Dr Steve Davies
Profile
Biographical Information
- Senior Lecturer/Lecturer, University of Bath 1995-
- Senior Research Fellow/Senior Experimental Officer/PDRA, University of Kent 1986-1995
- PGRA, University of Kent 1982-1986
- PhD (Kent) 1986
- MSc (Leicester) 1981
- BSc (Sheffield) 1980
Research Interests
My research interests involve the design and construction of front-end instrumentation for millimetre-wave molecular line astronomy and the fabrication of micromachined detector devices required for such instrumentation. A long term collaboration with the University of Kent and the Rutherford Appleton Laboratory led to the development of three superconducting mixer receivers, spanning 210-510 GHz, which all operated as facility instruments on the James Clerk Maxwell Telescope, Hawaii. We have recently finished the construction of an 810 GHz receiver for the TIRGO telescope on the Gornergrat, Switzerland.
Other applications at terahertz frequencies are waiting for cost-effective technology to become available. For both specialised scientific applications such as astronomy and mass-market applications such as communications, it is evident that future generations of instrumentation will require a more integrated approach to device fabrication. I am interested in the use of microfabrication and micromachining methods to make not just high frequency devices, but also the embedding circuits in which they are mounted.
Publications
Littlejohn, S., Nogaret, A., Davies, S. R., Henini, M., Beere, H. E. and Ritchie, D. A., 2011. Microwave power generation by magnetic superlattices. Applied Physics Letters, 99 (24), 242107.
Siles, J. V., Maestrini, A., Alderman, B., Davies, S. R., Wang, H., Treuttel, J., Leclerc, E., Narhi, T. and Goldstein, C., 2011. A single-waveguide in-phase power-combined frequency doubler at 190 GHz. IEEE Microwave and Wireless Components Letters, 21 (6), pp. 332-334.
Siles, J., Maestrini, A., Alderman, B. and Davies, S. R., 2011. A single-waveguide in-phase power-combined frequency doubler at 190 GHz. IEEE Microwave and Wireless Components Letters, 21 (6), pp. 332-334.
Siles, J., Maestrini, A. and Davies, S., 2010. Single-waveguide power-combined multipliers for next generation LO sources above 100 GHz. In: European Microwave Integrated Circuits Conference, 2010-09-27 - 2010-09-28, Paris.
Siles, J. V., Maestrini, A., Davies, S., Alderman, B. and Wang, H., 2010. Single-waveguide power-combined multipliers for next generation LO sources above 100 GHz. In: European Microwave Integrated Circuits Conference (EuMIC) 2010. IEEE Computer Society, pp. 234-237.
Treuttel, J., Thomas, B., Maestrini, A., Wang, H., Alderman, B. and Davies, S., 2009. A 380 GHz sub-harmonic mixer using MMIC foundry based Schottky diodes transferred onto quartz substrate. In: 20th International Symposium on Space Terahertz Technology, 2009-04-20 - 2009-04-22, Charlottesville.
Siles, J., Maestrini, A., Alderman, B. and Davies, S., 2009. A novel dual-chip single-waveguide power combining scheme for millimeter-wave frequency multipliers. In: 20th International Symposium on Space Terahertz Technology, 2009-04-20 - 2009-04-22, Charlottesville.
Alderman, B., Sanghera, H., Thomas, B., Matheson, D., Maestrini, A., Wang, H., Treuttel, J., Siles, J., Davies, S. R. and Narhi, T., 2008. Integrated Schottky structures for applications above 100 GHz. In: 38th European Microwave Conference, 2008-10-27 - 2008-10-31, Amsterdam.
Alderman, B., Sanghera, H., Thomas, B., Matheson, D., Maestrini, A., Wang, H., Treuttel, J., Siles, J. V., Davies, S. R. and Narhi, T., 2008. Integrated Schottky structures for applications above 100 GHz. In: European Microwave Integrated Circuit Conference: EuMIC 2008. IEEE, pp. 202-205.
