A novel Reconfigurable Coplanar waveguide (CPW) fed T- shaped patch
Antenna with frequency diversity is designed and analyzed. The
basic antenna consists of two H-shaped patch connected to the
radiating element, which is connected with a CPW feed. The
reconfigurability in frequency is obtained by connecting MEMS
switches in the basic antenna. MEMS switches are used because of
their significant RF characteristics, fast switching speed and less
power consumption. The switch is connected between the radiating
element and the right-hand side H-shaped patch. By controlling
(making ON and OFF) the switches, the antenna is made to operate at
two different resonant frequencies namely 2.4GHz and 4.4GHz. Hence
the antenna is reconfigured to use for two different applications.
The designed antenna and simulated results are obtained by using
Zeland's Method of Moments based commercial IE3D simulator. The
return loss curves, radiation patterns, antenna gain and
efficiencies, VSWR curves for different switch configurations are
obtained using IE3D software. This antenna is found suitable for
wireless communication application such as W-LAN and C-Band
applications.
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