Multiband Fractal Antennas and Arrays
Antennas and antenna arrays are essentially narrowband devices. Their characteristic size determines their operating wavelength. Fractal structures, having no characteristic size and a multiscale self-similar shape, are suggested for the design of multifrequency antennas and arrays. The multiband properties of some fractal arrays and array factors are presented here. Experimental results on multiband fractal antennas are described as well. Fractal antennas are shown to display a multiband behavior from both the return-loss and radiation pattern points of view.
KeywordsRadiation Pattern Sierpinski Gasket Array Factor Koch Curve Fractal Antenna
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