Abstract: A flexible substrate is wound around a magnetic core to define an antenna coil. A receiver coil including a first receiver coil portion and a second receiver coil portion which have opposite winding directions, and a transmitter coil including a first transmitter coil portion and a second transmitter coil portion which have opposite winding directions are provided on the flexible substrate. A region in which the receiver coil is provided and a region in which the transmitter coil is provided at least partially overlap each other when viewed in plan view, and non-coil-wound portions are provided between the first coil portions and second coil portions in the coils.

Abstract: A dielectric antenna is provided which uses a compounded material and exhibits a small change in relative dielectric constant at room temperature against a load due to temperature changes. The dielectric antenna includes a dielectric block, a radiation electrode, a feeding electrode and a fixing electrode provided on the dielectric block. The dielectric block contains a crystalline thermoplastic resin, ceramic powder, and an acid-modified styrenic thermoplastic elastomer. The acid-modified styrenic thermoplastic elastomer content in the dielectric block is 3% to 20% by volume.

Abstract: A flexible substrate is wound around a magnetic core to define an antenna coil. A receiver coil including a first receiver coil portion and a second receiver coil portion which have opposite winding directions, and a transmitter coil including a first transmitter coil portion and a second transmitter coil portion which have opposite winding directions are provided on the flexible substrate. A region in which the receiver coil is provided and a region in which the transmitter coil is provided at least partially overlap each other when viewed in plan view, and non-coil-wound portions are provided between the first coil portions and second coil portions in the coils.

Abstract: A dielectric antenna is provided which uses a compounded material and exhibits a small change in relative dielectric constant at room temperature against a load due to temperature changes. The dielectric antenna includes a dielectric block, a radiation electrode, a feeding electrode and a fixing electrode provided on the dielectric block. The dielectric block contains a crystalline thermoplastic resin, ceramic powder, and an acid-modified styrenic thermoplastic elastomer. The acid-modified styrenic thermoplastic elastomer content in the dielectric block is 3% to 20% by volume.

Abstract: A process for producing resin-coated metal particles includes coating surfaces of metal particles with silica; allowing a polymerizable group to adsorb onto the surfaces of the silica-coated particles by the use of a silane coupling agent; and coating the surfaces of the silica-coated particles with a polymeric resin by mixing the particles to which the polymerizable groups have been adsorbed, a polymerizable monomer, a polymerization initiator, and a dispersant to polymerize the polymerizable monomer and the polymerizable groups.

Abstract: A lens antenna including a lens body and/or a matching layer. In the lens antenna, lens body may be formed by a material containing thermoplastic elastomers. When a matching layer is formed on the surface of the lens body, at least one of the lens body and the matching layer is formed by a material containing thermoplastic elastomers. The use of thermoplastic elastomers in the lens body and/or the matching layer assist in reducing the formation of cracks therein.

Abstract: A lens antenna including a lens body and/or a matching layer. In the lens antenna, lens body may be formed by a material containing thermoplastic elastomers. When a matching layer is formed on the surface of the lens body, at least one of the lens body and the matching layer is formed by a material containing thermoplastic elastomers. The use of thermoplastic elastomers in the lens body and/or the matching layer assist in reducing the formation of cracks therein.

Abstract: Provided is a composite dielectric molded product exhibiting excellent properties such as the antenna gain and side lobe, etc. when used for a lens antenna, and exhibiting less variation of properties in one individual product and between individual products. The composite dielectric molded product is formed by molding a composite dielectric material containing a dielectric inorganic filler and an organic polymer material so that the dielectric constant anisotropy is in the range of about 1.00 to 1.05.

Abstract: Provided is a composite dielectric molded product exhibiting excellent properties such as the antenna gain and side lobe, etc. when used for a lens antenna, and exhibiting less variation of properties in one individual product and between individual products. The composite dielectric molded product is formed by molding a composite dielectric material containing a dielectric inorganic filler and an organic polymer material so that the dielectric constant anisotropy is in the range of about 1.00 to 1.05.