Publications

Books

J.L. Volakis, A. Chatterjee, and L.C. Kempel, Finite Element Method for Electromagnetics, IEEE Press, 1998.

Refereed Journal Papers

H. How, P. Shi, C. Vittoria, E. Hokanson, M.N. Champion, L.C. Kempel, and K.D. Trott, "Steerable phased array antennas using single-crystal YIG phase shifters -- Theory and experiment," IEEE Trans. Microwave Theory Tech.,48, pp. 1544-1549, 2000.
A.D. Brown, J.L. Volakis, L.C. Kempel, and Y.Y Botros, "Patch antennas on ferromagnetic substrates," IEEE Trans. Antennas Propagat.,47, pp. 26-32, 1999.
A. Chatterjee, J.L. Volakis, and L.C. Kempel, "Optimization issues in finite element codes for solving open domain 3D electromagnetics scattering and conformal antenna problems," Intl. J. Numerical Modeling: Elec. Networks, Devices and Fields,9, pp. 335-344, 1996.
L.C. Kempel, J.L. Volakis, and R.J. Sliva, "Radiation by cavity-backed antennas on circular cylinder," IEE Proc.-Microw. Antennas Propag.,142, pp. 233-239, June 1995.
J.L. Volakis and L.C. Kempel, "Electromagnetics: Computational methods and considerations," IEEE Comp. Sci. Engineering Mag.,2,pp. 42-57, 1995.
L.C. Kempel and J.L. Volakis, "Scattering by cavity-backed antennas on a circular cylinder," IEEE Trans. Antennas Propagat.,42,pp. 1268-1279, Sept. 1994.
J.L. Volakis, A. Chatterjee, J. Gong, L.C. Kempel, and D. Ross, "Progress on the application of the finite element metod to 3D electromagnetic scattering and radiation," COMPEL, 13,Suppl. A., pp. 359-364, May 1994.
J.L. Volakis, A. Chatterjee, and L.C. Kempel, "A review fo the finite element method for three-dimensional electromagnetic scattering," J. Optical Soc. of America-A, pp. 1422-1433, Apr. 1994.
L.C. Kempel and T.B.A. Senior, "Scattering by a small cavity-backed hole," IEEE Trans. Antennas Propagat.,41,pp. 1115-1121, Aug. 1993.
L.C. Kempel and J.L. Volakis, "TM scattering by a metallic half plane with a resistive sheet extension," IEEE Trans. Antennas Propagat.,41,pp. 910-917, Jul. 1993.
L.C. Kempel, J.L. Volakis, T.B.A. Senior, S.S. Locus, and K.M. Mitzner, "Scattering by S-shaped surfaces," IEEE Trans. Antennas Propagat.,41,pp. 701-708, Jun. 1993.
L.C. Kempel, J.L. Volakis, and T.B.A. Senior, "TM diffraction from tapered resistive junction," Radio Science, 28, pp. 129-138, Mar-Apr 1993.

