Method, system, and apparatus for resonator circuits and modulating resonators

• US 9,041,484 B2
• Filed: 12/09/2011
• Issued: 05/26/2015
• Est. Priority Date: 12/10/2010
• Status: Active Grant

• Current Assignee: pSemi Corporation (Murata Manufacturing Co Limited)
• Original Assignee: Peregrine Semiconductor Corporation (Murata Manufacturing Co Limited)
• Inventors: Burgener, Mark L., Cable, James S.
• Primary Examiner(s): TAKAOKA, DEAN O
• Application Number:
  US13/316,243
• Publication Number:
  US 20120313731A1
• Time in Patent Office: 1,264 Days
• Field of Search: 333/187, 333/188, 333/189, 333/190, 333/191, 333/192, 333/133, 333/101, 333/103, 333/174
• US Class Current: 333/101
• CPC Class Codes: H03H 2003/0071 of bulk acoustic wave and surface acoustic wave elements in the same process
• CPC Class Codes: H03H 2009/02204 operating on an additional circuit element, e.g. applying a tuning DC voltage to a passive circuit element connected to the resonator
• CPC Class Codes: H03H 2210/015 Quality factor or bandwidth
• CPC Class Codes: H03H 2210/025 Capacitor
• CPC Class Codes: H03H 2210/036 Stepwise
• CPC Class Codes: H03H 2210/04 Filter calibration method
• CPC Class Codes: H03H 2240/00 Indexing scheme relating to filter banks
• CPC Class Codes: H03H 2250/00 Indexing scheme relating to dual- or multi-band filters
• CPC Class Codes: H03H 7/38 Impedance-matching networks
• CPC Class Codes: H03H 7/40 Automatic matching of load impedance to source impedance
• CPC Class Codes: H03H 7/46 Networks for connecting several sources or loads, working on different frequencies or frequency bands, to a common load or source for use in multiplex transmission systems H04J1/00
• CPC Class Codes: H03H 7/48 Networks for connecting several sources or loads, working on the same frequency or frequency band, to a common load or source phase shifters providing two or more output signals H03H7/21
• CPC Class Codes: H03H 9/54 comprising resonators of piezoelectric or electrostrictive material H03H9/64 takes precedence
• CPC Class Codes: H03H 9/542 including passive elements H03H9/545 takes precedence
• CPC Class Codes: H03H 9/547 Notch filters, e.g. notch BAW or thin film resonator filters
• CPC Class Codes: H03H 9/64 using surface acoustic waves
• CPC Class Codes: H03H 9/6403 Programmable filters
• CPC Class Codes: H03H 9/6409 SAW notch filters
• CPC Class Codes: H03H 9/6483 Ladder SAW filters
• CPC Class Codes: H03H 9/6489 Compensation of undesirable effects
• CPC Class Codes: H03H 9/706 : Duplexers
• CPC Class Codes: H03H 9/725 : Duplexers
• CPC Class Codes: H03J 2200/10 : Tuning of a resonator by means of digitally controlled capacitor bank

Abstract

Embodiments of resonator circuits and modulating resonators and are described generally herein. One or more acoustic wave resonators may be coupled in series or parallel to generate tunable filters. One or more acoustic wave resonances may be modulated by one or more capacitors or tunable capacitors. One or more acoustic wave modules may also be switchable in a filter. Other embodiments may be described and claimed.

Claims

1. An electrical signal processing system, including:

a first filter module for providing a switchable pass-band and a tunable rejection band, the first filter module comprising;

a first acoustic wave resonator (AWR), the first AWR having a resonant frequency (RFA1) and an anti-resonant frequency (AFA1);

a first switch coupled in series with the first AWR, wherein the first AWR is inoperative when the first switch is opened and active when the first switch is closed;

a second AWR, the second AWR having a resonant frequency (RFA2) different from RFA1, and an anti-resonant frequency (AFA2) different from AFA1;

a second switch coupled in series with the second AWR, wherein the second AWR is inoperative when the second switch is opened and active when the second switch is closed, the series coupled first switch and first AWR coupled in parallel to the series coupled second switch and second AWR;

a first capacitor module coupled in parallel to a) the series coupled first switch and first AWR and b) the series coupled second switch and second AWR, the first capacitor module modifying the transduction of the electrical signal by one of the first AWR and the second AWR when the corresponding one of the first switch and the second switch is closed; and

an inversion module coupled to the first filter module to provide an inversion functionality.

