0000000000240419

AUTHOR

N. Herscovici

showing 2 related works from this author

Miniaturization of rectangular microstrip patches using genetic algorithms

2002

This paper presents a new procedure for the miniaturization of rectangular microstrip patches based on genetic algorithms. The shape of a typical rectangular patch is modified in order to reduce its resonance frequency keeping the physical volume of the antenna constant. As an example, the resonance frequency of a square microstrip patch is reduced from 3 to 1.8 GHz. The patch is divided in 9/spl times/9 square cells. The genetic algorithm optimization procedure is subsequently used to remove some of the metallic cells. To validate the procedure an antenna prototype has been fabricated and tested. Good agreement is obtained between theoretical and experimental results.

Patch antennaEngineeringbusiness.industryAcousticsResonanceSquare (algebra)MicrostripMicrostrip antennaElectronic engineeringMiniaturizationElectrical and Electronic EngineeringAntenna (radio)businessConstant (mathematics)IEEE Antennas and Wireless Propagation Letters
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Minimization of a rectangular patch using genetic algorithms

2002

In recent years, the miniaturization of antennas have become more and more important, especially in connection with subscriber transceivers for cellular systems. Due to the multiple scattering environments and the almost indefinable operating scenario, the crosspolarization characteristics of the antenna are less important, however its physical size is critical. The attempts to reduce the physical size of the antenna made in the past, used classical methods, such as embedding the antenna in a dielectric medium of a high permittivity, adding a resistive element in series with the antenna, etc., but little effort was invested in simply generating other geometries, which by their intrinsic pro…

Patch antennaEngineeringReconfigurable antennaDirectional antennabusiness.industryConformal antennaAntenna measurementAstrophysics::Instrumentation and Methods for AstrophysicsElectrical engineeringEvolved antennaMicrostripAntenna efficiencylaw.inventionMicrostrip antennaElectrical lengthlawElectronic engineeringAntenna (radio)businessOmnidirectional antennaComputer Science::Information TheoryIEEE Antennas and Propagation Society International Symposium. 2001 Digest. Held in conjunction with: USNC/URSI National Radio Science Meeting (Cat. No.01CH37229)
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