Bandwidth Extension Of A Conventional Distributed Amplifier

Virdee B. S., Yazgı M., Virdee A.

Asia Pacific Microwave Conference, Bangkok, Thailand, 11 - 14 December 2007, pp.561-562 identifier

  • Publication Type: Conference Paper / Full Text
  • City: Bangkok
  • Country: Thailand
  • Page Numbers: pp.561-562
  • Istanbul Technical University Affiliated: Yes


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.