Millimeter-Wave Integrated Phased Arrays for Wireless Communication and Imaging
Monday, October 29, 2012 - 4:00pm - 4:50pm KEC 1001 Arun Natarajan Assistant Professor School of EECS Oregon State UniversitySpeaker Biography: Arun Natarajan received the B.Tech. degree in electrical engineering from the Indian Institute of Technology, Madras, in 2001 and the M.S. and Ph.D. degrees in electrical engineering from the California Institute of Technology (Caltech), Pasadena, in 2003 and 2007, respectively. He joined the School of Electrical Engineering and Computer Science at Oregon State University as an Assistant Professor in 2012. Prior to this, he was a Research Staff Member in the communication and computation subsystems area at the IBM T. J. Watson Research Center in Yorktown Heights, NY. His research has focused on high-frequency integrated circuits for wireless communication and imaging, and on self-healing circuits for increased yield in sub-micron process technologies. Dr. Natarajan received the National Talent Search Scholarship from the Government of India [1995-2000], the Caltech Atwood Fellowship in 2001, the Analog Devices Outstanding Student IC Designer Award in 2004, the IBM Research F!
ellowship in 2005, and the 2011 Pat Goldberg Memorial Best Paper Award in CS/EE/Math at IBM Research. He serves on the Technical Program Committee of the IEEE Radio-Frequency Integrated Circuits (RFIC) Conference and International Microwave Symposium (IMS). Abstract: Advanced silicon technologies have the potential to transform wireless communication and imaging at millimeter-wave frequencies. The large available bandwidths and short wavelengths at these frequencies enable multi-Gb/s wireless communication and high-resolution active/passive imaging. Implementing such systems in silicon technologies allows us to realize complex, reconfigurable architectures, achieving excellent system performance with low costs and high yield. Phased arrays are an example of such complex multi-element mm-wave systems and this talk will describe mm-wave phased arrays in CMOS and SiGe technologies, focusing on highly-integrated state-of-the-art SiGe 60GHz phased-array transmitter and receiver ICs targeted at multi-Gb/s wireless applications. The beam steering capabilities of the packaged transmitter and receiver are demonstrated through a 5Gb/s link at 60GHz that uses reflections from indoor surfaces to establish a link between the transmitter and receiver when the line-of-sight is blocked. Early results from phased-array and multi-static radar measurements demonstrate the capability of such arrays for imaging applications. On-going research on applications and design approaches for large-scale arrays and efficient electromagnetic interfaces present opportunities for future research and innovation in this area.
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