ECE Faculty Candidate
Wednesday **Special date, time, and location** May 9 11:00 - 11:50 AM Kelley 1005 Rambabu Karumudi Faculty Member Department of Electrical and Computer Engineering University of Alberta, Canada Novel UWB Systems and Applications Ultra wideband is a new emerging short-range device technology with potential benefits for wireless communications, radars and security applications. UWB communication devices could be used in wirelessly distribute services such as phone, cable, and computer networking throughout a building or a home. UWB has potential in both home and business markets, based on its low cost as well as high-speed data transmissions capability, and could be well suited for various video distribution applications. UWB radars find its application as medical imaging radars, wall-probing radars, and through-wall probing radars. Apart from these applications UWB technology will be most needed technology for various surveillance applications. Design of UWB systems and components needs extension for conventional theory due to its huge bandwidth. Due to the existing narrow band applications in the proposed (3.1 -10.6 GHz) UWB band, UWB systems have to follow stringent radiated power spectral mask. My research focuses on development of new design methodologies for UWB front-end components based on electromagnetic physics of the component and studies various transceiver topologies for wireless communication and radar applications. This talk will discuss the derivation of time domain transfer function for different antennas in transmitting and receiving mode, and design of multiple notch filters to avoid interference from existing narrow band applications. Also discusses the methods for angle of arrival estimation and its accuracy in the presence of antenna thermal noise. In this talk I will demonstrate the capability of UWB radar for non-invasive measurements of patients vital activities, and characterizing the materials for security applications. Biography: Rambabu received his PhD degree in electrical and computer engineering from University of Victoria, Canada, with Governor General's Gold medal in 2005. From July 2005 to January 2007 he was with Institute for Infocomm Research (I2R), Singapore, as a research scientist. Currently he is a faculty member at department of electrical and computer engineering, University of Alberta, Canada. His research interests are in design and development of miniaturized microwave and millimeter wave components and systems. Currently he is working on ultra wideband radar systems for medical and security applications. He has authored/ co-authored over 50 journal and conference papers on this topic. He received excellent recruitment award and Andy Farquharson award for excellence in graduate student teaching from University of Victoria in 2002 and 2004 respectively. He has a patent for cellular base station antenna and is commercialized through Bharat Electronics LTD, India. This antenna design won best R&D award in 2006.
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