research_areas

Electrically Small Antennas. Samples of our pubilcations in this area:

C. Thajudeen and A. Hoorfar, “Pin Diode Reconfigurable Wideband Peano Top-Loaded Monopoles,” IEEE International Symposium on Antennas and Propagation, Charleston, SC, June 2009.
Christopher Thajudeen, and Ahmad Hoorfar, ‘Electrically Small Top-loaded Monopoles Utilizing Space Filling Curves: Concept, Design and Experiment,” 2009 Progress In Electromagnetics Research Symposium (PIERS), Beijing, China, March 2009.
R. Caverly and A. Hoorfar, “Reconfigurable Hilbert Antennas Using High Speed PIN Diodes, “ 2009 IEEE Radio and Wireless Symposium, San Diego, CA, Januray 2009
J. McVay, C. Thajudeen and A. Hoorfar “Stacked Peano Curve Top-Loaded Monopoles for Wide-Band Performance,” 2008 General Assembley of URSI Chicago, IL, August 2008.
J. McVay and A. Hoorfar “Miniaturization Of Top-Loaded Monopole Antennas Using Peano-Curves,” IEEE Radio and Wireless Symposium, Long Beach, CA, January 2007.
J. McVay, A. Hoorfar, N. Engheta, “An overview of space-filling curves in novel antenna design: Theory, Simulations, and Experiments,” 2007 Electromagnetic Theory Symposium, Ottawa, Canada, July 2007.
H. Huang and A. Hoorfar, “Miniaturization of Dual-Band Planar Inverted-F Antennas Using Peano-Curve Elements,” 2006 International Symposium on Antennas and Propagation, Singapore, November 2006.
J. McVay, A. Hoorfar "A Miniaturized Planar Space-filling Curve Antenna with Wideband Monopole-like Radiation Characteristics," 2006 IEEE International Symposium on Antennas and Propagation, Albuquerque, NM, July 2006.
J. Zhu, A. Hoorfar and N. Engheta “Peano Antennas,” IEEE Antennas and Wireless Propagation Letters. IEEE Antennas and Wireless Propagation Letters, Vol. 3, PP. 71-74, December 2004.
J. Zhu, A. Hoorfar and N. Engheta “Bandwidth, cross polarization, and feed-point characteristics of matched Hilbert antennas,” IEEE Antennas and Wave Propagation Letters; Vol. 2, pp. 2-5, December 2004.
J. McVay, A. Hoorfar "A Miniaturized Planar Space-filling Curve Antenna with Wideband Monopole-like Radiation Characteristics," Proceedings of the 2006 IEEE International Symposium on Antennas and Propagation, Albuquerque, NM, July 2006.
J. McVay, A. Hoorfar and N. Engheta, "Space-Filling Curve Antennas above Space-Filling Curve High Impedance Ground-Planes," Proceedings of the 2006 IEEE International Symposium on Antennas and Propagation, Albuquerque, NM, July 2006.
J. Zhu, A. Hoorfar, N. Engheta and F. Plonski, "Miniaturized Antennas for Low Frequency Applications", Proceedings of Intelligent Ship Symposium, Villanova, PA, June 2005.
J. McVay, A. Hoorfar and N. Engheta, "Applications of Hilbert Artificial Magnetic Conductor Ground Planes to Performance Enhancement of Electrically Small Antennas," in Proceedings of the 2003 IEEE Sarnoff Symposium, pp. 297-300, the College of New Jersey, March, 2003.
J. Zhu, A. Hoorfar and N. Engheta, "Feed-point Effects in Hilbert-Curve Antennas," Digest of the 2002 IEEE Antennas and Propagation Society (AP-S) International Symposium and USNC/URSI National Radio Science Meeting, San Antonio, Texas. pp. 373, June 2002.
J. Zhu, A. Hoorfar and N. Engheta. "Investigation of the Performance of Hilbert-curve Antenna with Off-center Feed," Proceedings of the 2002 IEEE Sarnoff Symposium on Advances in Wired and Wireless Communications, Ewing, NJ, pp. 138-141, March 2002.
A. Hoorfar and A. Perrotta, “An Experimental Study of Microstrip Antennas on Very High Permittivity Substrate and Very Small Ground-Planes, “IEEE Transactions on Antennas and Propagation , pp. 838-840, April 2001.
A. Hoorfar and A. Perrotta, “Miniaturized microstrip antennas with enhanced bandwidth on very high permittivity substrate", Proceedings of the 1997 IEEE International Wireless and Telecommunications Symposiums, Shah Alam, Malaysia, pp. 225-229, May 1997.

