Abstract: There are provided a high-permittivity dielectric raw material, an antenna device using the raw material and being useful as, especially, the built-in antenna device of a portable phone; a portable phone which can be reduced in weight, thickness and size, with an antenna radiation efficiency improved, and an electromagnetic wave shielding body for effectively shielding electromagnetic wave from an electric cooker. A dielectric raw material A having carbons dispersed in a silicone rubber base material 1, wherein, in any one of dielectric raw materials A, 1) containing 150 to 300 pts.wt. of carbons per 100 pts.wt.

Abstract: Solving Means A whole-body phantom A characterized by being obtained from a conductive rubber material comprising a rubber base and a conductive filler incorporated therein by molding the rubber material so as to copy the whole shape of a human body; and a process for producing a whole-body phantom, characterized by using a mold which conforms to the shape of a human body and is made of a fiber-reinforced plastic. Effect The whole-body phantom enables, with satisfactory handling, an examination of, e.g., influences of electromagnetic waves on the human body in various poses. The process for whole-body phantom production is suitable for use in producing such whole-body phantom.

Abstract: Provided is an electromagnetic shield sheet having an excellent electromagnetic shielding effect which can be sufficiently exhibited even when the sheet has a reduced thickness and a reduced weight. Furthermore, the electromagnetic shield sheet has an excellent molding efficiency and flexibility and can be used in a desired shape such as various shapes of a power supply box, an inner wall, or an electronic device for electromagnetic shielding. An RFID plate using the electromagnetic shield sheet is also provided. The electromagnetic shield sheet A has a polymer composition layer obtained by mixing a conductive material with a polymer material. The sheet A is formed by layering at least two of polymer composition layers 1, 2, 3 having different dielectric constants. The RFID plate is formed by layering the electromagnetic shield sheet A, an IC, and an antenna circuit.

Abstract: There are provided a high-permittivity dielectric raw material, an antenna device using the raw material and being useful as, especially, the built-in antenna device of a portable phone; a portable phone which can be reduced in weight, thickness and size, with an antenna radiation efficiency improved, and an electromagnetic wave shielding body for effectively shielding electromagnetic wave from an electric cooker. A dielectric raw material A having carbons dispersed in a silicone rubber base material 1, wherein, in any one of dielectric raw materials A, 1) containing 150 to 300 pts.wt. of carbons per 100 pts.wt.

Abstract: There are provided a method of controlling a specific inductive capacity for controlling the values of the real number portion and the imaginary number portion of the complex specific inductive capacity of a dielectric material, a dielectric material capable of acquiring a desired specific inductive capacity and having a specific inductive capacity according to that of each portion of a human body by utilizing the method of the controlling a specific inductive capacity, a mobile phone mounting the dielectric material as an electromagnetic wave controlling member, and a human phantom model having a specific inductive capacity according to that of each portion of a human body.

Abstract: A dielectric sheet is attached to the inner surface of the portable telephone housing. The dielectric sheet extends in the area between the user's head and a whip antenna of the portable telephone. The real part and the imaginary part of the relative dielectric constant of the dielectric sheet is properly selected such that the dielectric sheet can reduce SAR (Specific Absorption Rate) and improve antenna efficiency.

Abstract: A dielectric sheet is attached to the inner surface of the portable telephone housing. The dielectric sheet extends in the area between the user's head and a whip antenna of the portable telephone. The real part and the imaginary part of the relative dielectric constant of the dielectric sheet is properly selected such that the dielectric sheet can reduce SAR (Specific Absorption Rate) and improve antenna efficiency.