Bandwidth extension of a conventional distributed amplifier

Virdee B. S., Yazgı M., Virdee A.

Asia-Pacific Microwave Conference, APMC 2007, Bangkok, Tayland, 11 - 14 Aralık 2007, (Tam Metin Bildiri) identifier

  • Yayın Türü: Bildiri / Tam Metin Bildiri
  • Doi Numarası: 10.1109/apmc.2007.4554667
  • Basıldığı Şehir: Bangkok
  • Basıldığı Ülke: Tayland
  • Anahtar Kelimeler: Broadband amplifiers, Distributed amplifiers, Microwave amplifiers
  • Samsun Üniversitesi Adresli: Hayır

Özet

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.