material, the heat resistance temperature of the sheet 10 is i5 "c, and the sheet 10 does not change in characteristics until at least 15 (the temperature of rc. In the environment in which the sheet is used, for example, a communication mechanism including an IC, a power supply mechanism, or the like is used as a heat source. The sheet 1 is excellent in thermal conductivity and can be diverged. The heat emitted by the mechanism as a heat source suppresses the action

The temperature of the heat source mechanism on the article prevents the performance from being lowered due to exposure to high temperatures. The surface portion of at least one side of the sheet 10 has adhesiveness or adhesion. In the present embodiment, the adhesive layer 15 is provided as described above, whereby the surface portion on the other side in the thickness direction has adhesiveness or adhesion. The sheet 10 can be attached to the article by the adhesive force of the adhesion or adhesion of the adhesive layer 15. Therefore, the sheet 10 can be simply attached between the antenna element u and the obstructing communication member 丨2 or in the vicinity of the antenna element by being attached to, for example, the communication member 12. The sheet 1 is disposed on one side in the thickness direction of the U5092.doc • 38· 1334670 antenna element 11 side, and the other side in the thickness direction is disposed on the side that hinders the communication member 12 . For example, the evaluation method of the present invention will be described in detail by way of Examples, and the present invention is not limited to the following examples. Example 1 is a method of adding (filling) hydrogen-added nitrile rubber (HNBR, "Zetpoi" manufactured by 〇本泽〇n) 丨 00 by weight as a binder 2〇, and using iron-aluminum lanthanum (Fe_si Ai-based alloy) (Tonghe Mining DT) 69 parts by weight of flat soft magnetic powder (magnetic metal) 2 1 and ultrafine iron powder (manufactured by JFE Chemicai) 69 parts by weight as magnetic fine particles 22, adding a surfactant, a dispersing agent, and adding a peroxide (Japanese fat) The product name "pERCUMY1D" is used as a bridging agent to form the shield layer 13 by a hot press method. When the sheet 10 having such a shield layer 13 is formed, the polymer fraction is 45.3 vol.% and the magnetic fraction is 46.4. Vol.% 〇The measured specific gravity 値 is calculated from the weight/volume of the sheet obtained above, and the specific gravity 値 is calculated by dividing the sum of the specific gravity X content of each constituent by the volume. The theoretical specific gravity 本 in this example is 3.89 'The measured specific gravity 3.5 is 3.53. The shield layer 13 obtained above was measured by a coaxial tube method for the material constant (the real part μ of the composite relative magnetic permeability, and the imaginary part μ", the number of the composite relative permittivity: ε and the imaginary part £, ·). Specifically, a ring-shaped sample having a shape of 7 mm and an inner diameter of 3 mm is formed, and the conductive coating is applied to the internal contact portion of the same axis and is dried. The network analyzer 115092.doc •39- 1334670 (Network Analyzer) 8720ES 'measured by the coaxial cable to determine the reflection attenuation intensity (through the attenuation intensity), thereby determining the composite phase magnetic rate The real part and the imaginary part μ". The real part ε of the composite relative permittivity and the imaginary part ε" of the composite relative permittivity are measured in the same manner as the real part 〆 and the imaginary part μ" of the composite relative permeability. It is sometimes referred to as the material constant if it refers to the real part 〆 and the imaginary part μ" of the composite relative permeability and the real part of the composite relative permittivity, and one of the imaginary parts s" or an unspecified complex number.

Figure 3 is a graph showing the measurement of the material order μ, μ", ε, and £"

Fruit chart. 4α "♦" symbol indicates the composite relative permeability S number μ, Μ "_" symbol indicates the imaginary part of the composite relative permeability, and the "△" symbol indicates the real part ε of the composite relative permittivity. The "χ" symbol indicates the imaginary part of the composite relative permittivity ε"β as shown in Fig. 3, and the real part of the composite phase magnetic flux of 950 ΜΗζ electromagnetic wave 〆(4)μ, the magnetic permeability loss term tanh is 0.58, and the composite relative The real part of the permittivity 6, is