Metamaterials, Artificial Magnetic Conductors and Exotic surfaces. Samples of our pubilcations in this area:

J. McVay, A. Hoorfar and N. Engheta, "Thin Absorbers Using Space-Filling-Curve Artificial Magnetic Conducting Surfaces," Microwave and Optical Technology Letters, Volume 51 Issue 3, Pages 785 – 790, March 2009.
J. McVay, V. Pierro, V. Galdi, A. Hoorfar, N. Engheta, “Dual-Polarized High-Impedance Ground Planes Based on Grid-Graph Hamiltonian Path,” 2007 URSI Meeting, Ottawa, Canada, July 2007.
. McVay, A. Hoorfar and N. Engheta, “Extraction of Effective Permittivity and Permeability of Dispersive Double-Negative Slabs using Evolutionary Programming,” IEEE International Symposium on Antennas and Propagation, Honolulu, HI, June 2007.
J. McVay, N. Engheta, and A. Hoorfar “Space-Filling-Curve High-Impedance Ground Planes,” Chapter 14 in Metamaterials: Physics and Engineering Explorations, Wiley-IEEE Press Publications, 2006.
J. McVay, N. Engheta and A. Hoorfar, “Three-Dimensional Hilbert Space-Filling-Curve Plasmonics,” 2006 IEEE International Symposium on Antennas and Propagation, Albuquerque, NM, July 2006.
J. McVay, N. Engheta and A. Hoorfar, “Three-dimensional Hilbert structures as compact resonant plasmonic elements in laterally-confined transmission lines at microwave frequencies,” International Congress on Advanced Electromagnetic Materials in Microwaves and Optics (Metamaterials, 2007), Rome, Italy, October 2007
McVay, N. Engheta and A. Hoorfar, “Numerical Study and Parameter Estimation for Double-Negative Metamaterials with Hilbert-Curve Inclusions,” Proceedings of the 2005 IEEE International Symposium on Antennas and Propagation, Washington D.C., July 2005.
N. Engheta and A. Hoorfar and J. McVay, “Electrodynamics of Space-Filing Curves,” Proceedings of the International Conference on Electromagnetics in Advanced Applications, Turin, Italy, September 2005.
J. McVay, A. Hoorfar and N. Engheta, “Peano High Impedance Surfaces,” Radio Science, Vol. 40, pp. 1-9, September 2005.
J. McVay, N. Engheta, and A. Hoorfar, “High Impedance Metamaterial Surfaces Using Hilbert-Curve Inclusions,” IEEE Microwave and Wireless Components Letters, Vol. 14, NO. 3, March 2004.
V. Pierro, J. McVay, V. Galdi, A. Hoorfar, N. Engheta and I. M. Pinto, “Metamaterial Inclusions Based on Grid-Graph Hamiltonian Paths,” to appear in Microwave and Optical Technology Letters, Vol. 48, Vo. 12, pp. 2420-2425, December 2006.
J. McVay, V. Pierro, V. Galdi, A. Hoorfar, N. Engheta and I. M. Pinto, “Metamaterial Inclusions Based on Grid-Graph Hamiltonian Paths,” Third Workshop on Metamaterials and Special Materials for Electromagnetic Applications and TLC, Rome, Italy, March 2006.
J. McVay, A. Hoorfar and N. Engheta, "Techniques for Bandwidth Enhancement and Polarization Dependence Reduction of Space-Filling Curve Artificial Magnetic Conductors", Proceedings of IEEE International Symposium on Antennas and Propagation and URSI Radio Science Meeting, Washington, DC, July 2005.
J. McVay, A. Hoorfar and N. Engheta, "Thin Absorbers Using Space-Filling Curve High Impedance Surfaces", Proceedings of IEEE International Symposium on Antennas and Propagation, Washington, DC, July 2005.
. McVay, N. Engheta, and A. Hoorfar, “Space-Filling-Curve Elements as Possible Inclusions for Double-Negative Metamaterials,” IEEE International Symposium on Antennas and Propagation, June 2004.
A. Hoorfar, J. Zhu and N. Engheta, “Evolutionary Synthesis of Non-Uniform Partially Reflective Surfaces for Beam Shaping of Microstrip Antennas” Proceedings of the IEEE International Conference on Electromagnetics in Advanced Applications, Torino, Italy, pp. 675-678, September, 2003.
J. McVay, A. Hoorfar and N. Engheta, "Radiation Characteristics of Microstrip Dipole Antennas over a High-Impedance Metamaterial Surface made of Hilbert Inclusions," Proceedings of the 2003 IEEE International Microwave Symposium, Philadelphia, pp. 587-580, June 2003.
N. Engheta, S. Nelatury and A. Hoorfar, "The role of geometry of inclusions in forming metamaterials with negative permittivity and permeability", Digest of the XXVII General Assembly of the International Union of Radio Science (URSI), Maastricht, Netherlands, pp.258-260, August 2002.
N. Engheta, S. Nelatury and A. Hoorfar, “Omega medium as a metamaterial with negative permittivity and permeability", Proceedings of Joint IEEE AP-S International Symposium and Radio Science (URSI) Meeting, San Antonio, Texas, June 2002.
A. Hoorfar, N. Engheta, R. Sun and J. Zhu, “Non-uniform partially reflective surfaces for high gain planar antennas", Proceedings of Joint IEEE AP-S International Symposium and Radio Science (URSI) Meeting, San Antonio, Texas, pp. 266, June 2002.

