Method and system for mobile receiver antenna architecture for US band cellular and broadcasting services

• US 7,430,438 B2
• Filed: 12/13/2004
• Issued: 09/30/2008
• Est. Priority Date: 12/13/2004
• Status: Expired due to Fees

• Current Assignee: Avago Technologies General IP PTE Limited (Broadcom, Inc.)
• Original Assignee: Broadcom Corporation (Broadcom, Inc.)
• Inventors: van Rooyen, Pieter Gert Wessel
• Primary Examiner(s): SHARMA, SUJATHA R
• Application Number:
  US11/010,487
• Publication Number:
  US 20060128421A1
• Time in Patent Office: 1,387 Days
• Field of Search: 455/552.1, 455/3.02, 455/556.1, 455/3.04, 455/418, 455/431, 455/426.1, 455/3.01, 455/456.1, 455/414.1, 455/12.1, 455/413, 455/575.7, 725/112, 725/109, 725/138, 725 75- 77, 725/1, 725/30, 725/153, 725/73
• US Class Current: 455/552.1
• CPC Class Codes: H04B 1/0057 using diplexing or multiplexing filters for selecting the desired band
• CPC Class Codes: H04B 1/406 with more than one transmission mode, e.g. analog and digital modes

Abstract

A method for an antenna architecture that handles US band cellular and broadcast channels may be provided. The method may comprise receiving at a first radio frequency integrated circuit (RFIC) integrated within a mobile terminal, first signals via a first antenna, where the first signals comprise signals within a 1900 MHz band. The method may further comprise receiving at a second RFIC integrated within the mobile terminal, second signals via the first antenna, where the second signals comprise signals within at least one of a 1900 MHz band and a 850 MHz band and receiving at a third RFIC integrated within the mobile terminal, third signals via the first antenna, where the third signals comprise signals within a VHF/UHF broadcast band.

Claims

1. A system for an antenna architecture that handles US band cellular and broadcast channels, the system comprising:

a first radio frequency integrated circuit (RFIC) integrated within a mobile terminal coupled to at least a first antenna capable of handling signals within a 1900 MHz band;

a second RFIC integrated within said mobile terminal coupled to said first antenna capable of handling signals within at least one of a 1900 MHz band and a 850 MHz band; and

a third RFIC integrated within said mobile terminal coupled to said first antenna capable of handling signals within a VHF and/or UHF broadcast band.

2. The system according to claim 1, wherein said first RFIC is a WCDMA/HSDPA RFIC.

3. The system according to claim 1, wherein said second RFIC is a GSM RFIC.

4. The system according to claim 1, wherein said third RFIC is a DVB RFIC.

5. The system according to claim 1, comprising a diplexer and a first switch, wherein said first RFIC is coupled to said first antenna via said first switch and said diplexer.

6. The system according to claim 5, wherein said second RFIC is coupled to said first antenna via said first switch and said diplexer.

7. The system according to claim 6, comprising a second switch, wherein said third RFIC is coupled to said first antenna via said second switch and said diplexer.

8. The system according to claim 7, wherein said second RFIC is coupled to said first antenna via said second switch and said diplexer.

9. The system according to claim 1, comprising a first amplifier, wherein an output of said first RFIC is coupled to an input of at least said first amplifier.

10. The system according to claim 9, comprising a first polyphase filter, wherein an output of said first amplifier is coupled to an input of at least said first polyphase filter.

11. The system according to claim 10, comprising an output of said first polyphase filter coupled to an input of a first switch.

12. The system according to claim 11, comprising a second polyphase filter, wherein an output of said first switch is coupled to an input of at least said second polyphase filter.

13. The system according to claim 12, comprising a second amplifier, wherein an output of said second polyphase filter is coupled to an input of at least said second amplifier.

14. The system according to claim 13, comprising a third polyphase filter, wherein an output of said second amplifier is coupled to an input of at least said third polyphase filter.

15. The system according to claim 14, comprising a first divider, wherein an output of said third polyphase filter is coupled to an input of said first divider.

16. The system according to claim 15, comprising an output of said first divider coupled to an input of said first RFIC capable of handling signals within said 1900 MHz band and an input of said second RFIC capable of handling signals within said 1900 MHz band.

17. The system according to claim 1, comprising a third amplifier, wherein an output of said second RFIC is coupled to an input of at least said third amplifier.

18. The system according to claim 17, comprising an output of said third amplifier coupled to an input of a first switch in a transmit path capable of handling signals within said 1900 MHz band.

19. The system according to claim 18, wherein said third amplifier is a power amplifier.

20. The system according to claim 1, comprising a fourth amplifier, wherein an output of said second RFIC is coupled to an input of at least said fourth amplifier.

21. The system according to claim 20, wherein said fourth amplifier is a power amplifier.

22. The system according to claim 1, comprising a fifth amplifier, wherein an output of said second RFIC is coupled to an input of at least said fifth amplifier.

23. The system according to claim 22, comprising a fourth polyphase filter, wherein an output of said fifth amplifier is coupled to an input of at least said fourth polyphase filter.

24. The system according to claim 23, comprising an output of said fourth polyphase filter coupled to an input of a second switch.

