A 3.5GHz High Power GaN Hybrid Doherty Power Amplifier with Dynamic Input Power Splitting for Enhanced Power Added Efficiency at Backoff

Research output: Chapter in Book/Report/Conference proceedingConference paperpeer-review

Abstract

In this paper, a hybrid Doherty power amplifier (DPA) using dynamic input power splitting for 3.5 GHz is presented and compared to another Doherty with a conventional Wilkinson input divider sharing the same output structure. The amplifier is designed in a novel hybrid configuration, where a MMIC consisting of two parallel GaN transistors with input prematching are fully integrated on chip and used as the main and peak amplifiers. The remaining passive structures are implemented at PCB level on a RO4350B. The results at 3.5 GHz under continuous wave operation show 45 dBm of maximum output power with over 41% of PAE and Drain efficiency over 47% in a 6dB output power backoff (OBO) and 7 dB of gain for maximum output power.
Original languageEnglish
Title of host publication2021 IEEE Topical Conference on RF/Microwave Power Amplifiers for Radio and Wireless Applications, PAWR 2021
PublisherIEEE Xplore
Pages44 - 47
Number of pages4
ISBN (Electronic)9780738143675
ISBN (Print)978-1-6654-0408-2, 978-1-6654-0409-9
DOIs
Publication statusPublished - 17 Jan 2021
Event2021 IEEE Topical Conference on RF/Microwave Power Amplifiers for Radio and Wireless Applications (PAWR) - San Diego, Calif., Virtuell, United States
Duration: 17 Jan 202120 Jan 2021

Publication series

Name2021 IEEE Topical Conference on RF/Microwave Power Amplifiers for Radio and Wireless Applications, PAWR 2021

Conference

Conference2021 IEEE Topical Conference on RF/Microwave Power Amplifiers for Radio and Wireless Applications (PAWR)
Abbreviated titlePAWR 2021
Country/TerritoryUnited States
CityVirtuell
Period17/01/2120/01/21

Keywords

  • Doherty
  • GaN
  • Hybrid
  • MMIC
  • Power divider

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Instrumentation
  • Computer Networks and Communications

Fields of Expertise

  • Information, Communication & Computing

Treatment code (Nähere Zuordnung)

  • Experimental

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