2. The electrical signal processing system of claim 1, wherein the first filter module filters the electrical signal.

3. The electrical signal processing system of claim 2, further including a second filter module with one end coupled to the first filter module and another end coupled to ground, the second filter module comprising a third AWM and a second capacitor arranged to operate in parallel with the third AWM.

4. The electrical signal processing system of claim 3, wherein each of the first and second capacitors is a variable capacitor.

5. The electrical signal processing system of claim 4, wherein the second filter module is coupled to an input side of the first filter module and the inversion module is coupled to an output side of the first filter module.

6. The electrical signal processing system of claim 4, wherein the first filter module is operative as a movable, switchable pass-band and tunable rejection band filter, and the second filter module is operative as a fixed high rejection and tunable pass-band filter.

7. The electrical signal processing system of claim 1, wherein the first capacitor module includes at least two selectable capacitors.

8. The electrical signal processing system of claim 1, wherein the first capacitor module is variable having at least a first capacitance and a second capacitance, wherein the value of the first capacitance is an integer multiple of the value of the second capacitance.

9. The electrical signal processing system of claim 1, wherein the first capacitor module is a variable capacitor.

10. The electrical signal processing system of claim 1, wherein the first AWR has a first resonant frequency and a first anti-resonant frequency, the second AWR having a second resonant frequency and second anti-resonant frequency, the inversion filter comprising two capacitors configured to provide a negative capacitance value and a third capacitor configured to provide a positive capacitance value.

11. The electrical signal processing system of claim 10, wherein the first capacitor module modifies at least:

a) one of the first resonant frequency and the first anti-resonant frequency, and b) one of the second resonant frequency and the second anti-resonant frequency, and further wherein the inversion filter is configured as a K filter.

12. The electrical signal processing system of claim 10 wherein the two capacitors configured to provide the negative capacitance value are coupled in series with each other, and the third capacitor configured to provide the positive capacitance value is coupled to a junction between the first and the second capacitors.

13. An electrical signal processing system, including:

a first acoustic wave resonator (AWR), the AWR having a resonant frequency (RFA1) and an anti-resonant frequency (AFA1);

a first variable capacitor module (FVCM) coupled one of in parallel to the first AWR and serially to the first AWR, the FVCM having a plurality of selectable capacitances configurable for modifying RFA1 and AFA1, the capacitances selectable via a first control line;

a temperature detection module, the temperature detection module providing an indication of the temperature at or near the first AWR;

a memory device containing characteristics data representing at least one of;

a) an anti-resonant frequency probability function representing manufacturing variations for the first AWR and b) a resonant frequency probability function representing manufacturing variations for the first AWR; and

a processor receiving the temperature indication and selecting at least one of the plurality of selectable capacitances via the first control line based at least on one of;

i) the temperature indication obtained from the temperature detection module and ii) the characteristic data obtained by accessing and reading the memory device.

14. The electrical signal processing system of claim 13, the first AWR configured as a filter for filtering the electrical signal.

15. The electrical signal processing system of claim 14, wherein the RFA1 and AFA1 vary as a function of the temperature of at least one of the first AWR and the FVCM.

16. The electrical signal processing system of claim 15, wherein one or more of the plurality of selectable capacitances is selectable for modifying one of the RFA1 and the AFA1.

17. The electrical signal processing system of claim 15, wherein the FVCM is coupled in parallel to the first AWR.

18. The electrical signal processing system of claim 15, wherein the FVCM is coupled serially to the first AWR.

19. The electrical signal processing system of claim 17, further comprising a second variable capacitor module (SVCM) coupled serially to the first AWR, the SVCM having a plurality of selectable capacitances for modifying the RFA1, the capacitances selectable via a second control line and the processor receiving the temperature indication and selecting one of the plurality of SVCM selectable capacitances via the second control line based at least on part on the temperature indication.

20. The electrical signal processing system of claim 19, wherein the FVCM includes at least two selectable capacitors and the SVCM includes at least two selectable capacitors.

