US 12,276,750 B2
On-vehicle radar apparatus
Satoshi Yamauchi, Kariya (JP); Yuuya Sugihara, Obu (JP); Shinngo Miyao, Kariya (JP); and Masafumi Ibushi, Kariya (JP)
Assigned to DENSO CORPORATION, Kariya (JP)
Filed by DENSO CORPORATION, Kariya (JP)
Filed on Aug. 30, 2021, as Appl. No. 17/461,372.
Application 17/461,372 is a continuation of application No. PCT/JP2020/008066, filed on Feb. 27, 2020.
Claims priority of application No. 2019-037820 (JP), filed on Mar. 1, 2019.
Prior Publication US 2021/0389415 A1, Dec. 16, 2021
Int. Cl. G01S 7/02 (2006.01); G01S 13/931 (2020.01)
CPC G01S 7/028 (2021.05) [G01S 13/931 (2013.01)] 5 Claims
OG exemplary drawing
 
1. An on-vehicle radar apparatus comprising:
a first radar antenna pattern unit configured to transmit electromagnetic waves;
a second radar antenna pattern unit configured to receive electromagnetic waves;
a printed circuit board in which the first radar antenna pattern unit and the second radar antenna pattern unit are mounted on a first surface thereof; and
a cover configured to cover the printed circuit board from a side of the first surface,
wherein
the cover includes:
a first inclined surface provided in a region where electromagnetic waves transmitted by the first radar antenna pattern unit pass through, and inclined with respect to the first surface;
a second inclined surface provided in a region where electromagnetic waves received by the second radar antenna pattern unit pass through, and inclined with respect to the first surface; and
a ridge portion at which the first inclined surface and the second inclined surface cross each other, and the ridge portion provided at a portion of the cover that is outside of a region where the electromagnetic waves transmitted by the first radar antenna pattern unit pass through and also outside a region where the electromagnetic waves received by the second radar antenna pattern unit pass through, the ridge portion comprising an edge at which the angle with respect to the electromagnetic waves on the cover rapidly changes, and
both of the first inclined surface and the second inclined surface are inclined closer towards the printed circuit board with increasing distance from the ridge portion, wherein
the cover is produced by injection-molding with a resin; and
a gate as a portion where a resin is injected into a mold during the injection-molding is provided at the ridge portion,
the gate provided at the portion of the cover that is outside of the region where the electromagnetic waves transmitted by the first radar antenna pattern unit pass through and also outside the region where the electromagnetic waves received by the second radar antenna pattern unit pass through.