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==References== {{reflist|25em |refs= <ref name="Mizuhashi_1937">{{cite journal |script-title=ja:四端子回路のインピーダンス変成と整合回路の理論 |title=Sì duānzǐ huílù no inpīdansu hensei to seigō kairo no riron |language=ja |trans-title=Theory of Four-Terminals Impedance Transformation Circuit and Matching Circuit |author-last=Mizuhashi<!-- also transscribed as: Mizuhasi --> [水橋] |author-first=Tōsaku [東作] |journal=The Journal of the Institute of Electrical Communication Engineers of Japan [電気通信学会雑誌] |issn=0914-5273 |publisher=[[Institute of Electrical Communication Engineers of Japan]] [電気通信学会] |volume=1937<!-- showa 12 --> |number=12 |date=December 1937 |orig-date=1937-11-19<!-- showa date: 12-11-19 --> |pages=1053–1058<!-- absolute pages --> (29–34<!-- relative pages -->) |url=http://www.linkclub.or.jp/~morikuni/mizuhashi-smithchart/Mizuhashi,J.IECEJ(1937).pdf |url-status=dead |archive-url=https://web.archive.org/web/20171116005011/http://www.linkclub.or.jp:80/~morikuni/mizuhashi-smithchart/Mizuhashi,J.IECEJ(1937).pdf |archive-date=2017-11-16}} (6 pages)</ref> <ref name="Okamura_1959">{{cite journal |script-title=ja:スミスチャートは日本人の独創ではないか |title=Sumisuchāto wa nihonjin no dokusōde wanai ka |language=ja |trans-title="Smith Chart" May Have Origin in Japan |author-last=Okamura [岡村] |author-first=Fumiyoshi [史良]<!-- This given name mentioned in the article's Japanese header --> / Shirō [獅郎]<!-- This given name mentioned in the article's English footnote --> |journal=The Journal of the Institute of Electrical Communication Engineers of Japan [電気通信学会雑誌] |issn=0914-5273 |publisher=[[Institute of Electrical Communication Engineers of Japan]] [電気通信学会] |location=Tokyo, Japan |volume=1959<!-- showa 34 --> |number=8 |date=August 1959 |orig-date=1959-04-04<!-- showa date: 34-04-04 --> |pages=768–769<!-- absolute pages --> (44–45<!-- relative pages -->) |url=http://www.linkclub.or.jp/~morikuni/mizuhashi-smithchart/Okamura,J.IECEJ(1959).pdf |url-status=dead |archive-url=https://web.archive.org/web/20171116005338/http://www.linkclub.or.jp/~morikuni/mizuhashi-smithchart/Okamura,J.IECEJ(1959).pdf |archive-date=2017-11-16}} (2 pages) (NB. The article lists the author's [[given name]] as {{lang|ja|史良}} in Japanese, which would translate as "Fumiyoshi", whereas the English footnote in the same article transscribed it as "Shirō", which would be associated with {{lang|ja|獅郎}} in Japanese.)</ref> <ref name="Kenichi_1999">{{cite book |script-title=ja:インピーダンスのはなし |title=Inpīdansu no hanashi |language=ja |trans-title=The story of impedance |author-last=Kenichi [伊藤健] |author-first=Ito [一著] |edition=1 |series=Science and Technology |publisher=[[Nikkan Kogyo Shimbun]] [日刊工業新聞社] |date=1999-11-01 |isbn=4-526-04463-6 |id={{EAN|978-4-526-04463-2}}. 1923054018007 |page=26}} (4+xi+1+207+3+4 pages)</ref> <ref name="Mori_2013">{{cite web |title=The Mizuhashi-Smith Chart |author-last=Mori [森] |author-first=Kunihiko [邦彦] |date=2013 |work=morikuni_net |url=http://www.linkclub.or.jp/~morikuni/mizuhashi-smithchart/ |access-date=2023-06-24 |url-status=dead |archive-url=https://web.archive.org/web/20130303005317/http://www.linkclub.or.jp/~morikuni/mizuhashi-smithchart/ |archive-date=2013-03-03}}</ref> <ref name="Smith_1939">{{cite magazine |title=<!