一种高Q窄带有源滤波器的研制

Design of The High Quality Factor Narrow Bandwidth Filter

文中介绍了一种使用R、L、C桥T型网络构成的高Q值窄带滤波器的工作原理、电路的设计和调试方法。该滤波器解决了通常滤波器要实现Q值高,则元件数目多、电路复杂、调试不方便的问题,且造价便宜、元件精度要求不高,性能十分优良。

In this paper, the author introduced the working principle and circuit' s design and test of the high quality factor narrow bandwidth filter which is mainly composed of R. I. C bridge T network, Filters now available are faced with problems that to achieve high Q, agreat number of elements and complex circuit must be needed and test is not convenient. The filter not only solves these problems, but also has the following advantages. The cost is low and elements are not acquired high precision, but the property is excellent.