SECTOR ZONE ANTENNA CONSTITUTION SYSTEM

摘要

PURPOSE:To realize the sector zone antenna constitution system suitable for a sector zone capable of setting an optimum beam tilting angle so as to obtain sufficient interference reduction effect when base station are arranged irregularly. CONSTITUTION:The constitution method of a sector zone decides the number of sectors to be divided in the sector zone, and plural directivity antennas 10-12 having tilting angle adjustment phase cables 13-15 to set a beam tilting angle independently of each different direction in the same sector zone, are used and the plural directivity antennas 10-12 are combined.