Data and Time October 14 , 2010, 4:30-5:45 PM
Location Galbraith Building, Room 248
Host Leon Yuan

High-Speed Data Transmission Using Substrate Integrated Waveguide-Type Interconnects

Asanee Suntives

The Edward S. Rogers Sr. Department of Electrical and Computer Engineering (Electromagnetics)


lectronic circuits have evolved into multifunctional and highly integrated systems. Moreover, the demands for high-speed data transfer are ever increasing that often require multi-gigahertz clock frequencies and ultra-high-speed and wideband data transmission between chips. However, fundamental interconnect limitations prevent from full accomplishment of
multi-gigabit per second data rates. Most importantly, increased conductor and dielectric losses at high frequencies can significantly reduce the channel bandwidth. In addition, crosstalk and electromagnetic interference further deteriorate the system performance, especially in compact routing networks. Therefore, alternative interconnects that enable ultra-high-speed/high-frequency signaling while maintaining good signal quality are needed. This work proposes a new method of high-speed data transfer by utilizing waveguide-type interconnects, which offer efficient and confined data transmission due to their low loss and excellent isolation properties. Excellent transmission quality is demonstrated experimentally up to a data rate of 5 Gb/s. Furthermore, to compensate for the relatively larger footprint occupied by the waveguide compared to conventional printed lines, a substrate reuse approach is proposed by inserting additional lowpass channels inside the waveguide. This hybrid technique proves to increase the aggregate transmission capacity (to 15 Gb/s) by simultaneously utilizing the lowpass and bandpass channels. Finally, an alternative parallel data transmission system is introduced by harnessing multimode transmission through the same waveguide channel and using orthogonal modes. A number of transition structures and mode launchers to excite and retrieve TE10 and TE20 modes are presented. Experimental characterizations demonstrate excellent transmission quality through the dual-channel system for a data rate of 1 Gb/s/channel.



Asanee Suntives received his Ph.D. degree from McGill University in 2009. From 2001 to 2003, he was a manufacturing development engineer for lightwave component analyzers at Agilent Technologies. Currently, he is an NSERC postdoctoral fellow in Prof. Hum's group focusing on leaky-wave and reconfigurable antennas. He is also a reviewer for many journal publications such as IEEE transactions on Microwave Theory and Techniques, Electromagnetic Compatibility and Antennas and Propagation.