Portable communication apparatus having a display and an antenna with a plane radiating member

• US 20020036593A1
• Filed: 09/25/2001
• Published: 03/28/2002
• Est. Priority Date: 09/25/2000
• Status: Active Grant

• Current Assignee: Telefonaktiebolaget LM Ericsson
• Original Assignee: Telefonaktiebolaget LM Ericsson
• Inventors: Ying, Zhinong
• Granted Patent: US 6,697,020 B2
• Time in Patent Office: Days
• US Class Current: 343/702
• CPC Class Codes: H01Q 1/243 with built-in antennas
• 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 1/40 Radiating elements coated with or embedded in protective material
• CPC Class Codes: H01Q 1/44 using equipment having another main function to serve additionally as an antenna , e.g. means for giving an antenna an aesthetic aspectH01Q1/27 - H01Q1/34 take precedence
• CPC Class Codes: H04B 1/3833 Hand-held transceivers

Abstract

A portable communication apparatus (10) has a display (12) and a first antenna with a plane radiating member (50). The display (12) and the plane radiating member (50) are integrated in a multi-layer structure (16), which is built into the portable communication apparatus. The first antenna may preferably be adapted for satellite communication, such as GPS.

Claims

1. A portable communication apparatus (10) having a display (12) and a first antenna with a plane radiating member (50;

70), characterized in that the display (12) and the plane radiating member (50;

70) of the antenna are integrated in a multi-layer structure (16).

2. A portable communication apparatus as in claim 1, wherein the plane radiating member (50;

70) is a patch antenna element.

3. A portable communication apparatus as in claim 2, wherein the display (12) comprises a layer of liquid crystals.

4. A portable communication apparatus as in claim 3, further comprising a plane light-guiding member (12a) interposed between the display (12) and the radiating member (50;

70).

5. A portable communication apparatus according to claim 4, further comprising a dielectric substrate (52;

72), which supports the radiating member (50;

70).

6. A portable communication apparatus as in claim 5, wherein the dielectric substrate comprises a dielectric framework (52) in the form of a grid.

7. A portable communication apparatus as in claim 6, further comprising:

radio circuitry (19, 60) and

an antenna feeding network (54) having first and second microstrip arms (62, 64), which are connected at a first respective end to the radio circuitry and at a respective second end to a respective feeding pin (66, 68), wherein said feeding pins protrude through the dielectric substrate (52) and are connected to the patch antenna element (50).

8. A portable communication apparatus as in claim 5, further comprising:

radio circuitry (19, 8G),

a feeding pin (84), which at a first end is connected to the patch antenna element (70) and at a second end is connected to the radio circuitry, and

a matching post (82), which at a first end is connected to the patch antenna element (70) and is grounded at a second end.

9. A portable communication apparatus as in any preceding claim, wherein said first antenna is adapted for satellite communication in a 1.57 GHz frequency band.

10. A portable communication apparatus as in any preceding claim, further comprising a second antenna (21) which is adapted to communicate with a mobile telecommunications network (30).

11. A portable communication apparatus as in any preceding claim, wherein the apparatus is a mobile telephone.

13. A combined display and antenna device as in claim 12, wherein the plane radiating member (50;

70) is a patch antenna element.

14. A combined display and antenna device as in claim 13, wherein the display (12) comprises a layer of liquid crystals.

15. A combined display and antenna device as in claim 14, further comprising a plane light-guiding member (12a) interposed between the display (12) and the radiating member (50;

70).

16. A combined display and antenna device according to claim 15, further comprising a dielectric substrate (52;

72), which supports the radiating member (50;

70).

17. A combined display and antenna device as in claim 16, wherein the dielectric substrate comprises a dielectric framework (52) in the form of a grid.

18. A combined display and antenna device as in claim 17, further comprising:

radio circuitry (19, 60) and

an antenna feeding network (54) having first and second microstrip arms (62, 64), which are connected at a first respective end to the radio circuitry and at a respective second end to a respective feeding pin (66, 68), wherein said feeding pins protrude through the dielectric substrate (52) and are connected to the patch antenna element (50).

19. A combined display and antenna device as in claim 16, further comprising:

radio circuitry (19, 86),

a feeding pin (84), which at a first end is connected to the patch antenna element (70) and at a second end is connected to the radio circuitry, and

a matching post (82), which at a first end is connected to the patch antenna element (70) and is grounded at a second end.

12. A combined display and antenna device (16) for a portable communication apparatus (10), characterized by

a display (12) having an extension in a first plane, and

a radiating member (50;

70) having an extension in a second plane, said second plane being essentially parallel to said first plane,

wherein said radiating member is integrated with said display in a multi-layer structure (16).

20. A combined display and antenna device as in any of claims 12-19, wherein said radiating member is adapted for satellite communication in a 1.57 GHz frequency band.

21. A combined display and antenna device as in any of claims 12-20, wherein the device is positioned in a mobile telephone (10).