Arrangement of a printed circuit board-mounted antenna in a portable electronic device with a metallic hinge base

• US 20020030628A1
• Filed: 12/18/2000
• Published: 03/14/2002
• Est. Priority Date: 08/01/2000
• Status: Active Grant

• Current Assignee: Hon Hai Precision Industry Co., Ltd.
• Original Assignee: Hon Hai Precision Industry Co., Ltd.
• Inventors: Tsai, Szu-Nan
• Granted Patent: US 6,486,834 B2
• Time in Patent Office: Days
• US Class Current: 343/702
• CPC Class Codes: G06F 1/1616 with folding flat displays, e.g. laptop computers or notebooks having a clamshell configuration, with body parts pivoting to an open position around an axis parallel to the plane they define in closed position
• CPC Class Codes: H01Q 1/24 with receiving set
• CPC Class Codes: H01Q 1/38 formed by a conductive layer on an insulating support patch antennas H01Q9/0407; microstrip dipole antennas H01Q9/065; microstrip slot antennas H01Q13/106; transmission line microstrip antennas H01Q13/206; manufacturing reflecting surfaces using insulating material for supporting the reflecting surface H01Q15/142
• CPC Class Codes: H01Q 9/0407 Substantially flat resonant element parallel to ground plane, e.g. patch antenna dipole H01Q9/285; monopole H01Q9/40

Abstract

An antenna assembly (20) is mounted on a metal hinge base (16) of an electronic device, and includes a printed circuit board (PCB) (22), an antenna (24), a metal sheet (26) and a coaxial cable (28). The PCB has a first surface (221) and a second surface (223) parallel to and spaced a distance from the first surface. The antenna and the metal sheet are respectively disposed on the first surface and the second surface of the PCB. The metal hinge base has a metal block (162) connecting with the metal sheet. The cable has a conductive core wire (282) and a ground shield (284) around the core wire. The core wire and the ground shield respectively electrically connect with the antenna and the metal sheet.

Claims

1. An antenna assembly used in a portable electronic device, comprising:

a printed circuit board (PCB) having opposite first and second surfaces;

a metal sheet attached to the second surface of the PCB, whereby said PCB is fixed to a metal hinge base of the portable electronic device at a position such that the metal sheet electrically connects with the metal hinge base;

a flat antenna mounted on the first surface of the PCB; and

a signal transmitting cable having a core wire electrically connecting with the antenna, and a ground shield surrounding the core wire electrically connecting with the metal sheet.

2. The antenna assembly as claimed in claim 1, wherein the first surface of the PCB is parallel to and spaced a distance from the second surface.

3. The antenna assembly as claimed in claim 1, wherein a circular aperture is defined through the first and second surfaces at a position between the antenna and the metal sheet, and wherein the core wire is inserted through the aperture, the second surface and the first surface to electrically connect with the antenna on the first surface.

4. The antenna assembly as claimed in claim 1, wherein the cable connects to the PCB at a point between the antenna and the metal sheet.

5. The antenna assembly as claimed in claim 1, wherein the PCB is mounted on a metal block of the hinge base of the portable electronic device via a fastener, and wherein the metal sheet abuts against and electrically connects with the metal block.

6. An antenna assembly adapted to mount on a metal hinge base of an electronic device, comprising:

an antenna provided on a first surface;

a ground means mounted on a second surface; and

a coaxial cable including a core wire and a ground shield around the core wire, the core wire electrically connecting with the antenna, and the ground shield connecting with the ground means;

wherein the grounding means electrically connects with the metal hinge base.

7. The antenna assembly as claimed in claim 6, wherein the first surface is parallel to and spaced a distance from the second surface.

8. The antenna assembly as claimed in claim 6, wherein the ground means comprises a metal sheet glued or printed on the second surface of the PCB.

9. An antenna assembly used in a portable electronic device comprising:

a printed circuit board (PCB) having opposite first and second surface;

a flat antenna mounted on the first surface;

a grounding pad mounted on the second surface and adapted to be connected to a metal base of the device;

a signal transmission cable including a core wire extending from the second surface through an aperture of the printed circuit board to the first surface and connected to the flat antenna, and a ground shield surrounding the core wire terminating at the second surface without extending through the aperture but connected to the grounding pad.

10. The assembly as claimed in claim 9, wherein said flat antenna and said grounding pad are respectively positioned by two sides of the aperture diametrically.

11. The assembly as claimed in claim 9, wherein said metal base is used as a hinge base of said device.