fractal antenna multiband charac

is there any calculation to determine the multiband freq of certain antenna. u can giv any fractal antenna in this instant

If you want a fractal multiband antenna you should work with the Sierpinski gasket, other fractal antennas (koch or minkowski) are NOT multi band antennas, they simply have multiple resonance but their radiation patterns at those frecuencies are very different so they cant be cosiderd as multi-band.

If you want some more info on the sierpinski fractal multiband antenna this paper should help:

http://www.antlab.ee.ucla.edu/~johng...als/puente.pdf