165.8, the rate of loss of induction rate -15. In addition, the surface resistivity (10) Κ6911) is i〇6q/[J. Fig. 4 is a cross-sectional view schematically showing a sheet 3 of a sheet 1?. Figure 5 is a perspective view showing the label 30. The electronic information transmission device that transmits information by wireless communication is used, for example, as an interrogator for the RFID (Radi0 Frequency IDentificati〇n) system used for automatic recognition of solids. The tag 30 is electrically connected to the electric field type antenna element n and the antenna element, and the integrated circuit (hereinafter referred to as "IC") 17' is a communication mechanism that uses the antenna ^(4) for communication; and the sheet 1 〇β The structure of the tag 3〇 receives the request signal from the reader via the antenna element 11, and transmits the signal indicating the information stored in 115092.doc -40· IC17 by the antenna element u. Therefore, the reader can read the information stored in the tag 30. Tag 3〇 can be used for merchandise management, such as sticking to merchandise, to prevent theft of merchandise and the availability of inventory. The antenna element 11 and the sheet 1 are included to constitute an antenna device. Although not shown in Fig. 4, an integrated circuit may be added. The antenna element 1A as an antenna mechanism is a dipole antenna as described above. The antenna element 11 is realized by a pattern conductor formed on one surface portion of the base material 18 formed of polyethylene to dimethacrylate (PET) in the thickness direction. 1C 1 7 is disposed, for example, at a central portion of the antenna element 1A, and is electrically connected thereto. 1C 1 7 has at least a memory unit and a control unit. The memory can be memorized in the memory section. The control section allows the memory section to memorize information or read information from the memory section. The IC 17 responds to the command indicated by the electromagnetic wave signal received by the antenna element u, memorizes the information in the memory unit, or reads the information stored in the memory unit, and gives the signal indicating the information to the antenna element. The base material 18 is formed in a rectangular plate shape. The antenna element 11 is provided in the center portion of the base material 18 so as to extend in the longitudinal direction. The thickness of the layer of the antenna element 11 and the IC 17 is 1 nm or more and 5 μm or less. The thickness of the layer of the substrate 18 is o.i μm or more and 2 mm or less. It is also possible to directly print and process the antenna element 在 on the sheet 10 without using a substrate. The tag body 33 is composed of the antenna elements 11 and 1C17 and the substrate 18. The label body 33 is mounted on an adhesive tape having an adhesive property or the like for packaging. The label 30 is constituted by the label body 33 and the sheet 1〇. In Fig. 4, only the outline of the label main body 33 is laminated in a state in which the sheet body 1 is attached. Although not shown in FIG. 4, the label body 33 (the structure which does not include the substrate 18) and the 115092.doc-41 · 1334670 溥 sheet body 1 使用 use an adhesive or an adhesive, but it may also be a label. One or both of the body 33 or the sheet 1 are adhesive or adhesive, and are attached. The label main body 33 has a surface portion on the opposite side to which the antenna element 丨丨 and the IC 丨 7 side are provided, and the sheet body 10, and the shield layer 13 of the sheet 1 与 and the conductor layer 14# layer are bonded from the opposite side. The bonding structure between the sheet 1〇 and the label main body is not particularly limited, and bonding can be carried out using an adhesive containing an adhesive and an adhesive. The structure in which the sheet 10 is combined with the label body 33 is omitted in Fig. 3. The label 30 sequentially laminates the layers of the antenna elements 11 and 1C 17 , the layer of the substrate 18 , the shield layer 13 , the anchor layer 16 , the conductor layer 14 , and the adhesive agent layer 15 from one side to the other in the thickness direction. The sheet 1〇 and the base material 18 are formed in the same rectangular shape. The label body 33 may be in the direction of Fig. 4 or may be the same as the upper surface of the drawing, which is the same as described above. The antenna element 11 can transmit an electromagnetic wave signal in a direction intersecting the extending direction of the antenna element ,, and receive an electromagnetic wave signal coming from a direction crossing the extending direction of the antenna element U. In the present embodiment, the electromagnetic wave signal can be transmitted in the transmission/reception direction A opposite to the transport substrate 18 and the sheet 1 by the antenna element i1, and the electromagnetic wave signal from the transmission/reception direction A can be received. The transmission and reception direction A shows the main direction, but the direction is not limited because there is a case where communication is performed by rewinding the radio waves. The tag 30 is an information management device as a reader, for example, an electromagnetic wave indicating information to be memorized in advance (hereinafter referred to as "main information") and information on a memory command (hereinafter referred to as "memory command information"). After receiving the signal from the antenna element 11, the electrical signal indicating the main information and the memory command information is given to the IC 17 from the antenna element 11. The control unit of the 1C tag 17 memorizes the information according to 115092.doc -42- 1334670, so that the memory unit remembers the main memory. Information β In addition, when the information from the information tube (hereinafter referred to as "memory 2:: transfer information in memory") electromagnetic information: ",) = information (hereinafter referred to as "transfer refers to the instruction information of the electrical The signal will be sent from the antenna element 11 to the IC17. The control unit of the 1C standard 17 is based on the transmission of the number of times # * 彳 not wearing the private order information to read the memory (recorded information), The electric signal indicating the electric signal of the potted Iraqi capital " °, and the hidden secret is given to the antenna element

11. Thereby, the electromagnetic number indicating that the information is not stored is sent from the antenna element 11 僖 #屮矣11. . For example, the above-mentioned 'tag 30 is an antenna element and an electronic information transmission device that transmits and receives electromagnetic wave signals. The tag 30 can be a battery-driven tag driven by a built-in battery. It can also be a battery-free tag that returns an electromagnetic wave signal using the loss of the received electromagnetic wave signal.

Such a label 30 is provided with a sheet 10 in order to prevent it from being used in the vicinity of the communication member 12. The sheet 10, as exemplified, is disposed on the opposite side of the antenna element 11 in the conveyance/receiving direction Α. The sheet 1 is attached to the obstructing communication member 12 by using the adhesive layer 15. In this label, the sheet body (7) is disposed closer to the side of the communication member 12, instead of the antenna element, and the sheet is disposed between or disposed between the antenna element and the obstructing communication member 12, or near the antenna element. . Fig. 6 is a cross-sectional view showing an electric field formed in the vicinity of the antenna element 11 in a state in which the label 3 is attached to the obstructing communication member 12. Fig. 7 is a cross-sectional view showing an electric field H5092.doc • 43-1334670 formed in the vicinity of the antenna element 不 in a state in which the antenna element 11 and the 1C tag 17 are disposed adjacent to the communication member 12 without the sheet member 10. In Fig. 6, for the sake of easy understanding, the structures other than the antenna elements 11, 1C, 17 and the shield layer 13 in the structure of the label 3'' are omitted. There is no free space in the vicinity of the antenna element ^ that hinders the communication member 12, due to the antenna element. The electric field generated by the potential difference between the both end portions 11a and 11b is directly expanded in the space to form a magnetic field due to the change in the intensity of the electric field, and an electric field is formed due to the change in the strength of the magnetic field. The antenna element 11 can transmit electromagnetic waves by the principle that the formation phenomena of such an electric field and a magnetic field are continuously repeated in order. Further, the antenna element 丨i can receive electromagnetic waves of a resonance frequency by using the principle opposite to the transmission principle. As shown in Fig. 7, the electric field generated at both ends of the antenna element 11 when the communication element 12 is obstructed is present in the vicinity of the antenna element 11, and the electrical influence received from the obstructing communication member 12 cannot be ignored, although it depends on the frequency. However, a short circuit (sh〇t) phenomenon may occur in the frequency domain above the MHz band, with the result that all the impedance of the antenna element 11 is thus lowered. In other words, in a state where a potential difference is generated between both end portions 11a and 11b of the antenna element 11, the both end portions 11a and 11b of the antenna element 11 are in a state of being positively or negatively charged, whereby the antenna element 11 is provided. Both end portions 丨丨a '丨丨b and an electric field are formed between the portions 12a and 12b that interfere with the communication member 12 and the end portions Ua and lib of the antenna element 对, and become two with the antenna element 11. The ends 11a, lib are positively and negatively opposite to the electrified state. On the antenna element u, an alternating voltage is applied from 1C, and both ends na, Ub are positively or negatively alternately charged, and in synchronization with this, the positive or negative interaction of the portions 12a, 12b on the communication member 12 is prevented from being electrified. Hereinafter, in FIGS. 6 and 7, the left end portion of the antenna element 11 is referred to as an end portion 11a, and the right end portion is a further end portion 丨丨b, which is said to hinder the left portion of each portion 12a, 12b of the communication member 12. For one side 115092.doc •44· 1334670 minutes 12a 'The right part is the other side part 12匕β