21. The electrical signal processing system of claim 19, wherein the FVCM has at least a first capacitance and a second capacitance and the value of the first capacitance is an integer multiple of the value of the second capacitance.

22. The electrical signal processing system of claim 21, wherein the SVCM has at least a first capacitance and a second capacitance and the value of the first capacitance is an integer multiple of the value of the second capacitance.

23. The electrical signal processing system of claim 13, further comprising a second AWR coupled to the first AWR and ground, the second AWR having a resonant frequency (RFA2) and an anti-resonant frequency (AFA2).

24. The electrical signal processing system of claim 23, further comprising a third variable capacitor module (TVCM) coupled one of in parallel to the second AWR and serially to the second AWR, the TVCM having a plurality of selectable capacitances configurable for modifying one of the RFA2 and the AFA2, the capacitances selectable via a third control line, the processor receiving the temperature indication and selecting one of the plurality of TVCM selectable capacitances via the third control line based at least on part on the temperature indication.

25. The electrical signal processing system of claim 24, the RFA1 creating an effective passband and the AFA1 creating an effective stopband and the AFA2 creating an effective passband and the RFA2 creating an effective stopband.

26. The electrical signal processing system of claim 25, the combination of the first AWR and the second AWR forming one of a bandpass filter and a band reject filter.

27. The electrical signal processing system of claim 25, wherein the combination of the first AWR, the FVCM, the second AWR, and the TVCM form one of a tunable bandpass filter and a band reject filter.

28. The electrical signal processing system of claim 13, wherein the processor receives a FVCM capacitance selection signal and the processor selecting one of the plurality of FVCM selectable capacitances via the first control line based further on the FVCM capacitance selection signal.

29. The electrical signal processing system of claim 13, wherein the processor includes temperature variation data for the first AWR and the processor selects one of the plurality of FVCM selectable capacitances via the first control line based further on the first AWR temperature variation data.

30. The electrical signal processing system of claim 24, wherein the processor includes temperature variation data for the second AWR and the processor selects one of the plurality of TVCM selectable capacitances via the third control line based further on the second AWR temperature variation data.

31. The electrical signal processing system of claim 13, the memory device further containing characteristics data representing at least one of:

iii) possible resonant and anti-resonant frequencies for the first AWR, and iv) a delta between optimal and probable resonant and anti-resonant frequencies for the first AWR based on temperature values.

32. The electrical signal processing system of claim 13, the memory device containing characteristics data representing the anti-resonant frequency probability function representing manufacturing variations for the first AWR.

33. An electrical signal processing system, including:

a first acoustic wave resonator (AWR);

a first switch coupled in parallel to the first AWR, the first switch bypassing the first AWR when closed, the first AWR filtering electrical signals when the first switch is open and the first AWR having a resonant frequency (RFA1) and an anti-resonant frequency (AFA1);

a second AWR, the second AWR serially coupled to the first AWR; and

a second switch coupled in parallel to the second AWR, the second switch bypassing the second AWR when closed, the second AWR filtering electrical signals when the second switch is open and the second AWR having a resonant frequency (RFA2) and an anti-resonant frequency (AFA2), wherein the RFA1 and RFA2 are offset in frequency; and

a third AWR, the third AWR coupled between the serial coupling of the first AWR and the second AWR and to ground, the third AWR filtering electrical signals and having a) a resonant frequency (RFA3) creating an effective stopband and b) an anti-resonant frequency (AFA3) creating an effective passband, the combination of the first AWR and the third AWR forming a bandpass filter when the first switch is open and the second switch is closed and the combination of the second AWR and the third AWR forming a band reject filter when the first switch is closed and the second switch is open.

34. The electrical signal processing system of claim 33, wherein the RFA1 has a frequency magnitude and the offset in frequency is greater than 5% of the RFA1 frequency magnitude.

35. The electrical signal processing system of claim 34, wherein the RFA1 has a frequency magnitude and the offset in frequency is greater than 10% of the RFA1 frequency magnitude.

36. The electrical signal processing system of claim 33, further comprising a first capacitor module (FCM) coupled one of in parallel to the first AWR and serially to the first AWR, the FCM modifying one of the RFA1 and AFA1.

37. The electrical signal processing system of claim 36, further comprising a second capacitor module (SCM) coupled one of in parallel to the second AWR and serially to the second AWR, the SCM modifying one of the RFA2 and AFA2.

