Patent ID: 9692359
Date: 2017-06-27
CPC Classifications: H03F,H04B,H04L

Claim:
1. Pulse shaping biasing circuitry for a radio frequency (RF) power amplifier comprising: signal summation circuitry configured to add one or more signals to provide at least a portion of a pulse-shaped bias signal for the RF power amplifier; a square wave signal generator coupled between an input node and the signal summation circuitry and configured to generate a square wave signal; first inverse ramp signal generator circuitry coupled in parallel with the square wave signal generator circuitry between the input node and the signal summation circuitry and configured to generate a first inverted ramp signal having a first slope and a first duration; and second inverse ramp signal generator circuitry coupled in parallel with the square wave signal generator circuitry and the first inverse ramp signal generator circuitry between the input node and the signal summation circuitry and configured to generate a second inverted ramp signal having a second slope and a second duration, wherein the first slope is different from the second slope and the first duration is different from the second duration.