BEGIN:VCALENDAR VERSION:2.0 PRODID:IEEE vTools.Events//EN CALSCALE:GREGORIAN BEGIN:VTIMEZONE TZID:Europe/Amsterdam BEGIN:DAYLIGHT DTSTART:20260329T030000 TZOFFSETFROM:+0100 TZOFFSETTO:+0200 RRULE:FREQ=YEARLY;BYDAY=-1SU;BYMONTH=3 TZNAME:CEST END:DAYLIGHT BEGIN:STANDARD DTSTART:20261025T020000 TZOFFSETFROM:+0200 TZOFFSETTO:+0100 RRULE:FREQ=YEARLY;BYDAY=-1SU;BYMONTH=10 TZNAME:CET END:STANDARD END:VTIMEZONE BEGIN:VEVENT DTSTAMP:20260522T124518Z UID:57176F6F-D1B7-4170-8EA9-9A028D5DD82B DTSTART;TZID=Europe/Amsterdam:20260629T154500 DTEND;TZID=Europe/Amsterdam:20260629T171500 DESCRIPTION:Free in-person event\, no registration required.\n\nAbstract\n\ nDoherty power amplifiers are widely used to achieve high efficiency with high-PAPR signals\, but their extension to millimetre-wave frequencies is far from trivial. At high frequency\, classical Doherty assumptions no lon ger hold\, and efficiency\, gain\, bandwidth\, linearity\, and implementat ion constraints become strongly interdependent.\n\nThis lecture provides a design-oriented perspective on the key challenges limiting high-frequency Doherty operation and discusses practical methodologies to address them. Topics include gain behaviour\, on-chip power combination\, bandwidth limi tations\, and linearity degradation\, with emphasis on architectural trade -offs rather than idealized solutions. The discussion is supported by meas ured GaN MMIC examples for 5G and satellite applications\, showing that su ccessful high-frequency Doherty designs rely on balanced co-design choices rather than isolated performance optimization.\n\nSpeaker bio\n\nVittorio Camarchia is an Associate Professor at the Department of Electronics and Telecommunications\, Politecnico di Torino\, Italy. His research focuses o n high-efficiency and high-linearity RF/microwave power amplifiers for 5G/ 6G and satellite communications\, with emphasis on load-modulated architec tures\, including Doherty\, Chireix and LMBA amplifiers\, GaN/GaAs MMIC de sign\, and broadband linearization. He is Chair of IEEE MTT-S TC-23 Wirele ss Communications for 2025–2026 and an IEEE MTT-S Distinguished Microwav e Lecturer for 2026–2028.\n\n[]\n\nRoom: 0.150\, Bldg: Flux (building 19 )\, Eindhoven University of Technology\, De Groene Loper 19\, Eindhoven\, Noord-Brabant\, Netherlands\, 5612AP LOCATION:Room: 0.150\, Bldg: Flux (building 19)\, Eindhoven University of T echnology\, De Groene Loper 19\, Eindhoven\, Noord-Brabant\, Netherlands\, 5612AP ORGANIZER:beneluxapmtt@gmail.com SEQUENCE:30 SUMMARY:DML Talk by Vittorio Camarchia: "High-Frequency Doherty Power Ampli fiers: Challenges and Design Methodologies" URL;VALUE=URI:https://events.vtools.ieee.org/m/560771 X-ALT-DESC:Description: <br /><p><em>Free in-person event\, no registration required.</em></p>\n<p><strong>Abstract</strong></p>\n<p>Doherty power am plifiers are widely used to achieve high efficiency with high-PAPR signals \, but their extension to millimetre-wave frequencies is far from trivial. At high frequency\, classical Doherty assumptions no longer hold\, and ef ficiency\, gain\, bandwidth\, linearity\, and implementation constraints b ecome strongly interdependent.</p>\n<p>This lecture provides a design-orie nted perspective on the key challenges limiting high-frequency Doherty ope ration and discusses practical methodologies to address them. Topics inclu de gain behaviour\, on-chip power combination\, bandwidth limitations\, an d linearity degradation\, with emphasis on architectural trade-offs rather than idealized solutions. The discussion is supported by measured GaN MMI C examples for 5G and satellite applications\, showing that successful hig h-frequency Doherty designs rely on balanced co-design choices rather than isolated performance optimization.</p>\n<p><strong>Speaker bio</strong></ p>\n<p>Vittorio Camarchia is an Associate Professor at the Department of E lectronics and Telecommunications\, Politecnico di Torino\, Italy. His res earch focuses on high-efficiency and high-linearity RF/microwave power amp lifiers for 5G/6G and satellite communications\, with emphasis on load-mod ulated architectures\, including Doherty\, Chireix and LMBA amplifiers\, G aN/GaAs MMIC design\, and broadband linearization. He is Chair of IEEE MTT -S TC-23 Wireless Communications for 2025&ndash\;2026 and an IEEE MTT-S Di stinguished Microwave Lecturer for 2026&ndash\;2028.</p>\n<p><img src="htt ps://events.vtools.ieee.org/vtools_ui/media/display/0e420f74-07f4-4a1d-869 c-1a5cf57e5f64" alt="" width="132" height="176"></p> END:VEVENT END:VCALENDAR