INVERTED L-TYPE ANTENNA HAVING ELLIPTICAL CONE MONOPOLE CAPABLE OF IMPROVING WIDEBAND CHARACTERISTICS

摘要

PURPOSE: An inverted L-type antenna is provided to reduce the space occupied by the antenna and achieve improved wideband characteristics by using an elliptical conical board and vertical and horizontal elements. CONSTITUTION: An inverted L-type antenna comprises a conical board(33) formed into an elliptical shape by a plurality of conical wires; a grounding plate(34) disposed at the apex of the conical board, and mounted on a movable body; and a radiation element inserted in an inverted L-shape to the center of the conical wire. The radiation element includes a vertical element(31) and a horizontal element(32).