38. The electrical signal processing system of claim 33, further comprising a first capacitor module (FCM) coupled in parallel to the serial combination of the first AWR and the second AWR, the FCM modifying the AFA1 and the AFA2.

39. The electrical signal processing system of claim 38, further comprising a second capacitor module (SCM) coupled serially to the first AWR, the SCM modifying the RFA1.

40. The electrical signal processing system of claim 33, further comprising a first variable capacitor module (FVCM) coupled one of in parallel to the first AWR and serially to the first AWR, the FVCM variably modifying one of the RFA1 and AFA1.

41. The electrical signal processing system of claim 40, further comprising a second variable capacitor module (SVCM) coupled one of in parallel to the second AWR and serially to the second AWR, the SVCM variably modifying one of the RFA2 and AFA2.

42. The electrical signal processing system of claim 33, further comprising a first variable capacitor module (FVCM) coupled in parallel to the serial combination of the first AWR and the second AWR, the FVCM variably modifying the AFA1 and the AFA2.

43. The electrical signal processing system of claim 42, further comprising a second variable capacitor module (SVCM) coupled serially to the first AWR, the SVCM variably modifying the RFA1.

44. The electrical signal processing system of claim 40, wherein the FVCM is variable having at least a first capacitance and a second capacitance, wherein the value of the first capacitance is an integer multiple of the value of the second capacitance.

45. The electrical signal processing system of claim 42, the combination of the first AWR, the FVCM, and the third AWR forming a first variable filter when the first switch is open and the second switch is closed and the combination of the second AWR, the FVCM, and the third AWR forming a second variable filter when the first switch is closed and the second switch is open.

46. The electrical signal processing system of claim 41, the combination of the first AWR, the FVCM, and the third AWR forming a first variable filter when the first switch is open and the second switch is closed and the combination of the second AWR, the SVCM, and the third AWR forming a second variable filter when the first switch is closed and the second switch is open.

47. An electrical signal processing system, including:

a switchable pass-band and tunable rejection band filter module, comprising;

a first acoustic wave resonator (AWR);

a first switch coupled serially to the first AWR, the first AWR is inoperative when the first switch is opened and active when the first switch is closed, the first AWR having a resonant frequency (RFA1) and an anti-resonant frequency (AFA1);

a second acoustic wave AWR;

a second switch coupled serially to the second AWR, wherein the second AWR is inoperative when the second switch is opened and active when the second switch is closed, the series coupled first switch and first AWR coupled in parallel to the series coupled second switch and second AWR, the second AWR having a resonant frequency (RFA2) and an anti-resonant frequency (AFA2), wherein the RFA1 and RFA2 are offset in frequency; and

a first variable capacitor coupled in parallel to the combination of the first AWR coupled serially to the first switch and to the combination of the second AWR coupled serially to the second switch, the first variable capacitor used for varying at least one of the AFA1 and the AFA2 to configure the switchable pass-band and tunable rejection band filter module; and

a tunable filter module, comprising;

a third AWR, the third AWR coupled to the first AWR and the second AWR and to ground, the third AWR filtering electrical signals and having a resonant frequency (RFA3) creating an effective stopband and an anti-resonant frequency (AFA3) creating an effective passband; and

a second variable capacitor coupled in parallel to the third AWR, the second variable capacitor used for varying the AFA3 to configure the tunable filter module.

48. The electrical signal processing system of claim 47, wherein the RFA1 has a frequency magnitude and the offset in frequency is greater than 5% of the RFA1 frequency magnitude.

49. The electrical signal processing system of claim 48, wherein the RFA1 has a frequency magnitude and the offset in frequency is greater than 10% of the RFA1 frequency magnitude.

50. The electrical signal processing system of claim 47, the RFA1 creating an effective passband and the AFA1 creating an effective stopband when the first switch is closed and the RFA2 creating an effective passband and the AFA2 creating an effective stopband when the second switch is closed.

51. The electrical signal processing system of claim 47, the combination of the first AWR and the third AWR forming a first filter when the first switch is closed and the second switch is open and the combination of the second AWR and the third AWR forming a second filter when the first switch is open and the second switch is closed.

