| 摘要 |
A power amplifier that operates at a high efficiency over a wide power range. In one embodiment, the power amplifier (100) includes a first circuit (102) having a first transistor (106) including an input terminal for receiving an RF input, a first output terminal connected to ground, and a second output terminal connected to a first inductor (116) connected in series with a capacitor (118) and also connected to a voltage supply (110) through a first controllable connector (112); a second circuit (104) including a second transistor (108) having an input terminal for receiving the radio frequency (RF) input, a first output terminal connected to ground, and a second output terminal connected to a second inductor (120) connected in series with the capacitor (118) and also connected to a voltage supply (110) through a second controllable connector (114); and bias means for biasing the first transistor (106) and the second transistor (108), wherein the first circuit (102) is connected in parallel to the second circuit (104). |
