Patent 7830208 was granted and assigned to Wisconsin Alumni Research Foundation on November, 2010 by the United States Patent and Trademark Office.
A common-base amplifier for a bipolar junction transistor or a heterojunction bipolar transistor employs an active current source output biasing to provide for improved power output in a power saturation region providing increased power for a given transistor area such as may be advantageous in mobile radio transmitters or the like.