Refereed Journal Articles:

• M.C. Greenberg, K. L. Virga, and C. L. Hammond, “Dual Exponential Tapered Slot Antenna (DETSA) Characterstics,” accepted for publication in IEEE Transactions on Vehicular Technology.
• K. L. Virga, G. Aguirre, J. L Prince,“Methods to Reduce Radiation form Split Ground Planes in RF and Mixed Signal Packaging Structures,” accepted for publication in IEEE Transactions on Advanced Packaging.
• Guang Chen, Andrej Jancura, Kathleen L. Virga, Gert Winkler, and John L. Prince, “Accurate Frequency Domain Modeling of LTCC Solid-Gridded Plane Structures,” to appear in Microwave and Optical Technology Letters , March 5, 2003.
• K. L. Virga and M. L. Taylor, “Pattern Characteristics of Linear Arrays Employing the Constrained Least Squares Distribution,” to appear in IEEE Transactions on Antennas and Propagation, March 2003.
• D. Beauvarlet and K. L. Virga, “Measured Characteristics of 30GHz Indoor Propagation Channels with Low-Profile Directional Antennas,” IEEE Antennas and Wireless Propagation Letters, Vol. 1, pp. 87-90, 2002.
• K. L. Virga and M. L. Taylor, “Transmit Patterns for Linear Active Arrays With Peak Amplitude and Radiated Effective Voltage Constraints,”, IEEE Transactions on Antennas and Propagation, Vol. 49, Issue 5, pp. 732-739, May 2001.
• M. Elzinga, K. L. Virga, and J. L. Prince, “Improved Rational Approximation Macromodeling Algorithm for Networks Characterized by Frequency-Sampled Data,” IEEE Transactions on Microwave Theory and Techniques , Vol. 48, Issue 9, pp. 1461-1468, September 2000.
• M. Elzinga, K. L. Virga, L. Zhao and J. L. Prince, “Pole-Residue Formulation for Transient Simulation of High-Frequency Interconnects using Householder-LS Curve-fitting Techniques,” IEEE Transactions On Components, Packaging, & Manufacturing Technology, Part B: Advanced Packaging, Vol. 23, Issue 2, pp. 142-147, May 2000 .
• C. G. Green, J. M. Seligman, J. L. Prince, and K. L. Virga, “Electrical Characterization of Integrated Circuit Molding Compound,” IEEE Transactions On Components, Packaging, & Manufacturing Technology, Part B: Advanced Packaging, Vol. 22, Issue 3, pp. 337-342, August 1999.
• *K. L. Virga and Y. Rahmat-Samii, “Efficient Wideband Evaluation of Mobile Communications Antennas Using [Z] or [Y] Matrix Interpolation with the Method of Moments,” IEEE Transactions on Antennas and Propagation, Vol. 47, Issue 1, pp. 65-76, January 1999.
• H. Yue, K. L. Virga and J. L. Prince, “Dielectric Constant and Loss Tangent Measurement Using a Stripline Test Fixture,” IEEE Transactions On Components, Packaging, & Manufacturing Technology, Part B: Advanced Packaging, Volume 21, Issue 4, pp. 441-446, November 1998.
• *K. L. Virga and Y. Rahmat-Samii, “Low-Profile Enhanced-Bandwidth PIFA Antennas for Wireless Communications Packaging,” IEEE Transactions on Microwave Theory and Techniques, Vol. 45, Issue. 10, pp. 1879-1888, October 1997.
• *K. L. Virga and Y. Rahmat-Samii, “Generation of Wideband Antenna Performance by [Z] and [Y] Matrix Interpolation in the Method of Moments,” in Ultra-Wideband Short-Pulse Electromagnetics III , Editors C.E. Baum, L. Carin and A.P. Stone, Plenum Publishing, pp. 185-196, 1997.
• *K. L. Virga and Y. Rahmat-Samii, "RCS Characterization of a Finite Ground Plane with Perforated Apertures: Simulations and Measurements," IEEE Transactions on Antennas and Propagation, Vol. 42, Issue 11, pp. 1491-1501, November 1994.
• K. L. Virga, A. F. Seaton, and L. R. Walker, "New Waveguide Switched Patch Phase Shifter,” Applied Microwave and Wireless, pp. 109-116, 1990.

Conference Presentations:

• K. L. Virga, C. Hammond, D. Beauvarlet, and W. E. Ryan, “Indoor Propagation Measurements Using Low Profile and Directional Dual Exponentially Tapered Slot Antennas, ” IEEE 5th International Symposium on Wireless Personal Multimedia Communications, pp. 193-197, October 2002.
