Recent Publications (1993-1997)

• Yassin, G. Robson, M. and Dffett-Smith, P. J. (1993): ``The electrical characteristics of a conical horn-reflector antenna employing a corrugated horn,'' IEEE Trans. Antenna Propagat., AP--41, pp. 357.
• Robson, M., Yassin, G., Woan, G., Wilson, D. M. A., Scott, P. F., Lasenby, A. N., Kenderdine, S., and Duffett-Smith, P. J., (1993): ``The Cosmic Anisotropy Telescope,'' Astron. Astrophys., 277, 314.
• Withington, S. and Yassin, G. (1993): ``Spectral domain analysis of submillimeter-wave microstrip filters,'' International Journal of Infrared and Millimeter Waves, 14, pp. 1975.
• Yassin, G. Padman, R. and Withington S. (1994): ``Finline mixers for imaging arrays,'' In Multifeed Systems for Radiotelescopes, D. T. Emirson and J. M. Payne (eds.), ASP Conf. Series vol. 75, pp. 358.
• O'Sullivan, C., Yassin, G., Woan, G., Scott, P. F., Saunders, R., Robson, M., Pooley, G., Lasenby, A. N., Jones, M., Hobson, M. P., and Duffett-Smith, P. J., (1995): ``A search for primordial anisotropies in the CMBR: first observations at 13.5 GHz with the CAT,'' Mon. Not. R. Astron. Soc., 274, pp. 861--868.
• Yassin, G., and Wthington, S., (1995): ``Electromagnetic models for superconducting millimeter-wave and submillimeter-wave microstrip transmission line,'' J. Phys. D: Appl. Phys., 28, pp. 1983--1991.
• Withington, S. and Yassin, G. (1995): `` A comparison of electromagnetic models for millimeter-wave microstrip transmission lines,'' Proc. 3rd International Workshop on Terahertz Electronics, Zermatt, AUE.
• Withington, S. and Yassin, G., (1996): ``Theoretical analysis of superconducting submillimetre wave microstrip transmission line,'' Proceedings of the Seventh International Symposium on Space Terahertz Technology, 12--14 March University of Virginia, Charlottessville, USA.
• Withington, S., Yassin, G., and Buffey M., (1996): ``A Horn-Reflector antenna for high performance submillimeter wave applications,'' Proceedings of the Seventh International Symposium on Space Terahertz Technology, 12--14 March University of Virginia, Charlottessville, USA.
• Yassin, G., Withington, S., and Padman, R., (1996): ``A broad band 230 GHz antipodal finline mixer - recent results,'' Proceedings of the Seventh International Symposium on Space Terahertz Technology, 12-14 March University of Virginia, Charlottessville, USA.
• Yassin, G., and Withington, S., (1996): ``Loss calculation of normal and superconducting millimeter and submillimeter-wave striplines,'' Proceedings of the Third International Conference on Computation in Electromagnetics, 10--12 April 1996, Bath, UK.
• Yassin, G., and Withington, S., (1996): ``Analytical expression for the input impedance of a microstrip probe in waveguide,'' International Journal of Infrared and Millimeter Waves, 14, pp. 1635.
• Yassin, G., Withington, S., and Padman, R., (1997): ``Electromagnetic design of antipodal finline mixers at submillimeter-wave frequencies ,'' Proceedings of the 8th International Symposium on Space Terahertz Technology, 25--27 March, Harvard-Smithsonian Centre for Astrophysics, USA.
• Withington, S. and Yassin, G. (1997): ``An investigation of the input impedance of a microstrip probe in waveguide ,'' Proceedings of the 8th International Symposium on Space Terahertz Technology, 25--27 March, Harvard-Smithsonian Centre for Astrophysics, USA.
• Yassin, G., Padman, R., Withington, S., Jacobs, K. and Wulff, S. (1997): ``A broad band antipodal finline mixer for astronomical imaging arrays,'' Electron. Lett., vol. 33, pp. 498.
• Withington, S., Yassin, G., Buffey M., and Norden, C. (1996): ``A Horn-Reflector antenna for high performance submillimeter imaging arrays,'' International Journal of Infrared and Millimeter Waves, 18, pp. 341-358.
• Yassin, G. and Withington, S. (1997):``Design of a broad band finline SIS mixer at 345 GHz,'' To appear in the Proc. 5th International Workshop on Terahertz Electronics, Grenoble, France.
• Withington, S., Yassin, G., and Buffy, M. (1997):``Submillimeter-wave technology for high-redshift extragalactic spectral line astronomy,'' To appear in the Proc. 5th International Workshop on Terahertz Electronics, Grenoble, France.

Selected Publications from Early Work (partial list)

• Yassin, G. and Laine', D. C. (1981): ``Elliptical oscillation in molecular beam maser with disk resonator,'' Electron. Lett., 17, 156.
• Laine', D. C. and Yassin, G., (1981): `` Bistability of elliptically polarised oscillation in a molecular beam maser operated with a disc resonator, '' Phys. Lett., 87A, 33.
• Yassin, G. and Laine', D. C. (1981): ``Super-sensitive hyperfine structure spectrometer employing a molecular beam maser oscillation with quasi-optical resonator,'' Proc. Hertzian Optics and Dielectrics, 14--16th September, Toulouse (France), 368.
• Yassin, G. and Laine', D. C. (1985): ``Rectangular flat-roof microwave resonator for molecular beam masers,'' J. Phys. D.: Appl. Phys., 18, 1978.
• Yassin, G. and Laine', D. C. (1985): ``Rotation of elliptical oscillation in a molecular beam maser in a weak axial magnetic field,'' Phys. Lett. 113A, 248.
• Laine', D. C., Davis, J. A. and Yassin, G., (1987): ``Pulsatory and chaotic behavior of a molecular beam maser oscillation,'' Proc. IX colloque Hertzian Optics and Dielectric 4--6 September, Pisa (Italy).

Research Interests
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