Wearable device and antenna thereof
An antenna of a wearable device includes a metal bottom housing of the wearable device, a printed circuit board, a metal middle housing that encircles the printed circuit board, and a communications circuit set on the printed circuit board. A slot exists between the metal middle housing and the metal bottom housing. The metal middle housing is connected to the metal bottom housing using a second connecting wire. The metal middle housing and the printed circuit board jointly serve as a ground plate. An antenna feed line is used to connect the metal bottom housing and the communications circuit module. The metal bottom housing serves as an antenna radiation body.
1. An antenna of a wearable device, comprising:
a printed circuit board;
a metal bottom housing coupled to the printed circuit board and configured to serve as an antenna radiation body;
an antenna feed line configured to couple the metal bottom housing and a communications circuit disposed on the printed circuit board;
a metal middle housing encircling the printed circuit board and electrically coupled to the printed circuit board, the metal middle housing and the printed circuit board being configured to jointly serve as a ground plate; and the metal middle housing being further coupled to the metal bottom housing using a first connecting wire;
a slot existing between the metal middle housing and the metal bottom housing; and
a slot antenna being formed by the metal middle housing, the metal bottom housing, and the slot between the metal middle housing and the metal bottom housing.
2. The antenna of claim 1 , wherein the metal middle housing is electrically coupled to the printed circuit board using at least one second connecting wire.
3. The antenna of claim 2 , wherein the printed circuit board comprises a circular plate.
4. The antenna of claim 1 , wherein an insulation plate is disposed inside the slot.
5. The antenna of claim 1 , wherein the antenna is configured to support a full spectrum of Long Term Evolution (LTE), BLUETOOTH, a wireless local area network, and a global positioning system.
6. The antenna of claim 1 , wherein one electrical coupling point exists between the metal middle housing and the metal bottom housing.
7. The antenna of claim 1 , wherein a plurality of electrical coupling points exists between the metal middle housing and the metal bottom housing.
8. A wearable device, comprising:
a metal middle housing;
a display disposed on a top of the metal middle housing;
a printed circuit board disposed in the metal middle housing;
a metal bottom housing stacked with the metal middle housing and configured to serve as an antenna radiation body;
an antenna feed line configured to couple the metal bottom housing and a communications circuit disposed on the printed circuit board, the metal middle housing being electrically coupled to the printed circuit board, the metal middle housing and the printed circuit board being configured to jointly serve as a ground plate, and the metal middle housing being further coupled to the metal bottom housing using a first connecting wire; and
a slot antenna being formed by the metal middle housing, the metal bottom housing, and a slot between the metal middle housing and the metal bottom housing.
9. The wearable device of claim 8 , wherein the metal middle housing is electrically coupled to the printed circuit board using at least one second connecting wire.
10. The wearable device of claim 9 , wherein the printed circuit board comprises a circular plate.
11. The wearable device of claim 8 , wherein an insulation plate is disposed inside the slot.