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公开(公告)号：US20230084290A1
公开(公告)日：2023-03-16
申请号：US17794498
申请日：2020-12-25
摘要： An antenna device includes a printed circuit board including a circuit configured to determine a position based on a navigation signal, and a dipole antenna element mounted on the printed circuit board and configured to receive the navigation signal. Further, the antenna device includes an L-shaped parasitic antenna element, wherein the dipole antenna element and a long-side element of the L-shaped parasitic antenna element are placed parallel to each other but at a position not in line with each other, and an end of a short-side element of the L-shaped antenna element is placed in close proximity to an end of the dipole antenna element.
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公开(公告)号：US20230089202A1
公开(公告)日：2023-03-23
申请号：US17793758
申请日：2020-12-25
申请人： NEC Platforms, Ltd.
摘要： Provided is an antenna device whose characteristics are enhanced (radio waves are efficiently emitted from an extended antenna) without need to place a communication unit that wirelessly communicates with the outside of a vehicle in close proximity to a loop structure of the vehicle, thus allowing a high flexibility of installation of the communication unit. An antenna device mounted on a vehicle includes a communication unit configured to wirelessly communicate with an outside of the vehicle, and a metal bracket configured to serve also as an extended antenna, and the communication unit includes a housing and a substrate-accommodated in the housing and on which a pattern antenna is formed, the metal bracket includes a first part fixed to the housing and a second part fixed to the vehicle.
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