Abstract |
In this study, a reduced size, low profile multiband printed GCPW-fed monopole
antenna is presented as a candidate for use in multi-functions wireless
communication systems. The proposed fractal antenna structure is based on the
tent transformations. The self-similarity of the resulting monopole antenna
substructures results in a multi-resonant behavior. To provide a wideband
impedance matching and bandwidth enhancement to the antenna performance a
grounded coplanar waveguide (GCPW) feed technique has been used. Theoretical
performance of monopole antennas based on 1st and 2nd iterations of this fractal
geometry has been calculated using a method of moments (MoM) based software,
IE3D, from Zeland Software Inc. Results have shown that the proposed monopole
antenna design possesses a multi-band resonant behavior with adequate radiation
performance with VSWR 2 (return loss -10 dB) throughout the resonating bands. An
attempt has been carried out to correlate the proposed antenna dimensions with
its resonant frequencies, to serve as an approximate aid in the initial design
stage. This makes the presented antenna suitable for use in the modern
multi-functions compact communication systems. |