| US 7,502,422 B2 | ||
| Electromagnetic wave transmitter systems, methods and articles of manufacture | ||
| Anthony Dennis, Belle Mead, N.J. (US); Yongwen Yang, Hillsboro, N.J. (US); Walid Ahmed, Tinton Falls, N.J. (US); Radwan Husseini, Annadale, N.J. (US); and David Bengtson, Easton, Pa. (US) | ||
| Assigned to M/A—COM, Inc., Lowell, Mass. (US) | ||
| Filed on Jun. 04, 2003, as Appl. No. 10/454,697. | ||
| Prior Publication US 2004/0247040 A1, Dec. 09, 2004 | ||
| Int. Cl. H04L 27/00 (2006.01) | ||
| U.S. Cl. 375—295 [375/376] | 30 Claims |
| 1. A transmitter comprising:
a first baseband processor comprising a pulse processing component for shaping the signal and a polar processing component
for translating the signal into polar coordinates comprising amplitude and phase components;
a wideband phase modulator; and,
an amplitude modulated amplifier;
a signal provider comprising a second baseband processor, which provides said signal for transmission to said first baseband
processor and which provides signals for transmission and for providing power control signals to the amplitude modulated amplifier;
wherein when a signal is provided from the signal provider through said first baseband processor for transmission, said signal
is translated into polar coordinates, comprised of amplitude and phase components, with said amplitude component being transmitted
to said amplitude modulated amplifier, comprised of one or more independently controllable current sources, and with said
phase component being transmitted to said wideband phase modulator, for modulation upon a carrier wave and subsequent transmission
to said amplitude modulated amplifier for amplification according to control imposed by said amplitude component upon said
one or more current sources.
|