| 摘要 |
A multi-band antenna has a ground portion, a first radiating portion defining opposite first and second ends, a L-shaped radiating portion connected to the second end of the first radiating portion and defining a third end extending towards the ground portion and a fourth end extending towards a direction, a stair-shaped radiating portion located between the ground portion and the L-shaped radiating portion and defining a fifth end connected to the first end of the first radiating portion and a sixth end extending towards the direction, and having at least one bent section, which has at least one bent section, a connecting portion interconnecting the bent section of the fourth radiating portion and the ground portion, and a feeding point arranged at the first end of the first radiating portion.
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