公开(公告)号：US12027784B2

公开(公告)日：2024-07-02

申请号：US17794498

申请日：2020-12-25

申请人： NEC Platforms, Ltd.

发明人： Shun Hirano ,  Masato Tsuchiya ,  Shinya Yamamoto ,  Raita Nakanishi ,  Tomoyuki Kuge

IPC分类号： H01Q9/16 ,  G01S19/35 ,  H01Q1/28 ,  H01Q1/38 ,  H01Q5/378

CPC分类号： H01Q5/378 ,  G01S19/35 ,  H01Q1/28 ,  H01Q1/38 ,  H01Q9/16

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.