Antenna for WWAN and integrated antenna for WWAN, GPS and WLAN

• US 7,893,877 B2
• Filed: 10/30/2006
• Issued: 02/22/2011
• Est. Priority Date: 10/31/2005
• Status: Expired due to Fees

• Current Assignee: Yageo Corporation
• Original Assignee: Yageo Corporation
• Inventors: Mai, Ching-Chia, Wang, Chi-Yueh, Lee, Cheng-Han
• Primary Examiner(s): Ho; Tan
• Application Number:
  US11/589,236
• Publication Number:
  US 20070096999A1
• Time in Patent Office: 1,576 Days
• Field of Search: 343/700.MS, 343/702
• US Class Current: 343/700.0MS
• CPC Class Codes: H01Q 1/2258 used with computer equipment
• CPC Class Codes: H01Q 1/241 used in mobile communications, e.g. GSM H01Q1/247, H01Q1/248 take precedence
• CPC Class Codes: H01Q 9/42 with folded element, the folded parts being spaced apart a small fraction of the operating wavelength

Abstract

An integrated antenna for WWAN, GPS, and WLAN includes a ground metal plane, a WWAN antenna, and a WLAN antenna. The WWAN antenna is connected to the ground metal plane and includes first and second radiating metal strips which induce a first resonance mode and a second resonance mode respectively. The WLAN antenna is connected to the ground metal plane and includes third and fourth radiating metal strips which induce a third resonance mode and a fourth resonance mode respectively. The integrated antenna can be used in WWAN and WLAN at the same time. The ground metal plane of the integrated antenna does not need to connect to a ground end of a wireless electronic device, and is used for grounding. Therefore, the integrated antenna can be mounted on any part of a wireless electronic device, and can have stable electrical characteristics.

Claims

1. An integrated antenna for WWAN and WLAN, comprising:

a ground metal plane;

a WWAN antenna, connected to the ground metal plane and comprising a first radiating metal strip and a second radiating metal strip, wherein the first and second radiating metal strips are used to induce a first resonance mode and a second resonance mode respectively, the WWAN antenna further comprises a first connecting metal strip for connecting the first radiating metal strip and the second radiating metal strip to the ground metal plane; and

a WLAN antenna, connected to the ground metal plane and comprising a third radiating metal strip and a fourth radiating metal strip, wherein the third and fourth radiating metal strips are used to induce a third resonance mode and a fourth resonance mode respectively, the WLAN antenna further comprises a second connecting metal strip for connecting the third radiating metal strip and the fourth radiating metal strip to the ground metal plane,

wherein the ground metal plane is disposed on a bottom surface, the first connecting metal strip of the WWAN antenna extends from one side of the ground metal plane and is disposed on a first side surface, the first radiating metal strip and the second radiating metal strip of the WWAN antenna are disposed on a top surface which is opposite the bottom surface, and the WWAN antenna further comprises an extending metal strip disposed on a second side surface which is opposite the first side surface;

the WLAN antenna is disposed on the first side surface or the second side surface.

2. The integrated antenna as claimed in claim 1, wherein the frequency of the first resonance mode is 850 MHz and 900 MHz, the frequency of the second resonance mode is 1575 MHz, 1800 MHz and 1900 MHz, or 1800 MHz, 1900 MHz and 2000 MHz, the frequency of the third resonance mode is 2.4 GHz, and the frequency of the fourth resonance mode is 5 GHz.

3. The integrated antenna as claimed in claim 1, wherein the first radiating metal strip and the second radiating metal strip extend in two opposite directions, so that the WWAN antenna assumes a T-shape;

the third radiating metal strip and the fourth radiating metal strip extend in two opposite directions, so that the WLAN antenna assumes a T-shape.

4. The integrated antenna as claimed in claim 1, wherein the first radiating metal strip and the second radiating metal strip extend in the same direction, so that the WWAN antenna assumes an F-shape;

the third radiating metal strip and the fourth radiating metal strip extend in two opposite directions, so that the WLAN antenna assumes a T-shape.

