Base station antenna

A base station antenna, comprising:

• a substrate;
• and
• an antenna sub-array, comprising:
• a feeding plate disposed on the substrate;
• a plurality of radiation units disposed on the feeding plate along a first direction and electrically connected to the feeding plate;
• and
• two metal baffles respectively disposed on two sides of the feeding plate along a second direction perpendicular to the first direction, wherein each of the two metal baffles extends along the first direction, and each of the two metal baffles is provided with an opening slot, and a length of the opening slot of each metal baffle along the first direction corresponds to a wavelength of a center frequency of the base station antenna;
• wherein each of the two metal baffles is provided with a plurality of the opening slots along the first direction, and a distance between two adjacent opening slots is 0.25 times the wavelength of the center frequency of the base station antenna.

A base station antenna, comprising:

• a substrate;
• an antenna sub-array, comprising:
• a feeding plate disposed on the substrate;
• a plurality of radiation units disposed on the feeding plate along a first direction and electrically connected to the feeding plate;
• and
• two metal baffles respectively disposed on two sides of the feeding plate along a second direction perpendicular to the first direction, wherein each of the two metal baffles extends along the first direction, and each of the two metal baffles is provided with an opening slot, and a length of the opening slot of each metal baffle along the first direction corresponds to a wavelength of a center frequency of the base station antenna;
• and
• an isolation component correspondingly disposed on the antenna sub-array and disposed between two adjacent radiation units and between the two metal baffles.