antenna excitation

例句：

1. 1. The antenna is designed to emit a strong signal in the direction of the satellite.
   天线被设计成在卫星方向发射强信号。
2. 2. The antenna excitation system is responsible for transmitting data from the receiver to the satellite.
   天线激励系统负责将接收器传输的数据发送到卫星。
3. 3.In order to improve the performance of the antenna, we need to optimize its excitation frequency.
   为了提高天线的性能，我们需要优化其激励频率。