Passive and Active Circuits design of High Order Low-pass Filter using Elliptic Function

타원비수를 이용한 고차 저역통과 필터의 수동 및 능동회로 설계

In this paper, seven-order elliptic low-pass passive network is synthesized by using doublyterminated ladder network is directly transformed into the active network which has the advantage of low sensitivity and can be realized conveniently. The circuit simulation results of passive network and active network synthesized with FDNR and Leap-frog technique are compared, and it is proved that the two rest work has the same characteristics.