52. An electrical signal processing system, including:

a fixed filter comprising a first acoustic wave resonator (AWR), the first AWR filtering electrical signals and the first AWR having a resonant frequency (RFA1) and an anti-resonant frequency (AFA1);

a tunable filter having a tunable frequency response that includes a desirable passband and an undesirable passband the tunable filter comprising a second AWR, the second AWR serially coupled to the first AWR for eliminating the undesirable passband, the second AWR filtering electrical signals, and the second AWR having a resonant frequency (RFA2) and an anti-resonant frequency (AFA2); and

a first variable capacitor module (FVCM) coupled in parallel to the second AWR, the FVCM having a plurality of selectable capacitances, the capacitances selectable via a first control line, and the FVCM variably modifying the AFA2, wherein the AFA1 of the first AWR in the fixed filter varies based on temperature, wherein variably modifying the AF2 corrects for the temperature variation.

53. The electrical signal processing system of claim 52, further comprising a processor, the processor selecting one of the plurality of FVCM selectable capacitances via the first control line to shift AFA2 based on AFA1.

54. The electrical signal processing system of claim 53, further comprising a temperature detection module providing an indication of the temperature at or near the first AWR and the processor selecting one of the plurality of FVCM selectable capacitances via the first control line to shift AFA2 based at least on part on the temperature indication.

55. The electrical signal processing system of claim 53, further comprising:

a first switch coupled serially to the second AWR, the first switch disconnecting the second AWR when open, the second AWR filtering electrical signals when the first switch is closed;

a third AWR; and

a second switch coupled serially to the third AWR, the second switch disconnecting the third AWR when open, the third AWR filtering electrical signals when the second switch is closed and the third AWR having a resonant frequency (RFA3) and an anti-resonant frequency (AFA3), wherein the RFA2 and RFA3 are offset in frequency and the combination of the second AWR serially coupled to the first switch is parallel to the to the combination of the first AWR serially coupled to the second switch.

56. The electrical signal processing system of claim 54, further comprising a second capacitor module (SCM) coupled serially to the second AWR, the SCM modifying the RFA2.

57. The electrical signal processing system of claim 55, further comprising a second variable capacitor module (SVCM) coupled one of in parallel to the third AWR and serially to the third AWR, the SVCM variably modifying one of the RFA2 and AFA2.

58. The electrical signal processing system of claim 55, wherein the first variable capacitor module (FVCM) is coupled in parallel to the combination of the second AWR serially coupled to the first switch and to the combination of the third AWR serially coupled to the second switch, the FVCM variably modifying the AFA2 and the AFA3.

59. The electrical signal processing system of claim 58, further comprising a second variable capacitor module (SVCM) coupled serially to the second AWR, the SVCM variably modifying the RFA2.

60. The electrical signal processing system of claim 59, the RFA2 creating an effective passband and the AFA2 creating an effective stopband when the first switch is closed and the RFA3 creating an effective passband and the AFA3 creating an effective stopband when the second switch is closed.

61. The electrical signal processing system of claim 52, wherein the FVCM has at least a first capacitance and a second capacitance, wherein the value of the first capacitance is an integer multiple of the value of the second capacitance.

62. The electrical signal processing system of claim 55, further comprising a fourth AWR, the fourth AWR coupled to the second AWR and the third AWR and to ground, the fourth AWR filtering electrical signals and the fourth AWR having a resonant frequency (RFA4) and an anti-resonant frequency (AFA4) and the AFA4 creating an effective passband and the RFA4 creating an effective stopband.

63. The electrical signal processing system of claim 62, the combination of the first AWR, the second AWR, the FVCM, and the fourth AWR forming a first filter when the first switch is closed and the second switch is open and the combination of the first AWR, the third AWR and the fourth AWR forming a second filter when the first switch is open and the second switch is closed.

64. The electrical signal processing system of claim 58, further comprising a fourth AWR, the fourth AWR coupled to the second AWR and the third AWR and to ground, the fourth AWR filtering electrical signals and the fourth AWR having a resonant frequency (RFA4) and an anti-resonant frequency (AFA4) and the AFA4 creating an effective passband and the RFA4 creating an effective stopband, and the combination of the first AWR, the second AWR, the FVCM, and the fourth AWR forming a first variable filter when the first switch is closed and the second switch is open and the combination of the first AWR, the third AWR, the FVCM, and the fourth AWR forming a second variable filter when the first switch is open and the second switch is closed.

