Title :
Feedback in distributed amplifiers
Author :
Riaziat, M. ; Bandy, S. ; Ching, L.Y. ; Li, G.
Author_Institution :
Varian Res. Center, Palo Alto, CA, USA
fDate :
2/1/1990 12:00:00 AM
Abstract :
A model is presented for parallel and series feedback effects in distributed amplifiers, and their frequency-dependence characteristics are discussed. A six-element distributed amplifier utilizing series feedback is described. The results show a 2-dB improvement in small-signal gain over the 2-18-GHz frequency range compared to a conventional distributed amplifier using the same active device
Keywords :
distributed parameter networks; equivalent circuits; feedback; microwave amplifiers; network analysis; 2 to 18 GHz; SHF; distributed amplifiers; frequency-dependence characteristics; microwave amplifiers; model; parallel feedback; sensitivity; series feedback; small-signal gain; stability; Circuits; Directional couplers; Distributed amplifiers; FETs; Feedback; Frequency dependence; Impedance; Operational amplifiers; Power amplifiers; Power transmission lines;
Journal_Title :
Microwave Theory and Techniques, IEEE Transactions on
