Multilevel antennae

• US 8,154,463 B2
• Filed: 03/09/2011
• Issued: 04/10/2012
• Est. Priority Date: 09/20/1999
• Status: Expired due to Fees

• Current Assignee: Fractus SA
• Original Assignee: Fractus SA
• Inventors: Baliarda, Carles Puente, Borau, Carmen Borja, Pros, Jaume Anguera, Castany, Jordi Soler
• Primary Examiner(s): PHAN, THO GIA
• Application Number:
  US13/044,189
• Publication Number:
  US 20110163923A1
• Time in Patent Office: 398 Days
• Field of Search: 343/700.MS, 343/702, 343/829, 343/846
• US Class Current: 343/702
• CPC Class Codes: H01Q 1/241 used in mobile communications, e.g. GSM H01Q1/247, H01Q1/248 take precedence
• CPC Class Codes: H01Q 1/36 Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewithH01Q1/08, H01Q1/14 take precedence
• 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 1/50 Structural association of antennas with earthing switches, lead-in devices or lightning protectors
• CPC Class Codes: H01Q 5/10 Resonant antennas
• CPC Class Codes: H01Q 5/20 characterised by the operating wavebands
• CPC Class Codes: H01Q 5/307 Individual or coupled radiating elements, each element being fed in an unspecified way
• CPC Class Codes: H01Q 5/357 using a single feed point
• CPC Class Codes: H01Q 5/40 Imbricated or interleaved structures; Combined or electromagnetically coupled arrangements, e.g. comprising two or more non-connected fed radiating elements
• CPC Class Codes: H01Q 5/50 Feeding or matching arrangements for broad-band or multi-band operation
• CPC Class Codes: H01Q 9/04 Resonant antennas
• CPC Class Codes: H01Q 9/0407 Substantially flat resonant element parallel to ground plane, e.g. patch antenna dipole H01Q9/285; monopole H01Q9/40
• CPC Class Codes: H01Q 9/065 Microstrip dipole antennas patch antenna H01Q9/0407
• CPC Class Codes: H01Q 9/28 Conical, cylindrical, cage, strip, gauze, or like elements having an extended radiating surface; Elements comprising two conical surfaces having collinear axes and adjacent apices and fed by two-conductor transmission lines waveguide horns or mouths H01Q13/00; slot antennas H01Q13/00
• CPC Class Codes: H01Q 9/40 Element having extended radiating surface

Abstract

An apparatus including a wireless communications device has an internal antenna system located within the wireless communications device. The internal antenna system includes a passive antenna set comprising at least one antenna element having at least one multilevel structure, a feeding point to the at least one antenna element and a ground plane. The feeding point and a point on the ground plane define an input/output port for said passive antenna set. The passive antenna set provides a similar impedance level and radiation pattern at two or more frequency bands such that the passive antenna set is capable of both transmitting and receiving wireless signals on selected channels. The selected channels are selectable from a plurality of channels throughout an entire frequency range within each of said two or more frequency bands.

Claims

1. A multi-band antenna including:

at least one multilevel structure;

wherein the multilevel structure comprises a set of polygonal or polyhedral elements having the same number of sides or faces;

wherein each of said elements is electromagnetically coupled to at least one other of said elements either directly through at least one point of contact or through a small separation providing coupling;

wherein for at least 75% of said polygonal or polyhedral elements, the region or area of contact between said polygonal or polyhedral elements is less than 50% of the perimeter or area of said elements;

wherein not all the polygonal or polyhedral elements have the same size and the perimeter of the multilevel structure has a different number of sides than the polygonal or polyhedral elements that compose the multilevel structure;

wherein said multi-band antenna is entirely inside of a portable communications device;

wherein said portable communications device is a handset;

wherein the multi-band antenna system further includes a matching network connected to an input/output port;

wherein a level of impedance and radiation pattern of said multi-band antenna are similar in several frequency bands so that the multi-band antenna maintains basically a same radio-electric characteristics and functionality in said bands to allow the multi-band antenna to operate simultaneously in several frequencies and thereby be able to be shared by several communication services;

wherein said multi-band antenna operates at multiple frequency bands, and wherein at least one of said multiple frequency bands is operating within the 800 MHz-3600 MHz frequency range; and

wherein said portable communications device provides at least one cellular service across the entire 1850-1990 MHz frequency range.

