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    Hjalti Sigmarsson -Assistant Professor, Oklahoma University

    Education

    BSECE - University of Iceland , 2003
    MSECE - Purdue University, 2005
    Ph.D. - Purdue University, 2010

    Research

    Tunable filter design and fabrication for application on a very wideband, high performance receiver.

    Stereolithography using both polymers and ceramics. 3D system integration. Microwave component design for selective laser sintering.

     

    Publications

     
    Journal Papers
    [1] E. Kinzel, X, Xu, H. H. Sigmarsson, and W. Chappell, "Laser Sintering of Thick-film Conductors for Microelectronic Applications," J. Appl. Phys. 101, 063106 (2007).
    [2] T. Choi, H. Sharifi, H. H. Sigmarsson, W. J. Chappell, S. Mohammadi, and L. P. B. Katehi, "3-D Integration of 10-GHz Filter and CMOS Receiver Front- End," Microwave Theory and Techniques, IEEE Transactions on, vol. 55, no. 11, pp. 2298-2305, Nov. 2007.
    [3] S. Moon, H. H. Sigmarsson, Y. Huang, T. Brummer, S. K. Khanna, and W. Chappell, “Magnetically Aligned Anisotropic Conductive Adhesive for Microwave Applications”, Microwave Theory and Techniques, IEEE Transactions on, vol. 56, no. 12, pp. 2942-2949, Dec. 2008.
    [4] H. Joshi, H. H. Sigmarsson, S. Moon, D. Peroulis, and W. J. Chappell, “High Q Fully Reconfigurable Tunable Band Pass Filters,” IEEE Transactions on Microwave Theory and Techniques, vol. 57, no. 12, pp. 3525-3533, Dec. 2009.
    [5] S. Moon, H. H. Sigmarsson, H. Joshi, and W. J. Chappell, “Substrate Integrated Evanescent-Mode Cavity Filter With a 3.5 to 1 Tuning Ratio,” IEEE Microwave and Wireless Components Letters, vol. 20, no. 8, pp. 450-452, Aug. 2010.
    [6] J. Lee, E. J. Naglich, H. H. Sigmarsson, D. Peroulis, and W. J. Chappell, “Tunable Inter-Resonator Coupling Structure with Positive and Negative Values and Its Application to the Field-Programmable Filter Array (FPFA),” IEEE Transactions on Microwave Theory and Techniques, vol. 59, no. 12, pp. 3389 - 3400, Dec. 2011.
    [7] J. Lee, E. J. Naglich, H. H. Sigmarsson, D. Peroulis, and W. J. Chappell, "New Bandstop Filter Circuit Topology and its Application to Design of a Bandstop-to-Bandpass Switchable Filter," IEEE Trans. Microwave Theory and Techniques, vol. 61, no. 3, pp. 1114-1123, March 2013.
    [8] E. J. Naglich, J. Lee, H. H. Sigmarsson, D. Peroulis, and W. J. Chappell, "Intersecting Parallel Plate Waveguide Loaded Cavities for Dual-Mode and Dual-Band Filters," IEEE Trans. Microwave Theory and Techniques, accepted for publication.
    Conference Papers

    [1] H. Sigmarsson, E. Kinzel, W. Chappell, and X. Xu, "Selective Laser Sintering of Patch Antennas on FR4" Proceedings of IEEE International Symposium on Antennas and Propagation, Washington DC, USA, 2005.

    [2] E. Kinzel, H. Sigmarsson, X. Xu, and W. Chappell, "Selective Laser Sintering of Microwave Components" Proceedings of European Microwave Conference (EuMC), Paris, France, 2005, pp. 289-292.

    [3] H. Sigmarsson, E. Kinzel, W. Chappell, and X. Xu, "Thick Film Metallization in Ambient Air Using Selective Laser Sintering" Proceedings of International Symposium on Microelectronics, International Microelectronics and Packaging Society (IMAPS), Philadelphia, USA, 2005, pp. 691-699.

