A high-gain narrow-band amplifier using active filters

Details A high-gain narrow-band amplifier using active filters A high-gain narrow-band amplifier using active filters

Jan 1977

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1977jiete..23...29b&link_type=abstract

Institution of Electronics and Telecommunication Engineers, Journal, vol. 23, Jan. 1977, p. 29-31. Research supported by the Uni

Physics

Amplifier Design, Bandpass Filters, High Gain, Lower Ionosphere, Wave Interaction, Block Diagrams, Circuit Diagrams, Electronic Filters, Frequency Response, Low Noise, Operational Amplifiers, Phase Shift, Power Gain, Transfer Functions

Scientific paper

A high-gain low-noise low-frequency narrow-band amplifier has been synthesized using operational amplifiers, with the resulting circuit consisting of a number of cascaded stages. The transfer function approximated has a passband centered at 27.7 Hz and a bandwidth of 0.75 Hz; the passband gain is about 120 db. The amplifier is intended for use in a gyro-interaction experiment to study the lower ionosphere.

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