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Status
- 2020-2022, Transactions Past Associate Editors, MTT Transactions, Publications**
- Associate Editor, Letters Editors, Microwave and Wireless Technology Letters, Publications**
- Chair, TC-23 WIRELESS COMMUNICATIONS, Technical Committees**
- Member, TC-12 MICROWAVE HIGH-POWER TECHNIQUES, Technical Committees**
- Member, TC-23 WIRELESS COMMUNICATIONS, Technical Committees**
- TC-23 WIRELESS COMMUNICATIONS, Technical Committees**
Biography
Vittorio Camarchia is an Associate Professor at the Department of Electronics and Telecommunications, Politecnico di Torino, Italy. His research focuses on high-efficiency RF/microwave power amplifiers and transmitters for 5G/6G and satellite communications, with emphasis on load-modulated architectures (Doherty, Chireix/LMBA), broadband linearization, and GaN/GaAs MMIC design. He has authored and co-authored numerous journal and conference papers, holds patents, and has served as Associate Editor and reviewer for IEEE journals. He actively collaborates with industry and European space/telecom programs, leading projects on wideband, highly linear GaN PAs and digital Doherty techniques. He is Chair of IEEE MTT-S TC-23 (Wireless Communications) for 2025–2026 and a Distinguished Microwave Lecturer for 2026–2028.
Presentations
High-Frequency Doherty Power Amplifiers: Challenges and Design Approaches
The Doherty power amplifier remains a leading solution for high efficiency at power back-off, yet its translation to C/Ku/Ka bands and mmWave magnifies practical limitations: reduced device gain, strong parasitics, transmission-line losses, and AM/PM introduced by load modulation. This talk reviews circuit-level and system-aware design approaches that enable robust Doherty operation at high frequency. Topics include impedance-inverter realization and loss mitigation, output/load compensation networks, bandwidth extension strategies, driver and bias considerations, and linearity under wideband modulated signals (EVM/ACPR/NPR). We discuss MMIC implementations in GaN and GaAs, highlighting device-technology trade-offs, packaging, and measurement methodologies. Practical guidelines and recent results illustrate how to balance efficiency, bandwidth, and linearity to meet modern communication requirements.