BEGIN:VCALENDAR VERSION:2.0 PRODID:-//Memento EPFL// BEGIN:VEVENT SUMMARY:IEM Seminar Series : Silicon-micromachined THz systems - enabling the large-scale exploitation of the THz frequency spectrum? DTSTART:20230224T150000 DTEND:20230224T160000 DTSTAMP:20260428T060535Z UID:1aa5e1100e041edfa1d46a223ec6713ad93cabe15067b6494e27103b CATEGORIES:Conferences - Seminars DESCRIPTION:Prof. Joachim Oberhammer\, Ph.D.\nKTH Royal Institute of Techn ology\, School of Electrical Engineering and Computer Science\, Stockholm\ , Sweden\nAbstract\nThe sub-THz frequency spectrum (100-1000 GHz)\, though already exploited for scientific applications for several decades\, is st ill lacking technology solutions in particular for system integration\, hi gh-performance passive components and interfaces including antennas. Furth ermore\, for a large-scale exploitation of these frequency bands in differ ent applications in society\, different fabrication technologies are neede d which are volume-manufacturable and have high yield and product uniformi ty. After an introduction to THz frequencies and applications\, this talk shows the state of the art in silicon-micromachining fabrication technique s\, which offer outstanding RF performance\, proven high-volume manufactur ability and system integration capability. Several technology demonstrator s based on very low loss micromachined waveguides will be presented\, incl uding filters (telecommunication diplexers from D-band frequencies with Q- factors of 1600\, up to 750 GHz filters with Q-factors of 900)\, steerable and corporate-fed antenna arrays up to 39-dBi gain in different bands fro m 200 to 400 GHz\, 220-330 GHz phase shifters with best phase-shift to los s performance in any technology at several sub-THz frequency bands\, and m icro-electromechanical waveguide switches in several bands up to 750 GHz. Furthermore\, micromachined system level solutions including a D-band comm unication link and a 240 GHz car radar front-end will be presented. The ta lk closes with a novel radar sensor development involving beam-steering an d beam-shape switching enabled by micromachined hardware co-developed with computational-imaging signal-processing methods.\n\nBiography\nJoachim Ob erhammer is a professor in Microwave and THz Microsystems at the School of Electrical Engineering and Computer Science\, Dept. of Micro and Nanosyst ems\, KTH Royal Institute of Technology in Stockholm\, Sweden\, since 2015 . He has lead radio-frequency/microwave/terahertz micro-electromechanical systems research at KTH for over 15 years. He is author and co-author of m ore than 150 reviewed research papers and holds 4 patents.\nHis career inc ludes positions as guest professor "Chair of Excellence" at Universidad Ca rlos III de Madrid\, Spain\, and guest researcher stays at Nanyang Technol ogical University\, Singapore and at the NASA-Jet Propulsion Laboratory\, USA. He is recipient of an European Research Council (ERC) Consolidator Gr ant\, has been an Associate Editor of IEEE Transactions on Terahertz Scien ce and Technology 2018-2021\, Steering Group member of the IEEE MTT-S and AP-S Chapters Sweden since 2009\, has been Steering Group member of the Yo ung Academy of Sweden 2014-2016\, Scientific coordinator of the EU RIA H20 20 projects Car2TERA and M3TERA\, as well as PI of two SEK 35 million stra tegic framework grants on electronics and terahertz communication\, and re ceived six Best Paper Awards at IEEE conferences. LOCATION:ELA 2 https://plan.epfl.ch/?room==ELA%202 https://epfl.zoom.us/j/ 66584072310 STATUS:CONFIRMED END:VEVENT END:VCALENDAR