When a minute time is observed, a current m ′ is generated from the other end portion (1) of the antenna element η to the one end portion 11a while the communication member 12 is hindered, and a current i 12 from the one side portion 12a to the other side portion 12b is also generated. A reverse current is generated as described above. As described above, the antenna element " exerts an alternating voltage by 1C, so that a state of a current in the direction shown in Fig. 7 occurs, and a state in which a current opposite to the direction of Fig. 7 is generated interacts. The higher the frequency, between the one end portion 1 u of the antenna element 11 and the one side portion i2a of the obstructing communication member 12, and the other end portion Ub of the antenna element 11 and the other side portion 12b of the obstructing communication member 12, almost In a state equivalent to the generated current 1〇, between the one end portion i la of the antenna element 11 and the one side portion 12a of the obstructing communication member 12 and the other end portion of the antenna element n and the other obstructing the communication member 12 Between the one side portions 12b, a state equivalent to a short circuit, that is, a state of being short-circuited at a high frequency. This high frequency short circuit phenomenon

When a high-frequency voltage is applied to a capacitor, the 35-hour state is the same state, which is the same phenomenon. When the above-described high frequency short circuit occurs, the closed circuit is formed by the antenna element 11 and the obstructing communication member 12, and the current 値 is further increased as compared with the case where the communication member 12 is prevented from being in the vicinity. That is, the impedance is lower than when the vicinity of the antenna element 没有 does not interfere with the communication member 12. Let the impedance be z, the voltage 値 be V, the current 値 be I, then the impedance 2; for 2=¥/1, the decrease of the impedance Z can also be confirmed by the increase of the current 値. This impedance 2 is the impedance of the circuit formed by the antenna element n and the blocking communication member 12, but is also the input impedance of the antenna element constituting the circuit. Therefore, when there is a hindrance to the communication member 12 in the vicinity of the antenna, 115092.doc -45· 1334670 will lower the input impedance of the antenna element 11. On the other hand, as shown in FIG. 6, when the sheet 10 is provided between the electric field type antenna element 11 and the obstruction communication member 12, the both ends Ha and llb of the antenna element 带 are charged, and the communication member 12 is hindered. The electric field strength formed between them becomes small. Therefore, the formation of the high-frequency short-circuit circuit is weakened, and the decrease in the input impedance of the antenna element 抑制 is suppressed. The decrease in the input impedance is suppressed, and the current 値 from the current generated by the antenna element 11 is close to the absence of a small 値 which hinders the communication member 12 from being confirmed. Such as described above, the reduction in input impedance can be suppressed by using the sheet i 0 . The inventors of the present invention used the material number μ, μ", ε', ε" of the first embodiment shown in Table 1 and Fig. 3 to form the antenna element 11 having a dipole antenna in the vicinity of the metal barrier communication member 12. At the time of the sheet element 1 爽 between the antenna element u and the obstructing communication member 12 or in the vicinity of the antenna element, the impedance recovery degree of the antenna element 11 is calculated by an electromagnetic field simulator (Sonnet). The structure used for the simulation is shown in Figure 4. The conductor layer 14 has a copper (Cu) plate of a metal plate, and is provided with a 50 μΓ thick adhesive layer 16 and a 5 μm thick shield layer 13 which is disposed as an antenna on a 100 μm thick ρ ΕΤ film as the substrate 18 . The antenna element of element 11. As a result, the input impedance is 126 Ω (the frequency at which the reactance element is zero at 丨 GHz), and the radiation efficiency is 3% (gain _12 6 dB). The sheet body 10 is provided between the electric field type antenna element Η and the obstructing communication member 12. When the antenna element 11 is disposed in the vicinity of the obstructing communication member, the antenna element wheel caused by the member having the portion including the conductive material can be suppressed. The impedance of the input is reduced. If the sheet 10 is not used, the electric field type antenna element will hardly operate in the vicinity of the communication member 12 and cannot be used for wireless communication. Its 115092.doc •46- 1334670

The reason is that the wheel-in impedance of the electric field type antenna element u is greatly reduced. If the input impedance of the electric field type antenna element η becomes small, the impedance of the IC 17 that communicates with the electric field type antenna element U will be differential, and the electric field type antenna element " and IC17 will not be able to receive the signal. The sheet 1() can suppress the decrease in the input impedance of the antenna when the antenna element (10) is placed in the vicinity of the member having the portion containing the conductive material. Since it is an electric field type antenna, it is desirable to increase the electric induction rate and the induced electric loss. However, to increase the induced electric loss (tanSe=£"/ei), it is necessary to increase the imaginary part of the composite relative permittivity ε", but if the imaginary ratio of the composite relative permittivity If the ε" is greater than necessary, the conductivity will increase and the possibility of a short circuit will increase. In addition to the electric induction rate, the present invention. A method of controlling the permeability is also selected to efficiently restore the impedance. That is, the electric induction rate and the magnetic permeability are used in combination to avoid excessively improving the conductivity, and the communication improvement effect can be obtained. Therefore, by using the sheet 10 and using the electric field type antenna element u, wireless communication can be smoothly performed even if the vicinity of the communication member 12 is hindered.