65. The electrical signal processing system of claim 52, further comprising a fifth acoustic wave AWR coupled serially to the first switch and in parallel to the second AWR, the first switch shorting the second AWR and the fifth AWR when open, the fifth AWR filtering electrical signals when the first switch is closed and the fifth AWR having a resonant frequency (RFA5) and an anti-resonant frequency (AFA5).

66. The electrical signal processing system of claim 65, further comprising a sixth AWR coupled serially to the second switch and in parallel to the third AWR, the second switch shorting the third AWR and the sixth AWR when open, the sixth AWR filtering electrical signals when the second switch is closed and the sixth AWR having a resonant frequency (RFA6) and an anti-resonant frequency (AFA6).

67. The electrical signal processing system of claim 65, wherein the RFA2 has a frequency magnitude and the offset in frequency between RFA2 and RFA5 is greater than 10% of the RFA2 frequency magnitude.

68. The electrical signal processing system of claim 66, wherein the RFA3 has a frequency magnitude and the offset in frequency between RFA3 and RFA6 is greater than 10% of the RFA3 frequency magnitude.

69. The electrical signal processing system of claim 57, wherein the SVCM plurality of selectable capacitances are selectable via a second control line and the processor selects one of the plurality of SVCM selectable capacitances via the second control line to shift AFA3.

70. The electrical signal processing system of claim 69, further comprising a temperature detection module providing an indication of the temperature at or near the third AWR and the processor selects one of the plurality of SVCM selectable capacitances via the second control line to shift AFA3 based at least on part on the temperature indication.

71. The electrical signal processing system of claim 57, wherein the processor includes temperature variation data for the second AWR and the processor selects one of the plurality of FVCM selectable capacitances via the first control line based at least on part on the temperature indication and the second AWR temperature variation data.

72. An electrical signal processing system, including:

a first acoustic wave resonator (AWR), the AWR having a resonant frequency (RFA1) and an anti-resonant frequency (AFA1);

a first variable capacitor module (FVCM) coupled one of in parallel to the first AWR and serially to the first AWR, the FVCM having a plurality of selectable capacitances configurable for modifying RFA1 and AFA1, the capacitances selectable via a first control line;

a memory device having stored thereon, statistical data representing at least one of;

a) an anti-resonant frequency probability function representing manufacturing variations for the first AWR and b) a resonant frequency probability function representing manufacturing variations for the first AWR; and

a processor selecting at least one of the plurality of selectable capacitances via the first control line based at least in part on the stored statistical data.

73. The electrical signal processing system of claim 72, the first AWR configured as a filter for filtering the electrical signal.

74. The electrical signal processing system of claim 73, the FVCM coupled in parallel to the first AWR.

75. The electrical signal processing system of claim 73, further comprising a temperature detection module, the temperature detection module providing an indication of the temperature at or near the first AWR, and the processor receiving the temperature indication and selecting one of the plurality of FVCM selectable capacitances via the first control line further based.

76. The electrical signal processing system of claim 74, comprising a second variable capacitor module (SVCM) coupled serially to the first AWR, the SVCM having a plurality of selectable capacitances for modifying the RFA1, the capacitances selectable via a second control line and the processor selecting one of the plurality of SVCM selectable capacitances via the second control line based at least on part on at the stored statistical data.

77. The electrical signal processing system of claim 76, wherein the FVCM has at least a first capacitance and a second capacitance and the value of the first capacitance is an integer multiple of the value of the second capacitance.

78. The electrical signal processing system of claim 76, wherein the SVCM has at least a first capacitance and a second capacitance and the value of the first capacitance is an integer multiple of the value of the second capacitance.

79. The electrical signal processing system of claim 72, further comprising a second AWR coupled to the first AWR and ground, the second AWR having a resonant frequency (RFA2) and an anti-resonant frequency (AFA2).

80. The electrical signal processing system of claim 79, further comprising a third variable capacitor module (TVCM) coupled one of in parallel to the second AWR and serially to the second AWR, the TVCM having a plurality of selectable capacitances configurable for modifying one of the RFA2 and the AFA2, the capacitances selectable via a third control line, the processor selecting one of the plurality of TVCM selectable capacitances via the third control line based at least on part on the stored statistical data.

