ON-VEHICLE ANTENNA

• Main Authors: KUNIKATA SHOTA, NAKAGAWA YUTA, FURUHASHI KYOKO, MATSUSHITA KENJI, KANEKO YUYA, KIMURA TSUNETO
• Format: Patent
• Language: English; Japanese
• Published: 29.05.2023
• Subjects: ANTENNAS, i.e. RADIO AERIALS; BASIC ELECTRIC ELEMENTS; ELECTRICITY

To provide an on-vehicle antenna capable of efficiently removing foreign substances which are spread planarly even in a case they are deposited in a radio wave transmissive region of the on-vehicle antenna in addition to rain drops or snow, while suppressing loads on a user.SOLUTION: An on-vehicle antenna 10 comprises an antenna case 20, a removal member 30, an antenna housing 40 and an antenna substrate 61. The antenna housing 40 is provided so as to be stored in the antenna case 20 and includes a radio wave transmissive top plate part 41. The antenna substrate 61 is stored in the antenna housing 40, and an antenna element 63 is formed on a surface. The top plate part 41 includes a radio wave transmissive region RT through which radio waves sent and received by the antenna element 63 are transmitted. The removal member 30 is in contact with the top plate part 41 over both ends of the top plate part 41 in a direction orthogonal to a direction of movement of the antenna housing 40. The removal member 30 slides on the top plate part 41 while being in contact with the top plate part 41 with the movement of the antenna housing 40.SELECTED DRAWING: Figure 2 【課題】使用者の負担を抑えつつ、雨滴や雪に加えて、平面的に広がった異物が車載アンテナの電波透過領域に付着した場合でも、これらを効率良く除去することが可能な車載アンテナを提供する。【解決手段】車載アンテナ１０は、アンテナケース２０、除去部材３０、アンテナ筐体４０、及びアンテナ基板６１を備える。アンテナ筐体４０は、アンテナケース２０に収容可能に設けられ、かつ、電波透過性の天板部４１を有する。アンテナ基板６１は、アンテナ筐体４０に収容され、かつ、アンテナ素子６３が表面に形成される。天板部４１は、アンテナ素子６３によって送受信される電波が透過する電波透過領域ＲＴを有する。除去部材３０は、アンテナ筐体４０の移動方向に直交する方向において、天板部４１の両端にわたって、天板部４１に接触する。除去部材３０は、アンテナ筐体４０の移動に伴って、天板部４１に接触しながら、天板部４１上を摺動する。【選択図】図２