Conference Papers

1.      I. Hinostroza, R. Guinvarc'h, R. L. Haupt, "Two stacked orthogonaly wound spirals with connected arms,” IEEE AP-S Symposium, Vancouver, B.C., Canada, Jul 2015.

2.      P. Mendes Ruiz, I. Hinostroza, R. Guinvarc'h, R.L. Haupt,"Size constraint in design of concentric ring array," IEEE AP-S Symposium, Vancouver, B.C., Canada, Jul 2015.

3.      P. Nayeri, A.Z. Elsherbeni, R.L. Haupt, F. Yang, "Near-field characteristics of focused transmitarray antennas," IEEE MTT-S International Microwave Workshop Series on  Advanced Materials and Processes for RF and THz Applications (IMWS-AMP), July 2015.

4.      P. Nayeri, A.Z. Elsherbeni, and R. Haupt, “Mutual coupling in an array of Vivaldi antennas with wide instantaneous bandwidth," IEEE Radar Conference, Arlington, VA, May 2015.

5.      P. Nayeri, A.Z. Elsherbeni, and R.L. Haupt, “Broadband focusing using aperture-coupled microstrip patch antenna arrays,” 8th European Conference on Antennas & Propagation, Lisbon, Portugal, Apr 2015.

6.      P. Nayeri, A.Z. Elsherbeni, and R.L. Haupt, "Near-field scanning characteristics of focused reflectarray antennas, ACES Conference, Williamsburg, VA, Mar 2015.

7.      P. Nayeri, A.Z. Elsherbeni, and R. Haupt, “Phased array antenna limitations for ultra-wideband focusing,” IEEE Conference on  Antenna Measurements & Applications (CAMA), Nice, France, Nov 2014.

8.      R.L. Haupt, "Adaptive nulling by variable array thinning," ICEAA Conference, Aruba, Aug 2014.

9.      R. Haupt, "Reconfigurable thinned arrays," IEEE Radar Conference, Cincinatti, OH, May 2014.

10.  R.L. Haupt and M. Weiss, "Power amplifier models for multi-beam wideband active transmit arrays," IEEE AP-S Symposium, Memphis, TN, Jul 2014.

11.  I. Hinostroza, R. Guinvarc'h, R. L. Haupt, "PEC cavity for a ring array of spiral antennas," IEEE AP-S Symposium, Memphis, TN, Jul 2014.

12.  R. Haupt, " Tradeoffs in the placement of time delay in a large, wideband antenna array," 8th European Conference on Antennas & Propagation, The Hague, Netherlands, Apr 2014.

13.  P. Moosbrugger, M. Adkins, and R.L. Haupt, "Degradation in Theoretical Phase Shift Keying Waveforms due to Signal Dispersion in a Large Communications Phased Array," IEEE Phased Array Symposium, Boston, MA Oct 2013.

14.  I. Hinostroza, R. Guinvarc'h, and R.L. Haupt, "Narrow band resonances in planar array of spiral antennas without ground plane," IEEE Phased Array Symposium, Boston, MA Oct 2013.

15.  R. Haupt, "Adaptive Low Sidelobe Thinning," 2014 ICEAA Conference, Turino, Italy, Sep 2013.

16.  M.D. Weiss and R.L. Haupt, "The Impact of Time Delay Verses Phase Steering on the Harmonics Radiated by a Multibeam Wideband Active Transmit Array," 2013 ICEAA Conference, Turino, Italy, Sep 2013.

17.  J.K. Infantolino, A.J. Kuhlman, M.D. Weiss, and R.L. Haupt, “Modeling RF Attenuation in a Mine Due to Tunnel Diameter and Shape,” IEEE AP-S Symposium, Orlando, FL, Jul 2013.

18.  R.L. Haupt, "Time Delay Unit Quantization at the Subarray Level for Large, Wideband Linear Arrays," EMTS Symposium, Hiroshima, Japan, May 2013.

19.  R. L. Haupt, "Fitting Time Delay Units in a Large Wideband Corporate Fed Array," IEEE Radar Conference, Ottawa, Canada, Apr 2013.

20.  J. K. Infantolino, A.J. Kuhlman, M. D. Weiss, and R. L. Haupt, "Modeling RF Propagation in Mines Using Wireless InSite," ACES Conference, Monterey, CA, Mar 2013.