81. The electrical signal processing system of claim 79, the RFA1 creating an effective passband and the AFA1 creating an effective stopband and the AFA2 creating an effective passband and the RFA2 creating an effective stopband.

82. The electrical signal processing system of claim 81, the combination of the first AWR and the second AWR forming one of a bandpass filter and a band reject filter.

83. The electrical signal processing system of claim 81, wherein the combination of the first AWR, the FVCM, the second AWR, and the TVCM form one of a tunable bandpass filter and a band reject filter.

84. The electrical signal processing system of claim 72, wherein the processor receives a FVCM capacitance selection signal and the processor selecting one of the plurality of FVCM selectable capacitances via the first control line further based the FVCM capacitance selection signal.

85. An electrical signal processing system, including:

a tunable filter module comprising a first variable capacitor module (FVCM) coupled one of in parallel to a first acoustic wave resonator (AWR) and serially to the first AWR, the FVCM having a plurality of selectable capacitances, the capacitances selectable via a first control line;

a memory device having stored thereon, variable capacitor deltas for various voltage standing wave ratios, the voltage standing wave ratios related to ratios between target input and output impedances for the tunable filter module; and

a control logic module configured for using the memory device to select at least one of the plurality of selectable capacitances via the first control line based at least on part on the variable capacitor deltas stored in the memory device and a derived voltage standing wave ratios differential,

wherein the first AWR is configured as a filter for filtering an electrical signal and having a resonant frequency (RFA1) and an anti-resonant frequency (AFA1) modifiable by configuring the plurality of selectable capacitances of the FVCM.

86. The electrical signal processing system of claim 85, the FVCM coupled in parallel to the first AWR.

87. The electrical signal processing system of claim 85, further comprising an output impedance detection module, the output impedance detection module sensing a coupled output impedance at the first AWR and providing an indication of the coupled output impedance at the first AWR to the control logic module, the control logic module deriving the voltage standing wave ratios differential based on the indication and selecting the at least one of the plurality of selectable capacitances via the first control line based on the differential.

88. The electrical signal processing system of claim 86, further comprising a second variable capacitor module (SVCM) coupled serially to the first AWR, the SVCM having a plurality of selectable capacitances for modifying the RFA1, the capacitances selectable via a second control line.

89. The electrical signal processing system of claim 88, the control logic module selecting one of the plurality of SVCM selectable capacitances via the second control line based at least on part on the output impedance indication and at the stored output impedance data.

90. The electrical signal processing system of claim 88, wherein the FVCM has at least a first capacitance and a second capacitance and the value of the first capacitance is an integer multiple of the value of the second capacitance.

91. The electrical signal processing system of claim 88, wherein the SVCM has at least a first capacitance and a second capacitance and the value of the first capacitance is an integer multiple of the value of the second capacitance.

92. The electrical signal processing system of claim 85, further comprising a second AWR, the second AWR coupled to the first AWR and to ground, the second AWR having a resonant frequency (RFA2) and an anti-resonant frequency (AFA2).

93. The electrical signal processing system of claim 92, further comprising a third variable capacitor module (TVCM) coupled one of in parallel to the second AWR and serially to the second AWR, the TVCM having a plurality of selectable capacitances for modifying one of the RFA2 and the AFA2, the capacitances selectable via a third control line.

94. The electrical signal processing system of claim 92, the RFA1 creating an effective passband and the AFA1 creating an effective stopband and the AFA2 creating an effective passband and the RFA2 creating an effective stopband.

95. The electrical signal processing system of claim 91, the combination of the first AWR and the second AWR forming one of a bandpass filter and a band reject filter.

96. The electrical signal processing system of claim 91, wherein the combination of the first AWR, the FVCM, the second AWR, and the TVCM form one of a tunable bandpass filter and a band reject filter.

97. The electrical signal processing system of claim 91, wherein the control logic module receives a FVCM capacitance selection signal and the processor selecting one of the plurality of FVCM selectable capacitances via the first control line based at least on part on the stored output impedance data and the FVCM capacitance selection signal.