-- A -->Transmission Line Calculator - A "cut-out" calculator for determining impedance and attenuation, in terms of the length of open-wire transmission lines |author-last=Smith |author-first=Phillip Hagar |author-link=Phillip Hagar Smith |magazine=[[electronics (magazine)|electronics]] - radio, communication, industrial applications of electron tubes ... engineering and manufacture |issn=0013-5070 |publisher=[[McGraw-Hill Publishing Company, Inc.]] |publication-place=New York, USA |volume=12 |issue=1 |pages=29–31 |date=January 1939 |url=https://worldradiohistory.com/Archive-Electronics/30s/Electronics-1939-01.pdf |access-date=2023-07-09 |url-status=live |archive-url=https://web.archive.org/web/20230708221149/https://worldradiohistory.com/Archive-Electronics/30s/Electronics-1939-01.pdf |archive-date=2023-07-08}} (3 pages)</ref> <ref name="Smith_1944">{{cite magazine |title=An Improved Transmission Line Calculator - An extension of the "calculator" originally published in ELECTRONICS in January 1939. New parameters have been added and accuracy has been improved. |author-last=Smith |author-first=Phillip Hagar |author-link=Phillip Hagar Smith |magazine=[[electronics (magazine)|electronics]] |issn=0013-5070 |publisher=[[McGraw-Hill Publishing Company, Inc.]] |publication-place=New York, USA |volume=17 |issue=1 |pages=130–133, 318, 320, 322, 324–325 |date=January 1944 |url=https://worldradiohistory.com/Archive-Electronics/40s/Electronics-1944-01.pdf |access-date=2023-07-09 |url-status=live |archive-url=https://web.archive.org/web/20230131151634/https://worldradiohistory.com/Archive-Electronics/40s/Electronics-1944-01.pdf |archive-date=2023-01-31}} (4+5 pages)</ref> <ref name="Smith_1969">{{cite book |title=Electronic Applications of the Smith Chart: In Waveguide, Circuit and Component Analysis |author-first=Phillip Hagar |author-last=Smith |author-link=Phillip Hagar Smith |date=June 1969 |edition=1 |publisher=[[McGraw-Hill Book Company]] / Kay Electric Company |publication-place=New York, USA |location=Pine Brook, New Jersey, USA |lccn=69-12411 |isbn=0-07058930-5 |id={{ISBN|978-0-07058930-8}}}} (xxvii+1+222 pages + envelope with 4 translucent plastic overlays + Kay Electric Company postcard) (NB. There is a 1983 reprint of the first edition by Robert E. Krieger Publishing Company with {{ISBN|978-0-89874-552-8|0-89874-552-7}}, and a {{citeref|Smith|2000|second edition|style=plain}} by Noble Publishing Corporation.)</ref> <ref name="Smith_1995">{{cite book |title=Electronic Applications of the Smith Chart: In Waveguide, Circuit and Component Analysis |author-first=Phillip Hagar |author-last=Smith |author-link=Phillip Hagar Smith |date=October 2000<!-- reprint of 2nd edition still under Noble --> |orig-date=1995<!-- first printing of 2nd edition by Noble --> |edition=2 |publisher=[[Noble Publishing Corporation]] |publication-place=Atlanta, Georgia, USA |lccn=00-045239 |isbn=1-884932-39-8 |id={{ISBN|978-1-884932-39-7}} |quote-page=xiv |quote=[…] From [[John Ambrose Fleming|Fleming]]'s equation,{{citeref|Fleming|1912|A}} and in an effort to simplify the solution of the transmission line problem, he developed his first graphical solution in the form of a rectangular plot. […] the diagram gradually evolved through a series of steps. The first rectangular chart was limited by the range of data it could accommodate. He was aware of the limitations and kept working on the problem until some time in 1936, when he developed a new diagram that eliminated most of the difficulties. The new chart was a special [[polar coordinate]] form in which all values of impedance components could be accommodated. The data for this diagram was scaled from the earlier rectangular diagram. The impedance coordinates in this case were not orthogonal and were not true circles, but, in the form chosen, the standing wave ratio was linear. The chart closely resembled what ultimately became the final result. [[Phillip