Jonathan Zenneck

Jonathan Zenneck
Zenneck in 1951
Rector of the Technical University of Munich
In office
1925–1927
Preceded byWalther von Dyck
Succeeded byKaspar Dantscher
Personal details
Born
Jonathan Adolf Wilhelm Zenneck

(1871-04-15)15 April 1871
Ruppertshofen, Kingdom of Württemberg, German Empire
Died8 April 1959(1959-04-08) (aged 87)
Althegnenberg, Bavaria, West Germany
Alma materUniversity of Tübingen
Known forZenneck wave
Oscilloscope
AwardsIRE Medal of Honor (1928)
Werner von Siemens Ring (1956)
Scientific career
FieldsPhysics
Electrical engineering
Doctoral advisorTheodor Eimer

Jonathan Adolf Wilhelm Zenneck (/ˈzɛnɛk/; German: [ˈjoːnatan ˈtsɛnɛk]; 15 April 1871 – 8 April 1959) was a German physicist and electrical engineer.

Zenneck improved the cathode-ray tube by adding a second deflection structure at right angles to the first, which allowed two-dimensional viewing of a waveform. This two-dimensional display is fundamental to the oscilloscope.