Patent ID: 9680422
Date: 2017-06-13
CPC Classifications: H03F,H04L

Claim:
1. A method, comprising: applying digital pre-distortion (DPD) of a power amplifier at a frequency channel, a fixed input power alignment value, and a fixed temperature; and determining an optimal input power alignment value for the power amplifier in response to a change in at least one of frequency and temperature, the determining including measuring adjacent channel leakage ratios (ACLRs) for a plurality of input power alignment values and a plurality of frequency channels with the DPD at a plurality of temperatures, and selecting the optimal input power alignment value for the power amplifier for each frequency channel of the plurality of frequency channel based on the measured ACLRs; applying the DPD and the optimal input power alignment value across frequency channels and temperature; measuring and recording output power variations of the power amplifier versus frequency and temperature; and determining optimal input power value curve for each temperature of the plurality of temperatures across each frequency channel of the plurality of frequency channels by selecting an optimal static input power alignment value for the power amplifier for each frequency channel of the plurality of frequency channel and for each temperature of the plurality of temperature based on the measured ACLRs.