2. The multi-band antenna according to claim 1, wherein the multi-band antenna operates at three or more frequency bands and the multi-band antenna is shared by three or more cellular services.

3. The multi-band antenna set forth in claim 2, wherein said multi-band antenna operates at multiple frequency bands, and wherein at least one of said frequency bands is used by a GSM communication service.

4. The multi-band antenna according to claim 3, wherein said at least one multilevel structure is mounted substantially parallel to a ground plane in a patch antenna configuration.

5. The multi-band antenna according to claim 2, wherein said at least one multilevel structure is mounted in a monopole configuration.

6. The multi-band antenna according to claim 1, wherein said at least one multilevel structure is formed by four-sided polygons.

7. The multi-band antenna, as set forth in claim 6 further including at least one dielectric spacer for separating at least a section of the multi-band antenna from a ground plane, wherein at least a portion of said dielectric spacer overlaps a dielectric substrate layer placed over the ground plane.

8. The multi-band antenna set forth in claim 7, wherein said multi-band antenna operates at multiple frequency bands, and wherein at least one of said frequency bands is used by a GSM communication service.

9. The multi-band antenna according to claim 8, wherein said at least one multilevel structure is mounted substantially parallel to the ground plane in a patch antenna configuration.

10. The multi-band antenna according to claim 7, wherein said at least one multilevel structure is mounted in a monopole configuration.

11. The multi-band antenna, as set forth in claim 1, wherein the multi-band antenna provides operation over at least three frequency bands having similar impedance levels and radiation patterns, and further wherein the multi-band antenna transmits and receives wireless signals throughout an entire frequency range within each of said at least three frequency bands.

12. The multi-band antenna set forth in claim 11, wherein said multi-band antenna operates at multiple frequency bands, and wherein at least one of said multiple frequency bands is used by a GSM communication service.

13. The multi-band antenna according to claim 12, wherein said at least one multilevel structure is mounted substantially parallel to a ground plane in a patch antenna configuration.

14. The multi-band antenna according to claim 11, wherein said at least one multilevel structure is mounted in a monopole configuration.

15. The multi-band antenna, as set forth in claim 1, wherein the multi-band antenna provides operation on at least four frequency bands having similar impedance levels and radiation patterns, and further wherein the multi-band antenna transmits and receives wireless signals throughout an entire frequency range within each of said at least four frequency bands.

16. The multi-band antenna set forth in claim 15, wherein said multi-band antenna operates at multiple frequency bands, and wherein at least one of said frequency bands is used by a GSM communication service.

17. The multi-band antenna according to claim 16, wherein said at least one multilevel structure is mounted substantially parallel to a ground plane in a patch antenna configuration.

18. The multi-band antenna according to claim 15, wherein said at least one multilevel structure is mounted in a monopole configuration.

19. A multi-band antenna including:

at least one multilevel structure;

wherein the multilevel structure includes at least one antenna region comprising a set of polygonal or polyhedral elements having the same number of sides or faces;

wherein each of said elements in said at least one antenna region is electromagnetically coupled to at least one other of said elements in said region either directly through at least one point of contact or through a small separation providing said coupling;

wherein for at least 75% of said polygonal or polyhedral elements, the region or area of contact between said polygonal or polyhedral elements is less than 50% of the perimeter or area of said elements;

wherein not all of the polygonal or polyhedral elements have the same size;

wherein the perimeter of the multilevel structure has a different number of sides than the polygonal or polyhedral elements that compose said at least one antenna region;

wherein a plurality of polygons of said at least one antenna region are generally identifiable as a geometrical element defined by the free perimeter thereof and the projection of ones of the longest exposed perimeters thereof to define a least number of polygons within said region necessary to form said generally distinguishable elements where said polygon perimeters are interconnected;

