Ralph Bown (1891 – July 1971) was a noted American

radio Radio is the technology of signaling and communicating using radio waves. Radio waves are electromagnetic waves of frequency between 30 hertz (Hz) and 300 gigahertz (GHz). They are generated by an electronic device called a transmi ...

pioneer. Bown was born in

Fairport, New York Fairport is a village located in the Town of Perinton, which is part of Monroe County, New York, United States. Fairport is a suburb east of Rochester. It is also known as the "Crown Jewel of the Erie Canal". In 2005, it was named as one of t ...

, and received his M.E., M.M.E., and Ph.D. degrees from

Cornell University Cornell University is a private statutory land-grant research university based in Ithaca, New York. It is a member of the Ivy League. Founded in 1865 by Ezra Cornell and Andrew Dickson White, Cornell was founded with the intention to tea ...

where he also taught

physics Physics is the natural science that studies matter, its fundamental constituents, its motion and behavior through space and time, and the related entities of energy and force. "Physical science is that department of knowledge which r ...

. He served as a captain in the

United States Army Signal Corps The United States Army Signal Corps (USASC) is a branch of the United States Army that creates and manages communications and information systems for the command and control of combined arms forces. It was established in 1860, the brainchild of Ma ...

World War I World War I (28 July 1914 11 November 1918), often abbreviated as WWI, was one of the deadliest global conflicts in history. Belligerents included much of Europe, the Russian Empire, the United States, and the Ottoman Empire, with fightin ...

, where he led

vacuum tube A vacuum tube, electron tube, valve (British usage), or tube (North America), is a device that controls electric current flow in a high vacuum between electrodes to which an electric potential difference has been applied. The type known as ...

development as head of its radio laboratories technical department, then joined the

American Telephone and Telegraph Company AT&T Inc. is an American multinational telecommunications holding company headquartered at Whitacre Tower in Downtown Dallas, Texas. It is the world's largest telecommunications company by revenue and the third largest provider of mobile te ...

research department, which in 1934 became

Bell Laboratories Nokia Bell Labs, originally named Bell Telephone Laboratories (1925–1984), then AT&T Bell Laboratories (1984–1996) and Bell Labs Innovations (1996–2007), is an American industrial research and scientific development company owned by mult ...

. Bown's work focused on electromagnetic propagation, particularly for radio broadcasting, ship-to-shore communication, aircraft radios, and intercontinental

telephony Telephony ( ) is the field of technology involving the development, application, and deployment of telecommunication services for the purpose of electronic transmission of voice, fax, or data, between distant parties. The history of telephony is i ...

. He was also an expert in

radar Radar is a detection system that uses radio waves to determine the distance ('' ranging''), angle, and radial velocity of objects relative to the site. It can be used to detect aircraft, ships, spacecraft, guided missiles, motor vehicles, we ...

, and served as a division member and consultant of the

National Defense Research Committee The National Defense Research Committee (NDRC) was an organization created "to coordinate, supervise, and conduct scientific research on the problems underlying the development, production, and use of mechanisms and devices of warfare" in the Un ...

and expert consultant to the Secretary of War; in 1941 he visited England to study radar in combat operations. Bown became research director at Bell Labs, and on June 30, 1948, led a press conference announcing the invention of the

transistor upright=1.4, gate (G), body (B), source (S) and drain (D) terminals. The gate is separated from the body by an insulating layer (pink). A transistor is a semiconductor device used to Electronic amplifier, amplify or electronic switch, switch ...

. Bown received the

IEEE Morris N. Liebmann Memorial Award The initially called Morris Liebmann Memorial Prize provided by the Institute of Radio Engineers (IRE), the IEEE Morris N. Liebmann Memorial Award was created in 1919 in honor of Colonel Morris N. Liebmann. It was initially given to awardees who h ...

(1926), and served as President of the

Institute of Radio Engineers The Institute of Radio Engineers (IRE) was a professional organization which existed from 1912 until December 31, 1962. On January 1, 1963, it merged with the American Institute of Electrical Engineers (AIEE) to form the Institute of Electrical ...

in 1927. In 1949, he received the

IEEE Medal of Honor The IEEE Medal of Honor is the highest recognition of the Institute of Electrical and Electronics Engineers (IEEE). It has been awarded since 1917, when its first recipient was Major Edwin H. Armstrong. It is given for an exceptional contributio ...

"for his extensive contributions to the field of radio and for his leadership in Institute affairs."

Selected works

* "Some Recent Measurements of Trans-Atlantic Radio Transmission", American Telephone and Telegraph Company, Proceedings of the National Academy of Sciences, April 24, 1923.

References

IEEE biography
* Brittain, J.E., "Ralph Bown and the golden age of propagation research", ''Proceedings of the IEEE'', Volume 85, Issue 9, September 1997, pages 1511-1513.

External links

* {{DEFAULTSORT:Bown, Ralph 1891 births 1971 deaths People from Fairport, New York Cornell University College of Engineering alumni Radio pioneers Scientists at Bell Labs IEEE Medal of Honor recipients Fellows of the American Physical Society