Refereed Conference Papers

J. Meese and L.C. Kempel, "A dissimilar mesh formulation for the finite element-boundary integral method," 17th Review of Progress in Applied Computational Electromagnetics, Monterey, CA, March 2001.
C. Macon and L.C. Kempel, "Hybrid finite element-boundary integral method for conformal antennas on prolate spheroids: Preliminary results," 17th Review of Progress in Applied Computational Electromagnetics, Monterey, CA, March 2001.
J. Gulick and L.C. Kempel, "Analysis of numerically solving integral equations using Rao-Wilton-Glisson and asymptotic phase basis functions concurrently," 2001 URSI/USNC National Radio Science Meeting , Boulder, CO, January 2001.
A. Brown, L. Kempel, and J. Volakis, "Phase characterization of ferromagnetic materials using a coplanar waveguide," 2000 IEEE Antennas Propagat. Society Symp. , Salt Lake City, UT, July 2000.
C. Macon. L. Kempel, K. Trott, and S. Schneider, "Conformal wide bandwidth antennas on circular cylinders," 2000 URSI Radio Science Meeting, Salt Lake City, UT, July 2000.
C-W Wu, L. Kempel, and E. Rothwell, "Mutual coupling between antennas on an elliptic cylinder," 2000 URSI Radio Science Meeting, Salt Lake City, UT, July 2000.
M.E. Kowalski, B. Singh, K.D. Trott, L.C. Kempel, and J.M. Jin, "On the integral equation-asymptotic phase (IE-AP) method for three-dimensional scattering," Progress in Electromagnetics Reseach Symposium, Boston, MA, July 2000.
L.C. Kempel and G. Bao, "Least squares finite element method," Progress in Electromagnetics Reseach Symposium, Boston, MA, July 2000.
L.C. Kempel and S. Schneider, "Hybrid Finite Element Methods for Conformal Antenna Design," 5th Finite Elements Workshop for Microwave Engineering, Boston, MA, June 2000.
C. Macon. L. Kempel, K. Trott, and S. Schneider, "Conformal multi-modal antennas on cylinders," Millenium Conference on Antennas and Propagation, Davos, Switzerland, April 2000.
C. Macon, L.C. Kempel, K. Trott, and S. Schneider, "Curvature effects on a conformal log-periodic antenna," 16th Review of Progress in Applied Computational Electromagnetics, Monterey, CA, March 2000.
L.C. Kempel, P. Rummel, T. Grotjohn, and J. Amrhein, "Finite element method for designing plasma reactors," 16th Review of Progress in Applied Computational Electromagnetics, Monterey, CA, March 2000.
K.D. Trott, R. D. Guidry, L.C. Kempel, "Modeling and analysis of wideband conformal antennas," 16th Review of Progress in Applied Computational Electromagnetics, Monterey, CA, March 2000.
H.How, C. Vittoria, L.C. Kempel, and K.D. Trott, "Single-crystal YIG phase shifter at X-band,"44th Conference on Magnatism and Magnetic Materials, San Jose, CA, Nov. 1999.
H.How, C. Vittoria, M.H. Champion,L.C. Kempel, and K.D. Trott, "X-band phased array antennas using crystal YIG phase shifters," 44th Conference on Magnatism and Magnetic Materials, San Jose, CA, Nov. 1999.
A. Brown, L. Kempel, and K. Trott, "Compact integrated coplanar phase shifter/antenna array," 1999 IEEE Antennas Propagat. Society Symp. , Orlando, FL, July 1999.
L.C. Kempel, "Advances in modeling conformal antennas on cylinders," 1999 URSI Radio Science Meeting, Orlando, FL, July 1999.
L.C. Kempel, "Implementation of Various Hybrid Finite Element-Boundary Integral Methods: Bricks, Prisms, and Tets,"1999 ACES Meeting, Monterey, CA, pp. 242-249, 1999.
K.D. Trott and R.D. Guidry (presented by L.C. Kempel), "Modeling wideband conformal antennas using finite element-boundary integral techniques," 1999 ACES Meeting, Monterey, CA, pp. 226-231, 1999.
L.C. Kempel and K. Trott, "Progress in modeling complex conformal antennas using the finite element-boundary integral method,"1998 URSI Radio Science Meeting, Atlanta, GA, June 1998.
L.C. Kempel, "On the use of decoupled meshes in the analysis of printed antennas," 1997 URSI Radio Science Meeting, Montreal, QUE., CANADA, p. 182, Jul. 1997.
T. Ozdemir, J. Volakis, J. Berrie, and L. Kempel, "Finite element analysis of freqency independent antennas," 1996 URSI Radio Science Meeting, Balitimore, MD, p. 152, 1996.
E. Kipp, S.W. Lee, T. Ozdemir, J.L. Volakis, L. Kempel, and J. Berrie, "Antenna pattern evaluations using a hybridization fo the finite element and high frequency methods," 1995 URSI Radio Science Meeting, Newport Beach, CA, p. 183, June 1995.
L.C. Kempel and J.T. Aberle, "Scattering and radiation by conformal microstrip antennas with dielectric overlay," 1995 URSI Radio Science Meeting, Newport Beach, CA, p. 36, June 1995.
L.C. Kempel, S. Bindiganavale, and J.L. Volakis, "Evaluation of new vector ABCs for conformal printed antennas," 1994 IEEE Antennas and Propagat. Society Symp., Seattle, WA, June 1994.
L.C. Kempel and J.L. Volakis, "Radiation by patch antennas on a circular cylinder using the FE-BI method," 1994 IEEE Antennas and Propagat. Society Symp., Seattle, WA, June 1994.
L.C. Kempel and J.L. Volakis, "Scattering by cavity-backed antennas on a circular cylinder using the FE-BI method," 1994 IEEE Antennas and Propagat. Society Symp., Seattle, WA, June 1994.
J. Gong, L.C. Kempel, and J.L. Volakis, "Computer codes for the analysis of planar and cylindrically conformal printed antennas," 1994 ACES Conference, Monterey, CA, pp. 203-209.
J.L. Volakis, L.C. Kempel,a nd J. Gong, "Hybrid finite element-integral equation methods for conformal antenna characterizations," 1993 Progress in Electromagnetics Reseach Symp., Pasadena, CA, p. 41.
L.C. Kempel and J.L. Volakis, "TM scattering by a metallic half plane with a resistive sheet extension," 1993 IEEE Antennas and Propagat. Society Symp., Ann Arboor, MI, June 1993.
L.C. Kempel and J.L. Volakis, "A finite element-boundary integral method for cavities in a circular cylinder" 1993 IEEE Antennas and Propagat. Society Symp., Ann Arboor, MI, June 1993.
L.C. Kempel and T.B.A. Senior, "Scattering by a small cavity-backed hole," 1993 URSI.USNC National Radio Science Meeting, Boulder, CO, Jan. 1993.
K.M. Mitzner, J.L. Volakis, J.M. Jin, L.C. Kempel, and D. Ross, "An integral equation in terms of charge for TE scattering by curved open surfaces," 1992 URSI Radio Science Meeting, Chicago, IL, p. 85.
L.C. Kempel, J.L. Volakis, and T.B.A. Senior, "TM diffraction from tapered resistive junctions," 1992 IEEE Antennas and Propagat. Society Symp., Chicago, IL, 1992.
L.C. Kempel, J.L. Volakis, T.B.A. Senior, and S.S. Locus, "Scattering by S-shaped surfaces," 1991 IEEE Antennas and Propagat. Society Symp., London, ONT, CANADA, 1991.

Invited Lectures at Universities

L.C. Kempel, "Three-Dimensional Finite Element-Boundary Integral Method: A Challenge," Michigan State University Applied Mathematics Seminar Series, East Lansing, MI, Sept. 27, 1999.
L.C. Kempel, "Finite Element Analysis for Plasma Reactors," University of Illinois at Urbana-Champagne, Feb. 29, 2000.
L.C. Kempel, "Finite Element Boundary Integral Method Using Dissimilar Meshes," Air Force Institute of Technology Distinquished Lecture Series, Wright-Patterson AFB, OH, Sept. 26, 2000.
L.C. Kempel, "Collaborative Research: The Future," Penn State University, Apr. 24, 2001.

Invited Lectures at Companies

L.C. Kempel, "Conformal Antenna Research at MSU," Fuba,Flint, MI, March 2, 2001.
L.C. Kempel, "Overview of Electromagnetic Shielding," The Dow Chemical Company, Midland, MI, March 9, 2001.

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