demodulator passband characteristic

例句：

1. 1. The radio receiver has a passband that can handle frequencies from 200 MHz to 400 MHz.
   无线电接收器有一个带通频带，可以处理从200兆赫到400兆赫的频率。
2. 2. In digital signal processing, the passband is the frequency range within which the signal passes through.
   在数字信号处理中，带通是信号通过的频率范围。
3. 3. The antenna's passband is designed to cover the desired frequency range.
   天线的带通设计是为了覆盖所需的频率范围。