• Invited Paper, C. Hammond, R. Ciano, and K. L. Virga, “Modeling and Surface Current Visualization of Dual Exponentially Tapered Slot Antennas with Dielectrics,” 2002 USNC-URSI Meeting Digest, page 179, June 2002. Invited for Special Session on Integration of Antennas for RF/Wireless Packages.
• D. Beauvarlet and K. L. Virga, “Indoor Propagation Characteristics for Wireless Communications in the 30GHz Range,” 2002 IEEE International Symposium on Antennas and Propagation Digest, pp. 244-248, June 2002.
• Prof. Dr. Ing. habil. Gert Winkler, Dr. Kathleen L. Virga and Dr. John L. Prince, “An International Cooperative Program in LTCC Fabrication, Characterization, and Simulation,” submitted for publication 5th International Academic Conference on Electronic Packaging Education and Training 4 pp. March 2002, Dresden, Germany.
• A. Jancura, G. Chen, G. Winkler, J. L. Prince, and K. L. Virga, “Frequency and Time Domain Behavior of Solid and Gridded Reference Power/Ground Planes in LTCC Modules,” Proceedings of the 52nd Electronics Components and Technology Conference, pp. 52-56, May 2002.
• C. Hammond, K. L. Virga, and J. L. Prince, " Interfacing Measured S-Parameter Interconnect Data with Global Rational Based Macromodels,” IEEE Workshop on Signal Propagation on Interconnects, Extended Abstract, Paper 1.2, Venice, Italy, May 2001.
• K. L. Virga and D. Beauvarlet, “ The Effects of the Element Factor on Low Sidelobe Circular Arc Array Performance,” 2001 IEEE International Symposium on Antennas and Propagation Digest, pp. 1206-1209, July 2000.
• K. L. Virga and H. Zhang, “Spatial Beamformer Weighting Sets for Circular Array STAP,” IEEE International Conference on Phased Array Systems and Technology, pp. 561-564, May 2000.
• C. L. Hammond and K. L. Virga, "Network Analyzer Calibration Methods for High-Density Packaging Characterization and Validation of Simulation Models," Proceedings of the 50th Electronics Components and Technology Conference, pp. 519-525, June 2000.
• G. W. Peterson, J. L. Prince, and K. L. Virga, "Investigation of Power/Ground Plane Resonance Reduction Using Lumped RC Elements," Proceedings of the 50th Electronics Components and Technology Conference, pp. 769-774, June 2000.
• T. Moran, K. L. Virga, G. Aquirre, and J. L. Prince, "Methods to Reduce Radiation from Split Ground Plane Structures, " IEEE 8th Topical Meeting on Electrical Performance of Electronic Packaging Digest, pp. 203-206, October 1999.
• M. Elzinga, K. L. Virga, and J. L. Prince, "Improved Global Rational Approximation Macromodeling Algorithm for Transient Simulation of Interconnects" IEEE 8th Topical Meeting on Electrical Performance of Electronic Packaging Digest, pp. 85-88, October 1999.
• Invited Paper: T. E. Moran, K. L. Virga, G. Aguirre, and J. L. Prince, “Investigation of Radiation from Split Ground Plane Structures Utilizing S-Parameters and The Finite-Difference Time-Domain Methods, “ presented at IMAPS Next Generation IC Package and Design Automation Workshop, July 1999.
• M. C. Greenberg and K. L. Virga, “Characterization and Design Methodology for the Dual Exponentially Tapered Slot Antenna” 1999 IEEE International Symposium on Antennas and Propagation Digest, pp. 88-91, July 1999.
• Invited Paper M. L. Taylor, K. L. Virga, and R. G. Yaccarino, “Comparison of Antenna Transmit Weighting Functions for Active Arrays,” 1999 IEEE International Symposium on Antennas and Propagation Digest, pp. 2302-2305, July 1999, Invited for Special Session in Honor of T. T. Taylor.
• Invited Paper, K. L. Virga, “Pattern Synthesis of Arc Antenna Arrays with Directional Elements,” 1999 USNC-URSI Meeting Digest page 348, July 1999. Invited for Special Session on Conformal Antennas.
• M. Elzinga, K. L. Virga, L. Zhao and J. L. Prince, “Pole-Residue Formulation for Transient Simulation of High-Speed Interconnects using Householder-LS Curve-fitting Techniques,” 1999 Electronics Components and Technology Proceedings Digest, pp. 500-505, May 1999.
