A pattern-reconfigurable parasitic patch antenna using BAR and HPND PIN Diode

A pattern reconfigurable parasitic patch antenna using BAR and HPND PIN Diode is proposed. With parasitic element and mutual coupling technique, the presented antenna achieved beam switching at five phi of 0°, 45°, 135°, 225° and 315°. This is realized by four parasitic element surrounded a driven element. Each of the parasitic is shorted to the ground via a shorting pin. The ON and OFF state condition is control by the PIN Diode switch that embed to each parasitic element. This research studies the performance of different PIN Diode of BAR-5002v and HPND-4005 in realizing the beam switching application.