Hagar Smith|Phil]], however, suspected that a grid made up of a system of orthogonal circles might be more practical. He felt it would have distinct advantages, particularly as regards reproducibility. With this in mind, he spoke to two of his co-workers, [[Enoch B. Ferrell|E.B. Ferrell]] and [[James W. McRae|J.W. McRae]]. Because they were familiar with the principles of [[conformal mapping]], they were able to develop the transformation whereby all data from zero to infinity could be accommodated. Fortunately, curves of constant standing wave ratio, constant attenuation and constant reflection coefficient were all circles coaxial with the center of the diagram. The scales for these values, while not linear, were entirely satisfactory. A diagram designed along these lines was constructed in early 1937. It was essentially the form still being used today. Smith approached a number of technical magazines with regard to publication of the Chart, but acceptance was slow. There were not many technical magazines at the time, and none in the microwave area. However, in January of 1939, after a delay of two years, the {{citeref|Smith|1939|article was printed|style=plain}} in [[Electronics (magazine)|Electronics]] magazine. […]}} (xxvi+237+1 pages + envelope with 4 translucent plastic overlays) (NB. There is a 2006 reprint of the second edition by [[SciTech Publishing, Inc.]] under the same ISBN and LCCN.)</ref> <ref name="ETHW_2018">{{cite web |title=Smith Chart |website=ETHW.org |date=2018-02-26 |url=https://ethw.org/Smith_Chart |access-date=2021-03-30 |url-status=live |archive-url=https://web.archive.org/web/20230708231337/https://ethw.org/Smith_Chart |archive-date=2023-07-08}}</ref> <ref name="Ramo-Whinnery-Duzer_1965">{{cite book |title=Fields and Waves in Communications Electronics |author-last1=Ramo |author-first1=Simon "Si" |author-link1=Simon Ramo |author-last2=Whinnery |author-first2=John Roy |author-link2=John Roy Whinnery |author-last3=Van Duzer |author-first3=Theodore |date=1965 |edition=1 |publisher=[[John Wiley & Sons]] |pages=35–39}}</ref> <ref name="Ramo-Whinnery-Duzer_1994">{{cite book |title=Fields and Waves in Communications Electronics |chapter=5.9. The Smith Transmission-Line Chart / 5.10. Some Uses of the Smith Chart |author-last1=Ramo |author-first1=Simon "Si" |author-link1=Simon Ramo |author-last2=Whinnery |author-first2=John Roy |author-link2=John Roy Whinnery |author-last3=Van Duzer |author-first3=Theodore |date=1994 |edition=3 |publisher=[[John Wiley & Sons, Inc.]] |isbn=978-0-471-58551-0 |pages=236–245}}</ref> <ref name="Pozar_2005">{{cite book |title=Microwave Engineering |author-last=Pozar |author-first=David Michael |author-link=David Michael Pozar |date=2005 |edition=3 |publisher=[[John Wiley & Sons, Inc.]] |pages=64–71 |isbn=0-471-44878-8}}</ref> <ref name="Gonzalez_1997">{{cite book |title=Microwave Transistor Amplifiers Analysis and Design |author-last=Gonzalez |author-first=Guillermo |author-link= |date=1997 |edition=2 |publisher=[[Prentice Hall]] |place=New Jersey, USA |isbn=0-13-254335-4 |pages=93–103}}</ref> <ref name="Bevelacqua_2013">{{cite web |title=The Smith Chart |author-first=Peter Joseph |author-last=Bevelacqua |date=2013-01-11 |orig-date=2010 |website=www.antenna-theory.com |url=http://www.antenna-theory.com/tutorial/smith/chart.php |access-date=2023-07-09 |url-status=live |archive-url=https://web.archive.org/web/20230708231713/https://www.antenna-theory.com/tutorial/smith/chart.php |archive-date=2023-07-08}}</ref> <ref name="Tektronix_2017">{{cite web |title=Antenna Matching with a Vector Network Analyzer |date=2017-10-06 |work=Tek |publisher=[[Tektronix, Inc.]] |url=https://www.tek.com/blog/antenna-matching-vector-network-analyzer |access-date=2023-07-09 |url-status=live |archive-url=https://web.archive.org/web/20230708231720/https://www.tek.com/en/blog/antenna-matching-vector-network-analyzer |archive-date=2023-07-08}}</ref> <ref name="Hayt_1981">{{cite book |title=Engineering Electromagnetics |author-last=Hayt, Jr. |author-first=William Hart |author-link=:d:Q59626592 |date=1981 |edition=4 |publisher=[[McGraw-Hill, Inc.]] |pages=428–433 |isbn=0-07-027395-2}} (527 pages)</ref> <ref name="Davidson_1989">{{cite book |title=Transmission Lines for Communications with CAD Programs |author-last=Davidson |author-first=Colin William |edition=2 |publisher=[[Macmillan Education Ltd]] |publication-place=Basingstoke, Hampshire, UK |isbn=0-333-47398-1 |date=1989 |id=ark:/13960/s2dzmfrhg24 |pages=80–85 |url=https://archive.org/details/transmissionline0000davi/page/n7/mode/1up= |access-date=2023-07-09}} (viii+244 pages)</ref> <ref name="Muller-Soto-Dascalu-Neculoiu-Boria_2011">{{cite journal |title=A 3D Smith chart based on the Riemann sphere for active and passive microwave circuits |author-first1=Andrei A. |author-last1=Muller |author-first2=Pablo |author-last2=Soto Pacheco |author-first3=Dan |author-last3=Dascălu |author-link3=:ro:Dan Dascălu |author-first4=Dan |author-last4=Neculoiu |author-first5=Vicente<!-- also written as: Vincente --> E. |author-last5=Boria<!-- also written as: Boria-Esbert --> |date=2011 |journal=[[IEEE Microwave and Wireless Components Letters]] |issn=1531-1309 |publisher=[[IEEE Microwave Theory and Techniques Society]] |volume=21 |issue=6 |pages=286–288 |doi=10.1109/LMWC.2011.2132697 |hdl=10251/55107 |s2cid=38953650 |hdl-access=free}}</ref> <ref name="Muller-Asavei-Moldoveanu-Sanabria-Codesal-Khadar-Popescu-Dascalu-Ionescu_2020">{{cite journal |title=The 3D Smith Chart: From Theory to Experimental Reality |author-last1=Muller |author-first1=Andrei A. |author-last2=Asavei |author-first2=Victor |author-last3=Moldoveanu |author-first3=Alin |author-last4=Sanabria-Codesal |author-first4=Esther |author-last5=Khadar |author-first5=Riyaz A. |author-last6=Popescu |author-first6=Cornel |author-last7=Dascălu |author-first7=Dan |author-link7=:ro:Dan Dascălu |author-last8=Ionescu |author-first8=Adrian M. |date=November 2020 |journal=[[IEEE Microwave Magazine]] |issn=1527-3342 |publisher=[[IEEE Microwave Theory and Techniques Society]] |volume=21 |issue=11 |pages=22–35 |doi=10.1109/MMM.2020.3014984 |s2cid=222296721 |url=http://infoscience.epfl.ch/record/280816}}</ref> <ref name="Volpert_1940">{{cite news |script-title=ru:Номограмма для расчета длинных линий |title=Nomogramma dlya rascheta dlinnykh liniy |language=ru |trans-title=Nomogram for calculating long lines |author-first=Amiel Rafailovich [Амиэ́ль Рафаи́лович] |author-last=Volpert [Во́льперт] |author-link=:ru:Вольперт, Амиэль Рафаилович |newspaper=Производственно-технический бюллетень (Proizvodstvenno-tekhnicheskiy byulleten') [Industrial and technical bulletin] |location=[[Leningrad]]<!-- Ленинград -->, СССР |date=February 1940 |volume=1940 |number=2 |publisher={{ill|People's Commissariat of the Electrical Industry of the USSR|ru|Народный комиссариат электропромышленности СССР|lt=НКЭП}} |pages=14–18}} (5 pages)</ref> <ref name="Kurochkin_2009">{{cite web |script-title=ru:Диаграмма Вольперта – Смита. Расчет и анализ характеристик усилителей радиосигналов<!