Dr Mohan Jacob

Name:	Dr Mohan Jacob
Position:	Principal Research Fellow
Organisation:	James Cook University
Department/Division:	Electrical Engineering
Primary Areas:	Engineering
	Science and technology
Expertise:	Superconductors, Dielectric Materials, Materials for wireless communication, Microwave chracterisation of Materials, Organic Semiconductors, Plasma Polymerization.
Organisation type:	Academic
Website:	www.jcu.edu.au
Personal Website:	www.eng.jcu.edu.au/Staff/Profiles/mohan-jacob/index.shtml
Notes:	Australian Research Fellowship, Member of IEEE, Member of Institute of Physics, Chartered Physicist.
Will do interviews except for:	Radio (live),TV (live)
Expert's direct contacts:
Phone:	07-47814379
Fax:	07-47815177
This expert is available for:	Research collaboration, Consulting work, Board/committee positions, Conference presentation opportunities, Other speaking engagements

Media Contact: (Note: For journalists only)
Contact:	Jim O'Brien
Phone:	07 4781 4822
Mobile:	0418 892 449
Postal:	James Cook University Townsville Queensland 4811

Publications:	Published over 60 peer refereed articles. Please visit: http://www.eng.jcu.edu.au/Staff/Profiles/mohan-jacob/publications.shtml 2006 M. V. Jacob, J. G. Hartnett, J. Mazierska, J. Krupka and M. E. Tobar, Microwave Characterisation of Barium Fluoride using TE011 Mode Dielectric Resonator, Cryogenics (in press accepted in June 2006). M. V. Jacob, J. Krupka, J. Mazierska and G. S. Woods, Cryogenic Complex Anisotropic Permittivity of Magnesium Fluoride, Materials Science & Engineering A, vol. 427, pp. 175-180 ( 2006). A. M. Abbosh, M. E. Bialkowski, M. V. Jacob , J. Mazierska, “Design of a compact ultra-wideband antenna, Microwave and Optical Technology Letters”, Vol. 48, pp. 1515-1518 (2006). M. V. Jacob, Influence of RF Heating on Microwave Loss, Proceedings on MIKON 2006 (May 22-26, Krakow Poland ), pp. 247-250, (2006). M. V. Jacob, J. Krupka, K. Derzakowski and J. Mazierska , “ Measurements of Thin Polymer Films Employing Split Post Dielectric Resonator Technique”, Proceedings on MIKON 2006 (May 22-26, Krakow Poland ), pp. 229-231, (2006). J. Mazierska, J. Krupka, M. Bialkowski, M. V. Jacob , “ Microwave Resonators and Their use as a Measurement Instruments and Sensors”, Third IEEE International Workshop on Electronic Design, Test and Applications, 2006. DELTA 2006, 17-19 Jan. 2006, pp. 163 - 167 (DOI 10.1109/DELTA.2006.67). J. Mazierska, M V. Jacob , How Accurately Can The Surface Resistance Of Various High Temperature Superconducting Films Be Measured Using The Dielectric Resonator Method? Journal of Superconductivity (accepted in January 2005). 2005 M. V. Jacob, Low Temperature Microwave Characterisation of Lithium Fluoride at Different Frequencies, Science and Technology of Advanced Materials, vol. 6, pp. 944-949 (2005). M. V. Jacob , J Mazierska and J Krupka, Dielectric Properties Of Yttrium Vanadate Crystals From 15 K – 295 K, Journal of Electroceramics, vol. 15, pp. 237- 241 (2005). K. P. Surendran, M. T. Sebastian, P. Mohanan, and M. V. Jacob , The effect of dopants on the microwave dielectric properties of Ba(Mg 0.33 Ta 0.67 )O 3 ceramics, J. Appl. Phys. Vol. 98 , 094114 (2005). M. V. Jacob A Sundaresan J. Mazierska and Y. Tanaka Investigations On Microwave Power Dependence Of High Quality Tl-1223 Thin Films On LSAT Substrate, IEEE Trans. On Applied Superconductivity, Vol. 15, Issue 2, pp. 3596 - 3599 (2005). M. V. Jacob J. Mazierska Y. Harada, T. Takahashi and M. Yoshizawa Microwave Characterization of As-Grown MgB2 Thin Films Prepared by Molecular Beam Epitaxy, IEEE Trans. On Applied Superconductivity, Vol. 15, Issue 2, pp. 3317 - 3320 (2005). M. V. Jacob, J. Mazierska amd M. Bialkowski, Measurement of Complex Permittivity of Low Temperature Co-fired Ceramic at Cryogenic Temperatures, Ceramic Engineering and Science Proceedings) - Vol. 26, issues 2-8, pp. 209-216 (2005). M. V. Jacob , J. Mazierska, and J. Krupka Microwave Characterisation of Calcium Fluoride in the temperature range 15-300K, Ceramic Engineering and Science Proceedings) - Vol. 26, issues 2-8, pp. 161-168 (2005). J. Mazierska, D. Ledenyov, M V. Jacob and J. Krupka, Precise Microwave Characterization of MgO Substrates for HTS Circuits with Superconducting Post Dielectric Resonator, Superconductor Science and Technology, vol. 18, pp. 18–23 (2005). M. V. Jacob and J. Krupka, “Low Temperature Complex Permittivity of MgF 2 at Microwave Frequencies”, Proceedings of Asia Pacific Microwave Conference Dec. 2005 China , pp. 3455-3458 (2005). A. M. Abbosh, M.E. Bialkowski, M. V. Jacob and J. Mazierska, “Investigations into an LTCC based ultra wideband antenna”, Proceedings of Asia Pacific Microwave Conference Dec. 2005 China , pp. 1525-1528 (2005). J. Mazierska, M. V. Jacob , D. Ledenyov and J. Krupka, “Loss Tangent Measurements of Dielectric Substrates with Two Resonators: Investigation into Accuracy Issues”, Proceedings of Asia Pacific Microwave Conference, Dec. ‘05 China , pp. 2370-2373 (2005). M. V. Jacob and J. Mazierska, Planar Ba(Mg x Ta y )O 3 Material for Emerging Microwave Technologies proceedings on IEEE TENCON Conference, Melbourne Nov. 21-24 2005, ID-04.4 (2005). M. V. Jacob, Are the parameters Q 0 ×f 0 , temperature coefficient of frequency and temperature coefficient of permittivity fundamental material constants? Proceedings on IEEE TENCON Conference Melbourne Nov. 21-24 2005, ID-04.3 (2005). A. M. Abbosh, M.E. Bialkowski, M. V. Jacob and J. Mazierska, Investigations into an LTCC based ultra wideband antenna, Proceedings of Asia Pacific Microwave Conference Dec. 2005 China, pp. 1525-1528, 2005. J. Mazierska, M. V. Jacob , D. Ledenyov and J. Krupka, Loss Tangent Measurements of Dielectric Substrates with Two Resonators: Investigation into Accuracy Issues, Proceedings of Asia Pacific Microwave Conference Dec. 2005 China , pp. 2370-2373, 2005. J. Mazierska , J. Krupka, M. V. Jacob , Precise Microwave Characterisation of Low Loss Dielectrics, Microwave Workshops and Exhibition MWE 2005 – Digest, pp. 295-300 (2005). 2004 M. V. Jacob, J. Mazierska and A. Knack, “Superconducting Narrow Passband Filter for Mobile Communication” Transactions of the Materials Research Society of Japan ,MRS-J vol. 29, No. 4, pp. 1273-1277 (2004) M. V. Jacob, J. Mazierska and J. Krupka, “Microwave characterization of (La,Sr)(Al,Ta)O3 using Hakki-Coleman Dielectric Resonator”, Transactions of the Materials Research Society of Japan, MRS-J vol. 29, No. 4, pp. 1093-1096 (2004). M. V. Jacob, J. G. Hartnett, V. Giordano, J. Krupka, J. Mazierska, and M. E. Tobar “ Temperature Dependence of Permittivity and Loss Tangent of Lithium Tantalate at Microwave Frequencies ”, IEEE Transaction on Microwave Theory and Techniques, vol. 52(2), pp. 536 – 541, (2004). M V. Jacob, J Mazierska and J Krupka, “ Cryogenic post dielectric resonator for precise microwave characterization of planar dielectric materials for superconducting circuits” Superconductor Science and Technology, vol. 17, pp. 358–362 (2004). J Krupka, J Mazierska and M V. Jacob “Recent advances in measurements of permittivity and dielectric losses at microwave frequencies” edited by Jaromír Pištora, Kamil Postava, Miroslav Hrabovský, Banmali S. Rawat . Proceedings of SPIE , vol. 5445, pp. 311-317, (2004). M V. Jacob , J Mazierska