用于电子对抗的多路变换传输声表面波滤波器(二)

• 出 处: 压电与声光
• 发表日期: 2004年期
• 关键词: 声表面波滤波器 滤波器 电子对抗 信道 输入导纳 邻信道 电压源 通带 滤波器组 元件

连续通带滤波器阵列的性能基本上取决于互连的单个滤波器的性能。由于信道互作用效应和电源负载,将滤波器简单地并联以获得单个滤波器的响应往往是不可能的。滤波器元件互连的一般方法如图1所示。单个滤波器必须根据单端原型来设计,因为相邻信道的输入导纳在给定滤波器终端组成一个等效电压源,同时每个信道的第一个元

The performance of a continuous passband filter array basically depends on the performance of the individual filter interconnected. Due to the effects of channel interactions and power loads, it is often not possible to simply filter the filters in parallel to obtain a single filter response. The general method of interconnecting filter components is shown in Figure 1. A single filter must be designed based on a single-ended prototype because the input admittance of adjacent channels forms an equivalent voltage source at the given filter terminal while the first element of each channel