Shared-current electronic systems

• US 6,900,696 B2
• Filed: 08/20/2003
• Issued: 05/31/2005
• Est. Priority Date: 12/27/2000
• Status: Expired due to Fees

• Current Assignee: Emhiser Research Inc
• Original Assignee: Emhiser Research Inc
• Inventors: Lautzenhiser, Lloyd Lynn, Lautzenhiser, Barry Arthur
• Primary Examiner(s): Choe, Henry
• Application Number:
  US10/644,115
• Publication Number:
  US 20040000952A1
• Time in Patent Office: 650 Days
• Field of Search: 330/295, 330/124.R, 330/286, 330/84, 330/277
• US Class Current: 330/295
• CPC Class Codes: H03F 1/0283 Reducing the number of DC-current paths
• CPC Class Codes: H03F 1/301 in MOSFET amplifiers H03F1/303, H03F1/305, H03F1/308 take precedence
• CPC Class Codes: H03F 3/601 using FET's, e.g. GaAs FET's H03F3/607, H03F3/608 take precedence

Abstract

Shared-current electronic systems (10, 20, 26, 30, 38, 48, 66, 70, 82, 90, 96, 100, 104, 108, 118, and 122) include two or more solid-state electronic devices, such as a solid-state amplifying device Q1, a baseband processor 110, and a multiplier/upconverter 112, that are connected in dc series or dc series-parallel, and that either fixedly or variably share percentages of a dc supply voltage. Various embodiments produce separate rf outputs, variably shift the phase of a single rf output, variably shift rf power between/among rf outputs, or produce a frequency-compressed modulation. RF decoupling of the dc series-connected electronic devices comprises making an effective series resistance (ESR) of an rf decoupling capacitance lower than the ESR of a porcelain capacitor that resonates at the operating frequency of the electronic device that is being decoupled.

Claims

1. Electronic apparatus (10, 20, 26, 30, 38, 48, 66, 70, 82, 90, 96, 100, 108, 118, or 122) which comprises:

a solid-state electronic device (Q1, Q3, or Q5) that includes higher and lower dc voltage terminals;

an other electronic device (Q2, Q4, Q6, Q7, Q8, 92, 110, 112, Q11, or Q12) that includes higher and lower dc voltage terminals;

means, comprising means (L2) for connecting said lower dc voltage terminal of one of said electronic devices to said higher dc voltage terminal of an other of said electronic devices, for connecting said electronic devices in dc series between a dc source terminal and an electrical ground;

means, comprising a capacitor (C5, C6, or C19) that is connected between said lower dc voltage terminal of said one electronic device and said electrical ground, for rf decoupling said dc series-connected electronic devices; and

said means for if decoupling further comprises means (86) for making an effective series resistance, between said lower dc voltage terminal of said one electronic device and said electrical ground, lower than a porcelain capacitor that resonates at an rf frequency of said one electronic device.

9. Electronic apparatus (90, 96, 100, 108, 118, or 122) as claimed in claim 1 in which said other electronic device comprises a processing electronic device (92).

10. Electronic apparatus (108, 118, or 122) as claimed in claim 1 in which said other electronic device comprises a baseband processing device (110).

11. Electronic apparatus (108, 118, or 122) as claimed in claim 1 in which said other electronic device comprises a multiplied/up-converter (112).

17. Apparatus (48, 66, 70, 82, 90, 96, 100, 108, 118, or 122) as claimed in claim 1 in which said apparatus further comprises means (54, 72, or VD 1) for selectively and inversely proportioning a dc source voltage to said electronic devices (Q1, Q2, Q3, Q4, Q5, Q6, Q11, Q12, 92, 110, or 112).

18. Electronic apparatus (30, 38, 108, 118, or 122) as claimed in claim 1 in which said electronic devices (Q1 and Q7, Q1 and 110, Q3 and 110, Q5 and 110, or Q1 and 112) are connected in rf series.

19. Electronic apparatus (30, 38, 90, 96, 100, 108, 118, or 122) as claimed in claim 1 in which said apparatus further comprises mean (R7, R15, R16, Q8, Q11, Q12, 110, or 112) for increasing current flow through one of said electronic devices (Q1, Q2, Q3, Q5, 92, 110, or 112) without increasing current flow through an other of said electronic devices (Q1, Q2, Q3, Q5, 92, 110, or 112).

20. Electronic apparatus (30, 38, 108, 118, or 122) as claimed in claim 1 in which said apparatus further comprises means, comprising a third electronic device (Q8, Q11, Q12, 110, or 112), for increasing current flow through one of said electronic devices (Q1, Q2, Q3, or Q5) without increasing current flow through an other of said electronic devices (Q7, Q11, Q12, 110, or 112).

