12,000

We have over 12,000 students, from over 100 countries, within one of the safest campuses in the UK

93%

93% of Lancaster students go into work or further study within six months of graduating

Home > Research > Publications & Outputs > Vectorially Combined Distributed Power Amplifie...
View graph of relations

« Back

Vectorially Combined Distributed Power Amplifiers for Software-Defined Radio Applications

Research output: Contribution to journalJournal article

Published

  • K. Narendra
  • E. Limiti
  • C. Paoloni
  • J.-M. Collantes
  • R. Jansen
  • S. Yarman
Journal publication date10/2012
JournalIEEE Transactions on Microwave Theory and Techniques
Journal number10
Volume60
Number of pages12
Pages3189-3200
Original languageEnglish

Abstract

A new technique for distributed power amplifier (DPA) design maximizing dc-RF conversion is presented. The topology is featured by the vectorial combination of the output current sources when the transistors are loaded by their distributed output networks. To verify the design concept, two prototype DPAs (a 600-mW pseudomorphic HEMT (pHEMT) DPA and a ~ 23-W pHEMT/GaN DPA) are designed, realized, built, and tested. To the authors' knowledge, the second DPA achieved state-of-the-art power performance (i.e., the combination of output power, gain, and efficiency) for DPAs within the frequency range up to 2 GHz, well suited for software-defined radio applications.