| 摘要 |
A multi-band antenna comprises an enclosed metal frame 1, a PCB 2, a grounding element 3, a metal edge bonding element 4, an antenna bracket 5 and an antenna radiator 6. Copper laid areas of the grounding element 3 and the PCB 2 are connected to the antenna radiator 6. The metal edge bonding element 4 is connected to the enclosed metal frame 1 and the antenna radiator 6. The antenna bracket 5 is fixed in a clearance area of the PCB 2. The antenna radiator 6 is disposed on the antenna bracket 5. The antenna radiator 6 comprises an antenna body 61 and a feed point 62 connected to the antenna body 61. The antenna body 61 comprises a high-frequency radiating portion 611, a low-frequency radiating portion 612, and a radiating wall 613. The high-frequency radiating portion 611 and the low-frequency radiating portion 612 are respectively coupled to the enclosed metal frame 1, the radiating wall 613 is disposed on the PCB 2, and the feed point 62 is connected to a microstrip feed network on the PCB 2. This solution improves the performance and the broadband efficiency of the antenna without opening a groove in the metal frame. |
