| 摘要 |
A portable electronic device includes a metallic casing, a circuit board, a feeding line, and a grounding line. The metallic casing confines an accommodating space, and is formed with a slot that is in spatial communication with the accommodating space and that is defined by a slot-defining wall. The circuit board is disposed in the accommodating space, and is provided with feeding and grounding ports. The feeding line serves to couple electrically the feeding port to the slot-defining wall. The grounding line serves to couple electrically the grounding port to the slot-defining wall.
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