and J Krupka “Precise microwave characterization of lanthanum aluminate substrates with superconducting post dielectric resonator” Institute of Physics Conference Series: Vol. 181, pp. 2708 - 2715 ed. A Andreone et al, (2004). M. V. Jacob , J. Mazierska, A. Knack and S. Takeuchi, “ Miniaturized 10-Pole Superconducting Filter on MgO Substrate for Mobile Communications”, Proceedings on TENCON 2004, 21-24 Nov 2004, Thailand , pp. 554-557 (2004). M. V. Jacob , J. Mazierska and S. Takeuchi, Investigations On Microwave Characteristics of MgF 2 At Cryogenic Temperatures, Proceedings on TENCON 2004, 21-24 Nov 2004, Thailand, pp. 558-561 (2004). J. Mazierska, M. V. Jacob and J. Krupka, Precise Microwave Characterisation Of Materials For Emerging Technologies, Proceedings on Asia Pacific Microwave Conference 2004 New Delhi (15-18 Dec. 2004), APMC/04/I/656 (2004). M. V. Jacob , Low Temperature Microwave Characterisation of Lithium Fluoride, Proceedings on Asia Pacific Microwave Conference 2004 New Delhi (15-18 Dec. 2004) APMC/04/C/594 (2004). H. Piel, B. Aminov, H. Chaloupka, M. Getta, S. Kolesov, D. Wehler, J. Mazierska, M. Sinclair, A. Knack, M. V. Jacob , High Temperature Superconducting Elliptic Filters for UMTS Cryogenic Receiver, Proceedings on Asia Pacific Microwave Conference 2004 New Delhi (15-18 Dec. 2004) APMC/04/C/853 (2004). D Ledenyov, J Mazierska, G. Allen, and M Jacob , Lumped Element Modeling Of Nonlinear Properties of High Temperature Superconductors in a Dielectric Resonator MIKON, 15 th Int. Conference on Microwaves, Radar and Wireless Communications, Warsaw, May 17-19, 2004. J Mazierska, M V. Jacob , D Ledenyov, and J Krupka, Complex Permittivity Measurements at Variable Temperatures of Low Loss Dielectric Substrates Employing Split Post and Single Post Dielectric Resonators, IEEE MTT-S Int. Microwave Symposium Digest, pp. 1825-1828 (Fort Worth, June 6-11) 2004. 2003 M V. Jacob , J Mazierska, K Leong, D Ledenyov and J Krupka, “ Surface resistance measurements of HTS thin films using SrLaAlO 4 dielectric resonator ”, IEEE Transactions of Applied Superconductivity, Vol. 13(2), pp. 2909-2912 (2003). J Mazierska and M Jacob, “High temperature superconducting planar filters for wireless communication” accepted for publication in the book “ Novel Technologies For Microwave And Millimeter-Wave Applications” Edited by Prof.Jean-Fu Kiang, 2003. M V. Jacob , J Mazierska, D Ledenyov and J Krupka “ Microwave Characterisation of CaF 2 at cryogenic temperatures using Dielectric Resonator Technique ”, European Journal of Ceramic Society, Vol 23(14) pp. 2617-2622 (2003). J Mazierska, M V. Jacob , Andrew Harring, J Krupka, Peter Barnwell and Theresa Sims, “ Measurements of loss tangent and relative permittivity of LTCC ceramics at varying temperatures and frequencies ”, European Journal of Ceramic Society, Vol. 23(14), pp. 2611-2615, 2003. M V. Jacob and J Mazierska, “ Microwave characterisation of YBCO films on Sapphire and LaAlO 3 substrates ”, Journal Low Temperature Physics, vol. 131, pp. 647-651 (2003). M V. Jacob, J Mazierska and Michael Lorenz , “ Surface Resistance Measurements of Surface and Interface Sides of YBa 2 Cu 3 O 7 Films on Sapphire and LaAlO 3 ”, Superconductor Science and Technology, vol. 16, pp. 412-415 (2003). J Mazierska, J. McGrath, M V. Jacob , “Optimisation of hakki-coleman dielectric resonators for precise microwave characterisation of low loss low permittivity dielectrics” (APMC, November 4-7, 2003), Korea . M V. Jacob and J Mazierska, “Miniaturized Superconducting Filter for Mobile Communications”, TENCON 2003 (Oct. 14-17, 2003), Bangalore , pp. 631-634. M. V. Jacob , J. G. Hartnett, J. Mazierska, J. Krupka, and M. E. Tobar, “Lithium Tantalate – A High Permittivity Dielectric Material for Microwave Communication Systems” TENCON 2003, (Oct. 14-17, 2003), Bangalore, pp. 1362-1366. J. Mazierska, M. V. Jacob , T. F. Au Yeung Temperature Dependence of Relative Permittivity and Loss Tangent of Novel Transparent Substrate Material at Microwave Frequencies, Proceedings of Symposium F Electromagnetic Materials (ICMAT 2003) Singapore Dec. 7-11, 2003, pp. 224-227 (2003). M V. Jacob , J Mazierska, J Krupka, D Ledenyov and S Takeuchi “Microwave properties of Yttrium Vanadate crystals at cryogenic temperatures, Proceedings of Symposium F Electromagnetic Materials (ICMAT 2003) Singapore Dec. 7-11, 2003, pp. 232-235 (2003). M V. Jacob, J Mazierska and J Krupka, “Superconducting Post Dielectric Resonator for Accurate Microwave Characterization of Substrate Materials for HTS Circuits” (proceedings on International Superconductive Electronics Conference, Sydney 7 July – 11 July 2003. D Ledenyov, J Mazierska, Greg. Allen and M V. Jacob , “Simulations of nonlinear properties of HTS materials in a dielectric resonator using lumped element models” (proceedings on International Superconductive Electronics Conference, Sydney 7 July – 11 July 2003. 2002 M. Barra, A. Cassinese, M. Cirillo, M. V. Jacob , R. Russo and R. Vaglio, “ Miniaturized hairpin superconducting filters for telecommunication application ” J ournal Microwave and Optical technology letters, vol. 35(5), pp. 360-362 (2002). M V. Jacob, J Mazierska, Nick Savvides, Shigetoshi Ohshima and Shinichro Oikawa, “ Comparison of microwave properties of YBCO films on MgO and LaAlO 3 substrates ”, Physica C, vol. 372-376, pp. 474-477 (2002). M V. Jacob , J Mazierska, K. Leong and J. Krupka “ Microwave properties of low loss polymers at cryogenic temperature s”, IEEE Transactions of Microwave Theory and Techniques, Volume: 50, Issue: 2, pp. 474 –480 (2002). J Mazierska, Jonathon McGrath, M V. Jacob “Accuracy comparison of multifrequency and three frequencies computations of loss tangent and relative permittivity of low loss dielectric materials using the dielectric resonator ”, Proceedings on Asia Pacific Microwave Conference, Japan, (2002). K. Leong, J. Mazierska, M. V. Jacob , D. Ledenyov, S. Batt, “ Comparing Q-Factor of Dielectric Resonators Measured Using the Transmission Mode and Reflection Mode Methods Involving S-Parameter Circle Fitting ”, IEEE MTT-S Digest, Vol. 3, pp. 1665 -1668 (2002) J. Mazierska, M. V. Jacob , A. Harring and J. Krupka , Measurements of loss tangent and relative permittivity of LTCC ceramics at varying temperatures and frequencies, MMA'2002, York , August 31-September 1, 2002. M. V. Jacob , J. Mazierska, D. Ledneyov, and J. Krupka, Microwave characterisation of CaF2 at cryogenic temperatures using dielectric resonator technique”, MMA'2002, York , August 31-September 1, 2002. 2001 M. V. Jacob , J Mazierska, K. Leong and J. Krupka, “ Simplified method for measurements and calculations of coupling coefficients and Q o -factor of high temerature superconducting dielectric resonators ”, IEEE Transactions of Microwave Theory and Techniques”, vol. 49, No. 12, pp.2401-2407 (2001). M. V. Jacob , J Mazierska, K. Leong and J. Krupka, “ Novel Method for Calculation and Measurement of Unloaded Q-Factor of Superconducting Dielectric Resonators ”, IEEE MTT-S Digest, vol.3, pp. 1993 –1996, (2001). J. Mazierska and M V. Jacob , “ Progress in high temperature superconducting planar filters for wireless communication ” Proceedings of Asia Pacific Microwave Conference, Taipei, Taiwan, vol.3, pp. 1004 –1007 (2001).