Patent ID: 8659492
Filing Date: 2014-02-25
Classification: H01Q

Abstract:
1. A multiband antenna, comprising: a feed unit; a transceiving unit, the transceiving unit including a first transceiving portion, a second transceiving portion, and a third transceiving portion; the first transceiving portion connected to the feed unit, the second transceiving portion and the third transceiving portion connected to the first transceiving portion; and a resonance unit positioned adjacent to but separate from the feed unit and the transceiving unit, the resonance unit including a first resonance portion and a second resonance portion connected to the first resonance portion; wherein when feed signals are input to the feed unit, the feed signals are respectively transmitted to the first transceiving portion, the second transceiving portion, and the third transceiving portion to form current paths of different lengths, and the resonance unit is driven to resonate and respectively generates additional current paths of different lengths in the first resonance portion and the second resonance portion, such that the first transceiving portion the second transceiving portion, the third transceiving portion, the first resonance portion, and the second resonance portion are enabled to respectively receive and send wireless signals of different frequencies, and thus the multiband antenna is capable of receiving and sending wireless signals in more than two frequency bands; and wherein the first transceiving portion includes a first transceiving section, a second transceiving section, a third transceiving section, and a fourth transceiving section, which are all longitudinal planar sheets and positioned coplanar with each other; one end of the first transceiving section connected to the feed unit, the other end of the first transceiving section connected to one side of one end of the second transceiving section, a side of the other end of the second transceiving section connected to the third transceiving section, such that the third transceiving section and the first transceiving section are respectively positioned at two opposite sides of the second transceiving section; the fourth transceiving section positioned at the same side of the second transceiving section as the first transceiving section, one end of the fourth transceiving section connected to the second transceiving section, the feed unit is a planar sheet positioned in a plane that is perpendicular to the plane in which the first transceiving section, the second transceiving section, the third transceiving section, and the fourth transceiving section are positioned, the first transceiving portion further includes an extending portion, the extending portion being a longitudinal planar sheet positioned coplanar with the feed unit and connected to the other end of the fourth transceiving section, the second transceiving portion is connected to the fourth transceiving section, and the first transceiving section and the second transceiving portion are respectively positioned at two opposite sides of the fourth transceiving section; and wherein the second transceiving portion includes a first inductor, a sixth transceiving section, a seventh transceiving section, an eighth transceiving section, and a ninth transceiving section, which are all planar sheets; the first inductor, the sixth transceiving section, and the seventh transceiving section positioned coplanar with the first transceiving section, the second transceiving section, the third transceiving section, and the fourth transceiving section; and the eighth transceiving section and the ninth transceiving section positioned in a plane that is parallel to the plane in which the feed unit is positioned.