A balanced power amplifier that is insensitive to load line variations is provided. The balanced power amplifier is suitable for use in wireless transmitter applications, such as cellular telephones, mobile computing devices, and portable communication devices. An embodiment of such a balanced power...http://www.google.de/patents/US7598805?utm_source=gb-gplus-sharePatent US7598805 - Load insensitive balanced power amplifier and related operating method