25. The system according to claim 24, comprising a fifth polyphase filter, wherein an output of said second switch is coupled to an input of at least said fifth polyphase filter.

26. The system according to claim 25, comprising a sixth amplifier, wherein an output of said fifth polyphase filter is coupled to an input of at least said sixth amplifier.

27. The system according to claim 26, comprising a sixth polyphase filter, wherein an output of said sixth amplifier is coupled to an input of at least said sixth polyphase filter.

28. The system according to claim 27, comprising a second divider, wherein an output of said sixth polyphase filter is coupled to an input of said second divider.

29. The system according to claim 28, comprising an output of said second divider coupled to an input of said first RFIC capable of handling signals within said 850 MHz band and an input of said second RFIC capable of handling signals within said 850 MHz band.

30. The system according to claim 29, wherein said output of said second switch coupled to an input of said third RFIC.

31. The system according to claim 1, wherein said first antenna coupled to an input of said third RFIC.

32. The system according to claim 1, comprising a first switch and a second antenna, wherein said second antenna is coupled to said first RFIC via said first switch.

33. The system according to claim 32, wherein said second antenna is coupled to said second RFIC via said first switch.

34. The system according to claim 33, wherein said third antenna is coupled to said second RFIC via a second switch.

35. The system according to claim 34, wherein said second antenna is coupled to an input of said first switch.

36. The system according to claim 35, wherein said third antenna is coupled to an input of said second switch.

37. The system according to claim 1, comprising a fourth antenna and a fourth polyphase filter, wherein said fourth antenna is coupled to said first RFIC via said fourth polyphase filter in a transmit path capable of handling signals within said 850 MHz band.

38. The system according to claim 37, comprising a fifth polyphase filter, wherein said fourth antenna is coupled to said first RFIC and said second RFIC via said fifth polyphase filter in a receive path capable of handling signals within said 850 MHz band.

39. The system according to claim 38, wherein said fourth antenna is coupled to an input of said fifth polyphase filter.

40. The system according to claim 1, comprising a fifth antenna and a fourth amplifier, wherein said fifth antenna is coupled to said second RFIC via said fourth amplifier in a transmit path capable of handling signals within said 850 MHz band.

41. The system according to claim 40, comprising an output of said fourth amplifier coupled to said fifth antenna.

42. The system according to claim 1, comprising a sixth antenna and a first polyphase filter, wherein said sixth antenna is coupled to said first RFIC via said first polyphase filter in a transmit path capable of handling signals within said 1900 MHz band.

43. The system according to claim 42, comprising a second polyphase filter, wherein said sixth antenna is coupled to said first RFIC and said second RFIC via said second polyphase filter in a receive path capable of handling signals within said 1900 MHz band.

44. The system according to claim 43, wherein said sixth antenna is coupled to an input of said second polyphase filter.

45. The system according to claim 1, comprising a seventh antenna and a third amplifier, wherein said seventh antenna is coupled to said second RFIC via said third amplifier in a transmit path capable of handling signals within said 1900 MHz band.

46. The system according to claim 45, comprising an output of said third amplifier coupled to said seventh antenna.

47. The system according to claim 1, comprising an eighth antenna, a sixth amplifier and a sixth polyphase filter, wherein said eighth antenna is coupled to said first RFIC and said second RFIC via said sixth amplifier and said sixth polyphase filter in a receive path capable of handling signals within said 850 MHz band.

48. The system according to claim 47, wherein said sixth amplifier is a low noise amplifier.

49. The system according to claim 1, comprising a ninth antenna and a fifth amplifier, wherein said ninth antenna is coupled to said first RFIC via said fifth amplifier in a transmit path capable of handling signals within said 850 MHz band.

50. The system according to claim 49, wherein said fifth amplifier is a power amplifier.

51. The system according to claim 1, comprising a tenth antenna, a second amplifier and a third polyphase filter, wherein said tenth antenna is coupled to said first RFIC and said second RFIC via said second amplifier and said third polyphase filter in a receive path capable of handling signals within said 1900 MHz band.

52. The system according to claim 51, wherein said second amplifier is a low noise amplifier.

53. The system according to claim 1, comprising an eleventh antenna and a first amplifier, wherein said eleventh antenna is coupled to said first RFIC via said first amplifier in a transmit path capable of handling signals within said 1900 MHz band.

54. The system according to claim 53, wherein said first amplifier is a power amplifier.

55. A method for an antenna architecture that handles US band cellular and broadcast channels, the method comprising:

receiving at a first radio frequency integrated circuit (RFIC) integrated within a mobile terminal, first signals via a first antenna, said first signals comprising signals within a 1900 MHz band;

receiving at a second RFIC integrated within said mobile terminal, second signals via said first antenna, said second signals comprising signals within at least one of a 1900 MHz band and a 850 MHz band; and

receiving at a third RFIC integrated within said mobile terminal, third signals via said first antenna, said third signals comprising signals within a VHF and/or UHF broadcast band.

56. The method according to claim 55, wherein said first RFIC is a WCDMA/HSDPA RFIC.

57. The method according to claim 55, wherein said second RFIC is a GSM RFIC.

58. The method according to claim 55, wherein said third RFIC is a DVB RFIC.