notch antenna

例句：

1. 1.The notch antenna is designed to pick up signals from a specific frequency range.
   缺口天线设计用来从特定频率范围内接收信号。
2. 2.The notch antenna has been used in many communication systems for its ability to filter out interference.
   缺口天线已被用于许多通信系统中，因为它能够过滤掉干扰。
3. 3.The notch antenna was the first of its kind to be developed and is still widely used today.
   缺口天线是第一种被开发出来的，并且至今仍广泛使用。