Inductorless filter design using active elements and piezoelectric resonators

1 May 1972

journal article
Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Circuit Theory

Vol. 19 (3) , 247-253
https://doi.org/10.1109/TCT.1972.1083444

Abstract

Inductorless active filters using piezoelectric resonators are described. Because of the excellent frequency stability of piezoelectric resonators (quartz crystals in particular), these filters are more suitable for realizing narrow bandwidth responses than are activeRCfilters which are restricted to relatively lowQapplications by the limited tracking capability of theRCcomponents. In addition, because the filters are active, the inductors and transformers which are often required in passive piezoelectric filters are eliminated.

Keywords

This publication has 4 references indexed in Scilit:

Very high-Q insensitive active RC networks
IEEE Transactions on Circuit Theory, 1970
Ceramic IF filters for consumer products
IEEE Spectrum, 1968
Insertion Loss Design of Symmetrical Lattice Piezoelectric Resonator Filters with Symmetrical or Unsymmetrical Pass Bands
IRE Transactions on Circuit Theory, 1962
The Synthesis of a Class of Wide-Band Lattice Crystal Filter With Symmetrical Insertion Loss characteristics
IRE Transactions on Circuit Theory, 1960