wherein said multi-band antenna is entirely inside of a portable communications device;

wherein said portable communications device is a handset;

wherein the multi-band antenna system further includes a matching network connected to an input/output port;

wherein the level of impedance and radiation pattern of said multi-band antenna are similar in several frequency bands so that the multi-band antenna maintains basically the same radio-electric characteristics and functionality in said bands to allow the multiband antenna to operate simultaneously in several frequencies and thereby be able to be shared by several communication services;

wherein said multi-band antenna operates at multiple frequency bands, and wherein at least one of said multiple frequency bands is operating within the 800 MHz-3600 MHz frequency range; and

wherein said portable communications device provides at least one cellular service across the entire 1850-1990 MHz frequency range.

20. The multi-band antenna according to claim 19, wherein the multi-band antenna operates at three or more frequency bands and the multi-band antenna is shared by three or more cellular services.

21. The multi-band antenna set forth in claim 20, wherein said multi-band antenna operates at multiple frequency bands, and wherein at least one of said frequency bands is used by a GSM communication service.

22. The multi-band antenna according to claim 21, wherein said at least one multilevel structure is mounted substantially parallel to a ground plane in a patch antenna configuration.

23. The multi-band antenna according to claim 20, wherein said at least one multilevel structure is mounted in a monopole configuration.

24. The multi-band antenna according to claim 19, wherein said at least one multilevel structure is formed by four-sided polygons.

25. The multi-band antenna, as set forth in claim 24, further including at least one dielectric spacer for separating the at least one antenna region from a ground plane, wherein at least a portion of said dielectric spacer overlaps a dielectric substrate layer placed over the ground plane.

26. The multi-band antenna set forth in claim 25, wherein said multi-band antenna operates at multiple frequency bands, and wherein at least one of said frequency bands is used by a GSM communication service.

27. The multi-band antenna according to claim 26, wherein said at least one multilevel structure is mounted substantially parallel to the ground plane in a patch antenna configuration.

28. The multi-band antenna according to claim 25, wherein said at least one multilevel structure is mounted in a monopole configuration.

29. The multi-band antenna, as set forth in claim 19, wherein the multi-band antenna provides operation over at least three frequency bands having similar impedance levels and radiation patterns, and further wherein the multi-band antenna transmits and receives wireless signals throughout an entire frequency range within each of said at least three frequency bands.

30. The multi-band antenna set forth in claim 29, wherein said multi-band antenna operates at multiple frequency bands, and wherein at least one of said frequency bands is used by a GSM communication service.

31. The multi-band antenna according to claim 30, wherein said at least one multilevel structure is mounted substantially parallel to a ground plane in a patch antenna configuration.

32. The multi-band antenna according to claim 29, wherein said at least one multilevel structure is mounted in a monopole configuration.

33. The multi-band antenna, as set forth in claim 19, wherein the multi-band antenna provides operation on at least four frequency bands having similar impedance levels and radiation patterns, and further wherein the multi-band antenna transmits and receives wireless signals throughout an entire frequency range within each of said at least four frequency bands.

34. The multi-band antenna set forth in claim 33, wherein said multi-band antenna operates at multiple frequency bands, and wherein at least one of said frequency bands is used by a GSM communication service.

35. The multi-band antenna according to claim 34, wherein said at least one multilevel structure is mounted substantially parallel to a ground plane in a patch antenna configuration.

36. The multi-band antenna according to claim 33, wherein said at least one multilevel structure is mounted in a monopole configuration.

