High-quality power ramping in a communications transmitter

Details High-quality power ramping in a communications transmitter High-quality power ramping in a communications transmitter

2007-06-05

2007-06-05

Vo, Don N. (Department: 2611)

Pulse or digital communications

Transmitters

Antinoise or distortion

C375S305000, C332S100000

Reexamination Certificate

active

11172387

ABSTRACT:
The present invention, generally speaking, provides for control of a modulator, such as a polar modulator or conventional linear modulator, to produce high quality RF signals that ramp quickly from a condition of minimal output power to a condition of information-bearing modulation at a specified output power and back down to the condition of minimal output power. Using a polar modulator, for example, it is theoretically possible to perform ramping without degrading the transient measurements beyond the degradation caused by the information-bearing modulation itself. This ideal can be closely approached in practice. Such ramping can be achieved without the need for extensive unit-by-unit calibration on the manufacturing line.

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034942-368 European Application No. 04106195.3; European Search Report 3 pages.

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