The multiband properties of self-similar fractals can be advantageously exp
loited to design multiband frequency selective surfaces (FSS). A Sierpinski
dipole FSS has been analyzed and measured and the results show an interest
ing dual-band behavior, Furthermore a near-field measurement technique is a
pplied to characterize the FSS response to different angles of incidence. F
inally, it will be shown that it is possible to tune the FSS response by pr
operly perturbating the geometry of the Sierpinski dipole.