Wearable device

Abstract

A wearable device includes a metal outer casing and a flexible circuit board. The metal outer casing has a notch and a first edge and a second edge located on either side of the notch and facing each other. The flexible circuit board is disposed on an inner surface of the metal outer casing and includes an antenna radiator and a ground radiator. The antenna radiator includes a first end and a second end opposite to each other, the first end being connected to a feed terminal, and the second end extending to the first edge near the notch and connected to the metal outer casing. The ground radiator is located next to the antenna radiator and includes a third end and a fourth end opposite to each other, the fourth end being close to and spaced apart from the first end, the fourth end being connected to a ground terminal, and the third end extending to the second edge near the notch and connected to the metal outer casing.

Claims

1. A wearable device, comprising: A metal exterior component having a notch and a first edge and a second edge located on both sides of the notch and facing each other; The device also includes a flexible circuit board disposed on an inner surface of the metal outer casing and comprising: an antenna radiator including a first end and a second end opposite to each other, wherein the first end is connected to a feed end, and the second end extends to a first edge near the notch and is connected to the metal outer casing; and a ground radiator located next to the antenna radiator and including a third end and a fourth end opposite to each other, wherein the fourth end is close to and spaced apart from the first end, and is connected to a ground end, and the third end extends to a second edge near the notch and is connected to the metal outer casing, wherein the first end, the second end of the antenna radiator, the first edge and the second edge of the metal outer casing, and the third and fourth ends of the ground radiator together form an antenna radiation path.

2. The wearable device as claimed in claim 1, wherein the feed end and the ground end are located at a central position on the metal exterior member facing the notch.

3. The wearable device as claimed in claim 1, wherein the antenna radiation path resonates a frequency band, and the antenna radiation path is one wavelength of the frequency band.

4. The wearable device as claimed in claim 1, wherein the flexible circuit board further includes a matching circuit connected to the feed terminal.

5. The wearable device as claimed in claim 4, wherein the matching circuit includes a first inductor, and the feed terminal is connected in series with the first inductor to the first terminal.

6. The wearable device as claimed in claim 4, wherein the flexible circuit board further includes an antenna chip, the matching circuit includes a second inductor, and the feed terminal is connected in parallel with the second inductor to the fourth terminal.

7. The wearable device as claimed in claim 1, wherein the flexible circuit board further includes an electronic component disposed on the antenna radiator or the ground radiator.

8. The wearable device as claimed in claim 1, wherein the flexible circuit board further includes an electronic component disposed adjacent to and spaced apart from the antenna radiator and the ground radiator.

9. The wearable device as claimed in claim 6 or 7, wherein the electronic component includes a battery, a sensor, or a controller.

10. The wearable device as claimed in claim 1 further includes an insulating member, the flexible circuit board being disposed between the metal outer member and the insulating member.

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