Phillip Hagar Smith
Phillip Hagar Smith (April 29, 1905; Lexington, Massachusetts – August 29, 1987; Berkeley Heights, New Jersey) was an electrical engineer, who became famous for his invention of the Smith chart. Smith graduated from Tufts College in 1928 with a BS degree in electrical engineering. While working for Bell Telephone Laboratories,[1] he invented his eponymous Smith chart[2] (which was also invented independently in 1937 by Mizuhashi Tosaku[3][4]).
When asked why he invented the chart, Smith explained, "From the time I could operate a slide rule, I've been interested in graphical representations of mathematical relationships." In 1969 he published the book Electronic Applications of the Smith Chart: In Waveguide, Circuit, and Component Analysis, a comprehensive work on the subject. He retired from Bell Labs in 1970. He was elected a fellow of the IRE in 1952.
Although best known for his Smith Chart, he made important contributions in a variety of fields, including radar, FM, and antennas (including use of the Luneburg lens).[1]
The IEEE History Center conducted an interview with Smith in 1973, the edited transcript and audio clips from which are on the web.[5]
Notes
- ^ a b Sss-mag.com Biography of Phillip Smith at the Wayback Machine (archived 2011-08-07)
- ^ "Phillip H. Smith: Originator of the Smith Chart". Microwave Journal. 1 (1): 44–45. July–August 1958.
- ^ "Smith Chart". ETHW.org. 26 February 2018. Retrieved March 30, 2021.
- ^ "1937 article" (PDF). Retrieved March 2, 2022.
- ^ "Oral History - Philip Smith". ETHW.org. 26 January 2021. Retrieved March 3, 2022.
External links
- Philip H. Smith, an oral history conducted in 1973 by Frank A. Polkinghorn, IEEE History Center
- Aziz S. Inan. "Remembering Phillip H. Smith on his 100th Birthday" (PDF). School of Engineering, University of Portland.
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