directional antenna

汉语翻译

英语解释：

名词 directional antenna:

1. an antenna that transmits or receives signals only in a narrow angle

例句：

1. A radio receiver and directional antenna used as a system to determine the angular direction of incoming radio signals.
   无线方向探测器一种无线电接收和指向天线系统，用来确定收到的无线电信号的角方向