Apparatus for controlling electric field distribution by utilizing short trace structures

• US 9,257,755 B2
• Filed: 07/23/2012
• Issued: 02/09/2016
• Est. Priority Date: 03/20/2012
• Status: Active Grant

• Current Assignee: Shenzhen China Star Optoelectronics Technology Co., Ltd. (TCL Technology Group Corp.)
• Original Assignee: Shenzhen China Star Optoelectronics Technology Co., Ltd. (TCL Technology Group Corp.)
• Inventors: Hsieh, Shih-Wei, Lin, Cho-Yi, Lin, Han-Chang
• Primary Examiner(s): DINH, TRINH VO
• Application Number:
  US13/555,208
• Publication Number:
  US 20130249739A1
• Time in Patent Office: 1,296 Days
• Field of Search: None
• US Class Current: 1/1
• CPC Class Codes: H01Q 1/243 with built-in antennas
• CPC Class Codes: H01Q 21/28 Combinations of substantially independent non-interacting antenna units or systems multiple beam H01Q25/00
• CPC Class Codes: H01Q 3/24 varying the orientation by switching energy from one active radiating element to another, e.g. for beam switching

Abstract

An apparatus for controlling electric field distribution is provided, where the apparatus includes at least one portion of a portable electronic device, the portable electronic device includes a plurality of wireless communication functions respectively corresponding to different communication standards, and the plurality of wireless communication functions includes a mobile phone function and at least one other wireless communication function. The apparatus includes: a main antenna, connected to a first side of a PCB of the portable electronic device, for performing the mobile phone function; and a plurality of short trace structures, positioned at the first side of the PCB and connected to the PCB, wherein at least one of the plurality of short trace structures is selectively utilized as at least one short trace or utilized as at least one secondary antenna corresponding to the at least one other wireless communication function.

Claims

1. An apparatus for controlling electric field distribution, the apparatus including at least a portion of a portable electronic device, the portable electronic device having a plurality of wireless communication functions corresponding to a plurality of different communication standards, respectively, the plurality of wireless communication functions including a mobile phone function and at least one other wireless communication function, the apparatus comprising:

a main antenna, electrically connected to a first side of a printed circuit board (PCB) of the portable electronic device, the main antenna arranged for performing the mobile phone function; and

a plurality of short circuit structures, positioned at the first side of the PCB and electrically connected to the PCB, wherein at least one of the plurality of short circuit structures is selected to be at least one auxiliary antenna corresponding to the at least one other wireless communication function, and other of the plurality of short circuit structures is selected to be a short circuit;

wherein a sound output module of the portable electronic device is closer to a second side of the PCB with respect to the first side of the PCB, the second side is opposite to the first side, the plurality of short circuit structures positioned at the first side of the PCB changes electric field distribution of the portable electronic device and the sound output module is closer to the second side of the PCB with respect to the first side of the PCB so as to reduce an electric field intensity at the sound output module.

2. The apparatus of claim 1, wherein the plurality of short circuit structures comprises two short circuit structures;

and the main antenna is positioned at the middle of the first side of the PCB and/or positioned between the two short circuit structures.

3. The apparatus of claim 1, wherein among the plurality of short circuit structures, any short circuit structure not selectively utilized as an auxiliary antenna is grounded.

4. The apparatus of claim 1, wherein the main antenna and the at least one auxiliary antenna correspond to different carrier frequencies, respectively.

5. The apparatus of claim 1, wherein the at least one of the plurality of short circuit structures comprises a first short circuit structure;

and the plurality of short circuit structures comprises a second short circuit structure, and the second short circuit structure is utilized as a short circuit.

6. The apparatus of claim 1, wherein the at least one of the plurality of short circuit structures comprises a first short circuit structure and a second short circuit structure;

and the first short circuit structure and the second short circuit structure are selectively utilized as two short circuit or utilized as two auxiliary antennas corresponding to the at least one other wireless communication function.

7. The apparatus of claim 1, wherein the at least one of the plurality of short circuit structures comprises at least a first extension and at least a second extension;

and in a case where the at least one of the plurality of short circuit structures is utilized as the least one short circuit, the at least one first extension is arranged to be a portion of the at least one short circuit.

8. The apparatus of claim 1, wherein the at least one of the plurality of short circuit structures comprises at least one first extension and at least one second extension;

and in a condition that the at least one of the plurality of short circuit structures is utilized as the at least one auxiliary antenna, the at least one first extension is utilized as at least a portion of the at least one auxiliary antenna.

9. The apparatus of claim 8, wherein in a case where the at least one of the plurality of short circuit structures is utilized as the at least one auxiliary antenna, the at least one second extension is utilized as at least a feed point of the at least one auxiliary antenna.

10. The apparatus of claim 1, wherein a microphone of the portable electronic device is closer to the first side of the PCB with respect to a second side of the PCB.

11. The apparatus of claim 1, wherein the main antenna comprises a first portion and a second portion, the first portion is parallel to the first side of the PCB, and the second portion is perpendicular to the first portion and the first side of the PCB.

12. The apparatus of claim 11, wherein each of the plurality of short circuit structures comprises a first extension and a second extension, the first extension is parallel to the first side of the PCB and the first portion of the main antenna, and the second extension is perpendicular to the first extension and the first side of the PCB.