公开(公告)号：US20200271830A1

公开(公告)日：2020-08-27

申请号：US16872233

申请日：2020-05-11

申请人： DENSO CORPORATION

发明人： Yoshihiro ABE ,  Toshiaki WATANABE ,  Shinichiro MATSUZAWA

IPC分类号： G02B1/118 ,  G02B1/115 ,  B60R1/00 ,  G01S13/931

摘要： An antireflection structure includes an antireflection film provided on a front surface of a substrate. The antireflection film has a plurality of holes that are spatially and periodically arranged and pass through front and back surfaces of the antireflection film. A thickness and a relative dielectric constant of the antireflection film are set according to a relative dielectric constant and a thickness of the substrate and an incident angle θ of an electromagnetic wave. The thickness and the relative dielectric constant of the antireflection film are set for an electromagnetic wave incident at the angle θ so that, for example, an electromagnetic wave reflected by the antireflection film provided on the front surface of the substrate and an electromagnetic wave reflected by a back surface of the substrate deviate from each other by a half wavelength and cancel each other.

公开(公告)号：US20160336654A1

公开(公告)日：2016-11-17

申请号：US15112998

申请日：2015-01-21

申请人： DENSO CORPORATION

发明人： Kazuhiro AOKI ,  Shinichiro MATSUZAWA

IPC分类号： H01Q5/55 ,  H01Q9/04 ,  H05K1/11 ,  H01Q1/48 ,  H01P3/16 ,  H01P5/08

CPC分类号： H01Q5/55 ,  H01P3/121 ,  H01P3/16 ,  H01P5/087 ,  H01P5/107 ,  H01Q1/48 ,  H01Q9/0407 ,  H01Q9/045 ,  H01Q21/0093 ,  H05K1/0218 ,  H05K1/0239 ,  H05K1/115 ,  H05K2201/09363 ,  H05K2201/09618

摘要： A collective lamination substrate N is provided with pattern layers having N number of layers, where N is an integer and 4 or more, a pseudo waveguide formed penetrating through the pattern layers in a lamination direction, a converter section formed in the pattern layers, mutually converting between an electrical signal and radio waves being transmitted and received via the pseudo waveguide, and ground patterns formed in the pattern layers, covering a periphery of a waveguide formation section. The collective lamination substrate further includes: antennas formed in the waveguide formation section; a first via group provided in a periphery of the waveguide formation section; and a second via group provided in a periphery of the waveguide formation section and positioned at a more outer portion than the first via group.

摘要翻译： 集体层叠基板N设置有N层数的图案层，其中N为整数且为4以上，形成在层叠方向上贯穿图案层的伪波导管，形成在图案层中的转换器部分相互 在电信号和经由伪波导发送和接收的无线电波之间进行转换，以及形成在图案层中的覆盖波导形成部分的周边的接地图案。 集体层叠基板还包括：形成在波导形成部中的天线; 设置在波导形成部的周围的第一通孔组; 以及第二通孔组，设置在波导形成部的周边并位于比第一通孔组更外侧的部分。