Title :
Leapfrog-type filters that retain the topology of the prototype ladder filters
Author :
Fragoulis, N. ; Haritantis, I.
Author_Institution :
Electron. Lab., Patras Univ.
Abstract :
New circuit topologies are proposed for obtaining lowpass all-pole and elliptic filters of any order. The derived circuits retain the attractive features of the leapfrog circuits and in addition they retain the topological equivalence with the prototype LC ladders. The formation of transmission zeros is straightforward. An example of 7 th-order elliptic filter including a sensitivity study is given
Keywords :
active filters; elliptic filters; ladder filters; low-pass filters; network topology; poles and zeros; sensitivity analysis; leapfrog-type filters; lowpass all-pole filters; lowpass elliptic filters; prototype LC ladders; prototype ladder filter topology; transmission zeros; Active filters; Capacitors; Circuit simulation; Circuit topology; Filtering theory; Impedance; Low pass filters; Prototypes; Virtual prototyping; Voltage;
Conference_Titel :
Circuits and Systems, 2000. Proceedings. ISCAS 2000 Geneva. The 2000 IEEE International Symposium on
Conference_Location :
Geneva
Print_ISBN :
0-7803-5482-6
DOI :
10.1109/ISCAS.2000.858713
