| 摘要 |
An antenna includes a circuit board, a primary antenna, a secondary antenna, and a feeder. The primary antenna is n-shaped and consists of a first middle section, and a first subsection and a second subsection which are connected to the first middle section. The first subsection and the second subsection have different lengths, the first subsection has a first feed point. The secondary antenna has a second feed point which is connected therewith. The primary antenna and the secondary antenna are disposed on the circuit board, and the feeder feeds an electrical signal to the first feed point and the second feed point.
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