This application provides a dual-band antenna, a wireless local area network device, and a method for manufacturing a dual-band antenna. The dual-band antenna includes a conductive plane, a smooth curved-surface assembly that is joined onto the conductive plane, and a feed pin that is connected to the smooth curved-surface assembly. The conductive plane is configured to function as a first antenna, for receiving and sending a radio frequency signal of a first frequency band; and the smooth curved-surface assembly is configured to function as a second antenna, for receiving and sending a radio frequency signal of a second frequency band. In this solution, a curved surface of a surface of the curved-surface assembly that is used as the second antenna transits smoothly. Therefore, a current is distributed relatively evenly, and radiation efficiency is relatively high.
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