5. The integrated antenna as claimed in claim 1, wherein the first radiating metal strip and the second radiating metal strip extend in two opposite directions, so that the WWAN antenna assumes a T-shape;

the third radiating metal strip and the fourth radiating metal strip extend in the same direction, so that the WLAN antenna assumes an F-shape.

6. The integrated antenna as claimed in claim 1, wherein the first radiating metal strip and the second radiating metal strip extend in the same direction, so that the WWAN antenna assumes an F-shape;

the third radiating metal strip and the fourth radiating metal strip extend in the same direction, so that the WLAN antenna assumes an F-shape.

7. The integrated antenna as claimed in claim 1, further comprising at least one auxiliary ground metal plane connected to the ground metal plane for providing an appropriate grounding.

8. The integrated antenna as claimed in claim 7, wherein the auxiliary ground metal plane is aluminum foil.

9. The integrated antenna as claimed in claim 7, wherein the auxiliary ground metal plane is conductive foam.

10. The integrated antenna as claimed in claim 1, wherein the ground metal plane has at least one slotted hole.

11. The integrated antenna as claimed in claim 1, wherein the first radiating metal strip further comprises a first prolonging metal strip for prolonging the length of the first radiating metal strip.

12. The integrated antenna as claimed in claim 11, wherein the first prolonging metal strip is mounted on a first side surface or a second side surface of the integrated antenna.

13. The integrated antenna as claimed in claim 1, wherein the second radiating metal strip further comprises a second prolonging metal strip for prolonging the length of the second radiating metal strip.

14. The integrated antenna as claimed in claim 13, wherein the second prolonging metal strip is mounted on a first side surface or a second side surface of the integrated antenna.

15. The integrated antenna as claimed in claim 1, wherein the integrated antenna further comprises a coupling metal strip.

16. The integrated antenna as claimed in claim 15, wherein the coupling metal strip is mounted on a first side surface or a second side surface of the integrated antenna.

17. The integrated antenna as claimed in claim 15, wherein the coupling metal strip is mounted on the first side surface at a corresponding position below the first radiating metal strip.

18. The integrated antenna as claimed in claim 15, wherein the coupling metal strip is mounted on the first side surface at a corresponding position below the second radiating metal strip.

19. The integrated antenna as claimed in claim 1, wherein the WLAN antenna and the WWAN antenna are not overlapped in the space.

20. The integrated antenna as claimed in claim 19, wherein the WLAN antenna is mounted on the right side or the left side of the WWAN antenna.

21. The integrated antenna as claimed in claim 1, wherein the first radiating metal strip and the second radiating metal strip extend in the same direction, so that the WWAN antenna assumes an F-shape.

22. An integrated antenna for WWAN and WLAN, comprising:

a ground metal plane;

a WWAN antenna, connected to the around metal plane and comprising a first radiating metal strip and a second radiating metal strip, wherein the first and second radiating metal strips are used to induce a first resonance mode and a second resonance mode respectively, the WWAN antenna further comprises a first connecting metal strip for connecting the first radiating metal strip and the second radiating metal strip to the ground metal plane; and

a WLAN antenna, connected to the ground metal plane and comprising a third radiating metal strip and a fourth radiating metal strip, wherein the third and fourth radiating metal strips are used to induce a third resonance mode and a fourth resonance mode respectively, the WLAN antenna further comprises a second connecting metal strip for connecting the third radiating metal strip and the fourth radiating metal strip to the ground metal plane,

wherein the integrated antenna further comprises a printed circuit board (PCB), the ground metal plane is disposed on a bottom surface of the PCB, the first connecting metal strip of the WWAN antenna extends from one side of the ground metal plane and is disposed on a first side surface of the PCB, the first radiating metal strip and the second radiating metal strip of the WWAN antenna are disposed on a top surface of the PCB in which the top surface is opposite the bottom surface, and the WWAN antenna further comprises an extending metal strip disposed on a second side surface of the PCB in which the second side surface is opposite the first side surface;

the WLAN antenna is disposed on the first side surface or the second side surface of the PCB.

