Method and equipment for controlling radiation direction of small sector antenna

The invention is in the radial direction control of the small sector antenna to be applied to a small radio transmission apparatus having a limited power and computation power, needs a simple computing power or without the computational power requires little, while consuming lower power operation relates to a radial control apparatus and method for a possible small sector antenna, once the response is commonly connected to the parasitic element and having a plurality of capacitance block consisting of a plurality of capacitors having different capacitances, a plurality of the switching unit and a control unit the via, to a connection by selecting a capacitor having a capacitance corresponding to the radial direction by the parasitic elements, so that control can be simplified and, reduce the power consumption for the radial control. Wireless Sensor Networks (WSN), a directional antenna, the radiation direction, a switch, a capacitor