Wireless Device
The present invention discloses a wireless device, which includes a substrate and an antenna. The antenna includes a printed antenna element and a 3-dimensional antenna element. The printed antenna element is printed on the substrate, while the 3-dimensional antenna element is disposed on the substrate and coupled to the printed antenna element. The printed antenna element and the 3-dimensional antenna element jointly have a physical length of a desired frequency.
1 . A wireless device, comprising:
a substrate comprising an upper surface and a side surface adjacent to the upper surface, wherein the side surface has at least one groove;
an antenna comprising:
a printed antenna element, printed on the upper surface of the substrate; and
a 3-dimensional antenna element, disposed on the substrate and coupled to the printed antenna element, wherein the radiation section of the 3-dimensional antenna element is a folded metal sheet, and at least one section of the folded metal sheet is clipped in the at least one groove, and the printed antenna element and the 3-dimensional antenna element jointly have a physical length corresponding to a desired frequency.
2 . The wireless device of claim 1 , further comprising:
a ground plane, formed in the upper surface of the substrate.
3 . The wireless device of claim 2 , wherein the printed antenna element further comprises:
a short port, for coupling the antenna to the ground plane; and
a feed-in port, for feeding RF signals to the antenna.
4 . The wireless device of claim 1 , wherein the printed antenna element is a straight trace.
5 . The wireless device of claim 1 , wherein the radiation section of the 3-dimensional antenna element extends to the outside of the substrate from the groove along a direction perpendicular to the substrate.
6 . The wireless device of claim 1 further comprising:
a housing, for containing the substrate and the antenna;
wherein the 3-dimensional antenna element is folded vertically across the substrate.
7 . The wireless device of claim 1 , further comprising a circuit for generating a signal.
8 . The wireless device of claim 7 , wherein the circuit is a Wi-Fi circuit or a Bluetooth (BT) circuit.
9 . A wireless device, comprising:
a substrate comprising an upper surface and a side surface adjacent to the upper surface, wherein the side surface has at least one groove;
an antenna comprising:
a printed antenna element, printed on the upper surface of the substrate; and
a 3-dimensional antenna element, disposed on the substrate and coupled to the printed antenna element, wherein the radiation section of the 3-dimensional antenna element is a metal sheet, and at least one section of the metal sheet is clipped in the at least one groove, and the printed antenna element and the 3-dimensional antenna element jointly have a physical length corresponding to a desired frequency.
10 . The wireless device of claim 9 , wherein the radiation section of the 3-dimensional antenna element extends to the outside of the substrate from the groove along a direction perpendicular to the substrate.
11 . A wireless device, comprising:
a substrate comprising an upper surface and a side surface adjacent to the upper surface, wherein the side surface has at least one groove;
an antenna comprising:
a printed antenna element, printed on the upper surface of the substrate; and
a 3-dimensional antenna element, disposed on the substrate and coupled to the printed antenna element, wherein at least one section of the radiation section of the 3-dimensional antenna element is clipped in the at least one groove, and the printed antenna element and the 3-dimensional antenna element jointly have a physical length corresponding to a desired frequency.