    [4] E. Kinzel, X, Xu, H. H. Sigmarsson, and W. J. Chappell, “Heat Transfer in Laser Sintering of Thick-Film Microelectronics,” ASME Conf. Proc. 2005, Orlando, Nov. 2005, pp. 895-901.
    [5] H. Sigmarsson, E. Kinzel, W. Chappell, and X, Xu, "Selective Laser Sintering of Multilayer, Multimaterial Circuit Components," IEEE MTT-S International Microwave Symposium Digest, June 2006, pp. 1788-1791.
    [6] H. Joshi, H. H. Sigmarsson, D. Peroulis, and W. Chappell, "Highly Loaded Evanescent Cavities for Widely Tunable High-Q Filters" IEEE MTT-S International Microwave Symposium Digest, June 2007, pp. 2133-2136.
    [7] A. Mahmood, H. H. Sigmarsson, H. Joshi, W. Chappell, and D. Peroulis, "An Evanescent-mode Cavity Resonator Based Thermal Sensor," Sensors, 2007 IEEE , vol., no., pp.950-953, 28-31 Oct. 2007.
    [8] H. H. Sigmarsson, H. Joshi, D. Peroulis, and W. Chappell, "3-6 GHz Tunable Bandpass Filter using Heavily Loaded Evanescent-mode Cavity Resonators and Piezoelectric Actuators" Proceedings of International Symposium on Microelectronics, International Microelectronics and Packaging Society (IMAPS), Providence, USA, 2008, pp. 360-366.
    [9] H. Joshi, H. H. Sigmarsson, and W. J. Chappell, "Analytical Modeling of Highly Loaded Evanescent-Mode Cavity Resonators for Widely Tunable High-Q Filter Applications," Proceedings of Union Radio Scientifique Internationale (URSI), Chicago, USA, no. D09.6, Aug. 2008.
    [10] H. Joshi, H. H. Sigmarsson, S. Moon, D. Peroulis, and W. J. Chappell, "High Q Narrowband Tunable Filters With Controllable Bandwidth," IEEE MTT-S International Microwave Symposium Digest, June 2009, pp. 629-632.
    [11] H. Joshi, H. H. Sigmarsson, S. Moon, D. Peroulis, and W. J Chappell, "Tunable High Q Narrow-Band Triplexer IEEE MTT-S International Microwave Symposium Digest, June 2009, pp. 1477-1480.
    [12] H. H. Sigmarsson, A. Christianson, H. Joshi, S. Moon, D. Peroulis, and W.J Chappell, "In-Situ Control of Tunable Evanescent-Mode Cavity Filters Using Differential Mode Monitoring," IEEE MTT-S International Microwave Symposium Digest, June 2009, pp. 633-636.
    [13] H. H. Sigmarsson, H. Joshi, S. Moon, D. Peroulis, and W. J. Chappell, “Substrate Integration of Widely Tunable Bandpass Filters,” Proceedings of International Symposium on Microelectronics, International Microelectronics and Packaging Society (IMAPS), San Jose, USA, 2009, pp. 711-716.
    [14] H. H. Sigmarsson, J. Lee, D. Peroulis, and W. J. Chappell, “Reconfigurable-Order Bandpass Filter for Frequency Agile Systems,” IEEE MTT-S International Microwave Symposium Digest, May 2010, pp. 1756-1759.
    [15] H. H. Sigmarsson, E. Binkerd, J. Maas, J. Lee, D. Peroulis, and W. J. Chappell, “Practical Implementation of Frequency Monitoring for Widely Tunable Bandpass Filters,” Proceedings of International Symposium on Microelectronics, International Microelectronics and Packaging Society (IMAPS), Raleigh, USA, 2010, pp. 874-880.
    [16] E. J. Naglich, H. H. Sigmarsson, and W. J. Chappell, “Widely Tunable X-band Bandstop Resonator with Tunable External Coupling,” URSI National Radio Science Meeting, Boulder, CO, 5-8 January 2011, pp. B2-2.
    [17] J. Lee, E. J. Naglich, H. H. Sigmarsson, D. Peroulis, and W. J. Chappell, “Frequency-Agile Field-Programmable Filter Array (FPFA) with Multiple Functionalities,” IEEE MTT-S International Microwave Symposium Digest, June 2011.
    [18] K. Chen, H. H. Sigmarsson, W. J. Chappell, and D. Peroulis, "Power Handling of High-Q
    Evanescent-Mode Tunable Filter with Integrated Piezoelectric Actuators," IEEE MTT-S Inter-
    national Microwave Symposium Digest, June 2012, Accepted for publication.
    [19] H. H. Sigmarsson, E. J. Naglich, J. Lee, D. Peroulis, and W. J. Chappell, "Tunable Bandpass
    and Bandstop Filter Cascade for Dynamic Pole Allocation,"2012 IEEE Ant. and Prop. Society Int. Symp. (APSURSI), pp.1-2, 8-14 July 2012.
     

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