Abstract
In recent times, reconfigurable antennas become essential components of communication and radar systems because of their capability to adapt to changing system requirements or environmental conditions. Reconfigurability is a factor that changes the characteristics of a particular antenna for obtaining additional functionalities for any system. These antennas are low profile and low priced resulting in a good performance. Moreover, one single antenna can deliver the same purpose of more than one traditional single functionality antenna. Mainly reconfigurable antennas possess the ability to change the properties of antenna such as polarization, pattern, and frequency dynamically. The proposed antenna design is desirable for emerging wireless communication systems. The design consists of a rectangular patch. L-shaped stubs are used between patch and ground using PIN diodes as switches. By changing the states of PIN diode switches, an antenna can be made reconfigurable. The substrate used is FR4 having 1.6 mm thickness and a 4.4 dielectric constant. This antenna is analyzed using HFSS 15.0 simulation software. The proposed structure can produce all three reconfiguration properties.
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