37. A multi-band antenna including:

at least one multilevel structure;

wherein the multilevel structure includes at least one antenna region comprising a set of polygonal or polyhedral elements having a generally identifiable geometrical shape and having the same number of sides or faces;

wherein each of said elements in said at least one antenna region is electromagnetically coupled to at least one other of said elements in said at least one antenna region either directly through at least one point of contact or through a small separation providing said coupling;

wherein for at least 75% of said polygonal or polyhedral elements, the region or area of contact or overlap between said polygonal or polyhedral elements is less than 50% of the perimeter or area of said elements;

wherein not all of the polygonal or polyhedral elements have the same size;

wherein the perimeter of the multilevel structure has a different number of sides than the polygonal or polyhedral elements that compose said at least one antenna region;

wherein a plurality of polygons in contact or overlap with contiguous polygons are generally geometrically identifiable by extension of the exposed perimeters of said generally identifiable geometrical shape into said region or area of contact or overlap by extension of ones of the longest exposed perimeters thereof to define a least number of polygons within said at least one antenna region;

wherein said multi-band antenna is entirely inside of a portable communications device;

wherein said portable communications device is a handset;

wherein the multi-band antenna system further includes a matching network connected to an input/output port;

wherein the level of impedance and radiation pattern of said multi-band antenna are similar in several frequency bands so that the multi-band antenna maintains basically the same radio-electric characteristics and functionality in said bands to allow it to operate simultaneously in several frequencies and thereby be able to be shared by several communication services;

wherein said multi-band antenna operates at multiple frequency bands, and wherein at least one of said multiple frequency bands is operating within the 800 MHz-3600 MHz frequency range; and

wherein said portable communications device provides at least one cellular service across the entire 1850-1990 MHz frequency range.

38. The multi-band antenna according to claim 37, wherein the multi-band antenna operates at three or more frequency bands and the multi-band antenna is shared by three or more cellular services.

39. The multi-band antenna set forth in claim 38, wherein said multi-band antenna operates at multiple frequency bands, and wherein at least one of said frequency bands is used by a GSM communication service.

40. The multi-band antenna according to claim 39, wherein said at least one multilevel structure is mounted substantially parallel to a ground plane in a patch antenna configuration.

41. The multi-band antenna according to claim 38, wherein said at least one multilevel structure is mounted in a monopole configuration.

42. The multi-band antenna according to claim 37, wherein said at least one multilevel structure is formed by four-sided polygons.

43. The multi-band antenna, as set forth in claim 42 further including at least one dielectric spacer for separating the at least a section of the multi-band antenna from a ground plane, wherein at least a portion of said dielectric spacer overlaps a dielectric substrate layer placed over the ground plane.

44. The multi-band antenna set forth in claim 43, wherein said multi-band antenna operates at multiple frequency bands, and wherein at least one of said frequency bands is used by a GSM communication service.

45. The multi-band antenna according to claim 44, wherein said at least one multilevel structure is mounted substantially parallel to the ground plane in a patch antenna configuration.

46. The multi-band antenna according to claim 43, wherein said at least one multilevel structure is mounted in a monopole configuration.

47. The multi-band antenna, as set forth in claim 37, wherein the multi-band antenna provides operation over at least three frequency bands having similar impedance levels and radiation patterns, and further wherein the multi-band antenna transmits and receives wireless signals throughout an entire frequency range within each of said at least three frequency bands.

48. The multi-band antenna set forth in claim 47, wherein said multi-band antenna operates at multiple frequency bands, and wherein at least one of said frequency bands is used by a GSM communication service.

49. The multi-band antenna according to claim 48, wherein said at least one multilevel structure is mounted substantially parallel to a ground plane in a patch antenna configuration.

50. The multi-band antenna according to claim 47, wherein said at least one multilevel structure is mounted in a monopole configuration.

51. The multi-band antenna, as set forth in claim 37, wherein the multi-band antenna provides operation on at least four frequency bands having similar impedance levels and radiation patterns, and further wherein the multi-band antenna transmits and receives wireless signals throughout an entire frequency range within each of said at least four frequency bands.

52. The multi-band antenna set forth in claim 51, wherein said multi-band antenna operates at multiple frequency bands, and wherein at least one of said frequency bands is used by a GSM communication service.

53. The multi-band antenna according to claim 52, wherein said at least one multilevel structure is mounted substantially parallel to a ground plane in a patch antenna configuration.

54. The multi-band antenna according to claim 51, wherein said at least one multilevel structure is mounted in a monopole configuration.