21.  R.Haupt and M.D. Weiss, "Signal Quality in a Multibeam Transmit Array," National Radio Science Meeting, Boulder, CO Jan 2013.

22.  R. Haupt and P. Moosbruger, "Maintaining a constant beamwidth when scanning a phased array," ICWITS, Nov 2012, Maui, HI.

23.  R. Haupt, M. Weiss, "Signal Distortion in Multibeam Broadband Active Transmit Arrays with Time Domain Beamsteering," IEEE AP-S Symposium, Chicago, IL Jul 2012.

24.  R. Haupt, B. Thrall, A. Lyons, M. B. Davis, and R. Fitzgerald, "Phased Array Scanning with Sequential Commands," IEEE AP-S Symposium, Chicago, IL Jul 2012.

25.  I. Hinostroza, R. Guinvarc'h, and R. L. Haupt, " A Dual Polarized Planar Phased Spiral Antenna Array," IEEE AP-S Symposium, Chicago, IL Jul 2012.

26.  R. Haupt and R. Sun, “Calculating Radiation Hazards from Phased Arrays Using FEKO,” ACES Conference, Columbus, OH, Apr 2012

27.  R. Haupt, A. Lyons, B. Thrall, and M. Huisjen, " Compensating for antenna array tracking measurement errors," National Radio Science Meeting, Boulder, CO, Jan, 2012.

28.  A. Lyons, B. Thrall, M. Weiss M. Davis, M. Huisjen, and R. Haupt, "Antenna pattern measurements of an S-band satellite communications phased array antenna panel," AMTA Symposium, Oct 2011.

29.  R. Haupt, "Time modulated receive arrays," IEEE AP-S Conference, Spokane, WA, 2011.

30.  I. Hinostroza, R. Haupt, and R. Guinvarch, "The design of wide band planar arrays of spiral antennas," IEEE AP-S Conference, Spokane, WA, 2011.

31.  P. Rocca and R. Haupt, "Dynamic thinning strategy for adaptive nulling in planar antenna arrays," IEEE Phased Array Symposium, Oct 2010.

32.  I. Hinostroza, R. Guinvarc'h, and R. Haupt, "Improving Axial Ratio of a Planar Phased Array of Spirals," accepted to IEEE AP-S Conference, Toronto, Canada, Jul 2010.

33.  R. Guinvarc'h and R. Haupt, "A Dual Polarization Phased Array with Connected Spirals," accepted to IEEE AP-S Conference, Toronto, Canada, Jul 2010.

34.  R. Haupt, "Element Selection for Partial Adaptive Nulling," accepted to IEEE AP-S Conference, Toronto, Canada, Jul 2010.

35.  J. Barney, J. Knapil, and R. Haupt, "Optimal antenna placement on a train using a genetic algorithm," ACES Conference, Tampere Finland, Apr 2010.

36.  P. Rocca and R. L. Haupt, "Dynamic Array Thinning for Adaptive Interference Cancellation," EuCAP 2010, Barcelona, Spain, Apr 2010.

37.  R.L. Haupt and J.R. Flemish, "Linear array with photoconductive attenuators," accepted for EuCAP 2010, Barcelona, Spain, Apr 2010.

38.  J. M. K. Infantolino, M. J. Barney, and R. L. Haupt, “Using a Genetic Algorithm to determine an optimal position for an antenna mounted on a platform,” MILCOM 2009, Oct 2009.

39.  D.W. Aten  and R.L. Haupt, "Genetically optimized, low profile, wideband, shorted monocone antenna," 2009 IEEE AP-S Symposium, Charlestown, SC, Jun 2009.

40.  R. Guinvarc’h and R.L. Haupt, "Optimization of a dual polarization interleaved wideband spiral phased array," 2009 IEEE AP-S Symposium, Charlestown, SC, Jun 2009.

41.  R.L. Haupt, D. Aten, S.E. Haupt, "Radar reflectors for submarines," 2009 IEEE AP-S Symposium, Charlestown, SC, Jun 2009.

42.  P. Rocca and R.L. Haupt, "Low sidelobes in array antennas of equal sub-arrays 
through element phase control," 2009 IEEE AP-S Symposium, Charlestown, SC, Jun 2009.