21. Electronic apparatus (30, 38, 108, 118, or 122) as claimed in claim 1 in which said apparatus further comprises means, comprising a resistor (R7, R15, or R16), for increasing current flow through one of said electronic devices (Q1, Q2, Q3, Q5, Q11, Q12, 110, or 112) without increasing current flow through an other of said electronic devices (Q1, Q2, Q3, Q5, Q8, Q11, Q12, 110, or 112).

22. Electronic apparatus (30, 38, 108, 118, or 122) as claimed in claim 1 in which said apparatus further comprises a third electronic device (Q8, Q11, Q12, 110, or 112) that is connected in dc parallel with one of said electronic devices (Q7, Q11, Q12, 110, or 112);

and

two of said electronic devices (Q1 and Q7, Q1 and 110, Q3 and 110, Q5 and 110, Q1 and 112, Q1 and Q11, or Q1 and A12) are connected in rf series.

2. Electronic apparatus (48, 66, 70, 82, 90, 96, 100, 108, 118, or 122) which comprises:

a first electronic device (Q1, Q3, or Q5 that includes higher and lower dc voltage terminals;

a second electronic device (Q2, Q4, Q6, 92, 110, 112, Q11, or Q12) that includes higher and lower dc voltage terminals;

means, comprising means (L2) for connecting said lower dc voltage terminal of one of said electronic devices to said higher dc voltage terminal of an other of said electronic devices, for connecting said electronic devices in dc series between a dc source terminal and an electrical ground;

means (54, 72 or VD1) for proportioning first and second percentages of a dc source voltage, when applied to said dc source terminal, to said first and second electronic devices, respectively;

means, comprising a capacitor (C5, C6, or C19) that is connected between said lower dc voltage terminal of said one electronic device and said electrical ground, for rf decoupling said dc series-connected electronic devices; and

said means for rf decoupling further comprises means (86) for making an effective series resistance, between said lower dc voltage terminal of said one electronic device and said electrical ground, lower than a porcelain capacitor that resonates at an rf frequency of said one electronic device.

12. Electronic apparatus (90, 96, 100, 108, 118, or 122) as claimed in claim 2 in which said second electronic device comprises a processing electronic device (92).

13. Electronic apparatus (108, 118, or 122) as claimed in claim 2 in which said second electronic device comprises a baseband processing device (110).

14. Electronic apparatus (108, 118, or 122) as claimed in claim 2 in which said second electronic device comprises a multiplier/up-converter (112).

3. Electronic apparatus (108, 118, or 122) which comprises:

a baseband processing device (110) having higher and lower dc voltage terminals;

a solid-state electronic device (Q1, Q2, or Q3), having higher and lower dc voltage terminals;

means (112, Q11, Q12) for delivering an rf signal from said baseband processing device to said solid-state electronic device;

means, comprising means (L2) for connecting said lower dc voltage terminal of one of said devices to said higher dc voltage terminal of an other of said devices, for connecting said devices in dc series between a dc source terminal end an electrical ground;

means (VD1) for proportioning first and second percentages of a dc supply voltage, when applied to said dc source terminal, to respective ones of said devices; and

means, comprising a capacitor (C5 or C19) that is connected between said lower dc voltage terminal of said one electronic device and said electrical ground, for rf decoupling said dc series-connected electronic devices.

15. Electronic apparatus (108, 118, or 122) as claimed in claim 3 in which said means for rf decoupling further comprises means (86) for making an effective series resistance, between said lower dc voltage terminal of said one electronic device and said electrical ground, lower than a porcelain capacitor that resonates at an rf frequency of said one electronic device.

23. Electronic apparatus (108, 118, or 122) as claimed in claim 3 in which said devices (Q1 and 110, 112, Q11, or Q12) are connected in rf series.

24. Electronic apparatus (108, 118, or 122) as claimed in claim 3 in which said apparatus further comprises means (R15, R16, Q11, Q12, 110, or 112) for increasing current flow through one of said devices (Q1, Q11, Q12, 110, or 112) without increasing current flow through an other of said devices (Q1, Q11, Q12, 110, or 112).

25. Electronic apparatus (108, 118, 122) as claimed in claim 3 in which said apparatus further includes means, comprising a third electronic device (Q11, Q12, or 112) for increasing current flow through one of said devices (Q1) without increasing current flow through an other of said devices (110).

26. Electronic apparatus (108, 118, or 122) as claimed in claim 3 in which said apparatus further includes means, comprising a resistor (R15 or R16) for increasing current flow through one of said devices (Q1 or 110) without increasing current flow through an other of said devices (Q1 or 110).

27. Electronic apparatus (108, 118, or 122) as claimed in claim 3 in which said apparatus further comprises a third electronic device (Q11, Q12, or 112) that is connected in dc parallel with one of said devices (110);

and

two of said devices (Q1 and 110, Q1 and 112, Q1 and Q11, or Q1 and Q12) are connected in rf series.