23. An integrated antenna for WWAN and WLAN, comprising:

a ground metal plane;

a WWAN antenna, connected to the ground metal plane and comprising a first radiating metal strip and a second radiating metal strip wherein the first and second radiating metal strips are used to induce a first resonance mode and a second resonance mode respectively, the WWAN antenna further comprises a first connecting metal strip for connecting the first radiating metal strip and the second radiating metal strip to the ground metal plane; and

a WLAN antenna, connected to the ground metal plane and comprising a third radiating metal strip and a fourth radiating metal strip, wherein the third and fourth radiating metal strips are used to induce a third resonance mode and a fourth resonance mode respectively, the WLAN antenna further comprises a second connecting metal strip for connecting the third radiating metal strip and the fourth radiating metal strip to the ground metal plane,

wherein the integrated antenna further comprises a ceramic substrate, the ground metal plane is disposed on a bottom surface of the ceramic substrate, the first connecting metal strip of the WWAN antenna extends from one side of the ground metal plane and is disposed on a first side surface of the ceramic substrate, the first radiating metal strip and the second radiating metal strip of the WWAN antenna are disposed on a top surface of the ceramic substrate in which the top surface is opposite the bottom surface, and the WWAN antenna further comprises an extending metal strip disposed on a second side surface of the ceramic substrate in which the second side surface is opposite the first side surface;

the WLAN antenna is disposed on the first side surface or the second side surface of the ceramic substrate.

24. An integrated antenna for WWAN and WLAN, comprising:

a ground metal plane;

a WWAN antenna, connected to the ground metal plane and comprising a first radiating metal strip and a second radiating metal strip, wherein the first and second radiating metal strips are used to induce a first resonance mode and a second resonance mode respectively, the WWAN antenna further comprises a first connecting metal strip for connecting the first radiating metal strip and the second radiating metal strip to the ground metal plane; and

a WLAN antenna, connected to the around metal plane and comprising a third radiating metal strip and a fourth radiating metal strip, wherein the third and fourth radiating metal strips are used to induce a third resonance mode and a fourth resonance mode respectively, the WLAN antenna further comprises a second connecting metal strip for connecting the third radiating metal strip and the fourth radiating metal strip to the ground metal plane,

wherein the integrated antenna further comprises a flexible PCB (FPCB), the ground metal plane is disposed at a bottom surface of the FPCB, the first connecting metal strip of the WWAN antenna extends upward from one side of the ground metal plane, the first radiating metal strip and the second radiating metal strip of the WWAN antenna extend upward from the first connecting metal strip, and the WWAN antenna further comprises an extending metal strip extending from the junction of the first and second radiating metal strips;

the WLAN antenna extends upward from the side of the ground metal plane and is disposed between the WWAN antenna and the ground metal plane.

25. The integrated antenna as claimed in claim 24, wherein the FPCB is bent into a cuboid, the ground metal plane is disposed on a bottom surface of the cuboid, the first connecting metal strip of the WWAN antenna is disposed on a first side surface of the cuboid, the first radiating metal strip and the second radiating metal strip of the WWAN antenna are disposed on a top surface of the cuboid in which the top surface is opposite the bottom surface, and the extending metal strip of the WWAN antenna is disposed on a second side surface of the cuboid in which the second side surface is opposite the first side surface;

the WLAN antenna is disposed on the first side surface of the cuboid.

26. An antenna for WWAN, comprising:

a ground metal plane; and

a WWAN antenna, connected to the ground metal plane and comprising a first radiating metal strip, a second radiating metal strip and a first connecting metal strip, wherein the first and second radiating metal strips are used to induce a first resonance mode and a second resonance mode respectively, and the first connecting metal strip is used for connecting the first radiating metal strip and the second radiating metal strip to the ground metal plane,

wherein the ground metal plane is disposed on a bottom surface, the first connecting metal strip of the WWAN antenna extends from one side of the ground metal plane and is disposed on a first side surface, the first radiating metal strip and the second radiating metal strip of the WWAN antenna are disposed on a top surface which is opposite the bottom surface, and the WWAN antenna further comprises an extending metal strip disposed on a second side surface which is opposite the first side surface.

