ANTENNA WITH SELECTIVE NOTCH CHARCTERISTIC

摘要

PURPOSE: An antenna is provided to selectively activate a notch property in a specific frequency band by turning on/off at least one switch. CONSTITUTION: A radiator(110) is formed on a substrate(100). A first slot(120) is formed on the radiator to implement a notch property in a first frequency band. A second slot(130) is formed on the radiator to implement a notch property in a second frequency band. A first switch(140) is formed on the first slot to determine the activation of the notch property in the first frequency band. A second switch(150) is formed on the second slot to determine the activation of the notch property in the second frequency band. The first and second switches are turned on/off according to a DC bias. A first DC block is extended from both sides of the first slot. A second DC block is extended from both sides of the second slot.