43.  J. Barney, J. Knapil, and R. Haupt, "Determining an optimal antenna placement using a genetic algorithm," 2009 IEEE AP-S Symposium, Charlestown, SC, Jun 2009.

44.  J. Barney, J. Knapil, and R. Haupt, "Determining optimal antenna parameters while mounted on a platform using a genetic algorithm," 2009 URSI Conference, Charlestown, SC, Jun 2009.

45.  T. O’Donnell, R. Haupt, and K. Lysiak, "Issues involved in developing a genetic algorithm methodology for optimizing the position of ship board antennas," SPIE Evolutionary and Bio-Inspired Computation:  Theory and Applications III, Orlando, FL, Apr 2009.

46.  R.L. Haupt, "Adaptive antennas," Plenary talk for 2009 ACES Conference, Monterey, CA.

47.  R.L. Haupt, D.W. Aten, and S.E. Haupt, "Modeling maritime radar reflectors using FEKO," 2009 ACES Conference, Monterey, CA.

48.  R.L. Haupt and D.W. Aten, "Recent Antenna Projects at the Penn State Applied Research Laboratory," Antenna Technologies Crosswalk Conference, Annapolis Junction, MD, Dec 2008.

49.  R.L. Haupt, "Reconfigurable patch that is resonant at four frequencies," IEEE AP-S Symposium, San Diego, CA, Jul 2008.

50.  R.L. Haupt, "Thinned concentric ring arrays," IEEE AP-S Symposium, San Diego, CA, Jul 2008.

51.  D.W. Aten and R.L. Haupt, "Low sidelobe polarization tapers for planar arrays," 2008 ACES Conference, Niagara Falls, ON, Canada, Apr 08.

52.  R.L. Haupt, "Optimized aperiodic concentric ring arrays," 2008 ACES Conference, Niagara Falls, ON, Canada, Apr 08.

53.  R.L. Haupt, "An adaptive rectangular microstrip patch antenna array element using photonic controls," 2008 IEEE Aerospace Conference, Big Sky, MT, Mar 08.

54.  R.L. Haupt and J.R. Flemish, "Reconfigurable and adaptive antennas using materials with variable conductivity," Adaptive Hardware and Systems 2007, Edinburgh, UK, 5-8 Aug 2007.

55.  S.E. Haupt, R.L. Haupt, and G.S. Young, "Using Genetic Algorithms in Chem-Bio Defense Applications," BLISS-2007, Edinburgh, UK, 9-10 Aug 2007.

56.  R.L. Haupt and J.R. Flemish, "Microstrip patch with adaptive conductivity," IEEE AP-S Symposium, Honolulu, HI, Jun 2007.

57.  R.L. Haupt, R. Martin, and J.R. Flemish, "Broadband monopole patch antenna optimization," IEEE AP-S Symposium, Honolulu, HI, Jun 2007.

58.  R.L. Haupt, "Interfacing FEKO and MATLAB for microstrip antenna design," 2007 ACES Conference, Verona, Italy, Mar 07.

59.  R.L. Haupt, "Adaptive antenna arrays using a genetic algorithm," SMCals/06, Logan, UT, 2006.

60.  R.L. Haupt, "Low sidelobes from identically thinned subarrays," IEEE AP-S Symposium, Albuquerque, NM, 2006.

61.  R.L. Haupt, "Interleaving thinned sum and difference linear arrays," IEEE AP-S Symposium, Albuquerque, NM, 2006.

62.  R.L. Haupt, "A combined continuous/binary genetic algorithm for microstrip antenna design," 2006 ACES Conference, Miami, FL, Mar 06.

63.  R.L. Haupt, "Optimizing salisbury screens using FEKO," 2006 ACES Conference, Miami, FL, Mar 06.

64.  R.L. Haupt and J. Flemish, "Adaptive reflector antenna with smart materials," IEEE AP-S Symposium, Washington, D.C., Jul 05.

65.  R. Martin and R.L. Haupt, "Element impedance variations in fractal arrays," IEEE AP-S Symposium, Washington, D.C., Jul 05.

66.  R.L. Haupt, "Thinned interleaved linear arrays," 2005 IEEE International Conference on Wireless Communications, Honolulu, HI, Apr 05.

