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Abstract |
In this paper, two microstrip-fed printed slot antennas have been introduced to
be used in modern communication systems, as alternatives for conventional
Hilbert slot antenna. The slot structures of the proposed antennas are in the
form of the 3rd iteration of two variants of the conventional Hilbert
space-filling curves. These antennas are fed with 50 Ω microstrip line printed
on the reverse side of the slot structure. The proposed antennas have been
modelled and analyzed using the method of moments (MoM) based commercially
available software, IE3D from Zeland Software Inc,. Simulation results show that
all these antennas possess a multi-resonant behavior with a miniature size of
about half the guided wavelength. It has been found that the fundamental
resonance depends on the external side length of the slot structure, while
higher mode resonances are attributed by the smaller self-similar structures the
slot pattern contains. Furthermore, amongst the proposed antennas, the antenna
with slot structure based on Moore’s space-filling curve, which is a closed
version of Hilbert curve, has been found to offer a multiband behavior with
enhanced bandwidths around the multiple resonances as compared with the other
two antennas based on other Hilbert space-filling variants.. Copyright © 2010
Praise Worthy Prize S.r.l. - All rights reserved. |
