Multiband antenna array using electromagnetic bandgap structures

• US 20070285336A1
• Filed: 06/09/2006
• Published: 12/13/2007
• Est. Priority Date: 06/09/2006
• Status: Active Grant

• Current Assignee: Intel Corporation
• Original Assignee: Intel Corporation
• Inventors: Kamgaing, Telesphor
• Granted Patent: US 7,760,140 B2
• Time in Patent Office: Days
• US Class Current: 343/895
• 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 1/523 between antennas of an array
• CPC Class Codes: H01Q 15/008 said selective devices having Sievenpipers' mushroom elements

Abstract

In some embodiments, a multiband antenna array using electromagnetic bandgap structures is presented. In this regard, an antenna array is introduced having two or more planar antennas situated substantially on a surface of a substrate, a first set of electromagnetic bandgap (EBG) cells situated substantially between and on plane with the antennas, and a second set of EBG cells situated within the substrate below the antennas. Other embodiments are also disclosed and claimed.

Claims

1. An antenna array comprising:

two or more planar antennas situated substantially on a surface of a substrate;

a first set of electromagnetic bandgap (EBG) cells situated substantially between and on plane with the antennas; and

a second set of EBG cells situated within the substrate below the antennas.

2. The antenna array of claim 1, further comprising four antennas arranged in a substantially square pattern.

3. The antenna array of claim 2, further comprising antennas situated within the substrate.

4. The antenna array of claim 1, further comprising plated through hole (PTH) waveguides coupled with the planar antennas.

5. The antenna array of claim 1, wherein the first set of EBG cells comprises spiral-based EBG cells.

6. The antenna array of claim 1, wherein the first set of EBG cells comprises four rows of EBG cells.

7. The antenna array of claim 1, wherein the second set of EBG cells comprises cells having a width of about 750 um.

8. An apparatus comprising:

a printed circuit board;

a wireless network controller soldered to the printed circuit board; and

an antenna array soldered to the printed circuit board, the antenna array comprising;

two or more planar antennas situated substantially on a surface of a substrate;

a first set of electromagnetic bandgap (EBG) cells situated substantially between and on plane with the antennas; and

a second set of EBG cells situated within the substrate below the antennas.

9. The apparatus of claim 8, further comprising four antennas arranged in a substantially square pattern.

10. The apparatus of claim 9, further comprising antennas situated within the substrate.

11. The apparatus of claim 8, further comprising the first set of EBG cells coupled with a grounded metal layer within the substrate.

12. The apparatus of claim 8, wherein the first set of EBG cells comprises spiral-based EBG cells.

13. The apparatus of claim 8, wherein the second set of EBG cells comprises cells having a width of about 750 um.

14. An electronic appliance comprising:

a wireless network controller;

a system memory;

a processor; and

an antenna array, wherein the antenna array includes two or more planar antennas situated substantially on a surface of a substrate, a first set of electromagnetic bandgap (EBG) cells situated substantially between the antennas; and

a second set of EBG cells situated within the substrate below the antennas.

15. The electronic appliance of claim 14, further comprising four antennas arranged in a substantially square pattern.

16. The electronic appliance of claim 15, further comprising antennas situated within the substrate.

17. The electronic appliance of claim 14, further comprising plated through hole (PTH) waveguides coupled with the planar antennas.

18. The electronic appliance of claim 14, wherein the first set of EBG cells comprises spiral-based EBG cells.

19. The electronic appliance of claim 14, wherein the first set of EBG cells comprises four rows of EBG cells.

20. A method comprising:

forming two or more planar antennas substantially on the surface of a package substrate; and

forming a first set of electromagnetic bandgap (EBG) cells substantially between the antennas.

21. The method of claim 20, further comprising forming a second set of EBG cells within the substrate below the antennas.

22. The method of claim 20, further comprising forming four antennas arranged in a substantially square pattern.

23. The method of claim 20, further comprising forming plated through hole (PTH) waveguides coupled with the planar antennas.

24. The method of claim 20, further comprising forming metal layers within the substrate which serve as ground planes coupled with the EBG cells.

25. The method of claim 20, further comprising forming a multi-layer organic substrate.