Data processing: structural design – modeling – simulation – and em – Modeling by mathematical expression
Reexamination Certificate
2006-11-07
2006-11-07
Rodriguez, Paul L. (Department: 2123)
Data processing: structural design, modeling, simulation, and em
Modeling by mathematical expression
C343S702000, C343S753000, C343S7000MS, C343S790000, C343S895000, C343S864000, C343S846000
Reexamination Certificate
active
07133810
ABSTRACT:
A method for applying an algorithm to facilitate the design of wideband omnidirectional antennas, and the design of sleeve cage monopole and sleeve helix units includes rapid resolution of a complex relationship among antenna components to yield an optimal system. A genetic algorithm is used with fitness values for design factors expressed in terms to yield optimum combinations. Cage antennas are optimized via a genetic algorithm for operation over a wide band with low VSWR. Genetic algorithms and an integral equation solver are employed to determine the position and lengths of parasitic wires around a cage antenna in order to minimize VSWR over a band. The cage may be replaced by a normal mode quadrifilar helix for height reduction and with re-optimized parasites.
REFERENCES:
patent: 3790943 (1974-02-01), Pickles et al.
patent: 6034648 (2000-03-01), Hope
patent: 6118406 (2000-09-01), Josypenko
patent: 6169523 (2001-01-01), Ploussios
patent: 6173191 (2001-01-01), Jennings, III
patent: 6222494 (2001-04-01), Erkocevic
patent: 6249256 (2001-06-01), Luxon et al.
patent: 6317092 (2001-11-01), de Schweinitz et al.
patent: 6320550 (2001-11-01), Van Voorhies
patent: 6323809 (2001-11-01), Maloney et al.
patent: 6344833 (2002-02-01), Lin et al.
patent: 6346916 (2002-02-01), Odachi et al.
patent: 6407705 (2002-06-01), Sanad
patent: 6424309 (2002-07-01), Johnston et al.
patent: 6606051 (2003-08-01), Fullerton et al.
patent: 6624794 (2003-09-01), Wendt et al.
patent: 6639555 (2003-10-01), Kane et al.
patent: 6765541 (2004-07-01), Josypenko
patent: 2003/0076276 (2003-04-01), Church et al.
patent: 2003/0103011 (2003-06-01), Rogers et al.
Boag et al., “Design of electrically loaded wire antennas using Genetic algorithm”, IEEE 1996.
Nakano, et al. Realization of Dual-Frequency and Wide-Band VSWR Performances using Normal-Mode Helical and Inverted-F Antennas. IEEE Trans. Antennas and Propagation. Jun. 1998. vol. 46. No. 6. Entire document. (Cited in above-referenced PCT International Search Report).
Altman, et al. New Designs of Ultra Wide-Band Communication Antennas using a Genetic Algorithm. IEEE Trans. Antennas and Propagation. Oct. 1997. vol. 45. No. 10. Entire document (Cited in above-referenced PCT International Search Report).
Johnson, et al. Genetic Algorithms in Engineering Electromagnetics. IEEE Antennas and Propagation Magazine. Aug. 1997. vol. 39. No. 4. Entire document. (Cited in above-referenced PCT International Search Report).
David L. Carroll/University of Illinois at Urbana. Chemical Laser Modeling With Genetic Algorithms. AIAA Journal. Feb. 1996, vol. 34, No. 2.
Shawn D. Rogers, et al./Department of Electrical and Computer Engineering/Clemson University. An Efficient Curved-Wire Integral Equation Solution Technique. IEEE Trans. Antennas Propagat.
Shawn David Rogers,Efficient Numerical Techniques For Curved Wires, A Thesis Presented to the Graduate School of Clemson University, Aug. 1997.
M. Ali, S.S. Stuchly, and K. Caputa,Characteristics of bent wire antennas, Journal of Electromagnetic Waves and Applications, vol. 9, No. 9, 1149-1162, 1995.
H. Nakano,Helical and Spiral Antennas, Chapter 6—Helical Antenna of Endfire Mode*, John Wiley & Sons, Inc., New York, pp. 122-126, 1987.
Nathan J. Champagne, II,Method Of Moments Formulations For Think Wire Antennas And Scatters Using Piecewise Linear And Curved Wire Segments, M.S.E.E., A Thesis Presented to The Faculty of the Department of Electrical Engineering, University of Houston, Houston, TX, Aug. 1991.
Butler Chalmers M.
Rogers Shawn D.
Clemson University
Dority & Manning P.A.
Rodriguez Paul L.
Thangavelu Kandasamy
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