Active Filter Element and Its Application to a Fourier Comb
- 1 April 1961
- journal article
- research article
- Published by AIP Publishing in Review of Scientific Instruments
- Vol. 32 (4), 387-391
- https://doi.org/10.1063/1.1717383
Abstract
An active bandpass filter has been developed with the desirable feature of wide Q control over the range of frequencies extending to ∼4 kc. The Q has been made as high as 250 with good stability characteristics over this range. The flexibility of the filter has been illustrated by the construction of a filter bank tuned to select Fourier components of a 50‐cps periodic wave in a typical noise environment and recombine them with no added relative phase shift and with equal gain to improve the signal‐to‐noise ratio.Keywords
This publication has 2 references indexed in Scilit:
- A practical method of designing RC active filtersIRE Transactions on Circuit Theory, 1955
- RC Active FiltersProceedings of the IRE, 1954