Anritsu Corp. has named Frank Tiernan president of Anritsu Company, its U.S. subsidiary. Tiernan also was appointed vice president of the parent company. Tiernan was cited for the success of Anritsu’s Microwave Measurement Division, where he served as general manager. Prior to that experience, Tiernan served the division in a variety of management positions, including director of research and development, director of corporate services and director of manufacturing.