Abstract: A planar antenna includes a dielectric layer including a first surface and a second surface on a side opposite from the first surface, an antenna conductor provided on the first surface, a ground conductor provided on the first surface or the second surface, or provided on both of the first surface and the second surface, and a transmission line including a signal line that is connected to the antenna conductor or provided in proximity to the antenna conductor, wherein a dielectric portion of the dielectric layer that is in contact with the signal line has a loss tangent of 0.007 or less at 28 GHz.

Abstract: To provide a substrate for a high frequency device, which satisfies requirements of low dielectric loss tangent, adhesion and transparency. A substrate for a high frequency device comprising a transparent glass substrate 16 and a transparent resin base material 20 bonded to the glass substrate 16 via an optical clear adhesive 18, wherein the dielectric loss tangent of the resin base material 20 in dielectric loss tangent measurement test is 0.01 or less, the peel strength in peel test is 3.0 Worn or more, and the amount of out gas in out gas test is 5.0 ?g/g or less.

Abstract: A laminated glass according to the present invention includes a first glass plate, a second glass plate, and an interlayer film. The interlayer film includes a laminated region including a first layer that is in contact with the first glass plate, a second layer that is in contact with the second glass plate, and a third layer disposed between the first layer and the second layer. When the relative dielectric constant of the first glass plate is denoted by ?g1, the relative dielectric constant of the second glass plate is denoted by ?g2, the relative dielectric constant of the first layer is denoted by ?m1, the relative dielectric constant of the second layer is denoted by ?m2, and the relative dielectric constant of the third layer is denoted by ?m3, relationships ?m1<?g1, ?m1<?g2, ?m2<?g1, ?m2<?g2, ?m3>?m1, ?m3>?m2 are established.

Abstract: An antenna system includes a glass plate having a thickness of 1.1 mm or more and a dielectric loss tangent of 0.005 or more at 28 GHz, and an antenna located away from one of surfaces of the glass plate, wherein a ratio of electric power radiated from the antenna to electric power input into the antenna is defined as a radiation efficiency, and when an effective wavelength of an electromagnetic wave at a predetermined frequency is 10 GHz or more is denoted as ?g and the radiation efficiency as ?0 [dB] when the glass plate and the antenna are in contact, and is denoted as ??g/2 [dB] when a distance between the one of the surfaces and the antenna is ?g/2, the glass plate and the antenna are arranged to obtain the radiation efficiency of ?A [dB] that satisfies ?A??0+(??g/2??0)×0.1.

Abstract: The present invention relates to a laminated body with electric conductor including a substrate; a functional layer having at least an adhesive layer; an electric conductor; and a protective material, wherein the substrate, the functional layer having at least the adhesive layer, the electric conductor, and the protective material are sequentially laminated in a thickness direction, and wherein a thickness of the functional layer is less than or equal to 0.300 mm.

Abstract: The present invention relates to a laminated glass for vehicle, including a first glass plate and a second glass plate joined to each other by an intermediate film, in which the first glass plate has a second main surface facing the intermediate film; the laminated glass has a first region with the second glass plate and a second region with no second glass plate in a plan view; the laminated glass has a filling portion that includes an electromagnetic wave transmission member and is disposed continuously from the second main surface on the second region toward a space between the first glass plate and the second glass plate in the first region to cross the entire boundary between the first region and the second region; and the second region is higher in transmittance of millimeter waves than the first region.

Abstract: A laminated glass according to the present invention includes a first glass plate, a second glass plate, and an interlayer film. The interlayer film includes a laminated region including a first layer that is in contact with the first glass plate, a second layer that is in contact with the second glass plate, and a third layer disposed between the first layer and the second layer. When the relative dielectric constant of the first glass plate is denoted by ?g1, the relative dielectric constant of the second glass plate is denoted by ?g2, the relative dielectric constant of the first layer is denoted by ?m1, the relative dielectric constant of the second layer is denoted by ?m2, and the relative dielectric constant of the third layer is denoted by ?m3, relationships ?m1<?g1, ?m1<?g2, ?m2<?g1, ?m2<?g2, ?m3>?m1, ?m3>?m2 are established.

Abstract: A planar antenna includes a dielectric layer including a first surface and a second surface on a side opposite from the first surface, an antenna conductor provided on the first surface, a ground conductor provided on the first surface or the second surface, or provided on both of the first surface and the second surface, and a transmission line including a signal line that is connected to the antenna conductor or provided in proximity to the antenna conductor, wherein a dielectric portion of the dielectric layer that is in contact with the signal line has a loss tangent of 0.007 or less at 28 GHz.

Abstract: The present invention relates to a laminated body with electric conductor including a substrate; a functional layer having at least an adhesive layer; an electric conductor; and a protective material, wherein the substrate, the functional layer having at least the adhesive layer, the electric conductor, and the protective material are sequentially laminated in a thickness direction, and wherein a thickness of the functional layer is less than or equal to 0.300 mm.

Abstract: An antenna system includes a glass plate having a thickness of 1.1 mm or more and a dielectric loss tangent of 0.005 or more at 28 GHz, and an antenna located away from one of surfaces of the glass plate, wherein a ratio of electric power radiated from the antenna to electric power input into the antenna is defined as a radiation efficiency, and when an effective wavelength of an electromagnetic wave at a predetermined frequency is 10 GHz or more is denoted as Ag and the radiation efficiency as ?0 [dB] when the glass plate and the antenna are in contact, and is denoted as ??g/2 [dB] when a distance between the one of the surfaces and the antenna is ?g/2, the glass plate and the antenna are arranged to obtain the radiation efficiency of ?A [dB] that satisfies ?A??0+(??g/2??0)×0.1.