Electromagnetic Optimizations using Evolutionary Computational Techniques. Samples of our pubilcations in this area:

V. Jamnejd and A. Hoorfar, "A New Evolutionary Technique Based on Tukey-Lambda Probability Distribution for Electromagnetic Optimization Problems," IEEE International Symposium on Antennas and Propagation, Toronto, Canada, July 2010.
C. Thajudeen and A. Hoorfar, “Design of Yagi Array of Peano Top-Loaded Monopoles using Evolutionary Optimization,” IEEE International Symposium on Antennas and Propagation, Toronto, Canada, July 2010.
S. Lakhani, and A. Hoorfar, “Faster Antenna Optimization Using a Hybrid EP-PSO Algorithm,” IEEE International Symposium on Antennas and Propagation, Charleston, SC, June 2009.
A. Hoorfar, “Evolutionary Programming in Electromagnetic Optimization,” IEEE Transactions on Antennas and Propagation, Vol. 55, No. 3, pp. 523-537, March 2007.
V. Jamnejad and A. Hoorfar, "Optimization of the Antenna Beam Transmission Efficiency", 2008 IEEE International Symposium on Antennas and Propagation, San Diego, CA, 2008.
A. Hoorfar, S. Lakhani and V. Jamnejad, “Application of Lévy Mutation Operator in Evolutionary Programming Optimization of Antennas,” International Conference on Electromagnetics in Advanced Applications, Turin, Italy, September 2007.
H. Huang, A. Hoorfar and S. Lakhani “A Comparative Study of Evolutionary Programming, Genetic Algorithms and Particle Swarm Optimization in Antenna Design,” International Symposium on Antennas and Propagation, Honolulu, HI, June 2007.
V. Jamnejad and A. Hoorfar, “Design of Corrugated Horn Antennas by Evolutionary Optimization Techniques,” IEEE Antennas and Wireless Propagation Letters, Vol. 3, PP. 276-280, December 2004.
A. Hoorfar and R. Sun, “Optimization of Dual-Band Meander-line Polarizer Plates Using a Hybrid Evolutionary Programming Algorithm,” IEEE AP-S International Symposium, Monterey, CA, pp. 2325-2328, June 2004.
A. Hoorfar, J. Zhu and S. Nelatury, “Electromagnetic optimization using a mixed-parameter self-adaptive evolutionary algorithm,” Microwave and Optical Technology Letters, pp. 267-271, November 2003.
A. Hoorfar, J. Zhu and N. Engheta, “Evolutionary Synthesis of Non-Uniform Partially Reflective Surfaces for Beam Shaping of Microstrip Antennas” Proceedings of the IEEE International Conference on Electromagnetics in Advanced Applications, Torino, Italy, pp. 675-678, September, 2003.
A. Hoorfar, “Evolutionary Computational Techniques in Electromagnetics," Proceedings of the 9thInternational Conference on Mathematical Methods in Electromagnetic Theory, Kiev, Ukraine,, Vol. 1, pp. 54-60, September 2002.
A. Hoorfar and J. Zhu, "A novel Hybrid EP-GA method for efficient electromagnetics optimization," Digest of the 2002 IEEE Antennas and Propagation Society (AP-S) International Symposium and USNC/URSI National Radio Science Meeting, San Antonio, Texas. pp. 310-313, June, 2002.
V. Jamnejad, A. Hoorfar and F. Manshadi “Evolutionary Design of Corrugated Horn Antennas," Proceedings of the 2002 International Symposium on Antennas, Nice, France,, pp. 467-470, November 2002.
A. Hoorfar and V. Jamnejad, “A Comparative Study of the Design of Corrugated Horn Antennas by Evolutionary Optimization Techniques," Proceedings of the 2003 IEEE Aerospace Conference, Big Sky, Montana, pp. 365-370, March 2002.
A. Hoorfar and Yuan Liu, “Evolutionary design of a Yagi-like array of proximity-fed stacked microstrip patch elements," Proceedings of the URSI International Symposium on Electromagnetic Theory, Victoria, Canada, pp. 630-632, May, 2001.
A. Hoorfar and Yuan Liu, “Antenna Optimization Using an Evolutionary Programming Algorithm with a Hybrid Mutation Operator,” Proceedings of the IEEE AP-S International Symposium, Sal Lake City, UT, pp. 1026-1029, July 2000.
A. Hoorfar and Yuan Liu, “A study of Cauchy and Gaussian mutation operators in evolutionary programming optimization of antenna structures," Proceedings of the 16th Annual Applied Computational Electromagnetics Conference , Monterey, CA, pp. 63-69, March 2000.
A. Hoorfar, “Mutation-based evolutionary algorithms and their applications to optimization of antennas in layered media,” Proceedings of the IEEE AP-S International Symposium, Orlando, FL, pp. 2876-2879, July 1999.
K. Chellapilla, S.S. Rao and A. Hoorfar, “Optimization of thinned phased arrays using evolutionary programming," Proceedings of EP’98 : The Seventh Intl. Conf. on Evolutionary Programming, pp. 157 – 166, March 1998. Also, in the book “Lecture Notes in Computer Science” published by Springer-Verlog, 1998.
A. Hoorfar and K. Chellapilla, “Gain optimization of a multi-layer printed dipole array using evolutionary programming," Proceedings of the IEEE AP-S International Symposium, Atlanta, GA, pp. 46-49 , June 1998.
K. Chellapilla and A. Hoorfar “Evolutionary programming: an efficient alternative to genetic algorithms for electromagnetic optimization problems," Proceedings of the IEEE AP-S International Symposium, Atlanta, GA, pp. 42-45, June 1998.

Low-Profile and Printed Antennas. Samples of our pubilcations in this area:

S. Lakhani, A. Hoorfar and R. Caverly," Fixed and Reconfigurable Dual Wideband and Very Wideband Antennas Using Half E-Shaped Patch Elements" IEEE Sarnoff Symposium, April 2008.
C. Thajudeen, J. McVay and A. Hoorfar, “A Novel Wideband Dual-Stacked Peano-Curve Top-Loaded Monopole for UAV Applications,” IEEE Sarnoff Symposium, April 2008.
J. McVay, C. Thajudeen and A. Hoorfar “Stacked Peano Curve Top-Loaded Monopoles for Wide-Band Performance,” 2008 General Assembley of URSI Chicago, IL, August 2008.
John McVay, Christopher Thajudeen, and Ahmad Hoorfar, "Reconfigurable Top-Loaded Monopoles Using Stacked Space-Filling Curves,” 2008 IEEE International Symposium on Antennas and Propagation, San Diego, CA, 2008.
M. Ghanevati, A. S. Daryoush and A. Hoorfar, “Performance Analysis of a Quadrifilar Helix Antenna Above the Ground Plane,” IEEE Radio and Wireless Symposium, Long Beach, CA, January 2007.
V. R. Komanduri, A. Hoorfar and F. Plonski, "Performance Analysis of a Dual Stacked E-Shaped Patch Antenna on a USV Platform for Broadband VHF Applications", Proceedings of Intelligent Ship Symposium, Villanova, PA, June 2005.
V. R Komanduri, A. Hoorfar and N. Engheta, “Low-Profile Array Design Considerations for Through-the-Wall Microwave Imaging Applications,” Proceedings of the 2005 IEEE Inter. AP-S Symposium. Washington DC, July 2005.
V. R. Komanduri, A. Hoorfar and N. Engheta, "Wideband Printed Antenna Elements For Through-Wall Microwave Imaging Applications," Proceedings of the 2004 IEEE Sarnoff Symposium on Advances in Wired and Wireless Communications, Ewing, NJ, pp. 61-64, April, 2004.
B.A. Obeidat, M.G. Amin, Y. Zhang, and A. Hoorfar, “Sensor Configuration in Polarized Antenna Arrays,” ISSPA 2005, Sidney, Australia, August 2005.
M. G. Amin, Y. Zhang, V. Mancuso, and A. Hoorfar, "Applications of smart antennas to rotorcrafts", Digital Signal Processing, Vol. 13, No. 2/3, pp. 159-174, April/July 2002.
A. Hoorfar and R. Sun, “High gain microstrip antennas with a high permittivity focusing layer for millimeter-wave applications," Proceedings of the IEEE International Conference on Electromagnetics in Advanced Applications, Torino, Italy, pp. 255-258, September, 2001.
R. Sun and A. Hoorfar, "Millimeter-wave Microstrip Arrays for Hybrid Photonic/Wireless Communication System," Proceedings of the 2001 IEEE Sarnoff Symposium, Ewing, NJ, pp. 147-150, March 2001.
A. Hoorfar, G. Girard and A. Perrotta, “A dual frequency circular-polarized electromagnetically-fed microstrip antenna,“ Electronics Letters, Vol. 35, Number 10, pp. 759-761, May 1999.

A. Hoorfar, and A. Perrotta, “Dual frequency circularly-polarized electromagnetically-fed microstrip antennas,” Proceedings of Joint IEEE AP-S International Symposium and Radio Science (URSI) Meeting, Montreal, Canada, July 1997.

Through-Wall Sensing and Imaging. Samples of our pubilcations in this area:

A. Hoorfar and A. Fathy, “Antenna Elements, Arrays and Systems for Through-Wall Imaging Radar” Book Chapter, to appear in 2010.
W. Zhang, A. Hoorfar, “Polarimetric Through-the-Wall Imaging,” Accepted for URSI Electromagnetic Theory Symposium (EMTS), August 2010.
C. Thajudeen and A. Hoorfar, “A Comparative Study Of Wall Parameter Estimation And Mitigation Techniques In Through -The-Wall Microwave Imaging,” IEEE International Symposium on Antennas and Propagation, Toronto, Canada, July 2010.
W. Zhang, A. Hoorfar, “A. Multi-static Radar Through-the-Wall Imaging with Time Reversal MUSIC Algorithm,” Progress in Electromagnetic Research Symposium (PIERS), Boston, July 2010
W. Zhang, C. Thajudden, A. Hoorfar, "Full Polarimetric Beamforming for Through-the-Wall Radar Imaging," IEEE International Symposium on Antennas and Propagation, Toronto, Canada, July 2010.
C. Thajudden, W. Zhang, A. Hoorfar, “Time-Domain Wall Parameter Estimation and Mitigation for Through-the-Wall Image Enhancement”, Progress in Electromagnetic Research Symposium (PIERS), Boston, July 2010.
C. Thajudden, A. Hoorfar, F. Ahmad, T. Dogaru, An Aggregate Modeling and Measurement Approach for Power Estimation of Through-the-Wall Target Returns. Proceedings of SPIE Symposium, Orlando, FL, April 2010.
K. M. Yemelyanov, N. Engheta, A. Hoorfar, J. McVay, “Adaptive Polarization Contrast Techniques for Through-Wall Microwave Imaging Applications,” IEEE Transactions on Geosciences and Remote Sensing, VOL. 47, NO. 5, 1375-1387, May 2009.
A. Hoorfar and C. Thajudeen “Multilayer Wall Parameter Estimation and Mitigation Techniques in Through-Wall Imaging Radar,” IEEE International Symposium on Antennas and Propagation and the USNC/URSI National Radio Science meeting, Charleston, SC, June 2009.
A. Hoorfar, F. Ahmad, C. Thajudeen, "Synthesis of Wideband Imaging Beamformers Using Evolutionary Programming,” 2008 IEEE International Symposium on Antennas and Propagation, San Diego, CA, 2008.
H. Estephan, K. M. Yemelyanov, A. Hoorfar, and M. Amin, "Natural Frequency Classifications Of Walls And Targets In Through-The-Wall Radar Imaging", 2008 IEEE International Symposium on Antennas and Propagation and the USNC/URSI National Radio Science meeting, San Diego, CA, 2008.
K. M. Yemelyanov, J. A. McVay, A. Hoorfar and N. Engheta, “Characterization of the walls using polarization-contrast techniques,” 2007 URSI Meeting, Ottawa, Canada, July 2007.
K. M. Yemelyanov, J. A. McVay, A. Hoorfar and N. Engheta, “Polarization-Contrast Sensing in Complex Environment for Through-the-Wall Microwave Imaging Applications,” IEEE International Symposium on Antennas and Propagation, Honolulu, HI, June 2007.