--: метод. пособие по дисциплине «Радиоприем. устройства» для студентов специальностей «Радиотехника», «Радиоэлектр. системы», «Радиоинформ.», «Радиоэлектр. защита информ. --> |title=Diagramma Vol'perta – Smita. Raschet i analiz kharakteristik usiliteley radiosignalov |language=ru |trans-title=The Volpert–Smith diagram. Calculation and analysis of the characteristics of amplifiers of radio signals<!-- : Method. manual on the subject of "Radio reception devices" for students of the specialties "Radio engineering", "Radio electrical systems", "Radioinform.", "Radioelectro. information protection." --> |author-first=Alexander Evdokimovich [Александр Евдокимович] |volume=2009 |number=87 |author-last=Kurochkin [Курочкин] |date=2009 <!-- |orig-date=2004-04-30 --> |publisher=Department of Radio Engineering Devices, Belarusian State University of Informatics and Radio Electronics, Ministry of Education of the Republic of Belarus educational institution<!-- БГУИР [BGUIR] --> |location=Minsk, Belarus |isbn=978-9-85-488-422-6 <!-- |hdl=123456789/310 --> |url=https://libeldoc.bsuir.by/bitstream/123456789/310/2/Kurochkin_Diagr.pdf |access-date=2023-07-09 |url-status=live |archive-url=https://web.archive.org/web/20230709120141/https://libeldoc.bsuir.by/bitstream/123456789/310/2/Kurochkin_Diagr.pdf |archive-date=2023-07-09 |quote-page=4 |script-quote=ru:Диаграмма Смита остается одним из наиболее полезных графических инструментов для разработки высокочастотных усилительных каскадов. В нашей стране аналогичная диаграмма известна как круговая номограмма А. Р. Вольперта, который в 1939 г. независимо от Смита разработал и применил ее для пересчёта проводимостей и сопротивлений в отрезках линий передачи. |quote=Diagramma Smita ostayetsya odnim iz naiboleye poleznykh graficheskikh instrumentov dlya razrabotki vysokochastotnykh usilitel'nykh kaskadov. V nashey strane analogichnaya diagramma izvestna kak krugovaya nomogramma A. R. Vol'perta, kotoryy v 1939 g. nezavisimo ot Smita razrabotal i primenil yeye dlya pereschota provodimostey i soprotivleniy v otrezkakh liniy peredachi. |trans-quote=In our country, a similar diagram is known as a circular nomogram of A. R. Volpert, who in 1939, independently of Smith developed and applied it to recalculate conductances and resistances in segments of transmission lines.}} [https://web.archive.org/web/20230625131917/https://vk.com/wall-185886861_452?lang=en][https://vk.com/doc558553917_527458558?hash=ojEAr3vwhjjd3f2Fh1zr4iCnLRO1oIseQx1QPzHLxgP][https://web.archive.org/web/20230709120115/https://libeldoc.bsuir.by/handle/123456789/310] (40+1 pages)</ref> <ref name="Voltmer_2007">{{cite book |title=Fundamentals Of Electromagnetics 2. Quasistatics And Waves |chapter=8.2. The Smith Chart |author-first=David |author-last=Voltmer |series=Synthesis Lectures On Computational Electromagnetics |volume=2 |date=2007-08-17 |edition=1 |number=Lecture 15 |editor-first=Constantine A. |editor-last=Balanis |editor-link=Constantine A. Balanis |issn=1932-1716<!-- series --> |publisher=[[Morgan & Claypool]] |doi=10.2200/S00078ED1V01Y200612CEM015 |isbn=978-1-59829172-8 |id={{ISBN|1-59829172-6}}. <!-- Arizona State University Library of Congress Cataloging-in-Publication Data Series -->LoC 1932-1252. MOBK081-FM |pages=135–141 [135] |s2cid=9045052 |url=https://vdoc.pub/documents/fundamentals-of-electromagnetics-2-quasistatics-and-waves-3qq83vm9q64g |access-date=2023-06-25 |quote-page=135 |quote=Though Volpert of the Soviet Union and Mizuhashi of Japan proposed essentially the same chart during the same year, Smith received the recognition.