Herman A. Affel
Herman Andrew Affel (born August 4, 1893 in Brooklyn , New York City , † October 13, 1972 ) was an American electrical engineer, inventor and co-inventor of the coaxial cable .
He studied electrical engineering at the Massachusetts Institute of Technology . Here was Arthur E. Kennelly professor whose assistant he became. In 1916 they published their measurements of the skin effect at radio frequencies. This research was supported by Bell Labs . As a variable frequency source they used a Alexanderson machines transmitter with 2 kW and 100 kHz at 20,000 min -1 .
After MIT, he worked at Bell Labs. Among other projects, he worked here with Lloyd Espenschied on the characteristics of the broadband coaxial cable, for which they filed a patent in 1929.
He also worked on combining the coaxial cable with a microwave relay.
Affel acquired around 40 patents for improved transmitters and innovative antennas. In 2006 he was inducted into the National Inventors Hall of Fame .
Individual evidence
- ↑ Archive link ( Memento of the original dated December 28, 2008 in the Internet Archive ) Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice.
- ↑ Archive link ( Memento of the original from July 27, 2006 in the Internet Archive ) Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice.
| personal data | |
|---|---|
| SURNAME | Affel, Herman A. |
| ALTERNATIVE NAMES | Affel, Herman Andrew (full name) |
| BRIEF DESCRIPTION | American electrical engineer, co-inventor of the coaxial cable |
| DATE OF BIRTH | 4th August 1893 |
| PLACE OF BIRTH | Brooklyn , New York City |
| DATE OF DEATH | October 13, 1972 |