Fitness Function Calculation Technique in Yagi-Uda Antennas Evolutionary Design

Yagi-Uda antennas is the one of most simple type of wire antennas in different applications. A design of these antennas turned of to be the complex problem. It is connected with complexity of definition of current distributions on antenna's vibrators. This currents distribution can be used for...

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Bibliographic Details
Main Authors: Sorokin, Sergey N, Savelyev, Vladimir V, Ivanchenko, Elena V, Oleynik, Maxim P
Format: Report
Language:English
Subjects:
ANTENNA COMPONENTS
ANTENNA RADIATION PATTERNS
COMPONENT REPORT
ELECTRIC CURRENT
Electrical and Electronic Equipment
FOREIGN REPORTS
HARMONICS
INTEGRAL EQUATIONS
Numerical Mathematics
PROCEEDINGS
Radiofrequency Wave Propagation
RUSSIA
VIBRATORS(ELECTRICAL)
YAGI ANTENNAS
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Summary:Yagi-Uda antennas is the one of most simple type of wire antennas in different applications. A design of these antennas turned of to be the complex problem. It is connected with complexity of definition of current distributions on antenna's vibrators. This currents distribution can be used for account of external and internal antenna parameters. These parameters are used for fitness function calculation, which allowing finding the optimum decision of designing problem. The chosen fitness function should include both external, and internal antennas parameters. Hallen's integral equation application for current distribution definition on Yagi-Uda antennas vibrators is considered in this paper. It is shown, that the examination of frequency dependencies of input resistance and currents amplitudes distributions can in addition simplify a design of the antenna. Presented at International Conference on Mathematical Methods in Electromagnetic Theory (9th) held in Kiev, Ukraine on 10-13 Sep 2002. This article is from ADA413455 2002 International Conference on Mathematical Methods in Electromagnetic Theory (MMET 02). Volume 2