67.  R.L. Haupt, "A horn-fed reflector optimized with a genetic algorithm," 2005 ACES Conference, Honolulu, HI, Apr 05.

68.  N. Malik and R.L. Haupt, "Near field nulling with a cylindrical reflector and moving plates," IEEE AP-S Symposium, vol. 3, Jun 04, pp. 3019-3022.

69.  S. Biyani, R.L. Haupt, and T. Bose, "Azimuth and elevation direction finding with planar arrays using Thompson's adaptive method," 2004 AP-S Symposium, Jun 04.

70.  R.L. Haupt, "Selecting genetic algorithm operators for CEM problems," 2004 ACES Conference, Syracuse, NY, Apr 04.

71.  R.L. Haupt, "Synthesis of a plane wave in the near field with a planar phased array," 2003 AP-S Symposium, Columbus, OH, Jun 03.

72.  Y.C. Chung and R.L. Haupt, "Comparison of optimum mutation rates for continuous and binary genetic algorithms," 2003 URSI meeting, Columbus, OH, Jun 03.

73.  S.E. Haupt and R.L. Haupt, "Genetic Algorithms in Geophysical Fluid Dynamics," 3rd Conference on Artificial Intelligence Applications to the Environmental Science, Long Beach, CA, Feb 03.

74.  C.C. Courtney, D.E. Voss, R.L. Haupt, and L. LeDuc, "The theory and architecture of a plane wave generator," 2002 AMTA Conference, Cleveland, OH, Nov 02.

75.  C.C. Courtney, D.E. Voss, R.L. Haupt, and L. LeDuc, "The measured performance of a plane wave generator prototype," 2002 AMTA Conference, Cleveland, OH, Nov 02.

76.  R.L. Haupt, "Adaptive crossed dipole antennas," URSI General Assembly, Netherlands, Aug 02.

77.  D. Yang, Y.C. Chung, and R.L. Haupt, "Genetic algorithm optimization of a corrugated conical horn antenna," 2002 AP-S Symposium, San Antonio, Tx, Jun 02.

78.  Kelvin Rocha, Anand Venkatachalam, Tamal Bose and Randy L. Haupt "Multiplierless Algorithms for High-Speed Real-Time Onboard Image Processing," 2002 IEEE Aerospace Conference, Big Sky, MT, Mar 02.

79.  B. D. Griffin, R.L. Haupt, and You Chung Chung, "Adaptive Polarization for Spacecraft Communications System," 2002 IEEE Aerospace Conference, Big Sky, MT, Mar 02.

80.  S.E. Haupt and R.L. Haupt, "Junior engineering and science conference," Proceedings of the 11th Education Symposium, American Meteorological Society, Jan 02.

81.  R. Thamvichai, T. Bose, and R.L. Haupt, "Design of 2-D multiplierless filters using the genetic algorithm," Asilomar Conference on Signals, Systems and Computers Nov 01, pp.588-591.

82.  R.L. Haupt, "Generating plane waves from a linear array of line sources ," 2001 AMTA Conference, Denver, CO, Oct 01.

83.  Y.C. Chung and R.L. Haupt, "Wide band antenna optimization CAD tool," 2001 AP-S Symposium, Boston, MA, Jul 01.

84.  R.L. Haupt, "History of smart antennas," 2001 AP-S Symposium, Boston, MA, Jul 01.

85.  R. Mathur, R.L. Haupt, and C. Swenson, "Antenna design for USUsat," IEEE Aerospace Conference, Mar 2001.

86.  R.L. Haupt and Y.C. Chung, "Optimizing the backscattering from arrays of perfectly conducting strips," 17th Annual Review of Progress in Applied Computational Electromagnetics Conference, Mar 01.

87.  R.L. Haupt, "Optimum population size and mutation rate for a simple real genetic algorithm that optimizes array factors," 2000 AP-S Symposium, Salt Lake City, UT, Jul 00.

88.  Y.C. Chung and R.L. Haupt, "GA using varied and fixed binary chromosome length vs. real continuous chromosomes for low sidelobe pattern synthesis of spherical arrays," 2000 AP-S Symposium, Salt Lake City, UT, Jul 00.

89.  Y.C. Chung and R.L. Haupt, "Log-periodic dipole array optimization," 2000 IEEE Aerospace Conference, Big Sky, MT, Mar, 00.

