A wide-band feedforward amplifier
- 1 December 1974
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Journal of Solid-State Circuits
- Vol. 9 (6) , 422-428
- https://doi.org/10.1109/JSSC.1974.1050537
Abstract
The design of a wide-band feedforward amplifier in the frequency range 30-300 MHz is described. Expressions are derived for feedforward amplifier sensitivity, and the effect of imperfect loop cancellation is described. The effect of circuit imbalance on gain and terminal impedances is investigated. The circuit is realized in thin-film hybrid form, and measurements show 20 dB of distortion improvement at 300 MHz. Practical aspects of circuit adjustment and operation are considered.Keywords
This publication has 5 references indexed in Scilit:
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- A Microwave Feed-Forward ExperimentBell System Technical Journal, 1971
- A Feedforward Experiment Applied to an L-4 Carrier System AmplifierIEEE Transactions on Communications, 1971
- Error-Controlled High Power Linear Amplifiers at YHFBell System Technical Journal, 1968