B Science, B Science (Hons), M Science, PhD
Associate Professor, Griffith School of Engineering
Contact details for Associate Professor Steven O'Keefe
Research expertise
Assoc Prof O'Keefe works extensively in the area of compact and efficient antenna designs for personal communication devices and wireless networks. Much of this work has been aimed at multiband antennas for 3G and future technology cellular handsets. His interests also include other wireless technologies such as RFID, industrial monitoring and control and RDS and geophysical electromagnetics such as EM emission from rock fracture.
Current teaching areas
- Transmission Lines
- Communication Systems and Circuits
- Data Communications
- Linear Electromagnetics
- Advanced Communication Systems
Publications
- O’Keefe S.G. and Thiel D.V., "Electromagnetic emissions from underground rock fracture events.", Atmospheric and Ionospheric Electromagnetic Phenomana Associated with Earthquakes., Ed. Hayakawa M. 1999 pa 233-244
- O'Keefe Y., Thiel D.V. & O'Keefe S.G. 2005, "Time-Dependent Surface Impedance from Sferics", in Institute of Electrical and Electronics Engineers Geoscience and Remote Sensing Letters, vol.2, no.2, Institute of Electrical and Electronic Engineers, US.
- O’Keefe S.G., Kingsley S.P. and Saario S, 2002, "FDTD simulations of radiation characteristics of half volume HEM and TE mode dielectric resonator antennas." Institute of Electrical and Electronics Engineers Transactions on Antennas and Propagation 50, 2 pa 175-179.
- O'Keefe S.G. , Thiel D.V. and Davey N., "Fracture induced electromagnetic emissions in the mining industry.", International Journal of Applied Electromagnetics. 2000, 12, 3 & 4, pa 203-209.
- Schlub R., Thiel D.V., Lu J.W. and O'Keefe S.G., 2000, "Dual band six element switched parasitic array for cellular communications systems". Electronics Letters, 36, p. 1342-1434.
- Durnan G. J., Thiel D. V. and O'Keefe S. G., 1999, "Switched parasitic feeds for parabolic antenna angle diversity, Microwave and Optical Technology Letters", 23, p. 200-203.
- James D.A., O’Keefe S.G. and Thiel D.V., "Eddy current modelling using the impedance method for surface impedance profiling.", Institute of Electrical and Electronics Engineers Transactions on Magnetics, 1999, 35, 3, pa 1107-1110.
- Kingsley S.P. and O’Keefe S.G. "Beam steering and monopulse processing of probe-fed dielectric resonator antennas." IEE Proceedings, Radar Sonar and Navigation, 1999, 146, 3, pa 121-125.
- Preston S.L., Thiel D.V., Smith T.A., O’Keefe S.G. and Lu J.W., 1998. "Base-Station Tracking in Mobile Communications using a Switched Parasitic Antenna Array." Institute of Electrical and Electronics Engineers Transactions on Antennas and Propagation, 1998, 46, 6, pa 841-844.
- Garner, S.J., Thiel, D.V., and O'Keefe, S.G., "Surface impedance time domain reflectometry for the determination of ice depth." Geophys. Res. Lett., 1997, 24 (13) p1599-1602.
- Saario S.A., Thiel D.V., O'Keefe S.G. and Lu J.W., "Analysis of Ferrite Beads for RF Isolation on Straight Wire Conductors.", Electronics Letters 1997,33,16, pa 1359-1360.
- Preston S.L., Thiel D.V., Lu J.W., O’Keefe S.G. & Bird T.S. "Electronic beam Steering Using Switched Parasitic Elements." Electronics Letters 1997, 33,1, pa 7-8.
- O'Keefe S.G. & Thiel D.V. "Conductivity Effects on Electromagnetic Emissions (EME) from Ice Fracture." Journal of Electrostatics, 1996, 36, pa 225-234.
- O'Keefe S.G. and Thiel D.V. "A Mechanism for the production of Electromagnetic Radiation during the fracture of Brittle Materials." Physics of the Earth and Planetary Interiors, 1995 89(1-2) pa 127-135.
- O'Keefe S.G. & Thiel D.V. "Electromagnetic Emissions during Rock Blasting." Geophysical Research Letters, 1991,18,(5), pa 889-892.