Feedback in distributed amplifiers

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-GH...

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Bibliographic Details
Published inIEEE transactions on microwave theory and techniques Vol. 38; no. 2; pp. 212 - 215
Main Authors Riaziat, M., Bandy, S., Ching, L.Y., Li, G.
Format Journal Article
LanguageEnglish
Published New York, NY IEEE 01.02.1990
Institute of Electrical and Electronics Engineers
Subjects
Amplifiers
Applied sciences
Circuit properties
Circuits
Directional couplers
Distributed amplifiers
Electric, optical and optoelectronic circuits
Electronic circuits
Electronics
Exact sciences and technology
Feedback
FETs
Frequency dependence
Impedance
Microwave circuits, microwave integrated circuits, microwave transmission lines, submillimeter wave circuits
Operational amplifiers
Power amplifiers
Power transmission lines
Frequency response
Distributed parameter circuit
Microwave amplifier
Feedback
Gain
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Summary: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.< >
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:0018-9480
1557-9670
DOI:10.1109/22.46432