WINDOW GLASS FOR VEHICLE

• Main Author: FUNATSU SATOSHI
• Format: Patent
• Language: English; Japanese
• Published: 31.10.2023
• Subjects: ANTENNAS, i.e. RADIO AERIALS; BASIC ELECTRIC ELEMENTS; ELECTRICITY; PERFORMING OPERATIONS; REMOVABLE EXTERNAL PROTECTIVE COVERINGS SPECIALLY ADAPTED FORVEHICLES; TRANSPORTING; VEHICLES IN GENERAL; WINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILARDEVICES FOR VEHICLES

To provide a window glass for vehicle which comprises an antenna for receiving radio waves in a predetermined frequency band and improves visibility.SOLUTION: An antenna for receiving radio waves in a predetermined frequency band comprises: a power supply section; an antenna element electrically connected to the power supply section; and a parasitic element provided in a glass pane. The parasitic element includes: a first element extending on one straight line in a first direction from a first end to a second end in a central part of the glass pane; and a second element connected with the vicinity of the first end and including a portion extending in a second direction or a third direction. In the first element, no other conductor is connected in an intermediate segment in 85% of a length from the first end to the second end. The antenna element includes a portion which is positioned at an opposite side of a side of the second end with respect to the second element and capacitively coupled with the second element.SELECTED DRAWING: Figure 1 【課題】所定の周波数帯の電波を受信するアンテナを備え、視認性を向上させた車両用窓ガラスの提供。【解決手段】所定の周波数帯の電波を受信するアンテナは、給電部と、前記給電部に電気的に接続されたアンテナエレメントと、前記ガラス板に設けられた無給電エレメントと、を有し、前記無給電エレメントは、前記ガラス板の中央部を、第１端から第２端に至るまで第１方向に一直線で延伸する第１エレメントと、前記第１端の近傍と接続され、第２方向又は第３方向に延伸する部分を含む第２エレメントと、を有し、前記第１エレメントは、前記第１端から前記第２端に至るまでの長さの８５％の中間区間に他の導体が接続されず、前記アンテナエレメントは、前記第２エレメントに対して前記第２端の側とは反対側に位置し、前記第２エレメントと容量結合する部分を含む。【選択図】図１