Title Page | Collection Summary | Biographical/Organizational Note | Scope and Content | Arrangement
Biographical Note
| Date | Event |
|---|---|
| 1893 | Born, Naestved, Denmark |
| 1916 | Graduated in electrical engineering, Royal Technical College, Copenhagen, Denmark, and started working at Royal Gun Factory |
| 1919 | Studied radio engineering, Columbia University, New York, N.Y. |
| 1920-1958 | Employed with research group at Western Electric Co., which became part of Bell Telephone Laboratories in 1925 |
| 1923-1928 | Published IRE (Institute of Radio Engineers) papers on radio signal to noise ratio, directional antennas, and oscillographic observations |
| 1930s | Developed with colleague Karl Jansky a new science of radio astronomy by assisting in the design of receiving system; co-invented with Edmond Bruce rhombic antenna for shortwave radio |
| 1938 | Appointed director, research team at Homdel Laboratory of Bell Labs |
| 1940s | Research group under his direction developed microwave radar and microwave communication equipment |
| 1946 | Published formula for transmission loss, the Friis transmission equation |
| 1954 | Recipient, Valdemar Poulsen Medal of the Danish Academy of Sciences |
| 1955 | Recipient, IRE Medal of Honor (now the IEEE Medal of Honor) |
| 1958 | Recipient, Ballentine Medal from the Franklin Institute |
| 1958 | Retired from Bell Labs |
| 1958-circa 1968 | Research consultant, Hewlett-Packard Co. |
| 1971 | Published Seventy Five Years in an Exciting World. San Francisco: San Francisco Press |
| 1976, June 15 | Died, Palo Alto, Calif. |