Bandwidth Extension Of A Conventional Distributed Amplifier

This paper presents a unique technique for significantly improving the bandwidth of a conventional distributed amplifier (CDA) using negative resistance. It is demonstrated that by making the gate-line of the CDA configuration negative resistance, the amplifiers operational bandwidth is improved by...

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Bibliographic Details
Main Authors: Virdee, Bal S., Yazgi, Metin, Virdee, Avtar
Format: Conference Proceeding
Language:English
Subjects:
Attenuation
Bandwidth
Broadband amplifiers
Cutoff frequency
Degradation
Distributed amplifiers
Distributed parameter circuits
Equivalent circuits
FETs
Microwave amplifiers
Performance gain
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Summary:This paper presents a unique technique for significantly improving the bandwidth of a conventional distributed amplifier (CDA) using negative resistance. It is demonstrated that by making the gate-line of the CDA configuration negative resistance, the amplifiers operational bandwidth is improved by 14% without compromising its gain performance. In this case the 4-stage CDA was implemented using packaged pseudomorphic HJ-FET devices. The simplicity of the proposed technique makes it amenable to MMIC technology.
ISSN:2165-4727
2165-4743
DOI:10.1109/APMC.2007.4554667