Wearable electronic device

Patent metadata

Field	Value
Publication number	US-2016261032-A1
Application number	US-201514700151-A
Country	US
Kind code	A1
Filing date	Apr 30, 2015
Priority date	Mar 5, 2015
Publication date	Sep 8, 2016
Grant date	—

Abstract

A wearable electronic device including a metal ring-shaped frame, a conductive film, a grounding element and a signal element is provided. The conductive film is arranged in the metal ring-shaped frame, and the conductive film and the metal ring-shaped frame are spaced apart by a predetermined gap to constitute a resonant cavity. The grounding element is arranged in the metal ring-shaped frame and coupled with the metal ring-shaped frame and the conductive film. The signal element is arranged in the metal ring-shaped frame and coupled between the metal ring-shaped frame and a circuit board. The signal element and grounding element constitute a closed resonant cavity with a specific length therebetween for serving as an antenna of the wearable electronic device.

First claim

What is claimed is:

1 . A wearable electronic device comprising:
a metal ring-shaped frame; a conductive film, arranged in the metal ring-shaped frame, the conductive film and the metal ring-shaped frame are spaced apart by a predetermined gap to constitute a resonance cavity; a grounding element, arranged in the metal ring-shaped frame, and coupled to the metal ring-shaped frame and the conductive film; and a signal element, arranged in the metal ring-shaped frame, and coupled to the metal ring-shaped frame and a circuit board, the grounding element and the signal element constitute a closed resonant cavity with a specific length therebetween for serving as an antenna through the closed resonance cavity.

2 . The wearable electronic device as claimed in claim 1 , further comprising:
a touch panel, arranged in the metal ring-shaped frame, wherein the conductive film is a touch film of the touch panel, and the grounding element is coupled to the metal ring-shaped frame and the touch panel.

3 . The wearable electronic device as claimed in claim 2 , further comprising:
a display panel, arranged in the metal ring-shaped frame, and located on a side of the touch panel, the grounding element is coupled to the metal ring-shaped frame, the touch panel and the display panel.

4 . The wearable electronic device as claimed in claim 1 , wherein the circuit board is arranged in the metal ring-shaped frame, and is arranged with a wireless communication element used to transmit or receive a wireless signal, the signal element is coupled to the circuit board and the metal ring-shaped frame.

5 . The wearable electronic device as claimed in claim 1 , further comprising:
a fixed frame, arranged in the metal ring-shaped frame, and having a conductive pattern, the signal element is coupled to the conductive pattern to constitute a signal feed-in point of the antenna.

6 . The wearable electronic device as claimed in claim 1 , further comprising:
a transparent cover plate, arranged in the metal ring-shaped frame, and covering the conductive film, the grounding element is coupled to the metal ring-shaped frame, the conductive film and the transparent cover plate.

7 . The wearable electronic device as claimed in claim 1 , further comprising:
a base, assembled to the metal ring-shaped frame, and the conductive film, the grounding element and the signal element are located between the base and the metal ring-shaped frame.

8 . The wearable electronic device as claimed in claim 1 , wherein a length of the resonance cavity constituted by the signal element and the grounding element is between 0.5 times to 0.7 times of a wavelength of an operating frequency of the antenna.

9 . The wearable electronic device as claimed in claim 1 , wherein a material of the metal ring-shaped frame comprises stainless steel or aluminium.

10 . The wearable electronic device as claimed in claim 1 , wherein the metal ring-shaped frame is rendered circular, and a diameter thereof is between 37 millimeters to 50 millimeters.

Assignees

• Acer Inc

Inventors

• Chang Yu-Chia
• Lin Hsieh-Chih
• Chiu Pei-Yuan
• Lin Hsien-Chang

Classifications

• G04R60/12

  inside metal cases · CPC title

• H01Q1/273 Primary

  Adaptation for carrying or wearing by persons or animals · CPC title

• H01Q13/18

  the slot being backed by, or formed in boundary wall of, a resonant cavity (longitudinally slotted cylinder H01Q13/12 ){; Open cavity antennas} · CPC title

• H01Q1/44

  using equipment having another main function to serve additionally as an antenna {, e.g. means for giving an antenna an aesthetic aspect}(H01Q1/27 - H01Q1/34 take precedence) · CPC title

• G04G21/04

  using radio waves (radio-controlled time-pieces G04R) · CPC title