Power amplifier for a radio frequency signal

Details Power amplifier for a radio frequency signal Power amplifier for a radio frequency signal

1989-10-02

1991-02-12

Mullins, James B.

Amplifiers

With control of power supply or bias voltage

With control of input electrode or gain control electrode bias

330145, 330279, 330284, 455116, 455126, H03G 320

Patent

active

049927531

ABSTRACT:
A power amplifier is provided for amplifying a radio frequency signal such as in a burst modulation manner for use in GSM cellular radio. The amplifier has means, such as a ROM (16), for producing a predetermined sequence of values in response to a control pulse. Means (21) are provided for converting each value into a power control signal, and control means (9) are provided for controlling the amplifier output power in accordance with said power control signal. In this manner, the power/time characteristic can be made to take the form of a raised cosine. The invention also provides power selection means for selecting a nominal output level from a plurality of discrete levels and for selecting power sub-levels offset from said selected level. An indication is recorded as to which sub-level best represents the nominal power level.

REFERENCES:
patent: 4339724 (1982-07-01), Feher
patent: 4485349 (1984-11-01), Siegel et al.
patent: 4754231 (1988-06-01), Sawa
patent: 4803440 (1989-02-01), Hotta et al.

Affiliated with

Also associated with

Rating

Power amplifier for a radio frequency signal does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Power amplifier for a radio frequency signal, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Power amplifier for a radio frequency signal will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-22738