Title:
OPTIMAL DESIGN OF ANTENNAS USING GENETIC ALGORITHMS AND FAST INTEGRAL EQUATION TECHNIQUES
Document Type and Number:
WIPO Patent Application WO2002003495
Kind Code:
A3
Abstract:
Cage antennas (fig. 302a) 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 is replaced by a normal mode quadrifilar helix for height reduction and the parasitics are re-optimized.
Inventors:
BUTLER CHALMERS M
ROGERS SHAWN D
ROGERS SHAWN D
Application Number:
PCT/US2001/020853
Publication Date:
June 20, 2002
Filing Date:
June 29, 2001
Export Citation:
Assignee:
UNIV CLEMSON (US)
International Classes:
H01Q1/36; (IPC1-7): G06G7/48; G06G7/56
Other References:
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, vol. 46, no. 6, June 1998 (1998-06-01), pages 788 - 793, XP000766088
ALTMAN ET AL.: "New designs of ultra wide-band communication antennas using a genetic algorithm", IEEE TRANS. ANTENNAS AND PROPAGATION, vol. 45, no. 10, October 1997 (1997-10-01), pages 1494 - 1501, XP000702480
JOHNSON ET AL.: "Genetic algorithms in engineering electromagnetics", IEEE ANTENNAS AND PROPAGATION MAGAZINE, vol. 39, no. 4, August 1997 (1997-08-01), pages 7 - 21, XP002908401
ALTMAN ET AL.: "New designs of ultra wide-band communication antennas using a genetic algorithm", IEEE TRANS. ANTENNAS AND PROPAGATION, vol. 45, no. 10, October 1997 (1997-10-01), pages 1494 - 1501, XP000702480
JOHNSON ET AL.: "Genetic algorithms in engineering electromagnetics", IEEE ANTENNAS AND PROPAGATION MAGAZINE, vol. 39, no. 4, August 1997 (1997-08-01), pages 7 - 21, XP002908401
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