}}</ref> <ref name="Salov_2022">{{cite book |title=Antenna Impedance Measurement and Matching |chapter=4. Volpert–Smith Chart |author-first=Mikhail |author-last=Salov |type=Application note |date=March 2022 |publisher=[[Texas Instruments]] |id=SWRA726 |page=11 |url=https://www.ti.com/lit/an/swra726/swra726.pdf?ts=1687781229182&ref_url=https%253A%252F%252Fwww.ti.com%252Fproduct%252FCC1352R |access-date=2023-06-26 |url-status=live |archive-url=https://web.archive.org/web/20230626154445/https://www.ti.com/lit/an/swra726/swra726.pdf?ts=1687781229182&ref_url=https%25253A%25252F%25252Fwww.ti.com%25252Fproduct%25252FCC1352R |archive-date=2023-06-26}} (51 pages)</ref> <ref name="MAX_2012">{{cite web |title=Impedance Matching and Smith Chart Impedance |author= |date=2012 |orig-date=2002-07-22 |id=Tutorial 742 |type=Application note |publisher=[[Maxim Integrated Products, Inc.]] |url=https://www.analog.com/en/technical-articles/impedance-matching-and-smith-chart-impedance-maxim-integrated.html |access-date=2023-07-09 |url-status=live |archive-url=https://web.archive.org/web/20230709113110/https://www.analog.com/en/technical-articles/impedance-matching-and-smith-chart-impedance-maxim-integrated.html |archive-date=2023-07-09}}[https://web.archive.org/web/20230709113219/https://www.analog.com/media/en/technical-documentation/tech-articles/impedance-matching-and-smith-chart-impedance-maxim-integrated.pdf] (18 pages) (NB. A previous version of this article appeared in the July 2000 issue of ''[[RF Design (magazine)|RF Design]]''.)</ref> <ref name="Linton_1950">{{cite magazine |author-last=Linton, Jr. |author-first=R. L. |location=Antenna Laboratory, University of California, Berkeley, California, USA |title=Graph for Smith Chart |magazine=[[electronics (magazine)|electronics]] |issn=0013-5070 |publisher=[[McGraw-Hill Publishing Company, Inc.]] |publication-place=New York, USA |volume=23 |issue=1 |date=January 1950 |pages=123, 158 |url=https://worldradiohistory.com/Archive-Electronics/50s/Electronics-1950-01.pdf |access-date=2023-07-22 |url-status=live |archive-url=https://web.archive.org/web/20230131151823/https://worldradiohistory.com/Archive-Electronics/50s/Electronics-1950-01.pdf |archive-date=2023-01-31}}</ref> <ref name="GeneralRadio_1950">{{cite magazine |title=Impedance Measurement-Smith Chart with Example Plotted |magazine=[[General Radio Experimenter]] |publisher=[[General Radio Company]] |publication-place=Cambridge, Massachusetts, USA |volume=XXV |issue=6 |date=November 1950 |pages=5–7 |url=https://worldradiohistory.com/Archive-Company-Publications/Archive-General-Radio/GR%20Exp%201950_11.pdf |access-date=2023-07-22 |url-status=live |archive-url=https://web.archive.org/web/20230722174932/https://worldradiohistory.com/Archive-Company-Publications/Archive-General-Radio/GR%20Exp%201950_11.pdf |archive-date=2023-07-22}}</ref> <ref name="Inan_2005">{{cite conference |title=Remembering Phillip H. Smith on his 100th Birthday |author-first=Aziz S. |author-last=Inan |date=2005-07-03<!-- /08 --> |conference=2005 [[IEEE Antennas and Propagation Society International Symposium Digest]] |publisher=[[IEEE Antennas and Propagation Society]] |publication-place=Washington, D.C., USA |location=School of Engineering, University of Portland, Portland, Oregon, USA |volume=3B |isbn=0-7803-8883-6 |issn=1522-3965 |eissn=1947-1491 |doi=10.1109/APS.2005.1552450 |pages=129–132 |url=https://faculty.up.edu/ainan/aps2005inanMarch05.pdf |access-date=2023-07-02 |url-status=live |archive-url=https://web.archive.org/web/20230702163157/https://faculty.up.edu/ainan/aps2005inanMarch05.pdf |archive-date=2023-07-02}} (NB. This is a corrected version of the originally published paper.)</ref> }}
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