Specifically, when the antenna element 11 is a dipole antenna, the IC 17 is connected to the central portion of the dipole antenna, and the impedance of the IC 17 is, for example, 4 〇 Ω or 50 Ω. In order to achieve integration with this impedance, at least the impedance of the antenna needs to be around 1 〇 Ω. When the metal is brought close to the antenna element 11, the resistance will decrease and the impedance will become smaller. In the calculation example, when the sheet body is not used, the impedance is 〇 85 Ω when there is only a 0.53 mm thick electric current between the antenna element 丨丨 and the obstructing communication member 12. This number is much smaller than, for example, 40 Ω. In order to simplify the structure in the tag 30, the antenna element 11 and the IC 1 7 are connected in a straight direction. There is no circuit for impedance adjustment on the way. Therefore, the difference in impedance described above is a fatal factor. On the other hand, by providing the sheet 10', the drop of the input impedance of the antenna element 11 can be suppressed to 115092.doc -47-. In order to suppress the attenuation of the electromagnetic energy, the occurrence of the β-knife in the energy attenuation, the adjustment of the composite relative magnetic permeability of the sheet 10 is high, the real part is μ, to concentrate the magnetic field, and to reduce the The concentration of the concentrated magnetic field is not converted into thermal energy. When the complex magnetic permeability of the sheet 1 is adjusted as described above, the effect of suppressing the attenuation of the electromagnetic energy is more easily obtained than when the composite relative permittivity of the sheet 10 is adjusted. The reason is that the closer the magnetic field is to the I source, the stronger it is. Therefore, even if it is a thin sheet, it is effective to adjust the composite relative permeability. Furthermore, by suppressing the loss of electromagnetic energy, the antenna characteristics of the antenna element 12 can improve the radiation efficiency. The radiation efficiency can be η = 1 〇 (beneficial - directional gain) / 1 〇. The directional gain is the gain without loss of metal, etc. Gain (usually referred to as Gain only refers to this.) The "true gain" of the loss is included. As a result of the calculation, it is known that in order to improve (improve) the radiation efficiency, it is only necessary to reduce the loss. In addition, the radiation resistance of the antenna is _, and the loss resistance is R1 〇 SS, and the radiation is emitted. Efficiency n = Rrad / (Rrad X Rl 〇 ss). Since Rrad is equivalent to the resistance of the input impedance of the lossless antenna, when the metal is brought close to the antenna element 11, the radiation efficiency is lowered. Therefore, since the antenna element 11 is suppressed The reduction of the input impedance improves the radiation efficiency. Furthermore, the length of the antenna element 11 is affected by the composite relative permittivity of the sheet 1〇 and the wavelength shortening effect caused by the composite relative permeability, so the frequency is required to be readjusted. In consideration of the effect of this wavelength shortening, strict manufacturing conditions must be met. In order to avoid this phenomenon, the real part of the composite relative permittivity which seeks the tendency of large numbers of plants must be exhausted. The amount is a decimal number. 115092.doc -48· In addition, a dipole antenna can be used for the antenna element 11. Thereby, a simple and small dipole antenna can be used in the vicinity of the communication member 12 to prevent incoming communication. The sheet body 10 is provided with a shielding layer 13 for the electromagnetic wave used for wireless communication, the real part μ of the composite relative magnetic permeability, and the imaginary part of the composite relative magnetic permeability μ" is μ' g μ", ideally compound The real part μ' of the relative magnetic permeability is 5 or more and the magnetic permeability loss term, and more preferably, the real part μ of the φ composite relative magnetic permeability is 20 or more and the magnetic permeability loss term ΐδηδμ~0·5. The shielding layer 13 has an actual relative capacitance ratio of the electromagnetic wave used for wireless communication, and the real part ε is 20 or more. Further, the electromagnetic layer used by the shielding layer 13 for wireless communication has an imaginary part ε" of the composite relative permittivity of 300 or less. When the antenna element 11 is disposed in the vicinity of the obstructing communication member 12, it is possible to suppress the decrease in the input impedance of the antenna element 11 caused by the interference with the communication member 12, and it is possible to suppress the realization. A sheet that obstructs the loss of electromagnetic energy by the communication member U. • Although omitted in the graph, the real part of the composite relative magnetic permeability of the 950 ΜΗΖ band is 50, and the simulation result of the radioactivity of the magnetic permeability loss term is For example, the input impedance is 13 Ω (the frequency at which the reactance is zero at 1 GHz) and the radiation efficiency is 8% (gain _51 dB). Figure 8 shows the sheet 1 when the dipole antenna is used as the antenna element 11. In the simulation for the effect of 〇, a cross-sectional view showing the structure of the assumed sheet 10 is shown. In this simulation, the sheet 1〇 has only the shield layer 13, and the antenna layer corresponding to the substrate 18 is interposed on the antenna element Η. A sheet 1 (shield layer 13) is provided, and the sheet 1 (shield layer 13) is disposed between the antenna element & the metal plate: 115092.doc • 49· 1334670, which hinders the communication member 12, in the sheet Direct stratification on the body 〇 (shield layer 13) hinders the structure of the communication member 12, simulating the communication state. Fig. 9 is a graph showing the relationship between the display result of the configuration of Fig. 8 and the real part (1^&1) and the imaginary part of the input impedance of the antenna element 11. The frequency at which the imaginary part of this input impedance is zero is the resonance frequency (953 MHz in Fig. 9). Fig. 1 shows the simulation result produced by the structure of Fig. 8 as a graph showing the directivity gain. Figure 为 is a graph showing the simulation results produced by the structure of Figure 8, and is a graph showing the absolute gain. Table 1 shows the material constants for the various layers in the structure of Figure 8. The material number is 値 at a frequency of 950 MHz. [Table 1] Layer thickness (mm) ε1 tanSs μ丨ίαηδμ Conductivity σ Substrate 18 1 1.1 0.01 1 0 0 Sheet 10 (shield layer 13) 0.5 100 0.01 50 0.01 1.00Ε-04 Φ In this simulation 'as equivalent In the dielectric layer of the substrate 18, it is assumed that the real part ε of the composite relative permittivity of a 95 〇 MHz band is ι·ι and the electric conductivity loss term tan5s=0.01 layer thickness of 1 mm (such as styrofoam foaming) Body layer), assuming that the real relative capacitance of the 950 MHz band has a real part ε of 100, and the induced current loss term tan5s=0.01, the real part of the composite relative magnetic permeability μ′ is 50 and the magnetic permeability loss term tanSp=0.01, conductive The shielding layer 13 of the rate i〇_4 [g/m]. An electric conductor layer (substrate i8) is disposed on the end of the antenna element 11, and a screen 115092.doc • 50-1334670 is laminated as a sheet 1 on the opposite side of the antenna element 11 on the electroconductive layer. As a result of this simulation, the input impedance (real part) is 3 〇〇Ω at a frequency of 905 MHz at which the imaginary part (reactive element) of the wheeled impedance is zero, and the directivity gain is 6.696 dBi (Fig. 1〇0 ( Theta) = O time), the absolute benefit is 0.266 dBi (the e (Theta) = 0 in Fig. 11), and the radiation efficiency is 22.53%. The metal corresponding problem of the electric field type antenna element 11 is also hindered. The problem of the communication member 12 'The method of using a magnetic sheet is not proposed in the prior art. The reason for this is that the electric field type is mainly used in the electric field type antenna element, and the electric attraction rate which is undoubtedly effective for the electric field is discussed, but the effect of the magnetic permeability is not focused. That is, the impedance recovery effect of the sheet having magnetic permeability is not known in the past. The impedance recovery effect by the magnetic permeability (also using the electric attraction rate) is large, and since it is disposed in the vicinity of the communication member 12, the input impedance of the antenna element 降至 is reduced to near 0 Ω, but by the composite relative conduction of the sheet 11 The real part μ of the magnetic permeability is 10 or more (in the high MHz band or the 2.4 GHz band), and can be raised to the vicinity of several 10 Ω. By means of the 'communication means and the inherent impedance of the 1C connected to the antenna element, for example, 3 〇 Ω and 50 Ω can be integrated. First, the resonant circuit including the antenna element will be operable. Then, in terms of loss of electromagnetic energy, the larger the number of imaginary parts of the composite relative magnetic permeability of the shield layer 13 is, the larger the loss is, and as a result, the radiation efficiency of the antenna element 11 is lowered. The magnetic permeability loss of the composite relative magnetic permeability If the term ίαηδμ is 1 or less (in the high mHz band or the 2.4 GHz band), the loss will be slightly reduced. 'If the magnetic permeability loss of the composite relative permeability is below 〇5 (in the high MHz band or 2.4 GHz band), the electromagnetic energy The loss will be less, and the radiation efficiency of the antenna element 11 is improved. The real part ε of the composite relative permittivity of the shielding layer 13 and the real part μ' of the composite relative permeability can promote the wavelength of the antenna element. The shortening effect is such that the real part 6_ of the composite relative permittivity is 2 〇 or more, and the size of the antenna element 11 can be shortened to about 4.4. The imaginary part ε of the composite relative permittivity of the shield layer 13 is 3 〇〇 to ε = ω ~—

