Sinuous antenna generating dual linear polarization for improving cross polarization isolation characteristics

摘要

According to the present invention, a blade antenna comprises: a VHF antenna arranged on one surface of a substrate which is arranged to be vertical to a lower flat surface and operated in a VHF band; and a UHF antenna arranged on one surface of the substrate and operated in a UHF band. The VHF band antenna includes a plurality of vertical radial elements and a plurality of horizontal radial elements. One of the vertical radial elements is arranged to be spaced apart from the UHF band antenna by more than a regular gap so as to improve null characteristics in a radiation pattern of the VHF antenna.