TRIPOLE ANTENNA SYSTEM FOR VARYING WIDTH, GAIN AND TILT OF ANTENNA RADIATION PATTERN AND METHOD FOR CONTROLLING TRIPOLE ANTENNA SYSTEM USING THE SAME

摘要

PURPOSE: A tripole antenna system and a method controlling the same are provided to reduce the length of the antenna by arranging receiving and transmitting antenna element columns in a horizontally parallel direction, while varying characteristics of antenna even without replacing the antenna. CONSTITUTION: A tripole antenna system comprises antenna element columns(21,22,23) each of which has a plurality of antenna elements arranged in a line, wherein the antenna element columns are arranged in the vicinity of each other in a horizontal direction; antenna feed lines connected to each of antenna elements of antenna element columns; a plurality of dielectrics superimposed on the antenna feed lines; and an antenna driving unit for adjusting characteristics of vertical beam of radiation pattern transmitted/received from/at the antenna element by varying the superimposed areas of the dielectrics and antenna feed lines.