Here, ω represents the angular frequency (<0=2nf), ε〇 is the vacuum induction rate (8854ΐ X l〇12[F/m]) 'f is the frequency [Ηζρ The shielding layer of the present invention is not a conductive material but is induced The formula for the formation of the conductive material and the conductive material is calculated to obtain the conductivity at the frequency of 950 MHz (5) 5·9 s/m (resistivity _ 〇 6 (4), and the conductivity at a frequency of 2.4 GHz is 39.9 s/m (resistivity jin) 〇〇2 Ωιη). The conductivity below these can be roughly regarded as having the resistivity of the above. In addition, the shielding layer 13 is at least one of a soft magnetic metal, a soft magnetic metal oxide, a magnetic metal, and a magnetic metal oxide. A material formed or a material containing the same. The method of discovering the magnetic property is not particularly limited, and the material can be directly used or dispersed in the direction of the bonding material. According to this structure, the foregoing characteristics can be obtained. Therefore, it is possible to realize a sheet body 1 which can achieve the above-described excellent effects. Further, since the sheet body 10 has the conductor layer 14, the state of the conductor layer 14 formed of a conductive material exists in the vicinity of the antenna element under, In combination with the frequency of the electromagnetic wave used for the wireless communication described above, the real part μ of the composite relative permeability of the shield layer 13 and the imaginary part μ" and the real relative part ratio ε of the complex relative permittivity 115092.doc -52-1334670 and the imaginary part are adjusted. ε" Thereby, good characteristics of the shield layer 13 can be achieved. Therefore, wireless communication can be realized more smoothly in the vicinity of the communication member 12. In addition, by combining the dipole antenna and the sheet 10 as the antenna element 11. 'The size of the antenna element 11 can be reduced. The height of the composite relative magnetic permeability of the sheet 1 μ and the real part ε of the composite relative permittivity, and the wavelength shortening effect, It is more compact than existing products. The dipole antenna is linear and can have curved and bent parts, and the total length is λ/2. For example, the length of 95 0 MHz is about 15 _ 8 cm, plus this The wavelength of the sheet is shortened, and it can be a linear element of about 3 to 1 ,, and by bending, it can be a size of about 2 to 3 cm. It can be further miniaturized. Attachable pair Expanded to a wide range. Antennas in existing products that interfere with the action of the communication member 12 have flat antennas. However, the size of the flat antenna requires χ/2 on each side, for example, at 950 MHz, and the square shape is about 15.8 cm square. Specifically, the size of the card cannot be accommodated, and the size of the card is too large. The distance between the flat plate and the grounding conductor is generally required to be λ/16 to λ/64, which cannot be used for applications requiring small size and flexibility. A perspective view of a tag 3A according to another embodiment of the present invention is schematically shown. The tag 30 shown in Fig. 12 has a structure similar to that of the tag 3〇 illustrated in Figs. i to u, and the same reference numerals are given to the corresponding structures. the difference. The tag 3A illustrated in Figs. 1 to 11 uses a dipole antenna as the antenna element 11, but the tag 3A shown in Fig. 12 uses a monopole antenna as the antenna element 11. The dipole antenna is located at the central portion of the antenna element i, that is, the structure of the IC 17 is formed between the two element pieces constituting the antenna 115092.doc • 53-1334670, and the monopole antenna is the two element pieces described above. In one case, the structure is replaced by the grounding plate 100. The label 3 constructed using such a monopole antenna can achieve the same effect as the label 30 constructed using the above-described dipole antenna, and the same sheet thickness can be obtained. Furthermore, it can be more miniaturized than when a dipole antenna is used. In the above, by using the sheet 1 , the label 30 using the antenna element 贴 is attached to the obstructing communication member 12, etc., and is disposed in the vicinity of the 通讯 ' ' 在 在 在 在 在 在 在 在 在 在 在 在 在 在 在 在 在 在 在 在 在 在 在In the state, the label 3〇 can be used. Therefore, the label 3 can be attached to, for example, a beverage product containing a beverage in a metal container that blocks the communication member 12 shown in Fig. 13, and can be used for purposes such as product management. Further, the tag 3A may be built in an electronic device 41 such as a mobile phone device that blocks the communication member 12 such as a substrate as shown in Fig. 14, and may be used for, for example, product management or user authentication to prevent theft. Such as the above, it is possible to ensure the wide use of the label 3, and to realize the convenience label 30. Further, since the sheet 10 is squeaky as described above, it can be arbitrarily deformed. Therefore, the restrictions on setting the place are reduced and can be used for a wide range of purposes. For example, when attached to an article, it can be provided in accordance with the shape of the article. For example, as shown in FIG. 13, the communication member 12 is prevented from being attached to the surface of the article having a cylindrical outer surface, such as a beverage. Shape and attach. Therefore, the installation position of the sheet 1〇 is reduced, and the installation work can be easily performed. In the case of use as the label 3, the other constituent materials are appropriately selected so that the label 3 is entirely wrapable, and can be attached to the surface of the cylindrical surface. 115092.doc •54· 1334670 In addition, since at least the package 5 of the sheet ίο is free from use on the article, it can be installed. Thereby, the sheet can be easily easily produced by using the sheet 10 and the electrons having the same. A surface portion is provided with adhesiveness, and is adhered to the article by the adhesive property adhered to the article. Therefore, the operation of the information transmission device makes it possible to make the sheet 1G incombustible. An electronic information transmission device that includes the target iron % and uses the antenna element for wireless communication, sometimes needs to be difficult

