Ralph Bown was a noted American

United States

The United States of America is a federal constitutional republic comprising fifty states and a federal district...

 radio

Radio

Radio is the transmission of signals through free space by modulation of electromagnetic waves with frequencies below those of visible light. Electromagnetic radiation travels by means of oscillating electromagnetic fields that pass through the air and the vacuum of space...

 pioneer.

Bown was born in Fairport, New York

Fairport, New York

Fairport is a village located in the town of Perinton which is part of Monroe County, New York. Fairport is a suburb east of Rochester. It is also known as the "Crown Jewel of the Erie Canal"...

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

Cornell University

Cornell University is an Ivy League university located in Ithaca, New York, United States. It is a private land-grant university, receiving annual funding from the State of New York for certain educational missions...

 where he also taught physics

Physics

Physics is a natural science that involves the study of matter and its motion through spacetime, along with related concepts such as energy and force. More broadly, it is the general analysis of nature, conducted in order to understand how the universe behaves.Physics is one of the oldest academic...

. He served as a captain in the United States Army Signal Corps

United States Army Signal Corps

The United States Army Signal Corps develops, tests, provides, and manages communications and information systems support for the command and control of combined arms forces. It was established in 1860, the brainchild of United States Army Major Albert J. Myer, and has had an important role from...

 in World War I

World War I

World War I , which was predominantly called the World War or the Great War from its occurrence until 1939, and the First World War or World War I thereafter, was a major war centred in Europe that began on 28 July 1914 and lasted until 11 November 1918...

, where he led vacuum tube

Vacuum tube

In electronics, a vacuum tube, electron tube , or thermionic valve , reduced to simply "tube" or "valve" in everyday parlance, is a device that relies on the flow of electric current through a vacuum...

 development as head of its radio laboratories technical department, then joined the American Telephone and Telegraph Company research department, which in 1934 became Bell Laboratories.

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

Telephony

In telecommunications, telephony encompasses the general use of equipment to provide communication over distances, specifically by connecting telephones to each other....

. He was also an expert in radar

Radar

Radar is an object-detection system which uses radio waves to determine the range, altitude, direction, or speed of objects. It can be used to detect aircraft, ships, spacecraft, guided missiles, motor vehicles, weather formations, and terrain. The radar dish or antenna transmits pulses of radio...

, and served as a division member and consultant of the National Defense Research Committee

National Defense Research Committee

The National Defense Research Committee 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 United States from June 27, 1940 until June 28, 1941...

 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

Transistor

A transistor is a semiconductor device used to amplify and switch electronic signals and power. It is composed of a semiconductor material with at least three terminals for connection to an external circuit. A voltage or current applied to one pair of the transistor's terminals changes the current...

.

Bown received the IEEE Morris N. Liebmann Memorial Award

IEEE Morris N. Liebmann Memorial Award

The initially called Morris Liebmann Memorial Prize provided by the Institute of Radio Engineers , 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 had "made public during the recent past an important...

 (1926), and served as President of the Institute of Radio Engineers

Institute of Radio Engineers

The Institute of Radio Engineers was a professional organization which existed from 1912 until January 1, 1963, when it merged with the American Institute of Electrical Engineers to form the Institute of Electrical and Electronics Engineers .-Founding:Following several attempts to form a...

 in 1927. In 1949, he received the IEEE Medal of Honor

IEEE Medal of Honor

The IEEE Medal of Honor is the highest recognition of the Institute of Electrical and Electronics Engineers . It has been awarded since 1917, when its first recipient was Major Edwin H. Armstrong. It is given for an exceptional contribution or an extraordinary career in the IEEE fields of...

 "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
  United States National Academy of Sciences
  The National Academy of Sciences is a corporation in the United States whose members serve pro bono as "advisers to the nation on science, engineering, and medicine." As a national academy, new members of the organization are elected annually by current members, based on their distinguished and...
  
  , April 24, 1923.