J. McVay, K. M. Yemelyanov, N. Engheta and A. Hoorfar, “Through-the-Wall Imaging and Sensing: An Electromagnetic Perspective,” 2007 IEEE Signal Processing Society, SAFE 2007: Workshop on Signal Processing Applications for Public Security and Forensics, Washington D.C., April 2007.
J. McVay, V. R. Komanduri, K. M. Yemelyanov, A. Hoorfar and N. Engheta, “Experimental Study of Wall Effects on the Performance of a Dual Polarized, Broadband Array of Stacked E-Patch Elements in Through-Wall Imaging Applications,” 2006 IEEE International Symposium on Antennas and Propagation and URSI meeting,, Albuquerque, NM, July 2006.
K. M. Yemelyanov, J. McVay, N. Engheta and A. Hoorfar, “Transient Adaptive Polarization-Contrast Imaging Algorithm for Through-Wall Detection of Objects inside the Room,” 2006 IEEE International Symposium on Antennas and Propagation and URSI meeting,, Albuquerque, NM, July 2006.
K. M. Yemelyanov, J. McVay, N. Engheta and A. Hoorfar, “An Overview of the Role of Adaptive Polarization-Contrast Techniques in Through-Wall Microwave Imaging Applications,” 2006 IEEE International Symposium on Antennas and Propagation and URSI meeting, Albuquerque, NM, July 2006.
M. Yemelyanov, J. A. McVay, N. Engheta, A. Hoorfar, “Transient Adaptive Polarization Contrast Techniques in Time-Domain Scattering with Applications in Through-Wall Microwave Imaging,” Proceedings of the 2005 General Assembly of the International Union of Radio Science, New Delhi, India, October, 2005.
V. R Komanduri, A. Hoorfar and N. Engheta, “Low-Profile Array Design Considerations for Through-the-Wall Microwave Imaging Applications,” Proceedings of the 2005 IEEE Inter. AP-S Symposium. Washington DC, July 2005.
N. Bliznyuk, N. Engheta, and A. Hoorfar, "“Effects of Wall Parameters and Standing Waves between Walls in Through-Wall-Imaging Applications,” Proceedings of the 2004 IEEE International Symposium on Antennas and Propagation, Monterey, CA, June 2004.
K. M. Yemelyanov, J. A. McVay, N. Engheta and A. Hoorfar, “Adaptive Polarization-Difference Imaging Algorithms for Through-the-Wall Microwave Imaging Scenarios,” Proceedings of the 2005 IEEE Inter. AP-S Symposium. Washington DC, July 2005.
V. R. Komanduri, A. Hoorfar and N. Engheta, "Wideband Printed Antenna Elements For Through-Wall Microwave Imaging Applications," Proceedings of the 2004 IEEE Sarnoff Symposium on Advances in Wired and Wireless Communications, Ewing, NJ, pp. 61-64, April, 2004.

