Dual-Band Antenna and Wireless Communications Device

A wireless communications device, comprising:

• a dual-band antenna;
• a first radio frequency circuit whose operating frequency band is a first frequency band;
• and
• a second radio frequency circuit whose operating frequency band is a second frequency band,
• wherein the dual-band antenna comprises a first antenna arranged on a first printed circuit board (PCB), a second antenna arranged on a second PCB, and a reflection panel,
• the first radio frequency circuit is connected to the first antenna,
• the second radio frequency circuit is connected to the second antenna,
• an operating frequency band of the first antenna is the first frequency band, an operating frequency band of the second antenna is the second frequency band, and the first frequency band is higher than the second frequency band,
• the second PCB is disposed between the first PCB and the reflection panel, and
• the reflection panel comprises an artificial magnetic conductor, a resonant frequency band of the artificial magnetic conductor comprises the second frequency band, and the first frequency band is outside the resonant frequency band.