Power sharing amplifier system for amplifying multiple input signals with shared power amplifiers
First Claim
Patent Images
1. A power sharing amplifier system comprising:
- an N×
N transform matrix circuit having M input ports that respond to M input signals and provide N transformed input signals, the N×
N transform matrix circuit having at least two input ports that do not receive an input signal;
N amplifiers that respond to the N transformed input signals and provide N amplified transformed signals; and
an N×
N inverse transform matrix circuit that responds to the N amplified transformed signals and provides M inverse transform amplified output signals to M output ports, the N×
N inverse transform matrix circuit having at least two output dissipation ports that do not provide an output signal to an antenna but instead provide an output for dissipation of intermodulation products;
wherein M and N are integers greater than 2 respectively, and where M is less than N;
wherein M is not equal to 6; and
wherein N is not equal to 8.
7 Assignments
0 Petitions
Accused Products
Abstract
The invention provides a power sharing amplifier system having an N by N transform matrix circuit, N amplifiers and an N by N inverse transform matrix circuit. The N by N transform matrix circuit has N input ports that respond to M input signals and provide N transform matrix input signals, where M is less than N. The N by N transform matrix circuit features at least one input port that does not receive an input signal but instead is coupled to ground. The N amplifiers respond to the transform matrix input signals and provide N amplified transform matrix input signals. The N by N inverse transform matrix circuit responds to the N amplified transform matrix input signals and provides N inverse transform matrix amplified output signals to output ports. Moreover, the N by N inverse transform matrix circuit features at least one output dissipation port that is coupled to ground to dissipate the intermodulation products contain thereon. In the power sharing amplifier system of the present invention, M and N are integers greater than 1 and 2 respectively, M is less than N, M is not equal to 6, and N is not equal to 8.
-
Citations
17 Claims
-
1. A power sharing amplifier system comprising:
-
an N×
N transform matrix circuit having M input ports that respond to M input signals and provide N transformed input signals, the N×
N transform matrix circuit having at least two input ports that do not receive an input signal;
N amplifiers that respond to the N transformed input signals and provide N amplified transformed signals; and
an N×
N inverse transform matrix circuit that responds to the N amplified transformed signals and provides M inverse transform amplified output signals to M output ports, the N×
N inverse transform matrix circuit having at least two output dissipation ports that do not provide an output signal to an antenna but instead provide an output for dissipation of intermodulation products;
wherein M and N are integers greater than 2 respectively, and where M is less than N;
wherein M is not equal to 6; and
wherein N is not equal to 8. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
wherein the at least two output dissipation ports is coupled to ground via a matching resistor; - and
wherein the at least two input ports are coupled to ground via another respective matching resistor.
-
-
5. A power sharing amplifier system according to claim 1, wherein the intermodulation products include three-signal third order intermodulation products.
-
6. A power sharing amplifier system according to claim 1,
wherein the N× - N transform matrix circuit is an N by N Fourier transform matrix circuit; and
wherein the N×
N inverse transform matrix circuit is an N by N inverse Fourier transform matrix circuit.
- N transform matrix circuit is an N by N Fourier transform matrix circuit; and
-
7. A power sharing amplifier system according to claim 1, wherein the N amplifiers are power amplifiers.
-
8. A power sharing amplifier system according to claim 1,
wherein the N× - N transform matrix circuit includes two input ports that each respond to a respective input signal, includes an input port that is coupled to ground via a resistor, and includes three outputs ports for providing three transformed input signals; and
wherein the N amplifiers include three shared linear power amplifiers that respectively respond to the three transformed input signals and provide three shared linear power amplified transformed signals; and
wherein the N×
N inverse transform matrix circuit includes three input ports that respectively respond to the three shared linear power amplified transformed signals, includes two outputs ports for providing two inversely transformed amplified output signals, and includes an output dissipation port that does not provide an output signal but instead is coupled to ground via a resistor to dissipate the intermodulation products.
- N transform matrix circuit includes two input ports that each respond to a respective input signal, includes an input port that is coupled to ground via a resistor, and includes three outputs ports for providing three transformed input signals; and
-
9. A power sharing amplifier system according to claim 8, wherein the respective input signal has a constant envelope.
-
10. A power sharing amplifier system according to claim 9,
wherein one input signal is a summed signal; - and
wherein another signal is a different signal than the summed signal.
- and
-
11. A power sharing amplifier system according to claim 10, wherein the summed signal is the sum of two sine waves.
-
12. A power sharing amplifier system according to claim 10, wherein the summed signal has a non-constant envelope.
-
13. A power sharing amplifier system according to claim 1,
wherein the N× - N transform matrix circuit includes three input ports that respectively respond to RF input signals, includes an input port that is coupled to ground via a resistor, and includes four outputs ports for providing four transformed RF input signals; and
wherein the N amplifiers include four shared linear power amplifiers that respectively respond to the four transformed input signals and provide four shared linear power amplified transformed signals; and
wherein the N×
N inverse transform matrix circuit includes four input ports that respectively respond to the four shared linear power amplified transformed signals, includes three outputs ports for providing three inversely transformed amplified RF output signals, and includes an output dissipation port that does not provide an RF output signal but instead is coupled to ground via a resistor to dissipate the intermodulation products.
- N transform matrix circuit includes three input ports that respectively respond to RF input signals, includes an input port that is coupled to ground via a resistor, and includes four outputs ports for providing four transformed RF input signals; and
-
14. A power sharing amplifier system according to claim 1, wherein the power sharing amplifier system further comprises a two-way power combiner that responds to at least two of the M inverse transform amplified output signals, for providing a two-way power combiner signal.
-
15. A power sharing amplifier system according to claim 1, wherein the N×
- N inverse transform matrix circuit includes a power combiner so as to form a combined 4th order transformation matrix and power combiner network.
-
16. A power sharing amplifier system according to claim 1, wherein the M input signals comprise signals having complex waveforms, such as AM, FM, digital signals like Time Division Multiple Access (TDMA) and Code Division Multiple Access (CDMA) signals, or the sum of two or more of the signals having complex waveforms.
-
17. A power sharing amplifier system according to claim 1, wherein the M input signals comprise at least one carrier signal.
Specification
-
- Resources
Litigation Campaign Assessment
Thank you for your request. You will receive a custom alert email when the Litigation Campaign Assessment is available.
×
-
Current AssigneeWSOU Investments, LLC (WSOU Holdings, LLC)
-
Original AssigneeRadio Frequency Systems Incorporated (Amphenol Corporation)
-
InventorsLarkin, Robert S.
-
Primary Examiner(s)LUTHER, WILLIAM A
-
Application NumberUS09/098,896Time in Patent Office1,413 DaysField of Search370/210, 370/203, 370/208, 370/335, 370/320, 370/321, 370/326, 370/336, 370/337, 370/342, 370/345, 370/211, 370/274, 370/275, 370/276, 370/297, 375/297, 330/126, 330/125, 330/124.D, 330/124.R, 330/149, 330/151, 455/103, 708/403, 333/109, 333/119, 333/125, 333/127, 333/128, 333/132US Class Current370/210CPC Class CodesH03F 3/602 Combinations of several amp...
