RF POWER LEVELLING SCHEME WITH ADJUSTABLE CHARACTERISTICS OVER VOLTAGE
Original Publication Date: 1990-Mar-01
Included in the Prior Art Database: 2001-Nov-09
The power output of a RF power amplifier may be adjusted by controlling the base bias of the power amplifier tran- sistor. By varying this base bias via a control circuit the amplifier is made to exhibit various characteristics over supply voltage variations leading to power levelling control as well as protection of the RF power amplifier under high line conditions.