Electromagnetic wave transmitter systems, methods and articles of manufacture

• US 6,903,619 B2
• Filed: 06/04/2003
• Issued: 06/07/2005
• Est. Priority Date: 06/04/2003
• Status: Expired due to Fees

• Current Assignee: North South Holdings Incorporated (Spherix Incorporated)
• Original Assignee: M/A Com
• Inventors: Yang, Yongwen, Bengtson, David, Dennis, Anthony, Ahmed, Walid, Husseini, Radwan
• Primary Examiner(s): SHINGLETON, MICHAEL B
• Application Number:
  US10/454,698
• Publication Number:
  US 20040247047A1
• Time in Patent Office: 734 Days
• Field of Search: 375/298, 332/112, 332/151, 332/149, 332/115, 332/119, 332/120, 332/145, 332/105
• US Class Current: 332/112
• CPC Class Codes: H03F 2200/331 Sigma delta modulation being used in an amplifying circuit
• CPC Class Codes: H03F 3/24 of transmitter output stages

Abstract

A transceiver and transmitter are shown. A baseband processor receives a signal for transmission. It converts the signal into amplitude and phase polar components. Each component is then processed—the phase component through a wideband phase modulator and the amplitude component through a wideband amplitude modulator, and the components are then recombined for further processing or transmission.

Claims

1. A method for transmission comprising:

processing a phase component of a first signal via a wideband phase modulator having an extendable signal processing range for modulation upon a carrier wave;

processing an amplitude component of said first signal via a wideband amplitude modulator having an extendable signal processing range wherein said wideband amplitude modulator includes independently controllable current sources for independently modulating pre-selected components of said first signal;

providing said phase component to said wideband amplitude modulator for amplification according to any control imposed by said wideband amplitude modulator upon said current sources; and

,

providing a second signal, comprised of said processed phase and amplitude components of said first signal, from said wideband amplitude modulator.

2. A method as in claim 1 further comprising converting said first signal into polar coordinates, comprised of amplitude and phase components.

3. A method as in claim 1 further comprising receiving said first signal, via a baseband processor.

4. A method as in claim 1 further comprising converting said first signal from an analog signal to a digital signal.

5. A method as in claim 1 wherein said baseband processor converts said first signal from an analog signal to a digital signal.

6. A method as in claim 1 wherein said second signal is provided from said wideband amplitude modulator using the modulation scheme of said first signal.

7. A method as in claim 6 wherein said second signal is provided from said wideband amplitude modulator using a selected modulation scheme, wherein said selected modulation scheme is different from the modulation scheme of said first signal.

8. A method as in claim 7 wherein said wideband amplitude modulator converts said second signal from a first modulation scheme to a second modulation scheme.

9. A method as in claim 1 wherein said phase component of said first signal is modulated onto said carrier wave using a selectable frequency for said carrier wave, wherein said selectable frequency corresponds to a wireless communication mode of operation.

10. A method as in claim 1 wherein said phase component is provided to said wideband amplitude modulator as a constant envelope signal.

11. A method as in claim 1 wherein said second signal is provided at an adjustable output power, said output power being adjustable in response to pre-selected environmental factors.

12. A method as in claim 11 wherein said output power is adjusted via a control signal.

13. A method according to claim 3, further comprising providing one or more power control signals to said baseband processor.

14. A method according to claim 1, further comprising providing one or more power control signals to said wideband phase modulator.

15. A method according to claim 1, further comprising providing one or more power control signals to said wideband amplitude modulator.

16. A method according to claim 15, further comprising generating one or more power control signals to one or more segments of said wideband amplitude modulator.

17. A method according to claim 1, further comprising managing power within said transmitter.

18. A transmitter comprising:

a wideband phase modulator having an extendable signal processing range for processing said phase component of said first signal via modulation upon a carrier wave;

a wideband amplitude modulator having an extendable signal processing range for processing said amplitude component of said first signal via wherein said wideband amplitude modulator is comprised of independently controllable current sources for independently modulating pre-selected components of said first signal;

wherein said phase component is provided to said wideband amplitude modulator for amplification according to any control imposed by said wideband amplitude modulator upon said current sources; and

, a second signal, comprised of said processed phase and amplitude components of said first signal, is provided from said wideband amplitude modulator.

19. A transmitter as in claim 18 further comprising a processor for converting said first signal into polar coordinates, comprised of amplitude and phase components.

20. A transmitter as in claim 18 further comprising a processor for digitizing said first signal.

21. A transmitter as in claim 18 further comprising a baseband processor for receiving a first signal.

22. A transmitter as in claim 18 wherein said first signal is converted from an analog signal to a digital signal in said baseband processor.

23. A transmitter as in claim 18 wherein said second signal is provided from said wideband amplitude modulator using the modulation scheme of said first signal.

24. A transmitter as in claim 23 further comprising means for providing said second signal using a selected modulation scheme, wherein said selected modulation scheme is different from the modulation scheme of said first signal.

25. A transmitter as in claim 24 further comprising means for reconfiguring said method for transmission from a first modulation scheme to a second modulation scheme.

26. A transmitter as in claim 18 wherein said phase component of said first signal is modulated onto said carrier wave using a selectable frequency for said carrier wave, wherein said selectable frequency corresponds to a wireless communication mode of operation.

27. A transmitter as in claim 18 wherein said phase component is provided to said wideband amplitude modulator as a constant envelope signal.

28. A transmitter as in claim 18 wherein said second signal is provided at an adjustable output power, wherein said output power is adjustable in response to pre-selected environmental factors.

29. A transmitter as in claim 28 wherein said output power is adjusted via a control signal.

30. A transmitter as in claim 21 further comprising a power control interface for providing one or more power control signals to said baseband processor.

31. A transmitter as in claim 18 further comprising a power control interface for providing one or more power control signals to said wideband phase modulator.

32. A transmitter as in claim 18 further comprising a power control interface for providing one or more power control signals to said wideband amplitude modulator.

33. A transmitter as in claim 18 further comprising a power management module for managing power within said transmitter.

34. An integrated circuit comprising:

a baseband processor for receiving a first signal and converting said first signal into polar coordinates, comprised of amplitude and phase components;

a wideband phase modulator having an extendable signal processing range for processing said phase component of said first signal via modulation upon a carrier wave;

a wideband amplitude modulator having an extendable signal processing range for processing said amplitude component of said first signal via wherein said wideband amplitude modulator includes independently controllable current sources for independently modulating pre-selected components of said first signal;

wherein said phase component is provided to said wideband amplitude modulator for amplification according to any control imposed by said wideband amplitude modulator upon said current sources; and

, a second signal, comprised of said processed phase and amplitude components of said first signal, is provided from said wideband amplitude modulator.

35. A transceiver comprising:

a transmitter comprising;

a baseband processor for receiving a first signal and converting said first signal into polar coordinates, comprised of amplitude and phase components;

a wideband phase modulator having an extendable signal processing range for processing said phase component of said first signal via modulation upon a carrier wave;

a wideband amplitude modulator having an extendable signal processing range for processing said amplitude component of said first signal via wherein said wideband amplitude modulator includes independently controllable current sources for independently modulating pre-selected components of said first signal;

wherein said phase component is provided to said wideband amplitude modulator for amplification according to any control imposed by said wideband amplitude modulator upon said current sources; and

, a second signal, comprised of said processed phase and amplitude components of said first signal, is provided from said wideband amplitude modulator.