公开(公告)号：US20180131090A1

公开(公告)日：2018-05-10

申请号：US15793733

申请日：2017-10-25

Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.

Inventor： Takeshi OHNO ,  Atsushi IRIKAWA ,  Kanchi KATANODA

IPC: H01Q3/44 ,  G01S13/06 ,  G01S13/04

CPC classification number: H01Q3/44 ,  G01S13/04 ,  G01S13/06 ,  G01S13/56 ,  G01S13/88 ,  H01Q1/22 ,  H01Q1/42 ,  H01Q15/08 ,  H01Q23/00

Abstract: A radio wave sensor includes a transmitting antenna configured to radiate radio waves, and a housing that is composed of dielectric material and faces the transmitting antenna. The housing has a first protrusion that protrudes from a region facing the transmitting antenna towards the transmitting antenna. The first protrusion has an entrance surface that allows the radio waves from the transmitting antenna to enter. The entrance surface contains a flat surface parallel to a surface of the transmitting antenna, and an inclined surface that inclines relative to the flat surface in a direction apart from the flat surface.