Flammability. The sheet 10 can be applied to such a use requiring flame retardancy. Further, the environment in which the sheet is used may be used in the vicinity of a mechanism which is a heat source such as a communication mechanism including ici7 and a power source mechanism. The heat resistance of the sheet H) is excellent, and the heat generated by the mechanism which can be dissipated as a heat source suppresses the temperature rise of the mechanism of the heat source and prevents the performance from being lowered due to exposure to high temperatures.

Further, the sheet 10 has heat resistance and t gas insulation. Regarding heat resistance, especially when used in automobiles, it is used at 13 G ° C, and it is necessary to use it at this temperature without deterioration. The heat resistance can be achieved by adding a bridge material and bridging the bonding material. The method of bridging is not limited (4). For example, the type of the bonding material and the bridging material can be appropriately combined to achieve the above-mentioned heat resistance (for example, 2GG ° C:). Further, an organic and inorganic insulating material can be used as a bonding material to coat the soft magnetic metal powder, whereby the soft magnetic metal dispersed in the sheet can improve the electrical insulation of the sheet cutting without direct contact. When the electrical conduction is made, it will generate eddy current itself, which will attenuate the magnetic energy. Further, since the circuit and the plating case (ground) are arranged in close proximity, if the sheet 1 is electrically conductive, it can be turned on, which hinders the operation 115092.doc - 55 - 1334670. In order to prevent the above phenomenon, the sheet 10 has a surface resistivity of 102 Ω/□ or more for the purpose. Fig. 15 is a plan view schematically showing a label 3 of still another embodiment of the present invention. The antenna element 此时 at this time is formed by a ring-shaped loop antenna, and is connected to 1C 17 . Figure 16 is a cross-sectional view showing the label 30 of Figure 15 . The label 30' shown in Figs. 15 and 16 has a structure similar to that of the label 3' described in Fig. 14, and the same reference numerals are given to the corresponding elements, and only the differences will be described. In the tag 3A shown in Figs. 15 and 16, a loop antenna is used as the antenna member 11 and laminated on the substrate 18. Further, in the label 3 of FIGS. 15 and 16, the sheet 10 has only the shield layer 13, and the sheet 1 (shield layer 13) is provided on the antenna element 11 via the substrate 18. Fig. 15 and Fig. 16 show a state in which the two labels 3 are arranged in a direction perpendicular to the thickness direction in a state in which the two labels 3 are in contact with each other. The two tags 30 shown in Fig. 15 have the same structure, but in order to facilitate the easy understanding of the following month, in Fig. 15, the antenna elements 丨丨 and ic 17 of the label 3 左侧 on the left side are added. Add the b" to the antenna element 丨丨 and the verb of the label on the right side. In the article, use this added text to identify when you need to identify it. If you do not need to recognize it, do not use the added text for explanation. As shown in Fig. 15 and Fig. 16, in the state in which the plurality of standard irons 3 () are arranged close to each other, for example, a plurality of articles are placed in a dense state, and a state in which the tags 30 are mounted on each of the articles A and the like. The article at this time is, for example, a test tube in which a sample is stored, and is accommodated in each of the fields of the test tube rack having a field in which the sample is arranged in a matrix. Each of the labels 30 is mounted on each test tube or test tube cover. In the case where the plurality of tags 3 are arranged in a dense state, for example, for one H5092.doc - 56 tags 30, the antenna elements u of the other tags 3 interfere with the communication means, but by the tags 30 The sheet body 10 is mounted on the upper surface, and the sheet 10 is placed near the antenna element u, thereby preventing a phenomenon in which communication failure occurs in each of the labels 3A. For example, the sheet body 1 can improve the communication environment of the antenna element n even if it is not disposed between the antenna element 丨丨 and the obstructing communication member, and is provided in the vicinity of the antenna element 11 between the other antenna elements n. . Fig. 17 is a graph showing the simulation results when the two labels 3 are arranged adjacent to each other as shown in Figs. 15 and 16 . Fig. 18 is a graph showing the simulation results when the two labels of the sheet 10 are not provided in the label 3 of Figs. 15 and 16 and are disposed adjacent to each other. Figure 17 is a graph showing the relationship between frequency and s-parameter 値. The unit of the S parameter 为 is dB, which is relatively large. Here, "su" indicates the ratio of the reflected power, and "S21" indicates the power that propagates between the antenna elements (between ICs 17). Specifically, "su" indicates that when two tags 30 are arranged in parallel as shown in FIG. 15, the power is supplied to IC17a (or IC17b) of one of the tags 30 of the left (or right) side, for example. The ratio of the power reflected by the IC17a (or IC17b) of the tag 30 on the left side (or the right side), "S2 1" indicates the supply of the IC 丨 7a (or IC 17b) of the tag 3 of the left side (or the right side). In power, the ratio of the power to the IC17b (or IC17a) of the tag 3 to the right (or left). A state in which such power is transmitted from one 1C 17 to the other 1C 17 is referred to as a combination in the present invention. In the case of Fig. 15, the two tags 30 have the same configuration. Therefore, S11 and S21 when the IC 17a of the tag 30 on the left side is powered, and S11 and S21 when the 1C 17b of the tag 3 of the right side are supplied with power are the same. Counting. In addition, the "single coil S11" indicates that the label 30 shown in Fig. 15 is a single body existing in the free space 115092.doc 57· 1334670. Table 2 shows that the number of materials of each layer set in the simulation is 2.4 GHz. The frequency is 値. [Table 2] Layer thickness (mm) ε' tan6e μ" ίθηδμ Substrate 18 —^_ tl , 0.5 3 ------- 0 — 1 ------ 薄片 Sheet 10 (shield 13) 2 12.31 0.072 3 U 0.43 . Each material was set in this simulation. Using the sheet 1 of the present invention, the bonding characteristics between the adjacent two loop antennas and the antenna element n were evaluated. At the time of the simulation, the shield layer 13 was kneaded by adding a few base irons 53 (parts) to the polyvinyl chloride 100 (part), and f-sheeting was completed. The shield layer 13 is determined by the coaxial tube method, and the real part of the composite relative permittivity is 2.4'31' at 2.4 GHz and the induced ratio & lost item tanSe=G Q7, composite relative permeability The real part of the μ is 3.°' and the magnetic permeability loss term t_=0.43. This material is used in the simulation. As shown in Fig. 18, when the two antenna elements U are arranged close to each other, the discharge lines of S11 and S21 are double-peaked, have peaks before and after the original communication frequency, and reduce communication characteristics at the communication frequency. . For the loss of communication electromagnetic energy - for example. This is due to the combination between the antenna elements u. On the other hand, as shown in Fig. 17, if the sheet 1 is stacked, the bimodality is lost, and the communication characteristics can be improved. Although this mechanism is only speculation, there may be a change in the radiation pattern of the electromagnetic wave caused by the sheet 10, a change in the antenna operation due to the shortening of the wavelength of 115092.doc • 58- caused by the shield layer, and a shield layer. The impact of the loss component and so on. In any case, the improvement in the communication environment due to the sheet job is extremely significant. There are two antenna elements 11 (tags 30) in the vicinity, as described above, in the reading mode of the tag 30 (interrogator) in a dense state, the antenna elements 11 of each other become obstructive communication members, especially The problem caused by the combination is a problem. By laminating the sheet 10 of the present invention on the antenna element stack,

