| 摘要 |
A dual-band mobile communication device includes a ground plane and an antenna. The antenna is located on a dielectric substrate and includes a feeding portion and a shorted radiating portion. One end of the feeding portion is a feeding point of the antenna. The A length of the shorted radiating portion is at least twice that of the feeding portion. One A first end of the shorted radiating portion, electrically connected to the ground plane, is a shorting end, and the other second end of the shorted radiating portion is an open end. The shorted radiating portion includes multiple bendings which form multiple fractional sections, wherein the open end of the shorted radiating portion extends toward a first fractional section of the shorting end of the shorted radiating portion. A coupling gap is existed between a second fractional section of the open end of the shorted radiating portion and the feeding portion.
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