The present invention provides an antenna device for a vehicle which can reduce attenuation of a reception wave caused by impedance matching when the reception wave enters at a wide angle in a millimeter wave radar signal band. The antenna device comprises: a first metamaterial stack printed on a first printed circuit board and having a first refractive index range and a first refractive index distribution; a second metamaterial stack separated and arranged underneath the first metamaterial stack, printed on a second printed circuit board, and having a second refractive index range and a second refractive index distribution; and an antenna separated and arranged underneath the second metamaterial stack, and transmitting or receiving a signal. A plurality of metamaterial unit cells are arranged on the first metamaterial stack in a controlled manner such that the first refractive index is the largest in the middle of the first metamaterial stack and is reduced in stages along the radius. A plurality of metamaterial unit cells are arranged on the second metamaterial stack in a controlled manner such that the second refractive index is the largest in the middle of the second metamaterial stack and is reduced in stages along the radius. The first refractive index range and the second refractive index range can be the same. The present invention also provides an autonomous vehicle having the antenna device.

    차량용 안테나 장치가 개시된다. 상기 안테나 장치는 제1인쇄회로기판 상에 인쇄되고 제1굴절율 범위와 제1굴절율 분포를 가지는 제1메타물질 스택; 제1메타물질 스택 아래에 이격되어 배치되고, 제2인쇄회로기판 상에 인쇄되며, 제2굴절율 범위와 제2굴절율 분포를 가지는 제2메타물질 스택; 그리고 제2메타물질 스택 아래에 이격되어 배치되고, 신호를 발신 또는 수신하도록 된 안테나를 포함하며, 제1메타물질 스택에는 복수의 메타물질의 유닛 셀들이 제어된 방식으로 배열되어 제1굴절율이 제1메타물질 스택의 중심에서 가장 크고, 반경에 따라 단계적으로 줄어들며, 제2메타물질 스택에는 복수의 메타물질의 유닛 셀들이 제어된 방식으로 배열되어 제2굴절율이 제2메타물질 스택의 중심에서 가장 크고, 반경에 따라 단계적으로 줄어들고, 제1굴절율 범위와 제2굴절율 범위는 동일할 수 있다. 상기 안테나 장치를 구비한 자율주행 차량이 더 개시된다.


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    Title :

    RADAR ANTENNA DEVICE FOR VEHICLE AND AUTONOMOUS VEHICLE EQUIPPED WITH THE SAME


    Additional title:

    차량용 레이더 안테나 장치 및 이를 구비한 자율주행 차량


    Contributors:
    JUNG UNE TEAK (author) / YU CHANGSEON (author) / CHOI GIHO (author) / LEE YONG CHAE (author)

    Publication date :

    2023-07-10


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Korean


    Classification :

    IPC:    H01Q Antennen , ANTENNAS, i.e. RADIO AERIALS / B60W CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION , Gemeinsame Steuerung oder Regelung von Fahrzeug-Unteraggregaten verschiedenen Typs oder verschiedener Funktion / G01S RADIO DIRECTION-FINDING , Funkpeilung / G02B Optische Elemente, Systeme oder Geräte , OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS




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