Simulation of a Conformal Reconfigurable Fractal Tree Antenna with Adaptive Multi Beam and Frequency Characteristics

This paper presents the design and the analysis of a conformal fractal tree reconfigurable antenna having adaptive multi beam radiation patterns and adaptive operation frequency characteristics. The proposed antenna covers some service bands such as: WiMAX (2.400-2.483) GHz, m-WiMAX (3.4-3.6) GHz and WLAN (5.15-5.825) GHz and operates some other frequencies between 2.24 GHz to 9.87 GHz. The designed antenna is reconfigured by using PIN diode switches. For biasing the diodes, influences on the antenna characteristics is presented in the results. The optimization in biasing and integration of these switches into the antenna is also discussed.