It has been found to have the possibility of mitigating the bond between the antenna elements u. In this example, the sheet 10 is not disposed between the antenna element u and the obstructing communication member, but is disposed in the vicinity of the antenna element 1!. In the state in which the two tags 3G are juxtaposed in Fig. 15 to Fig. 18, the state of the electronic information transmitting device such as a layered card type answering device can be improved in the same manner as described above. The foregoing embodiments are merely illustrative of the invention and may be modified. For example, the layered structure can also be changed. Specifically, the structure of the shield layer 13 on the opposite side to the conductor layer 14 or the like may be provided with another adhesive layer having the same structure as the adhesive layer. When such a sheet 1 is used for a label, when the label member 30 is attached to the label main body 33 on which the antenna element 丨丨 and the antenna element 33 are mounted, the adhesive 30 can be used without using an adhesive. Apply layering to make the job easier. Such as the above, the sheet (4) is easily attached to the electronic information transmission device, and the sheet setting and installation work can be made easier. The sheet body ‘ can be used for the sheet body ’, and the labeling agent layer 15 is attached to the label main body 33 when attached to the label 3 。. In this case 115092.doc -59- a layer of adhesive, on top, if there is no other - use this additional layer of adhesive attached to the article attached to the article attached to the article 'can also use adhesive The agent or adhesive is not necessary to select the adhesive layer 15 and another adhesive layer, and the agent is added to the shield layer 13 or the like. The sheet 1 is imparted in the equal layer. Surface adhesion or external connection, can also be a method of inflammability, in addition to the structural properties of adding a flame retardant, for the screen; ~ structure ° another 'slice 10 minimum must have the performance of the shielding magnetic field, about other Performance, not necessarily required, or a structure that is not available. In addition, the use of the sheet 1 并 并 以外 ( ( ( ( ( 四 四 四 四 四 四 四 四 四 四 四 四 四 四 四 四 四 四 四 四 电子 电子 电子 电子 电子 电子 电子 电子 电子 电子 电子 电子 电子 电子The structure. In addition to the standard iron 30, the Ray+ Consulting ##s communication device has, for example, an antenna with a shared RFID system, a reading device, a refill/writer, a mobile phone device, a ship, and an electric material. However, in addition to this, it is also possible to use the antenna device A for the burglary prevention device, the communication such as the human remote control operation, the in-vehicle coffee, and other wireless devices using the radio wave using the radio wave. As mentioned earlier, the frequency is not limited to the radio wave domain. In addition, after the y, the use of the 4-piece 10 is not limited to electronic information.

