公开(公告)号：US20220166493A1

公开(公告)日：2022-05-26

申请号：US17671291

申请日：2022-02-14

Applicant: DENSO CORPORATION

Inventor： Shinichi YOKOI ,  Shirou KOIDE ,  Takuya YAMASHITA

IPC: H04B7/155 ,  H01Q1/32 ,  H01Q9/04

Abstract: An antenna device includes: a plurality of antenna elements for a plurality of communication systems; a housing that houses the plurality of antenna elements; and a digital signal processing circuit connected to one of the plurality of antenna elements and configured to perform a demodulation process to demodulate an analog signal received by the one of the plurality of antenna elements to obtain a digital signal, or/and a modulation process to modulate a digital signal to an analog signal and output the modulated analog signal to the one of the plurality of antenna elements. At least one of the plurality of antenna elements communicates with outside of the antenna device by an analog signal on a signal line connected to the at least one of the plurality of antenna elements.

公开(公告)号：US20230066781A1

公开(公告)日：2023-03-02

申请号：US17982254

申请日：2022-11-07

Applicant: DENSO CORPORATION

Inventor： Youhei SEKIYA ,  Yuzi SUGIMOTO ,  Masakazu IKEDA ,  Yuuji KAKUYA ,  Ryuichi ARAI ,  Shirou KOIDE ,  Takuya YAMASHITA ,  Hiroyuki IZUMI

IPC: H01Q9/04 ,  H01Q21/06

Abstract: An antenna device includes: a first antenna having a directional gain at a low elevation angle higher than the directional gain at a high elevation angle; a second antenna having the directional gain at the high elevation angle higher than the first antenna, transmitting and receiving a radio wave having a vibration direction of an electric field intersecting with a radio wave transmitted and received by the first antenna; and a third antenna having the directional gain at the high elevation angle higher than the first antenna, and transmitting and receiving a radio wave having a vibration direction of an electric field intersecting with the radio wave transmitted and received by the second antenna.