Christian Jacobaeus

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Anton Christian Jacobæus (1911 in Stockholm, Sweden–1988) was a Swedish electrical engineer, known for his contributions to teletraffic engineering, especially in the design of modern crossbar switch used for telephone switching.

Jacobæus graduated from the Royal Institute of Technology (KTH) in 1934 with a master's degree in electrical engineering. In 1935 he went to work for L. M. Ericsson, where he would spend his entire professional career. In 1950 he received his doctorate in electrical engineering, also from KTH. His dissertation entitled A study of congestion in link systems became instrumental in efficient design of crossbar switches. He became technical director (1950), then was senior vice president from 1963 until his retirement in 1976. He then continued to serve as a consultant to the company's management. He was a member of the Swedish Academy of Sciences 1957–88, serving as vice chairman 1979–81. In 1979, he was awarded the IEEE Alexander Graham Bell Medal.

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Awards
Preceded by
M. Robert Aaron, John S. Mayo and Eric E. Sumner		 IEEE Alexander Graham Bell Medal
1979		 Succeeded by
Richard R. Hough
Persondata
NAME Jacobaeus, Anton Christian
ALTERNATIVE NAMES
SHORT DESCRIPTION Teletraffic engineer
DATE OF BIRTH 1911
PLACE OF BIRTH Stockholm, Sweden
DATE OF DEATH 1988
PLACE OF DEATH