Method and system for bandwidth enhancement using hybrid inductors
View Patent ↗A method and system for bandwidth enhancement using hybrid inductors are disclosed and may include providing an electrical impedance that increases with frequency via hybrid inductors comprising a transistor, a capacitor, an inductor, and a resistor. A first terminal of the hybrid inductors may comprise a first terminal of the transistor. A second terminal of the transistor may be coupled to a first terminal of the resistor and a first terminal of the capacitor. A second terminal of the resistor may comprise a second terminal of the hybrid inductors. A third terminal of the transistor may be coupled to a first terminal of an inductor, and a second terminal of the inductor may be coupled to a second terminal of the capacitor. The hybrid inductors may be configured by varying transconductance, resistance, and/or capacitance and may be utilized as an amplifier load.
1. A method for processing signals, the method comprising:
in an electrical circuit, providing an electrical impedance that increases with frequency utilizing one or more hybrid inductors comprising a transistor coupled to a capacitor, an inductor, and a resistor, wherein:
a first terminal of said one or more hybrid inductors comprises a first terminal of said transistor;
a second terminal of said transistor is coupled to a first terminal of said resistor and a first terminal of said capacitor;
a second terminal of said resistor comprises a second terminal of said one or more hybrid inductors;
a third terminal of said transistor is coupled to a first terminal of an inductor; and
a second terminal of said inductor is coupled to a second terminal of said capacitor and comprises a third terminal of said one or more hybrid inductors.
2. The method according to claim 1 , comprising configuring an impedance of said one or more hybrid inductors by varying a transconductance of said transistor.
3. The method according to claim 1 , comprising configuring an impedance of said one or more hybrid inductors by varying a resistance of said resistor.
4. The method according to claim 1 , comprising configuring an impedance of said one or more hybrid inductors by varying a capacitance of said capacitor.
5. The method according to claim 1 , comprising applying a constant voltage to said second terminal of said one or more hybrid inductors.
6. The method according to claim 1 , comprising biasing said transistor during large signal operation by supplying current to said third terminal of said transistor utilizing a current source.
7. The method according to claim 1 , comprising amplifying signals utilizing said one or more hybrid inductors as a load of one or more amplifiers.
8. The method according to claim 7 , wherein said one or more amplifiers comprise differential amplifiers.
9. The method according to claim 1 , wherein said transistor comprises a MOSFET.
10. The method according to claim 1 , wherein said inductor comprises a passive inductor.
11. A system for processing signals, the system comprising:
one or more circuits that provides an electrical impedance that increases with frequency, wherein said one or more circuits comprises one or more hybrid inductors having a transistor coupled to a capacitor, an inductor, and a resistor, and wherein:
a first terminal of said one or more hybrid inductors comprises a first terminal of said transistor;
a second terminal of said transistor is coupled to a first terminal of said resistor and a first terminal of said capacitor;
a second terminal of said resistor comprises a second terminal of said one or more hybrid inductors;
a third terminal of said transistor is coupled to a first terminal of an inductor; and
a second terminal of said inductor is coupled to a second terminal of said capacitor and comprises a third terminal of said one or more hybrid inductors.
12. The system according to claim 11 , wherein said one or more circuits is operable to configure an impedance of said one or more hybrid inductors by varying a transconductance of said transistor.
13. The system according to claim 11 , wherein said one or more circuits is operable to configure an impedance of said one or more hybrid inductors by varying a resistance of said resistor.
14. The system according to claim 11 , wherein said one or more circuits is operable to configure an impedance of said one or more hybrid inductors by varying a capacitance of said capacitor.
15. The system according to claim 11 , wherein said one or more circuits is operable to apply a constant voltage to said second terminal of said one or more hybrid inductors.
16. The system according to claim 11 , wherein said one or more circuits is operable to apply a constant voltage to bias said transistor during large signal operation by supplying current to said third terminal of said transistor utilizing a current source.
17. The system according to claim 11 , wherein said one or more circuits is operable to apply a constant voltage to amplifying signals utilizing said one or more hybrid inductors as a load of one or more amplifiers.
18. The system according to claim 17 , wherein said one or more amplifiers comprise differential amplifiers.
19. The system according to claim 11 , wherein said transistor comprises a MOSFET.
20. The system according to claim 11 , wherein said inductor comprises a passive inductor.
21. A method for processing signals, the method comprising:
in an electrical circuit:
providing an electrical impedance that increases with frequency utilizing one or more hybrid inductors comprising a transistor coupled to a capacitor, an inductor, and a resistor; and
configuring an impedance of said one or more hybrid inductors by varying a resistance of said resistor
22. The method according to claim 21 , comprising configuring an impedance of said one or more hybrid inductors by varying a capacitance of said capacitor.
23. The method according to claim 21 , comprising applying a constant voltage to said second terminal of said one or more hybrid inductors.
24. The method according to claim 21 , comprising amplifying signals utilizing said one or more hybrid inductors as a load of one or more amplifiers.
