GENERALIZED DESIGN OF MULTI-RESONANT DIPOLE ANTENNAS USING KOCH CURVES
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GENERALIZED DESIGN OF MULTI-RESONANT DIPOLE ANTENNAS USING KOCH CURVESAbstract
Generalizations of fractal Koch curves and their use in designing multi-resonant antennas are presented in this paper. Both recursive and non-recursive generalizations of the curve are examined. Variation of the indentation angle is used for this approach. Although this variation has a direct bearing on the unfolded length of the curve, this should be considered as a primary variable since several geometries with the same unfolded length can be constructed with different permutations of indentation angles. Antenna input characteristics such as the primary resonant frequency, the input resistance at this resonance, and ratios of the first few resonant frequencies have been studied by numerical simulations. This study shows that it is possible to design multiresonant antennas using Koch curves with various indentation angles. Identifying similar parameters with other known fractal geometries would offer a viable route for designing multiband and multifunctional antennas for modern wireless applications using them.
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