90.  Y.C. Chung and R.L. Haupt, "Optimum amplitude and phase control for an adaptive linear array using a genetic algorithm," 1999 AP-S Symposium, Orlando, FL, Jul 99.

91.  Y.C. Chung and R.L. Haupt, "Adaptive nulling with spherical arrays using a genetic algorithm," ," 1999 AP-S Symposium, Orlando, FL, Jul 99.

92.  R.L. Haupt and S.E. Haupt, "Introduction to genetic algorithms," 24th General Assembly of the European Geophysical Society, The Hague, Netherlands, Apr 99.

93.  S.E. Haupt and R.L. Haupt, "Using genetic algorithms to find equilibrium solutions in geophysical fluid dynamics," 24th General Assembly of the European Geophysical Society, The Hague, Netherlands, Apr 99.

94.  Y.C. Chung and R.L. Haupt, "Optimizing genetic algorithm parameters for adaptive nulling," 15th Annual Review of Progress in Applied Computational Electromagnetics Conference, Mar 99.

95.  R.L. Haupt and H.L. Southall, "Adaptive nulling in a cylindrical array," 1999 IEEE Aerospace Conference, Snowmass, CO, Mar 99.

96.  Y. Chung and R.L. Haupt, "Amplitude and phase adaptive nulling with a genetic algorithm," 1998 IEEE/URSI International Symposium, Atlanta, GA, Jun 98.

97.  S.E.. Haupt and R.L. Haupt, "Optimizing complex systems," 1998 IEEE Aerospace Conference, Snowmass, CO, Mar 98.

98.  R.L. Haupt, "Backscattering synthesis from tapered resistive grids"14th Annual Review of Progress in Applied Computational Electromagnetics Conference, Mar 98.

99.  D.H. Werner and R.L. Haupt, "Fractal constructions of linear and planar arrays," 1997 IEEE AP-S Symposium, Montreal, Canada, Jul 97.

100.          S.E. Haupt and R.L. Haupt, "Genetic algorithms in atmospheric science," AMS Waves and Stability Conference, Tacoma, WA, Jun 97.

101.          R.L. Haupt and S.E. Haupt, "Continuous parameter vs. binary genetic algorithms," 13th Annual Review of Progress in Applied Computational Electromagnetics Conference, Mar 97.

102.          R.L. Haupt and D.H. Werner, "Fast array factor calculations for fractal arrays," 13th Annual Review of Progress in Applied Computational Electromagnetics Conference, Mar 97.

103.          R.L. Haupt and S.E. Haupt, "Phase-only adaptive nulling with a genetic algorithm," 1997 IEEE Aerospace Conference, Snowmass, CO, Feb 97.

104.          M.J. Walker and R.L. Haupt, "Experimental radar cross section reduction of an array of aluminum cubes using a genetic algorithm," AMTA Conference, Seattle, WA, Sep 96.

105.          J.L. Rasmussen, R.L. Haupt, and M.J. Walker, "RCS feature extraction from simple targets using time-frequency analysis," SPIE Conference, Denver, CO, Aug 96.

106.          R.L. Haupt and H. Southall, "Antenna array beamforming based on biological processes," JINA Conference, Nice, France, Nov 96.

107.          R.L. Haupt and J.L. Rasmussen, "Wavelet analysis of scattering from simple shapes and combinations of simple shapes, " National Radio Science Meeting, " Baltimore, MD, Jul 96.

108.          R.L. Haupt, "Adaptive nullling with genetic algorithms," PIERS 96, Innsbruck, Austria, Jul 96.

109.          D. Pack, G. Toussaint, and R.L. Haupt, "Robot trajectory planning using a genetic algorithm," SPIE Conference, Denver, CO, Aug 96.

110.          R.L. Haupt, "Speeding convergence of genetic algorithms for optimizing antenna arrays," 12th Annual Review of Progress in Applied Computational Electromagnetics Conference, Monterey, CA, Mar 96.

111.          R.L. Haupt, "Genetic algorithm design of antenna arrays," IEEE Aerospace Applications Conference, Snowmass, CO, Feb 96.

