Tunable ladder-type realization of current-mode elliptic filters

Ozoguz S. , TOKER A.

AEU-INTERNATIONAL JOURNAL OF ELECTRONICS AND COMMUNICATIONS, cilt.56, sa.3, ss.193-199, 2002 (SCI İndekslerine Giren Dergi) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 56 Konu: 3
  • Basım Tarihi: 2002
  • Doi Numarası: 10.1078/1434-8411-54100094
  • Dergi Adı: AEU-INTERNATIONAL JOURNAL OF ELECTRONICS AND COMMUNICATIONS
  • Sayfa Sayıları: ss.193-199

Özet

It is shown that a new series FDNR-R equivalent circuit using current controlled current conveyors (CCCHs) allows effective realization of jomega-axis zeros which are known to complicate the active implementation of ladder-type elliptic filters. The resulting ladder-type elliptic filter employs all grounded capacitors while keeping the number of active elements small. Also, the filter parameters are electronically tunable, which is important from integration point of view.