INRS-EMT Millimeter Wave Laboratory: Circuits, Modules and Interferometric Systems

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The presentation highlights the use of interferometric techniques in millimeter wave systems such as high data-rate communication systems, radar sensors or broadband quadrature interferometric mixers. The main advantage of these mixers, compared to conventional ones, are the reduced power requested for the operation. The fabrication technologies used are MHMIC, RW, SIW. All circuits and modules are designed and characterised in our millimeter- wavelaboratory. Fabrication uses outside facilities. As an initial step, computer models based on the VNA measurements are used in computer simulations of the systems to validate the architecture and functionality. This allows important cost reduction on module/transceiver prototypes. Test benches and some measurement results of the fabricated prototypes, from 24 GHz up to 90 GHz are presented and discussed. Future work will include designs at higher frequency, over D-band (110 - 170 GHz), to meet the ongoing requirements of the academia and industry. 


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  • Date: 03 Apr 2025
  • Time: 12:30 PM to 02:00 PM
  • All times are (UTC-04:00) Eastern Time (US & Canada)
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  • Starts 02 March 2025 12:00 AM
  • Ends 03 April 2025 12:00 PM
  • All times are (UTC-04:00) Eastern Time (US & Canada)
  • No Admission Charge

  Speakers

Prof. Serioja Ovidiu Tatu of Institut National de Recherche Scientifique - Énergie Matériaux et Télécommunications

Biography:

Serioja Ovidiu Tatu (M’05, SM’13) received the B.Sc. degree in radio engineering from Polytechnic University, Bucharest, Romania, in 1989,
and the M.Sc.A. and the Ph.D. degrees in electrical engineering from the École Polytechnique of Montréal, Canada, in 2001, and 2004,
respectively. He was with the National Company of Telecommunications, Rom-Telecom, Bistrita-Nasaud, Romania; RF Engineer and Head of the
Telecommunications Laboratory from 1989 to 1993, and Technical Manager from 1993 to 1997. 

Since 2004, Dr. Tatu is with « Institut National de Recherche Scientifique - Énergie Matériaux et Télécommunications », Montréal, Québec, Canada: 2004 - 2005 post doctorate fellow, 2005-2009 assistant professor, 2009-2018 associate professor, and from 2018 full professor.
His current research interests are six-port technology, microwave/ millimeter-wave circuit design, radio transceivers and radar sensors.
In addition, Dr. Tatu is an active amateur radio from four decades and interested in restoration and conservation of radio equipment as a SQCRA (Société Québécoise des Collectionneurs de Radios Anciens) member since 2016.