• S. L. Dvorak, K. Virga, R. W. Ziolkowski, and D. G. Dudley, “Use of Microwave Laboratory Demonstrations at the University of Arizona,” 1999 USNC/URSI National Radio Science Meeting, page 120, January 1999.
• C. Green, J. M. Seligman, J. L. Prince, and K. L. Virga, “Characterization of Frequency Dependent Dielectric Packaging Media Using Differential and Multiple-Reflection Techniques on a Precision Stripline Test Structure,” IEEE 7th Topical Meeting on Electrical Performance of Electronic Packaging Digest, West Point, New York, pp. 69-72, October 1998.
• M. C. Greenberg and K. L. Virga, “Characterization of Bunny-Ear Antennas for Wireless Basestation Applications,” 1998 IEEE Radio and Wireless Conference Digest, pp. 87-90, August 1998.
• C. W. Brann and K. L. Virga, “Generation of Optimal Distribution Sets for Single-Ring Cylindrical Arc Arrays”, 1998 IEEE International Symposium on Antennas and Propagation Digest, pp. 732-735, June 1998.
• H. Yue, K. L. Virga, and J. L. Prince, “Dielectric Constant and Loss Tangent Measurement Using a Stripline Test Fixture,” 1998 Electronics Components and Technology Proceedings Digest, pp. 1077-1082, May 1998.
• K. L. Virga and Y. Rahmat-Samii, “Transient Characteristics of Antennas for Wireless Communications Systems,” 1997 USNC- URSI Meeting Digest, page 222, July 1997.
• K. L. Virga and Y. Rahmat-Samii, “Low-Profile Integrated Antennas for Mobile Radio Communications,” IEEE 5th Topical Meeting on Electrical Performance of Electronic Packaging Digest, pp. 176-178, October 1996.
• K. L. Virga and Y. Rahmat-Samii, “Comparison of [Z] Matrix Interpolation and [Y] Matrix Interpolation in the Method of Moments,” 1996 USNC-URSI Radio Science Meeting Digest, page 346, July 1996.
• S. Gedney, F. Lansing, R. T. Kihm, N. Owona, and K. Virga, “Simulating Large Circuits with the Parallel Generalized Yee Algorithm,” 1996 IEEE Microwave Theory and Techniques Society International Microwave Symposium Digest, pp. 1011-1014, June 1996.
• K. L. Virga and Y. Rahmat-Samii, “Wide Band Evaluation of Communications Antennas Using [Z] Matrix Interpolation with the Method of Moments,” 1995 IEEE Antennas and Propagation Society International Symposium Digest, pp. 1262-1265, June 1995.
• K. L. Virga and Y. Rahmat-Samii, “An Enhanced Bandwidth Integrated Dual L Antenna for Mobile Communications Systems -- Design and Measurement,” 1995 IEEE Antennas and Propagation Society International Symposium Digest, pp. 1120-1123, June 1995.
• Y. Rahmat-Samii, K. Virga, R. Hodges, M. Jensen, “Planar Inverted F Antenna (PIFA) Characterization and Performance Visualization,” 1995 USNC-URSI National Radio Science Meeting Digest, one page, January 1995.
• K. L. Virga and L. R. Walker, "Efficient Antenna Mode Scattering Analysis Using Design of Experiments," 1994 HAVE Forum Digest, United States Air Force, Colorado Springs, CO, October 1994.
• K. L. Virga and Y. Rahmat-Samii, "Surface Currents on Conducting Plates with Multiple Apertures," 1994 IEEE Antennas and Propagation Society International Symposium Digest, pp. 684-687, June 1994.
• K. L. Virga and Y. Rahmat-Samii, "Computation of Monostatic RCS and Surface Currents for a Flat Plate with Perforated Apertures," 1994 USNC-URSI National Radio Science Meeting Digest, page 9, January 1994.
• K. L. Virga and Y. Rahmat-Samii, "RCS Characterization of Perforated Apertures in a Finite Ground Plane," 1993 IEEE Antennas and Propagation Society International Symposium Digest, pp. 1416-1419, June 1993.
• K. L. Virga and R. E. Engelhardt, "Efficient Statistical Analysis of Microwave Circuit Performance Using the Design of Experiments," 1993 IEEE Microwave Theory and Techniques Society International Microwave Symposium Digest, pp. 123-126, May 1993.
• K. L. Virga, A. F. Seaton, and L. R. Walker "A Waveguide Switched Susceptance (Diode Patch) Phase Shifter," 1989 IEEE Microwave Theory and Techniques Society International Microwave Symposium Digest, pp.123-126, May 1989.



Main Page