25. The method according to claim 24 , wherein said one or more amplifiers comprise differential amplifiers.
26. The method according to claim 21 , wherein said transistor comprises a MOSFET.
27. The method according to claim 21 , wherein said inductor comprises a passive inductor.
28. A system for processing signals, the system comprising:
one or more circuits that provides an electrical impedance that increases with frequency, wherein:
said one or more circuits comprises one or more hybrid inductors having a transistor coupled to a capacitor, an inductor, and a resistor; and
said one or more circuits is operable to configure an impedance of said one or more hybrid inductors by varying a resistance of said resistor.
29. The system according to claim 28 , wherein said one or more circuits is operable to configure an impedance of said one or more hybrid inductors by varying a capacitance of said capacitor.
30. The system according to claim 28 , wherein said one or more circuits is operable to apply a constant voltage to said second terminal of said one or more hybrid inductors.
31. The system according to claim 28 , wherein said one or more circuits is operable to apply a constant voltage to amplifying signals utilizing said one or more hybrid inductors as a load of one or more amplifiers.
32. The system according to claim 31 , wherein said one or more amplifiers comprise differential amplifiers.
33. The system according to claim 28 , wherein said transistor comprises a MOSFET.
34. The system according to claim 28 , wherein said inductor comprises a passive inductor.
35. A method for processing signals, the method comprising:
in an electrical circuit:
providing an electrical impedance that increases with frequency utilizing one or more hybrid inductors comprising a transistor coupled to a capacitor, an inductor, and a resistor; and
configuring an impedance of said one or more hybrid inductors by varying a capacitance of said capacitor.
36. The method according to claim 35 , comprising amplifying signals utilizing said one or more hybrid inductors as a load of one or more amplifiers.
37. The method according to claim 36 , wherein said one or more amplifiers comprise differential amplifiers.
38. The method according to claim 35 , wherein said transistor comprises a MOSFET.
39. The method according to claim 35 , wherein said inductor comprises a passive inductor.
40. A system for processing signals, the system comprising:
one or more circuits that provides an electrical impedance that increases with frequency, wherein:
said one or more circuits comprises one or more hybrid inductors having a transistor coupled to a capacitor, an inductor, and a resistor; and
said one or more circuits is operable to configure an impedance of said one or more hybrid inductors by varying a capacitance of said capacitor.
41. The system according to claim 40 , wherein said one or more circuits is operable to apply a constant voltage to amplifying signals utilizing said one or more hybrid inductors as a load of one or more amplifiers.
42. The system according to claim 41 , wherein said one or more amplifiers comprise differential amplifiers.
43. The system according to claim 40 , wherein said transistor comprises a MOSFET.
44. The system according to claim 40 , wherein said inductor comprises a passive inductor.
45. A method for processing signals, the method comprising:
in an electrical circuit:
providing an electrical impedance that increases with frequency utilizing one or more hybrid inductors comprising a transistor coupled to a capacitor, an inductor, and a resistor; and
biasing said transistor during large signal operation by supplying current to said third terminal of said transistor utilizing a current source.
46. The method according to claim 45 , comprising amplifying signals utilizing said one or more hybrid inductors as a load of one or more amplifiers.
47. The method according to claim 46 , wherein said one or more amplifiers comprise differential amplifiers.
48. The method according to claim 45 , wherein said transistor comprises a MOSFET.
49. The method according to claim 45 , wherein said inductor comprises a passive inductor.
50. A system for processing signals, the system comprising:
one or more circuits that provides an electrical impedance that increases with frequency, wherein:
said one or more circuits comprises one or more hybrid inductors having a transistor coupled to a capacitor, an inductor, and a resistor; and
said one or more circuits is operable to apply a constant voltage to bias said transistor during large signal operation by supplying current to said third terminal of said transistor utilizing a current source.
51. The system according to claim 50 , wherein said one or more circuits is operable to apply a constant voltage to amplifying signals utilizing said one or more hybrid inductors as a load of one or more amplifiers.
52. The system according to claim 51 , wherein said one or more amplifiers comprise differential amplifiers.
53. The system according to claim 50 , wherein said transistor comprises a MOSFET.
54. The system according to claim 50 , wherein said inductor comprises a passive inductor.
55. A method for processing signals, the method comprising:
in an electrical circuit:
providing an electrical impedance that increases with frequency utilizing one or more hybrid inductors comprising a transistor coupled to a capacitor, an inductor, and a resistor; and
amplifying signals utilizing said one or more hybrid inductors as a load of one or more amplifiers.
56. The method according to claim 55 , wherein said one or more amplifiers comprise differential amplifiers.
57. The method according to claim 55 , wherein said transistor comprises a MOSFET.
58. The method according to claim 55 , wherein said inductor comprises a passive inductor.
59. A system for processing signals, the system comprising:
one or more circuits that provides an electrical impedance that increases with frequency, wherein:
said one or more circuits comprises one or more hybrid inductors having a transistor coupled to a capacitor, an inductor, and a resistor; and
said one or more circuits is operable to apply a constant voltage to amplifying signals utilizing said one or more hybrid inductors as a load of one or more amplifiers.
60. The system according to claim 59 , wherein said one or more amplifiers comprise differential amplifiers.
61. The system according to claim 59 , wherein said transistor comprises a MOSFET.
62. The system according to claim 61 , wherein said inductor comprises a passive inductor.