The invention relates to a wide-frequency-band common-
caliber base station antenna array based on a composite wave-transparent structure, and belongs to the field of
base station array antennas in the mobile communication technology. Comprising a low-frequency antenna, a high-frequency antenna and a
metal floor, the low-frequency antenna is located above the high-frequency antenna, and the
orthographic projection of the low-frequency antenna and the
orthographic projection of the high-frequency antenna are partially or completely overlapped on the
metal floor; the low-frequency antenna is composed of three
layers of composite wave-transparent structures, and when high-frequency electromagnetic
waves irradiate the composite wave-transparent structures of the low-frequency antenna, the composite wave-transparent structures are excited to form a mixed wave-transparent structure; two or more
resonance points can be introduced into the mixed wave-transparent structure, so that a
broadband transmission window is further introduced, and the
shielding effect on a high-frequency antenna caused by a low-frequency antenna is inhibited. The
broadband common-
caliber base station array antenna can work in two
broadband working frequency bands, unit directional diagrams of the two frequency bands in the array are kept stable, and the broadband common-
caliber base
station array antenna has the advantages of being simple in structure, easy and convenient to design, capable of achieving array arrangement conveniently, low in interference and the like.