A Dual Beam Pattern Reconfigurable Array Antenna for Wlan Application




Antenna reconfigurability features can allow an antenna to make selection and advancement in their operating frequency, polarization, radiation patterns, and gain. The integration of RF switches in the antenna, the reconfigurable antenna allows reconfigurable antenna used in modern wireless applications. In switched-beam reconfigurable antennas, the limitation of conventional antenna which is only able to radiate their radiation pattern at one specific location can be overcome as this type of antenna can switch their main beam at several location by controlling the configuration of their RF switches.

This book describes on the development of a switched-beam reconfigurable antenna by using PIN diodes. There are three phases on developing proposed switched-beam antenna where initiate with development of broad-forward beam printed monopole antenna using FR4 material. Then, the development of patch antenna with defected parabolic ground plane structure has been design in improving the directivity properties of proposed antenna. Lastly, the development of proposed switched-beam reconfigurable antenna where the previous developed antenna will be combined together in array configuration by using parallel strip transmission line technique and implementation of RF switches (PIN diodes) is adapted to transform the proposed antenna into reconfigurable antenna

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