| 摘要 |
For an emblem that is arranged on a traveling path of a radar wave, such a constraint that a configuration having concaves and convexes cannot be formed is eliminated, and flexibility in design request is ensured. The emblem configured to be arranged on a traveling path of a radar wave that is transmitted from an in-vehicle radar apparatus, includes a first thickness portion (thickness d1) that has a larger thickness; and a second thickness portion (thickness d2) that has a thickness smaller than that of the first thickness portion, in which the first thickness portion has a thickness equal to an integral multiple of 1/2 of an in-medium wavelength of the radar wave propagating inside the first thickness portion, the second thickness portion has a thickness equal to an integral multiple of 1/2 of the in-medium wavelength of the radar wave propagating inside the second thickness portion, and a difference in thickness between the first thickness portion and the second thickness portion is set to an integral multiple of a free-space wavelength of the radar wave.
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