Phillip Hagar Smith

Source: Wikipedia, the free encyclopedia.
For other people named Philip Smith, see Philip Smith (disambiguation).

Phillip Hagar Smith (April 29, 1905 – August 29, 1987) was an American

electrical engineer, who became famous for his invention of the Smith chart
.

Smith was born in

Bell Telephone Laboratories,[1] he invented his eponymous Smith chart[2][3][4][5] (which was also invented independently in 1937 by Tōsaku Mizuhashi (水橋東作)[6][7] and in 1939 by Amiel R. Volpert [ru] (Амиэ́ль Р. Во́льперт)[8]
).

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.[9][10] He retired from Bell Labs in 1970. He was elected a fellow of the Institute of Radio Engineers 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

Lüneburg lens).[1][5]

The IEEE History Center conducted an interview with Smith in 1973, the edited transcript and audio clips from which are on the web.[11]

Smith died in Berkeley Heights, New Jersey in 1987.

References

  1. ^
    Noble Publishing Corporation
    .)
  2. ISSN 0013-5070. Archived
    (PDF) from the original on 2023-07-08. Retrieved 2023-07-09. (3 pages)
  3. ISSN 0013-5070. Archived
    (PDF) from the original on 2023-01-31. Retrieved 2023-07-09. (4+5 pages)
  4. ^ "Phillip H. Smith: Originator of the Smith Chart". Microwave Journal. 1 (1): 44–45. July–August 1958.
  5. ^
    ISSN 1522-3965. Archived
    (PDF) from the original on 2023-07-02. Retrieved 2023-07-02. (NB. This is a corrected version of the originally published paper.)
  6. ^ "Smith Chart". ETHW.org. 2018-02-26. Archived from the original on 2023-07-04. Retrieved 2021-03-30.
  7. ISSN 0914-5273. Archived from the original
    (PDF) on 2017-11-16. (6 pages)
  8. Leningrad
    , СССР. НК.ЭП.
  9. ISBN 978-0-89874-552-8, 0-89874-552-7, and a second edition
    by Noble Publishing Corporation.)
  10. SciTech Publishing, Inc.
    under the same ISBN and LCCN.)
  11. The Institute of Electrical and Electronics Engineers, Inc. Interview #003. Archived
    from the original on 2023-07-02. Retrieved 2022-03-03 – via ETHW.org.


Stub icon

This article about a United States engineer, inventor or industrial designer is a stub. You can help Wikipedia by expanding it.

Retrieved from "https://en.wikipedia.org/w/index.php?title=Phillip_Hagar_Smith&oldid=1219524775"