112.          R.L. Haupt, "Using genetic algorithms to design antenna arrays," International Society for  Computers and Their Applications Conference, Honolulu, Hawaii, Nov 95.

113.          R.L. Haupt, "Synthesizing low sidelobe quantized amplitude and phase tapers for linear arrays using genetic algorithms," International Conference on Electromagnetics in Advanced Applications, Torino, Italy, Sep 95.

114.          R.L. Haupt, "Optimization of subarray amplitude tapers," IEEE AP-S Symposium in Newport Beach, CA, Jun 95.

115.          R. Reinhart, T. Hurwitz, R.L. Haupt, A. Ali, and S. Duval, "Time-frequency analysis of apertures," 13th Annual Benjamin Franklin Symposium, Philadelphia, PA, May 95.

116.          R.L. Haupt, "Optimization of aperiodic conducting grids," 11th Annual Review of Progress in Applied Computational Electromagnetics Conference,  Monterey, CA, Mar 95.

117.          A.S. Ali, S.E. Duval, and R.L. Haupt, "Radar cross section data reduction using wavelets," 11th Annual Review of Progress in Applied Computational Electromagnetics Conference,  Monterey, CA, Mar 95.

118.          A.S. Ali and R.L. Haupt, "Thinned grids for reduced backscatter sidelobes," 12th National Radio Science Conference, Alexandria, Egypt, Mar 21-23.

119.          R.L. Haupt, "Backscattering from aperiodic resistive grids using physical optics," National Radio Science Meeting, Boulder, CO, Jan 95.

120.          R.L. Haupt, M. August, and C. Wallace, "Unit circle synthesis of nonuniformly spaced arrays," PIERS 1994, Noordwijk, Netherlands, Jul 94.

121.          R.L. Haupt, "Optimization of array antennas using genetic algorithms," PIERS 1994, Noordwijk, Netherlands, Jul 94.

122.          R.L. Haupt, "Comparison between genetic and gradient-based optimization algorithms for solving electromagnetics problems," The Sixth Biennial IEEE Conference on Electromagnetic Field Computation in Aix-les-Bains, France, Jul 94.

123.          A.S. Ali and R.L. Haupt, "A capacitor laboratory using finite elements," ASEE Conference, Edmonton, Canada, Jun 94.

124.          R.L. Haupt, "Representing thinned and nonuniformly spaced arrays on the unit circle," IEEE AP-S Symposium in Seattle, WA, Jun 94.

125.          C. McCormack, V. Liepa, W. Williams, and R.L. Haupt, "Time-frequency analysis of two sphere scattering," National Radio Science Meeting in Seattle, WA, Jun 94

126.          R.L. Haupt and A.S. Ali, "Optimized backscattering patterns from an array of strips using genetic algorithms," 10th Annual Review of Progress in Applied Computational Electromagnetics Conference,  Monterey, CA, Mar 94.

127.          R.L. Haupt, "Fourier synthesis of simplified antenna array feed networks," National Radio Science Meeting, Boulder, CO, Jan 94.

128.          R.L. Haupt, et. al., "Thinned arrays using genetic algorithms," IEEE AP-S Conference, Ann Arbor, MI, Jun 93.

129.          E.K. Miller, R.L. Haupt, et.al., "Investigating angle scattering statistics for automatic target recognition," Radio Science Meeting, Jun 93.

130.          C.J. McCormack, R.L. Haupt, and E.K. Miller, "Selective computations over a wide bandwidth,"  National Radio Science Meeting, Boulder CO, Jan 93.

131.          R.L. Haupt, et.al., "Dynamics of electrostatic discharges," SIAM Conference on Applications of Dynamical Systems, Salt Lake City, UT, Oct 92.

132.          C.J. McCormack and R.L. Haupt, "Element impedance considerations in array design," 8th Annual Review of Progress in Applied Computational Electromagnetics Conference,  Monterey, CA, 19‑21 Mar 92.

133.          R.L. Haupt, "Scattering from loaded strips," National Radio Science Meeting, Boulder CO, Jan 92.

134.          G.W. Cook, K. Peters, and R.L. Haupt, "A linear phased array antenna simulator in Pascal," 1991 ASEE Conference, New Orleans, LA, Jun 91.

