Karl Ferdinand Braun | |
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![]() Braun in 1909 | |
Born | |
Died | 20 April 1918 Brooklyn, New York City, U.S. | (aged 67)
Nationality | German |
Alma mater | University of Marburg University of Berlin |
Known for | Beamforming Cat's whisker diode Sparkless antenna circuit Phased array Braun tube Le Chatelier–Braun principle |
Awards | Nobel Prize in Physics (1909) |
Scientific career | |
Fields | Physics |
Institutions | University of Karlsruhe University of Marburg University of Strassburg University of Tübingen University of Würzburg |
Doctoral advisor | A. Kundt G. H. Quincke |
Doctoral students | L. I. Mandelshtam A. Schweizer |
Karl Ferdinand Braun (German pronunciation: [ˈfɛʁdinant ˈbʁaʊn] ; 6 June 1850 – 20 April 1918) was a German electrical engineer, inventor, physicist and Nobel laureate in physics. Braun contributed significantly to the development of the radio, when he invented the phased array antenna in 1905,[1][2] which led to the development of radar, smart antennas and MIMO, and the television by building the first Cathode-ray tube. Braun also built the first semiconductor.
He shared the 1909 Nobel Prize in Physics with Guglielmo Marconi "for their contributions to the development of wireless telegraphy", was a founder of Telefunken, one of the pioneering communications and television companies,[3] and has been both called the "father of television" (shared with inventors like Paul Gottlieb Nipkow), "great grandfather of every semiconductor ever manufactured"[4] and the co-father of the radio telegraphy, together with Marconi.[5][6][7][8]