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| Assistant Professor Electrical & Computer Engineering Morgan State University William Donald Schaefer Building 5200 Perring Parkway Baltimore, MD 21251 Phone: (443) 885-3915 B.S. University of Maryland, College Park 1983 |
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Gregory Wilkins
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| Description of Research | |||
| Multi-scale electromagnetic field problems consisting of small regions with highly confined fields or charges adjacent to larger open regions where the fields are more smoothly varying are under consideration in several areas. Active devices, consisting of thin doped layers adjacent to bulk material layers are used in current millimeter-wave systems that include sensors or communication functions. Similarly, guided-wave structures consisting of thin ferroelectric substrates are used for permittivity control in integrated circuit structures and in phase shifters for phased array applications. The models for these devices are typically non-linear and may involve the coupling of carrier transport and electromagnetic field equations or they require the ability to account for significant variation of material permittivity in fine regions. The means of solution involves using finite volume or finite element methods solved on grids that require multi-scale meshes over regions of the device or waveguide, and also with different scales between Boltzman's transport equations and Maxwell's equations. The current research examines the application of finite element techniques coupled with applications of an adaptive mesh refinement library for the generation and control of multi-scale meshes. | |||
| Recent Papers or Publications | |||
| G. C. Chinn, L. W. Epp, and G. M. Wilkins, "Determination of the Eigenfrequencies of a Ferrite-Filled Cylindrical Cavity Resonator using the Finite Element Method," IEEE Transactions on Microwave Theory and Techniques, vol. MTT-43, number 5, May 1995. G. M. WIlkins, M. Swaminathan, and J.-F. Lee, "Waveguide Mode Solution Using a Hybrid Edge-Element Approach," International Journal of Microwave and Millimeter-Wave Computer-Aided Engineering, vol. 5, number 2, March 1995. J.-F. Lee, G. M. Wilkins, and R. Mittra, "Finite-Element Analysis of Axisymmetric Cavity Resonators Using a Hybrid Edge-Element Technique," IEEE Transactions on Microwave Theory and Techniques, vol. MTT-41, number 11, November 1993. |
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| Special Honors or Awards | |||
| Tau Beta Pi Engineering Honor Society Eta Kappa Nu Electrical Engineering Honor Society The Institute of Electrical and Electronics Engineers (IEEE) American Society for Engineering Education (ASEE) National Society of Black Engineers (NSBE) University of Maryland Alumni Association National Alumni Schools Committee of the Johns Hopkins University University of Illinois Alumni Association NASA ASEE 1999 Summer Faculty Fellowship Program |
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