FDD-TYPE ANTENNA APPARATUS IMPLEMENTING SPATIAL-POLARIZATION SEPARATION OF BEAMS BY USING QUAD-POLARIZED ANTENNA MODULE ARRAY

摘要

Disclosed is an FDD-type antenna apparatus implementing spatial-polarization separation of beams by using a quad-polarized antenna module array. The antenna apparatus comprises: a quad-polarized antenna module array including first radiation elements, second radiation elements, third radiation elements, and fourth radiation elements; a filter unit including first, second, third, and fourth filters for respectively filtering signals in first, second, third, and fourth signal ranges; and a phase setting module for setting phases of the filtered signals such that a first beam and a second beam respectively radiated through the first and second radiation elements and the third and fourth radiation elements can be spatially separated, wherein the first beam and the second beam have different polarized directions from each other.