Miles A. Copeland
Miles A. Copeland’s 31-year career is marked by the strength of his achievements as a university teacher, inventor, researcher, and mentor. His innovative approach to industry-university collaboration supported the rapid development of the telecommunication and microelectronics industries in Canada. He co-authored, with Northern Telecom (Nortel), a ground-breaking paper on the use of switched capacitors as resistor equivalents, which demonstrated that filter RC time constants on-chip could depend on the ratio of capacitor sizes. This results in much better integration, repeatability, and accuracy when implementing analog filters on chip than is possible with ordinary resistors. The “filter codec” developed subsequently at Nortel used switched capacitor filtering. With this innovation the company became an early leader in the shift to fully electronic switching networks. Other research work done by Miles's graduate students included much cited studies of the matching of on-chip capacitors and transistors, and how to design on-chip transformers and inductors in CMOS/BiCMOS technologies. This supported the design of fully integrated on-chip radios at Ghz frequencies.
An IEEE Fellow, Dr. Copeland is a Professor Emeritus with Carleton University, Ottawa, Ontario, Canada.