Grounded capacitor based fully cascadable electronically tunable current-mode universal filter

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Yücel F., Yüce E.

AEU-INTERNATIONAL JOURNAL OF ELECTRONICS AND COMMUNICATIONS, cilt.79, ss.116-123, 2017 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 79
  • Basım Tarihi: 2017
  • Doi Numarası: 10.1016/j.aeue.2017.05.041
  • Dergi Adı: AEU-INTERNATIONAL JOURNAL OF ELECTRONICS AND COMMUNICATIONS
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.116-123
  • Anahtar Kelimeler: Universal filter, Current-mode, CCII, CCCII, Tunability, Orthogonality, CURRENT-CONTROLLED CONVEYORS, OUTPUT CURRENT CONVEYORS, UNITY GAIN CELLS, PASSIVE COMPONENTS, SINGLE CFOA, BIQUADRATIC FILTER, REDUCED NUMBER, REALIZATION, INPUT, CCII
  • Akdeniz Üniversitesi Adresli: Evet

Özet

A novel current-mode (CM) universal filter configuration composed of five plus-type second-generation current conveyors (CCII+s) as active components besides three resistors and three grounded capacitors as passive elements is proposed in this paper. The proposed filter can simultaneously provide high-pass, band-pass and loW-pass responses. Also, it can realize all-pass and notch responses with interconnection of convenient output currents. It can be cascaded with other CM ones easily because it has low input and high output impedances. It offers orthogonal control of angular resonance frequency and quality factor. An electronically tunable universal filter can be easily obtained if plus-type current controlled current conveyors are replaced instead of each of the five CCII+s and all the three resistors are removed. Nevertheless, it needs a single passive element matching constraint for notch and all-pass filter responses. Some simulation and experimental test results are included to confirm the theory. (C) 2017 Elsevier GmbH. All rights reserved.