The communication device can be widely used in applications where J, 丨 _ Q should be shielded from the magnetic field. Further, the standard woven fabric 30 may be an article having the obstruction of the communication member 2 other than the above-described articles. When a conductive conductor layer is laminated on the sheet 1 ,, the antenna can be used as long as it adjusts the resonant frequency of the antenna to perform wireless communication in the vicinity of the 115092.doc -60· member having a portion containing the conductive material. Function. The adjustment of the resonance frequency of the antenna can be performed using a well-known method. It is also possible to change the structure other than the change example. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a cross-sectional view schematically showing a sheet 1 of an embodiment of the present invention. Fig. 2 is a cross-sectional view showing an enlarged internal structure of the shield layer 13. Fig. 3 is a graph showing the measurement results of the material numbers μ, μ ", &ε" of Example 1. Fig. 4 is a cross-sectional view schematically showing a label 3 of the sheet body 10. Figure 5 is a perspective view showing the label 3〇. Fig. 6 is a cross-sectional view showing an electric field formed in the vicinity of the antenna element 11 in a state where the label 3 is attached to the upper side of the blocking member. Fig. 7 is a cross-sectional view showing an electric field formed in the vicinity of the antenna element n in a state in which the antenna element 丨丨 and the label η are placed in the vicinity of the communication member 12 without interposing the sheet 10. Fig. 8 is a cross-sectional view showing the structure of a tag 3's assumed in the simulation for confirming the effect of the sheet 10 when a dipole antenna is used as the antenna element. Fig. 9 is a graph showing the relationship between the display frequency and the input impedance of the antenna element, based on the simulation result of the configuration of Fig. 8. Fig. 10 is a graph showing the results of the simulation according to the structure of Fig. 8, showing the gain of directivity. Figure π shows a graph showing the absolute gain of 115092.doc • 61· 1334670 according to the simulation results of the structure of Fig. 8. Fig. 12 is a perspective view schematically showing a label according to another embodiment of the present invention. Fig. 13 is a perspective view showing the beverage product 40 on which the label 3 is attached. Fig. 14 is a perspective view showing the electronic device 41 in which the tag 3 is built. Fig. 15 is a plan view schematically showing a label 3 of still another embodiment of the present invention. Fig. 16 is a plan view showing the label 3 of Fig. 5; Fig. 17 is a graph showing the simulation results when the two labels 3 are arranged adjacent to each other as shown in Figs. 15 and 16 . Fig. 18 is a graph showing simulation results when the two labels of the sheet 10 are not provided in the label 3 of Figs. 15 and 16 and are disposed adjacent to each other. Figure 19 is a cross-sectional view schematically showing the label 1 of the prior art. Figure 2 is a schematic representation of prior art labels. [Main component symbol description] 10 Sheet 11 Antenna element 12 Interference with communication member 13 Shield layer 14 Conductor layer 15 Attachment layer 17 1C 20 Junction material 21 Magnetic powder 115092.doc -62- 1334670 22 Magnetic particles 30 Label 37 Magnetic field line 40 beverage 41 electronic device 115092.doc -63 -

Claims (1)

1334670 Patent Application No. 095136650. Chinese Patent Application Substitution (May 99), X. Patent Application Range: • 1·----------------------------------------------------- When the electric field type wireless communication is used, it is disposed between the antenna element and the portion near the member with the =2 member or near the antenna S, and the antenna element caused by the member of the material is low; the input impedance of the device降:中=Shielding layer, which is the real part μ of the frequency of the electromagnetic wave used for wireless communication, which is the real part of the composite relative permeability, and the real part ε of the composite relative permittivity is 20 or more. And the imaginary part ε" of the composite relative permittivity is 300 or less. 2. A sheet having characteristics characterized by the use of an electric field type, in the vicinity of a member having a portion containing a conductive material. When the "", the line is on" is disposed between the antenna element and the member having the portion including the conductive material or in the vicinity of the antenna element, the member having the portion including the conductive material is suppressed from being guided The loss of electromagnetic energy. The shielding layer is included in the frequency of the electromagnetic wave used for wireless communication, and the real part μ of the composite relative permeability is the imaginary part of the composite relative permeability, and the real part ε of the composite relative permittivity is 2 〇 Above; and the imaginary part ε" of the composite relative permittivity is 300 or less. 3. The sheet of claim 1 or 2, wherein the antenna element comprises at least one of a dipole antenna, an early pole "wire", a circular antenna, or an antenna of the above-described reflex-free construction portion. Spraying the sheet of item 1 or 2, wherein the electromagnetic wave for wireless communication is 115092-990519.doc 1334670 The frequency is included in the range of 300 MHz or more and 300 GHz or less β 5. 5. The sheet of claim 4, wherein The frequency of the electromagnetic wave for wireless communication is included in the range of 860 MHz or more and 1 GHzw. 6. The sheet of claim 4, wherein the frequency of the electromagnetic wave used for wireless communication is included in the 2.4 GHz band. The sheet of item K2, which comprises a shielding layer of a magnetic body. 8. The sheet of claim 2, which comprises a shielding layer, which is used in the frequency of electromagnetic waves of wireless communication, composite relative magnetic permeability The real part μ' is 5 or more, and the magnetic permeability loss term αηδμ is 1 or less. 9. The sheet of claim 1 or 2, comprising a shielding layer, which is used for frequency waves of electromagnetic waves used for ..., line communication, and the real part μ' of the composite relative material is 2 〇 or more, and The magnetic flux loss term "ηδμ is 0.5 or less. 1〇: the sheet of claim 1 or 2 contains a conductive conductor η.Γ': a sheet of item 1 or 2, wherein the shielding layer contains soft magnetic gold Human magnetic oxidized metal, magnetic metal, and magnetic oxidation: a material composed of any kind, or a material containing the same, as a magnetic material 12. The sheet 妒 of claim 1 or 2, 100 Cao~, where the screen layer contains For the organic polymer, the material is contained in an amount of 1 part by weight or more and 15 parts by weight or less or less; and a material selected from the group consisting of ferrite, iron alloy, and iron particles is used as the material of the magnetic material. : a sheet of claim 1 or 2 in which it is rendered flame retardant. 14. A sheet of claim 1 or 2 in which a heat conductivity is imparted 115092-990519.doc 15 16 17 18 • Or a sheet of 2, at least the surface of which is adhesive or An antenna device, characterized by comprising: a private % antenna 7C having a resonant frequency matching a frequency used for wireless communication; and a sheet of any one of claims 1 to 15. An electronic poor communication device characterized by the antenna device of claim 16. The electronic information communication device of claim 7 is used as a transponder mounted on an item in a dense state. 115092-990519.doc