Antenna device with surface antenna pattern integrally coated casing of electronic device

• US 20080297420A1
• Filed: 09/13/2007
• Published: 12/04/2008
• Est. Priority Date: 06/01/2007
• Status: Active Grant

• Current Assignee: Getac Technology Company Limited (MiTAC Holdings Corp.)
• Original Assignee: Getac Technology Company Limited (MiTAC Holdings Corp.)
• Inventors: Chou, Cheng-Zing, Cheng, Yu-Chiang, Chang, Ping-Cheng
• Granted Patent: US 7,825,862 B2
• Time in Patent Office: Days
• US Class Current: 343/702
• CPC Class Codes: H01Q 1/2258 used with computer equipment

Abstract

An antenna device with a surface antenna pattern is formed either on an internal surface or on the external surface of a casing of an electronic device by film coating technology. The surface antenna pattern is either directly connected to a signal feeding line or connected to a signal feeding line through a signal guiding passage. In an embodiment, a recess is pre-formed on the external surface of the casing and then a surface antenna pattern is coated to the recess. The antenna device may further comprise an antenna coupling element arranged at the internal surface of the casing, in opposite to the surface antenna pattern. The antenna coupling element is inductively coupled with the surface antenna pattern for transceiving the signals to the electronic device.

Claims

1. An antenna device for using in an electronic device having an antenna module and a casing with an internal surface and an external surface, comprising:

a surface antenna pattern, which is formed by film coating technology on the external surface of the casing of the electronic device for transceiving a wireless signal of a predetermined radiation frequency;

a signal guiding passage, comprising a signal feeding end for electrically connecting to the surface antenna pattern and a connecting end which passes through the casing to the internal surface of the casing and is electrically connected with the signal feeding line; and

an antenna signal feeding line, which is connected between the signal guiding passage and the antenna module of the electronic device for feeding the wireless signal transceived by the surface antenna pattern to the antenna module of the electronic device.

2. The antenna device as claimed in claim 1, wherein the surface antenna pattern is formed on a recess pre-formed at the external surface of the casing.

3. The antenna device as claimed in claim 1, wherein the electronic device is a portable personal computer and the casing is a display module casing for the mounting of a LCD display.

4. The antenna device as claimed in claim 1, wherein the surface antenna pattern is formed by film coating technology selected from the group of dip coating, electroplating and sputtering.

5. An antenna device for using in an electronic device having an antenna module and a casing with an internal surface and an external surface, comprising:

a surface antenna pattern, which is formed by film coating technology on the internal surface of the casing of the electronic device for transceiving a wireless signal of a predetermined radiation frequency; and

an antenna signal feeding line, which is connected between the surface antenna pattern and the antenna module of the electronic device for feeding the wireless signal transceived by the surface antenna pattern to the antenna module of the electronic device.

6. The antenna device as claimed in claim 5, wherein the surface antenna pattern is formed on a recess pre-formed at the internal surface of the casing.

7. The antenna device as claimed in claim 5, wherein the electronic device is a portable personal computer and the casing is a display module casing for the mounting of a LCD display.

8. The antenna device as claimed in claim 5, wherein the surface antenna pattern is formed by film coating technology selected from the group of dip coating, electroplating and sputtering.

9. An antenna device for using in an electronic device having an antenna module and a casing with an internal surface and an external surface, comprising:

a surface antenna pattern, which is formed by film coating technology on the external surface of the casing of the electronic device for transceiving a wireless signal of a predetermined radiation frequency;

an antenna coupling element, which is arranged at a position at the internal surface of the casing directly opposite to the surface antenna pattern at the external surface of the casing;

an antenna signal feeding, which is connected between the antenna coupling element and the antenna module of the electronic device for feeding the wireless signals transceived by the surface antenna pattern to the antenna module of the electronic device.

10. The antenna device as claimed in claim 9, wherein the surface antenna pattern is formed on a recess pre-formed at the external surface of the casing.

11. The antenna device as claimed in claim 9, wherein the electronic device is a portable personal computer and the casing is a display module casing for the mounting of a LCD display.

12. The antenna device as claimed in claim 9, wherein the surface antenna pattern is formed by film coating technology selected from the group of dip coating, electroplating and sputtering.