Patent ID: 7990321

Claim:
A multiband antenna, comprising: a first radiator configured for transmitting electromagnetic signals in at least two frequency bands; a second radiator connected to and arranged so as to surround the first radiator, the second radiator configured for transmitting electromagnetic signals in a frequency band that is different from frequencies in the at least two frequency bands; a feeding portion electrically connected to both the first radiator and the second radiator, the feeding portion configured for feeding the electromagnetic signals to the first radiator and the second radiator; a grounding portion; and a third radiator located between the grounding portion and the second radiator and electrically connected to the grounding portion, the third radiator configured for coupling to the first radiator and the second radiator, transmitting a part of the electromagnetic signals to the first radiator and the second radiator, and coupling the first radiator and the second radiator to the grounding portion.