Mobile communication device and method for manufacturing same

Patent metadata

Field	Value
Publication number	US-2016134010-A1
Application number	US-201514613811-A
Country	US
Kind code	A1
Filing date	Feb 4, 2015
Priority date	Nov 12, 2014
Publication date	May 12, 2016
Grant date	—

Abstract

A mobile communication device includes a metallic rear cover, a circuit board arranged within the rear cover and an antenna, the antenna including a radiation source connecting to the metallic rear cover and a circuitry portion on the circuit board, the circuitry portion including a feed portion connecting to the radiation source, a grounding portion, and a controlling circuitry for controlling the grounding portion to connect or disconnect to the radiation source. A corresponding method for manufacturing the mobile communication device is also presented.

First claim

What is claimed is:

1 . A mobile communication device, comprising:
a metallic rear cover, a circuit board arranged within the rear cover and an antenna; the antenna comprising a radiation source connecting to the metallic rear cover and a circuitry portion on the circuit board; the radiation source comprising a first metallic piece connecting to the metallic rear cover, a second metallic piece connecting to the first metallic piece and the metallic rear cover, an insulating frame for generating an isolation between any two of the metallic rear cover, the first metallic piece and the second metallic piece, and a first conductor positioned on the insulating frame for electrically connecting the first metallic piece to the second metallic piece; the circuitry portion comprising a feed portion connecting to the radiation source, a grounding portion, and a controlling circuitry for controlling the grounding portion to connect or disconnect to the second metallic piece.

2 . The mobile communication device as described in claim 1 , wherein the metallic rear cover is grounded, and a second conductor is positioned on the insulating frame to electrically connect the first metallic piece to the metallic rear cover.

3 . The mobile communication device as described in claim 2 , wherein the insulating frame comprises a holding portion for supporting the first metallic piece, and an extending portion sandwiched between the metallic housing and the metallic surrounding piece, extending perpendicularly to the holding portion.

4 . The mobile communication device as described in claim 3 , wherein, a first connector is arranged on the circuit board, for connecting the controlling circuitry to the second metallic piece.

5 . The mobile communication device as described in claim 4 , wherein, a second connector is arranged on the circuit board, for connecting the feed portion to the second metallic piece.

6 . A method for manufacturing the mobile communication device as claimed in claim 1 , comprising the steps of:
providing a metallic rear cover and a circuit board received in the metallic rear cover; forming an antenna by providing a radiation source and a circuitry portion, the radiation source comprising a first metallic piece connecting to the metallic rear cover, and a second metallic piece connecting to the first metallic piece and the metallic rear cover, the circuitry portion is positioned on the circuit board by providing the circuit board with a feed portion connecting to the radiation source, a grounding portion, and a controlling circuitry for controlling the grounding portion to connect or disconnect with the second metallic piece; generating an isolation between any two of the metallic rear cover, the first metallic piece and the second metallic piece by an insulating frame; positioning a first conductor on the insulating frame to electrically connect the first metallic piece to the second metallic piece.

7 . The method for manufacturing the mobile communication device as described in claim 6 , further comprising steps of:
positioning a second conductor on the insulating frame to electrically connect the first metallic piece to the metallic rear cover; and positioning a first connector on the circuit board, for connecting the controlling circuitry to the second metallic piece, wherein the controlling circuitry is grounded by the grounded portion.

8 . The method for manufacturing the mobile communication device as described in claim 7 , further comprising steps of:
via the circuitry portion, controlling the second metallic piece to connect with the grounding portion; adjusting the first connector's positioning on the circuit board to tune the antenna to acquire a frequency band of 1710-2170 MHz.

9 . The method for manufacturing the mobile communication device as described in claim 7 , further comprising steps of:
via the circuitry portion, controlling the second metallic piece to disconnect with the grounding portion; adjusting the first and second conductors' position on the insulting frame for tuning the antenna to acquire a frequency band of 824-960 MHz and/or 2330-2690 MHz.

Assignees

• Yan Wei
• Aac Technologies Pte Ltd

Inventors

• Yan Wei

Classifications

• H01Q9/42

  with folded element, the folded parts being spaced apart a small fraction of the operating wavelength · CPC title

• H01Q1/1207

  for fastening a rigid aerial element · CPC title

• H01Q1/48

  Earthing means; Earth screens; Counterpoises · CPC title

• H01Q9/0421

  with a shorting wall or a shorting pin at one end of the element (H01Q9/0414 takes precedence) · CPC title

• H01Q1/243 Primary

  with built-in antennas · CPC title