Transmission-Line Class-E Power Amplifier With Extended Maximum Operating Frequency

Mury Thian, Vincent F. Fusco

Research output: Contribution to journalArticlepeer-review

16 Citations (Scopus)


A novel Class-E power amplifier (PA) topology with transmission-line load network is presented in this brief. When compared with the classic Class-E topology, the new circuit can increase the maximum operating frequency up to 50% higher without trading the other Class-E figures of merit. Neither quarterwave line/massive radio-frequency choke for collector/drain biasing nor additional fundamental-frequency output matching circuit are needed in the proposed PA, thus resulting in a compact design. Closed-form formulations are derived and verified by simulations with practical design limitations carefully taken into consideration and good agreement achieved.

Original languageEnglish
Article number5751660
Pages (from-to)195-199
Number of pages5
JournalIEEE Transactions on Circuits and Systems II: Express Briefs
Issue number4
Publication statusPublished - Apr 2011

ASJC Scopus subject areas

  • Electrical and Electronic Engineering


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