Traveling wave beamforming network

• US 8,606,206 B1
• Filed: 03/12/2010
• Issued: 12/10/2013
• Est. Priority Date: 03/18/2009
• Status: Active Grant

• Current Assignee: Lockheed Martin Corporation (Martin Marietta Corporation)
• Original Assignee: Lockheed Martin Corporation (Martin Marietta Corporation)
• Inventors: Lam, Lawrence K., Ku, Joseph
• Primary Examiner(s): DINH, TRINH VO
• Application Number:
  US12/722,680
• Time in Patent Office: 1,369 Days
• Field of Search: 343/700.MS, 343/772, 343776-778, 343/904
• US Class Current: 455/273
• CPC Class Codes: H01P 1/184 Strip line phase-shifters H01P1/181, H01P1/185, H01P1/19 take precedence
• CPC Class Codes: H01Q 3/26 varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture H01Q3/12, H01Q3/22, H01Q3/24 take precedence
• CPC Class Codes: H01Q 3/2694 using also variable phase-shifters H01Q3/2688 takes precedence

Abstract

A beamforming network includes a plurality of signal conditioning devices in signal communication with each other, wherein each of the signal conditioning devices receives an input signal, conditions the input signal by independently and selectively adjusting at least one of a time delay, a phase, and an amplitude of the input signal, and transmits an output signal to at least one of another of the signal conditioning devices, an antenna, and a load.

Claims

1. A beamforming network comprising a plurality of signal conditioning devices in signal communication with each other, wherein each of the signal conditioning devices receives an input signal, conditions the input signal by independently and selectively adjusting at least one of a time delay, a phase, and an amplitude of the input signal, and transmits an output signal to at least one of another of the signal conditioning devices, an antenna, and a load.

2. The beamforming network according to claim 1, wherein at least one of the signal conditioning devices includes:

a power divider for receiving the input signal and dividing the input signal into a plurality of divided signals;

a plurality of time delay paths, each of the time delay paths coupled to an output of the power divider to receive at least one of the divided signals; and

a power combiner for receiving the divided signals from the time delay paths and combining the signals into the output signal.

3. The device according to claim 2, wherein at least one of the time delay paths has a different length and associated time delay than another one of the time delay paths.

4. The beamforming network according to claim 2, wherein at least one of the signal conditioning devices includes a substrate having at least one transmission line integrated therewith, wherein at least one of the time delay paths is in signal communication with the at least one transmission line to define a time delay associated therewith.

5. The beamforming network according to claim 1, wherein at least one of the signal conditioning devices includes:

a power divider for receiving the input signal and dividing the input signal into a plurality of divided signals;

a plurality of time delay paths, each of the time delay paths coupled to an output of the power divider to receive at least one of the divided signals;

a control device in signal communication with at least one of the time delay paths for controlling at least one of a phase shift and an amplitude of at least one of the divided signals transmitted therethrough; and

a power combiner for receiving the at least one of the divided signals from each of the time delay paths and combining the signals into the output signal.

6. The device according to claim 5, wherein the control device includes a phase shifter.

7. The device according to claim 5, wherein the control device includes a variable gain amplifier.

8. The device according to claim 5, wherein the control device is an amplitude/phase control device.

9. The beamforming network according to claim 1, wherein at least one of the signal conditioning devices receives the input signal from at least one of an antenna, a load, and another one of the signal condition devices.

10. A beamforming network comprising:

a plurality of signal conditioning devices in signal communication with each other, wherein each of the signal conditioning devices receives an input signal, conditions the input signal by independently and selectively adjusting at least one of a time delay, a phase, and an amplitude of the input signal, and transmits an output signal, and wherein at least one of the signal conditioning devices includes an output power divider for dividing the output signal into a plurality of divided output signals; and

an antenna in single communication with the at least one of the signal conditioning devices to receive one of the divided output signals, wherein another of the divided output signals is transmitted to at least one of a load and another of the signal condition devices.

11. The beamforming network according to claim 10, wherein at least one of the signal conditioning devices includes:

an input power divider for receiving the input signal and dividing the input signal into a plurality of divided signals;

a plurality of time delay paths, each of the time delay paths coupled to an output of the power divider to receive at least one of the divided signals; and

a power combiner for receiving the divided signals from the time delay paths and combining the signals into the output signal.

12. The device according to claim 11, wherein at least one of the time delay paths has a different length and associated time delay than another one of the time delay paths.

13. The beamforming network according to claim 11, wherein at least one of the signal condition devices includes a substrate having at least one transmission line integrated therewith, wherein at least one of the time delay paths is in signal communication with the at least one transmission line to define a time delay associated therewith.

14. The beamforming network according to claim 10, wherein at least one of the signal condition devices includes:

an input power divider for receiving the input signal and dividing the input signal into a plurality of divided signals;

a plurality of time delay paths, each of the time delay paths coupled to an output of the power divider to receive at least one of the divided signals;

a control device in signal communication with at least one of the time delay paths for controlling at least one of a phase shift and an amplitude of at least one of the divided signals; and

a power combiner for receiving the divided signals from the time delay paths and combining the signals into the output signal.

15. The beamforming network according to claim 14, wherein at least one of the signal conditioning devices receives the input signal from at least one of an antenna, a load, and another one of the signal condition devices.

16. A beamforming network comprising:

a plurality of signal conditioning devices in signal communication with each other, wherein each of the signal conditioning devices receives an input signal through an input, conditions the input signal by independently and selectively adjusting at least one of a time delay, a phase, and an amplitude of the input signal, and transmits an output signal, and wherein at least one of the signal conditioning devices includes a power combiner to receive a plurality of signals, combine the signals, and transmit a combined signal as the input signal through the input thereof; and

an antenna in single communication with the at least one of the signal conditioning devices, wherein the antenna receives a radio frequency signal and transmits the radio frequency signal to the power combiner, and wherein an output signal of another one of the signal conditioning devices is received by the power combiner of the at least one signal conditioning device and combined with the radio frequency signal.

17. The beamforming network according to claim 16, wherein at least one of the signal conditioning devices includes:

an input power divider for receiving the input signal and dividing the input signal into a plurality of divided signals;

a plurality of time delay paths, each of the time delay paths coupled to an output of the power divider to receive at least one of the divided signals; and

a power combiner for receiving the divided signals from the time delay paths and combining the signals into the output signal.

18. The beamforming network according to claim 17, wherein at least one of the signal conditioning devices includes a substrate having at least one transmission line integrated therewith, wherein at least one of the time delay paths is in signal communication with the at least one transmission line to define a time delay associated therewith.

19. The beamforming network according to claim 16, wherein at least one of the signal conditioning devices includes:

an input power divider for receiving an input signal and dividing the input signal into a plurality of divided signals;

a plurality of time delay paths, each of the time delay paths coupled to an output of the power divider to receive at least one of the divided signals;

a control device in signal communication with at least one of the time delay paths for controlling at least one of a phase shift and an amplitude of at least one of the divided signals; and

a power combiner for receiving the divided signals from the time delay paths and combining the signals into the output signal.

20. The beamforming network according to claim 19, wherein at least one of the signal conditioning devices includes a substrate having at least one transmission line integrated therewith, wherein at least one of the time delay paths is in signal communication with the at least one transmission line to define a time delay associated therewith.