4. Electronic apparatus (108, 118, or 122) which comprises:

a baseband processing device (110) having higher and lower dc voltage terminals;

a multiplier/up-converter (112) being connected in rf series to said baseband processing device;

a solid-state amplifying device (Q1, Q3, or Q5) having higher and lower dc voltage terminals;

means (Q11, Q12) for connecting said solid-state amplifying device in rf series to said multiplier/up-converter;

means, comprising means (L2) for connecting said lower dc voltage terminal of said solid-state amplifying device to said higher dc voltage terminal of said baseband processing device, for connecting said solid-state amplifying device and said baseband processing device in dc series between a dc source terminal and an electrical ground;

means (VD1) for proportioning first and second percentages of a dc supply voltage, when applied to said dc source terminal, to said solid-state amplifying device and to said baseband processing device, respectively; and

means, comprising a capacitor (C5) that is connected between said lower dc voltage terminal of said solid-state amplifying device and said electrical ground, for rf decoupling said solid-state amplifying device and said baseband processing device.

16. Electronic apparatus (108, 118, or 122) as claimed in claim 4 in which said means for rf decoupling further comprises means (86) for making an effective series resistance, between said lower dc voltage terminal of said solid-state amplifying device and said electrical ground, lower than a porcelain capacitor that resonates at an rf frequency of said solid-state amplifying device.

5. A method for processing rf signals which comprises:

a) connecting a solid-state electronic device and an other electronic device in dc series between a dc source voltage and an electrical ground;

b) said connecting step comprises connecting a lower dc voltage terminal of one of said electronic devices to an rf choke, and connecting said rf choke to a higher dc voltage terminal of an other of said electronic devices;

c) separately processing rf signals in said electronic devices;

d) proportioning first and second percentages of said dc source voltage to separate ones of said electronic devices;

e) rf decoupling said electronic devices; and

f) said rf decoupling step comprises providing a capacitance between said lower dc voltage terminal and said electrical ground that is lower than an effective series resistance of a porcelain capacitor that resonates at an rf frequency of said one electronic device.

6. A method for processing rf signals which comprises:

a) connecting first and second electronic devices in dc series between a dc source voltage and an electrical ground;

b) separately processing rf signals in said first and second electronic devices;

c) proportioning first and second percentages of said dc source voltage between said first and second electronic devices;

d) rf decoupling said electronic devices; and

e) said rf decoupling step comprises providing a capacitance, between a lower dc voltage terminal of an upper one of said electronic devices and said electrical ground, that is lower than an effective series resistance of a porcelain capacitor that resonates at an rf frequency of said first electronic device.

7. A method for processing rf signals which comprises:

a) rf connecting a baseband processing device and a solid-state electronic device;

b) connecting said solid-state electronic device and said baseband processing device in dc series between a dc source terminal and an electrical ground;

c) said dc series-connecting step comprises connecting a lower dc voltage terminal of one of said devices to a higher dc voltage terminal of an other of said devices;

d) applying a dc source voltage to said dc source terminal;

e) separately proportioning first and second percentages of said dc source voltage to said devices;

f) rf decoupling said devices; and

g) said rf decoupling step comprises connecting a capacitor between said lower dc voltage terminal of said one device and said electrical ground.

28. A method as claimed in claim 7 in which said method further comprises increasing current flow through one of said devices without increasing current flow through an other of said devices.

29. A method as claimed in claim 7 in which:

a) said method further comprises increasing current flow through one of said devices without increasing current flow through an other of said devices; and

b) said increasing step comprises connecting a resistor in parallel with said other device.

30. A method as claimed in claim 7 in which:

a) said method further comprises increasing current flow through one of said devices without increasing current flow through an other of said devices; and

b) said increasing step comprises connecting a third device in parallel with said other device.

31. A method as claimed in claim 7 in which said method further comprises:

a) connecting a third device in parallel with one of said devices; and

b) connecting said third device in rf series with said baseband processing device and said solid-state electronic device.

8. A method for processing rf signals which comprises:

a) rf connecting a baseband processing device to a multiplier/up-converter;

b) rf connecting said multiplier/up-converter to a solid-state amplifying device;

c) connecting said solid-state amplifying device and said baseband processing device in dc series with a dc source terminal and an electrical ground;

d) said dc series-connecting step comprises connecting a lower dc voltage terminal of said solid-state amplifying device to an rf choke, and connecting said rf choke to a higher dc voltage terminal of said baseband processing device;

e) applying a dc source voltage to said dc source terminal;

f) proportioning first and second percentages of said dc source voltage to separate ones of said devices;

g) rf decoupling said solid-state amplifying device and said baseband processing device; and

h) said rf decoupling step comprises connecting a capacitor between said lower dc voltage terminal and said electrical ground.