135.          M.C. Heaton, P.J. Joseph, and R.L. Haupt, "Uniform theory of diffraction analysis for conductive strips with constant and tapered resistive loads, " 1991 IEEE AP‑S Symposium, London, Ontario, Jun 91.

136.          R.L. Haupt, "Partial nonuniform spacing of array elements," 1991 IEEE AP‑S Symposium, London, Ontario, Jun 91.

137.          S.E. Haupt, R.L. Haupt and J. Adams, "Multigrid analysis of 4‑point probe measurements of resistive sheets," Fifth Copper Mountain Conference on Multigrid Methods, Copper Mountain, CO,  Apr 91.

138.          R.L. Haupt and S.E. Haupt, "Multigrid with MATLAB," Fifth Copper Mountain Conference on Multigrid Methods, Copper Mountain, CO, Apr 91.

139.          R.L. Haupt, C.J. McCormack, and W.F. Brandow, "Optimizing sidelobe levels of an array using NEC," 7th Annual Review of Progress in Applied Computational Electromagnetics, Monterey, CA, 19‑21 Mar 91.

140.          C.J. McCormack and R.L. Haupt, "Antenna pattern synthesis using partially tapered arrays," IEEE Conference on Electromagnetic Field Computation, Toronto, Ontario, Oct 90.

141.          R.L. Haupt, "Tapered resistive cylindrical parabolic antenna,"  IEEE AP‑S Symposium, Dallas, TX, May 90.

142.          R.L. Haupt, "The law of reflection from strips,"  IEEE AP‑S Symposium, Dallas, TX, May 90.

143.          C.J. McCormack and R.L. Haupt, "Low sidelobe edge tapers for arrays," National Radio Science Meeting, Boulder CO, Jan 90.

144.          S.E. Haupt and R.L. Haupt, "Multigrid analysis of four‑point‑probe measurements of tapered resistive sheets,"  National Radio Science Meeting, Boulder CO, Jan 90.

145.          R.L. Haupt and V.V. Liepa, "Effect of errors in the resistive taper on the far field scattering pattern of a strip," IEEE AP‑S Symposium, San Jose, CA, Jun 89.

146.          R.L. Haupt, "Real‑valued resistive tapers that place nulls in the scattering patterns of strips," National Radio Science Meeting, Boulder, CO, Jan 89.

147.          R.L. Haupt and V.V. Liepa, "Experimental measurement of the scattering patterns of strips," IEEE AP‑S Symposium, Syracuse, NY, 88.

148.          R.L. Haupt and V.V. Liepa, "Resistive tapers that place nulls in the scattering patterns of strips," IEEE AP‑S Symposium, Syracuse, NY, 88.

149.          R.L. Haupt and V.V. Liepa, "Specifying scattering sidelobes for a resistive strip," IEEE AP‑S Symposium, Blacksburg, VA, 87.

150.          R.L. Haupt and V.V. Liepa, "The validity of approximating the current on a strip using physical optics," IEEE AP‑S Symposium, Philadelphia, PA, 86.

151.          R.L. Haupt, "Reducing grating lobes due to subarray amplitude tapering, "IEEE AP‑S Symposium, Vancouver, BC, Canada, 85.

152.          R.L. Haupt and R.A. Shore, "Experimental partially adaptive nulling in a low sidelobe phased array," IEEE AP‑S Symposium, Boston, MA, 84.

153.          R.L. Haupt, "Adaptive nulling in monopulse antennas," IEEE AP‑S Symposium, Boston, MA, 84.

154.          R.L. Haupt and L. Poles, "Performance measurement of a low sidelobe adaptive nulling array," Antenna Measurement Techniques Association Meeting, Annapolis MD, 83.

155.          R.L. Haupt and D. Jacavanco, "Feed error effects of lens performance, "Antenna Applications Symposium, Monticello, IL, 83.

156.          R.L. Haupt, "Nulling with limited degrees of freedom," IEEE Benjamin Franklin Symposium, Philadelphia, PA, 83.

157.          R.L. Haupt and M.J. O'Brien, "Antenna pattern measurements of large aperture, low sidelobe space antennas," Antenna Measurement Techniques Association Meeting, NM, 82.

158.          R.L. Haupt, "Simultaneous nulling in the sum and difference patterns of monopulse radar," Antenna Applications Symposium, Monticello, IL, 82.