RFID Tags. Samples of our pubilcations in this area:

J. McVay, A. Hoorfar and N. Engheta, " Space-Filling Curve Radio Frequency Identification Tags," ACES Journal, to appear in 2010.
L. Sydänheimo, L. Ukkonen, J. McVay, A. Hoorfar, M. Kivikoski, "Characterization Of Passive UHF RFID Tag Performance" IEEE Antennas and Propagation Magazine, pp. 207-212, June 2008 ( Also in AMTA Symposium, St. Louis, Missouri, November 2007)

J. McVay, A. Hoorfar and N. Engheta, “Space-Filling Curve RFID Tags,” Proceedings of the IEEE Radio and Wireless Symposium, San Diego, CA, January 2006.

J. McVay, A. Hoorfar and N. Engheta, "Theory and experiments on Peano and Hilbert curve RFID tags," Proceedings of the 2006 International Society for Optical Engineering (SPIE) Symposium on Defense and Security, Orlando, FL, April 2006.

Computational Electromagnetics. Samples of our pubilcations in this area:

A. Hoorfar and V. Jamnejad, “Electromagnetic modeling and analysis of wireless communication antennas," IEEE Microwave Magazine, Vol. 4, No. 1, pp. 51-67, March 2003.
S. Nelatury and A. Hoorfar, "Closed form expressions for Green's functions of microstrip structures on a uniaxially anisotropic substrate,” International Journal of RF and Microwave Computer-Aided Engineering, Vol. 13, No. 2, pp. 161-167, March 2003.
C. Wan and A. Hoorfar, “Improved Design Equations for Multilayer Microstrip Lines,” IEEE Microwave and Guided Wave Letters, Vol. 10, Number 6, pp. 223-24, June 2000.
A. Hoorfar, "Integral equation modeling of microstrip circuits and antennas using closed-form Green’s Functions," Microwave and Optical Technology Letters, pp. 342-346, March 1999.
A. Hoorfar and D. C. Chang, “Closed-form solutions to Green’s functions in microstrip problems with a thin substrate,” Radio Science, Vol. 30, No. 2, pp. 343-351 April 1995.
A. Hoorfar, "Simple closed-form expressions for microstrip Green's functions in a magneto-dielectric substrate," Microwave and Optical Technology Letters, Vol. 8, No. 1, pp. 33-36, January 1995.
A. Hoorfar and D. C. Chang, “Semi-analytical solutions for microstrip Green's functions in multi-layered media,” Proceedings of the 1998 URSI International Symposium on Electromagnetic Theory , PP. 618-620, May 1998, Thessaloniki, Greece.
Y. Zhang and A. Hoorfar, “FDTD analysis of microstrip antennas on a curved multi-layer substrate", Proceedings of the 15th IEEE Benjamin Franklin Symposium, Philadelphia, pp. 2-5, May 1997.

Antenna Measurements. A Samples of our pubilcations in this area:

F. Plonski, A. Hoorfar and V. Mancuso, “Measurement Accuracy of Stereolithography Scale Models,” 2006 AMTA symposium, Austin, Texas, October 2006.
C. M. Pereira, W. Tang, J. Rastegar, P. Singh, and A. Hoorfar, “Experimental results for a new class of sensors for the measurement of angular orientation of objects,” Proceedings of the 2004 SPIE Symposium, Ottawa, Canad, September 2004.
C. Wan and A. Hoorfar, “Explicit determination of complex permittivity and permeability using a partial two-port calibration,” Proceedings of the 53rd ARFTG Conference, Anaheim, CA, PP. 181-186, Anaheim, CA, June 1999.

Research at ARL