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公开(公告)号：US20220059948A1
公开(公告)日：2022-02-24
申请号：US17519435
申请日：2021-11-04
Applicant: AGC Inc.
Inventor： Toshiki SAYAMA , Ryota OKUDA , Minami HAGIWARA , Yusuke SATO , Takeshi MOTEGI
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.
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公开(公告)号：US20210072632A1
公开(公告)日：2021-03-11
申请号：US17072229
申请日：2020-10-16
Applicant: AGC Inc.
Inventor： Yukihiro TAO , Naruki YAMADA , Osamu IWATA , Yoshinori IGUCHI , Yusuke SATO , Yoko MITSUI , Tsuneo ICHIMATSU
Abstract: There are provided a video projecting structure, which is capable of having not only transparency but also high visibility of a video, a process for producing the same, and a video display system including the video projection structure.
A video projecting structure includes a first transparent layer having irregularities disposed on a surface thereof, a reflective layer disposed on the surface of the first transparent layer, and a second transparent layer disposed on the reflective layer; wherein when a surface of the first transparent layer opposite to the reflective layer is defined as a reference surface, the irregularities include a plurality of slant surfaces slant to the reference surface and reflecting light from a video; wherein when a first direction, a second direction and a third direction are defined such that the first direction is perpendicular to a normal direction of the reference surface, the slant surfaces extend in the first direction, the second direction is orthogonal to the first direction, the slant surfaces are arrayed in the second direction, and the third direction is a direction in which the slant surfaces have an average slant angle θ to the reference surface in section in the second direction; the irregularities include a portion which is configured such that when an average spacing Sm1 of the irregularities in the first direction, an average spacing Sm2 of the irregularities in the second direction and an average spacing Sm3 of the irregularities in the third direction are such that Sm2>Sm1 and Sm3>Sm1 are met, and Sm2 is maximum; and wherein the irregularities include a portion which is configured such that when a frequency distribution of inclinations of the irregularities in the second direction to the reference surface is measured in 0.25° divisions in every distance of 1 mm in order that the frequencies are represented as distances, the absolute value of a median value in the frequency distribution is a value other than 0°.-
公开(公告)号：US20240222881A1
公开(公告)日：2024-07-04
申请号：US18610575
申请日：2024-03-20
Applicant: AGC Inc.
Inventor： Toshiki SAYAMA , Ryota OKUDA , Minami HAGIWARA , Yusuke SATO , Takeshi MOTEGI
CPC classification number: H01Q21/065 , H01Q5/371 , H01Q9/0407 , H01Q9/0421 , H01Q1/1271
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.
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