University of
Toronto
Edward S.
Rogers, Sr., Department of Electrical and Computer Engineering
Colan G. M. Ryan (Ph.D. Candidate)
Bahen Building, Room 4167
10 King's College
Road
Toronto, Ontario, M5S 3G4, Canada
E-mail: colan.ryan@mail.utoronto.ca
Homepage: http://individual.utoronto.ca/colanryan
Research Interests
Periodic
structures, lens antennas, transmission-line metamaterials and their
application to antenna and microwave component design
Biography
Colan Ryan received his
B.A.Sc. in Electrical Engineering from
the University of Ottawa in Ottawa, Canada in
2006 and his M.A.Sc. in Electrical Engineering from
the Royal Military College of Canada, Kingston, Canada in
2008. He is current working towards his Ph.D. degree at
the University of Toronto.
In 2005, he
held co-op positions at the Office of the Information and Privacy Commissioner
of Canada and later in the Systems Engineering group at Edgewater
Computer Systems, Inc. in Ottawa. In 2006, he worked
at Carleton University as an NSERC Undergraduate Student
Researcher in the Department of Electronics. There, he developed a
MEMS-based reconfigurable PIFA antenna for handheld wireless devices and has
been jointly awarded a US patent on the design. After
completing his M.A.Sc. thesis on
wideband transmitarrays in collaboration with the Communication
Research Centre in Ottawa, he joined the Electromagnetics Group at the University of Toronto in
2009 under the supervision of Dr. George Eleftheriades; his research
interests include antenna design and transmission‑line metamaterials.
In his
spare time, Colan practices both Krav Maga and Taekwondo; he also has a keen
interest in medieval European history and 20th century history and
thinks it would be great to live in a museum one day.
Publications
[1] C.G.M.Ryan, and G.V.Eleftheriades, Single- and dual-band
transparent circularly polarized patch antennas with metamaterial loading, IEEE Antennas and Wireless Propagation Letters
(in press).
[2] V. Narasimhan and C. Ryan, Reconfigurable
multi-band antenna and method of operation of a reconfigurable multi-band
antenna, United States patent no. 8,339,328, issued December 25, 2012.
[3] C.G.M.Ryan,
and G.V.Eleftheriades, Two
Compact, Wideband, and Decoupled Meander-Line Antennas Based on Metamaterial
Concepts, IEEE Antennas and Wireless
Propagation Letters, vol. 11, pp. 1277-1280, November, 2012.
[4] C.G.M.Ryan,
and G.V.Eleftheriades, A single-ended all-pass generalized
negative-refractive-index transmission line using a bridged-T circuit, 2012
IEEE MTT-S International Microwave Symposium, Montreal, Canada, June 17-22,
2012.
[5] Colan G.M. Ryan and George
V. Eleftheriades, Multiband microwave
passive devices using generalized negative-refractive-index transmission lines
(invited paper), International Journal of RF and Microwave
Computer‑Aided Engineering, vol. 22, no. 4, pp. 459-468, July 2012.
[6] C.G.M.Ryan,
and G.V.Eleftheriades, Design of a printed dual‑band coupled‑line
coupler with generalised negative‑refractive‑index transmission
lines, IET Microwaves, Antennas, and Propagation, vol. 6, no. 6,
pp. 705-712, April 2012.
[7] C.G.M.Ryan, and G.V.Eleftheriades,
A
wideband metamaterial meander‑line antenna, European Conference on
Antennas and Propagation (EuCAP), Prague, Czech Republic, March 26-30, 2012.
[8] C.G.M.Ryan,
and G.V.Eleftheriades, A
printed dual‑band coupler using generalized negative‑refractive‑index
transmission‑lines, IEEE MTT-S International Microwave
Symposium, Baltimore, USA, June 5-10, 2011.
[9] C.G.M.Ryan,
and G.V.Eleftheriades, A dual-band
leaky wave antenna based on generalized negative-refractive-index transmission
lines, 2010 International Symposium on Antennas and
Propagation, Toronto, Canada, July 11-17, 2010.
[10] C. G. M. Ryan,
M.R. Chaharmir, J. Shaker, J. R. Bray, Y.M.M. Antar, and
A. Ittipiboon, A
wideband transmitarray using dual‑resonant double square rings, IEEE
Transactions on Antennas and Propagation, vol. 58, no. 5, pp. 1486-1493,
May 2010.
[11] C. G. M. Ryan,
M.R. Chaharmir, J. Shaker, J. R. Bray, Y.M.M. Antar, and A. Ittipiboon,
A
broadband transmitarray using double square ring elements, 13th Int.
Symposium on Antenna Technology and Applied Electromagnetics, Banff, AB, 2009.
[12] V. Narasimhan, C. Ryan,
and R. N Tait, Using MEMS capacitive switches in reconfigurable
antennae, Exhibition presentation at the 5th Canadian Workshop
on MEMS and Microfluidics, Montreal, QC, August, 2007.
Resume (pdf)
Teaching
ECE524 -
Microwave Circuits ECE320 - Fields
and Waves ECE110 - Electrical Fundamentals
