High gain broadband antenna and communication device

The utility model discloses a high-gain broadband antenna and communication equipment. The high-gain broadband antenna comprises an upper antenna unit and a lower antenna unit which are located on the same straight line and share the same polarization axis, the working frequency bands of the upper antenna unit and the lower antenna unit are different, and a duplexer is arranged between the upper antenna unit and the lower antenna unit; the first coaxial line penetrates through the interior of the lower antenna unit from a feed port located at the lower end of the lower antenna unit to be connected to the duplexer, an inner conductor of the first coaxial line is connected with the feed port and a combining port of the duplexer, and an outer conductor of the first coaxial line is connected with a first branching port of the duplexer; the upper antenna unit feeds through a second shunt port of the duplexer; the lower antenna unit comprises a lower antenna upper radiator and a lower antenna lower radiator, and th