27. The antenna as claimed in claim 26, wherein the frequency of the first resonance mode is 850 MHz and 900 MHz, the frequency of the second resonance mode is 1575 MHz, 1800 MHz and 1900 MHz, or 1800 MHz, 1900 MHz and 2000 MHz.

28. The antenna as claimed in claim 26, wherein the first radiating metal strip and the second radiating metal strip extend in two opposite directions, so that the WWAN antenna assumes a T-shape.

29. An antenna for WWAN, comprising:

a ground metal plane; and

a WWAN antenna, connected to the ground metal plane and comprising a first radiating metal strip, a second radiating metal strip and a first connecting metal strip, wherein the first and second radiating metal strips are used to induce a first resonance mode and a second resonance mode respectively, and the first connecting metal strip is used for connecting the first radiating metal strip and the second radiating metal strip to the ground metal plane,

wherein the integrated antenna further comprises a printed circuit board (PCB), the ground metal plane is disposed on a bottom surface of the PCB, the first connecting metal strip of the WWAN antenna extends from one side of the ground metal plane and is disposed on a first side surface of the PCB, the first radiating metal strip and the second radiating metal strip of the WWAN antenna are disposed on a top surface of the PCB in which the top surface is opposite the bottom surface, and the WWAN antenna further comprises an extending metal strip disposed on a second side surface of the PCB in which the second side surface is opposite the first side surface.

30. An antenna for WWAN, comprising:

a ground metal plane; and

a WWAN antenna, connected to the ground metal plane and comprising a first radiating metal strip, a second radiating metal strip and a first connecting metal strip, wherein the first and second radiating metal strips are used to induce a first resonance mode and a second resonance mode respectively, and the first connecting metal strip is used for connecting the first radiating metal strip and the second radiating metal strip to the ground metal plane,

wherein the integrated antenna further comprises a ceramic substrate, the ground metal plane is disposed on a bottom surface of the ceramic substrate, the first connecting metal strip of the WWAN antenna extends from one side of the ground metal plane and is disposed on a first side surface of the ceramic substrate, the first radiating metal strip and the second radiating metal strip of the WWAN antenna are disposed on a top surface of the ceramic substrate in which the top surface is opposite the bottom surface, and the WWAN antenna further comprises an extending metal strip disposed on a second side surface of the ceramic substrate in which the second side surface is opposite the first side surface.

31. An antenna for WWAN, comprising:

a ground metal plane; and

a WWAN antenna, connected to the ground metal plane and comprising a first radiating metal strip, a second radiating metal strip and a first connecting metal strip, wherein the first and second radiating metal strips are used to induce a first resonance mode and a second resonance mode respectively, and the first connecting metal strip is used for connecting the first radiating metal strip and the second radiating metal strip to the ground metal plane,

wherein the integrated antenna further comprises a flexible PCB (FPCB), the ground metal plane is disposed at a bottom surface of the FPCB, the first connecting metal strip of the WWAN antenna extends upward from one side of the ground metal plane, the first radiating metal strip and the second radiating metal strip of the WWAN antenna extend upward from the first connecting metal strip, and the WWAN antenna further comprises an extending metal strip extending from the junction of the first and second radiating metal strips.

32. The antenna as claimed in claim 31, wherein the FPCB is bent into a cuboid, the ground metal plane is disposed on a bottom surface of the cuboid, the first connecting metal strip of the WWAN antenna is disposed on a first side surface of the cuboid, the first radiating metal strip and the second radiating metal strip of the WWAN antenna are disposed on a top surface of the cuboid in which the top surface is opposite the bottom surface, and the extending metal strip of the WWAN antenna is disposed on a second side surface of the cuboid in which the second side surface is opposite the first side surface.