Hitachi Metals, Ltd.

Honda Motor Co., Ltd.

Satoshi Yoshihara

Seiji Kado

Tomoyuki Ogawa

Shingo Nakayama

Nobuaki Kitano

Kouya Sugawara

A vehicle body structure includes a garnish provided on an outer side of a vehicle, an adapter joined to the garnish, a radar device supported by the adapter, and a cover joined to the garnish and covering the radar device. The garnish includes a mounting hole, a first annular rib extending to surround the mounting hole, and an annular surface defined by an edge part of the mounting hole and the first annular rib. The adapter is joined to a back side of the garnish in a position corresponding to the mounting hole. The cover includes a plate-shaped portion that is disposed inside the first annular rib, has an outer edge portion opposing an inner side surface of the first annular rib via a first clearance, and covers the mounting hole, and restriction walls protruding from a back side of the plate-shaped portion toward the annular surface.

Vehicle body structure

A phase-shifting circuitincludes a signal conductorthat transmits signals, and a dielectric bodythat is disposed to overlap the signal conductor, said phase-shifting circuit changing the phase of the signals by changing the area of an overlapping sectionwhere the signal conductorand the dielectric bodyoverlap each other. The phase-shifting circuit further includes a transformer unitfor matching impedance between the overlapping sectionand non-overlapping sectionwhere the signal conductorand the dielectric bodydo not overlap each other, said transformer unit being provided at end sections of the dielectric body, said end sections being on the input side and output side of the signals. The transformer unitincludes a high-impedance sectionthat is provided on the overlapping sectionside, and a low-impedance section, which is provided on the non-overlapping sectionside of the high-impedance section, and which has a lower characteristic impedance than the high-impedance section

Phase-shifting circuit and antenna device

An antenna device includes a plurality of antenna element groups including a plurality of antenna elements arranged in a horizontal direction. The plurality of antenna element groups are arranged in multiple stages in a vertical direction. The stage antenna element group includes a first antenna element group in which the antenna element in an even number sequence from the antenna element configuring the antenna element group is arranged at a shifted position to an upper side or a lower side in the vertical direction from the antenna element in an odd number sequence, and a second antenna element group in which the antenna element in the even number sequence from the antenna element configuring the antenna element group is arranged at a shifted position to the other side of the lower side or the upper side in the vertical direction from the antenna element in the odd number sequence.

Antenna device

An antenna device includes a plurality of antenna elements, a metal member integrally including a first wall and a plurality of second walls that are arranged in parallel to each other and perpendicularly extend from one surface of the first wall, and circuit boards that are respectively housed in substrate-housing spaces as gaps between the adjacent second walls and mount feeder circuits for feeding power to the plurality of antenna elements.

Growing community of inventors

Tokyo, Japan

Satoshi Yoshihara