A BROADBAND DUAL-POLARIZED MICROSTRIP ARRAY ANTENNA

摘要

The invention relates to a microstrip array antenna (100), especially a broadband dual-polarized microstrip array antenna having parallel feeding structure which consist of two parts power supplying layers each of which generates its own polarization respectively. This antenna (100) comprises a first film (110), so called "ground", coated with a metal on the upper side of a first film except the inner parts of closed regions (112), multiple of the closed regions arranged in uniform array forms. And the metal coated on the predetermined central regions of the closed regions (112) is removed and patch antenna (114) is formed on the removed central regions of the closed regions (112) and also on the outside region of the closed regions (112) in a first film (110).This arrangement arranges transmission paths for two separate linear polarization on a different layer each other in order to minimize an interference effect and a proximity feeding method and an aperture coupled method are used in order to get two separate polarization.