Antennenanordnung und Interaktive Weisse Tafel

Details

Veröffentlichungs-Nr.

EP4231451

Aktenzeichen

EP22210308

Anmeldetag

29. November 2022

Veröffentlichung

6. November 2024

Erteilung

6. November 2024

Rechtsraum

EP

IPC

H01Q1/44H01Q1/48H01Q1/52H01Q7/00H01Q9/30H01Q21/30H01Q15/16

Abstract

An embodiment of the present disclosure discloses an antenna assembly and an interactive white board. A first surface of a dielectric substrate in the antenna assembly is provided with a ground plane and a closed clearance region. A first antenna unit and a second antenna unit are spaced apart on the first surface and located in the clearance region. The first antenna unit and the second antenna unit are orthogonal. The radio frequency chip is arranged on the dielectric substrate, and electrically connected with the first antenna unit and the second antenna unit. A metal resonant cavity is arranged on a second surface of the dielectric substrate. In a direction perpendicular to the second surface, at least a part of a projection of the clearance region on the metal resonant cavity is within an outer contour of the metal resonant cavity. The electromagnetic wave radiated from the first antenna unit and the second antenna unit to the inside of the metal resonant cavity is reflected and then faces the direction of the first surface, so that an intensity of the electromagnetic wave radiated from the side provided with the first surface is enhanced. In addition, the antenna unit is arranged in the closed clearance region, and thus wiring of the antenna unit can be simplified to reduce an area of the dielectric substrate, so that the antenna assembly can be made smaller.

Anmelder

Firma

Guangzhou Shiyuan Electronics Co., Ltd.

Land

🇨🇳 China

Fachgebiete