Understanding the Smith Chart

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  • Опубликовано: 2 ноя 2024

Комментарии • 186

  • @selvakumarr6672
    @selvakumarr6672 4 года назад +213

    Every University Teacher must watch this before teaching to students. Perfect, clear and neat way to explain. I request your team to continue posting such videos. Thank you so much.

    • @buffplums
      @buffplums 2 года назад +5

      My points exactly. As someone recently called to teach simplified communications in radio, these videos are an excellent source of refreshment of essential principles. I love the concise and pitch (for my level of interest anyway) of these videos and will take a leaf from the presentation style of these presentations.

    • @dionejohn8004
      @dionejohn8004 2 года назад +5

      My professor understood the assignment 😂

  • @LaplacianFourier
    @LaplacianFourier 4 года назад +106

    Wow you're the best. I spent 2 hours in class and didn't get a damn thing but this 10 minute and I feel like an expert. Thanks a lot.

  • @buffplums
    @buffplums 2 года назад +22

    I’m so impressed by how effective your short videos on VSWR and S Parameters are. I’m a lecturer who hasn’t worked in the field for many years but does occasionally dabble as a hobbyist. Recently I have been called upon to teach fundamental radio communications and it’s very refreshing to see these videos. Thank you.

  • @RandomMichael
    @RandomMichael 4 года назад +10

    It's been 50 years since I first saw the Smith Chart, never got it; now I understand a lot of things in ten minutes. Thanks. K4QET

  • @PedramNG
    @PedramNG 3 года назад +57

    God bless you mate, I have an exam today and I couldn't understand a single word from my brain-dead teacher. Thank you!

    • @Countolaf03
      @Countolaf03 6 месяцев назад

      Are you an EE now?

    • @PedramNG
      @PedramNG 6 месяцев назад

      @@Countolaf03 no, not anymore

    • @JeeJeeisLive
      @JeeJeeisLive 3 месяца назад

      What happened?​@@PedramNG

    • @I_am_FRANCO
      @I_am_FRANCO 3 месяца назад

      @@PedramNGnooooooo what happened

  • @lansleyONE
    @lansleyONE 11 месяцев назад +3

    I recently purchased a NanoVNA to tune my HF amateur radio antennas minimising the needing for a matching transformer. However, I was sticking to the VSWR display because the Smith chart looked complex. Thanks to this video I have found out so much more from reading Smith chart graphing now that I understand them! Thanks for making this understandable and clear.

  • @jimbarber183
    @jimbarber183 4 года назад +21

    Excellent presentation. Should be mandatory for anyone that works with or plans to work with RF.

  • @ronaldschild157
    @ronaldschild157 4 года назад +42

    That was really well done. It was the perfect presentation style (at least for me). And there was little to no subtle marketing of your company's brand; you simply presented the base concepts along with some historical background of who the Smith in "Smith Chart" was. I understand this so much better now. Thank you.

  • @nelsonlinkousii5174
    @nelsonlinkousii5174 3 года назад +5

    This is THE BEST "Readers Digest" Version of Smith Charts Ever. Thanks for this AWESOME Video and "To the Point" .approach!!

  • @AndyDaviesByTheSea
    @AndyDaviesByTheSea 4 года назад +14

    Thank you very much! I have started to read about Smith charts many times but always given up before getting to grips with it. Your professional presentation lifts the mystic vale and reveals the elegant simplicity of the chart. Thank you.
    Kind Regards . . . Andy. gw0jxm

  • @albert7ii
    @albert7ii 2 года назад +5

    Excellent. Just excellent... being a maths "dumbo" I've always struggled with the Smith Chart. Being a licensed radio amateur a proper understanding of the chart, it's functions, AND HOW THEY CAN BENEFIT ME by properly understanding them escaped me year on year,. NO MORE. Paul, Thank You ! this presentation should be part of every single radio amateurs course !
    Am very very grateful to you for this more than excellent video. Your companies instruments for us radio amateurs are the stuff dreams are made off. Sadly... lottery tickets to win them are far and few between... but,... we live in hope!
    Thank you again Paul.
    Albert

    • @pauldenisowski
      @pauldenisowski 2 года назад +2

      My pleasure Albert and thanks for the feedback - 73! Paul, KO4LZ

  • @keyd33
    @keyd33 4 года назад +26

    Has been 15 years I'm looking at antenna theory and never understood a Smith chart. In 10 minutes, I got it

  • @electricerger
    @electricerger Месяц назад +1

    This was a great refresher after barely using it for a few years. Also, I don't remember my profs teaching that it was a transformation of the cartesian representation, that definitely makes this easier to understand.

  • @szu-yulee390
    @szu-yulee390 Год назад +2

    This video should be directly used as teaching materials in university. So concise and inspiring.

  • @lowearthorbit-delio
    @lowearthorbit-delio Год назад +4

    This is the best Smith Chart refresher/lesson i've had. It makes me think why it has to be so complicated before. The technology ( video/graphical presentation) helped . Thanks. The training materials on this site , are all so Zen like.

    • @pauldenisowski
      @pauldenisowski Год назад +2

      Thanks! Really appreciate the feedback!

  • @MichaelShimniok
    @MichaelShimniok 2 года назад +5

    Outstanding job on this video. Simple, to the point, easy to understand, and clearly presented. Bravo!

  • @rsocor01
    @rsocor01 2 года назад +1

    Back in school, the Smith chart was clear as mud. After watching this video it is a lot clearer. Good job.

  • @f.allenrisler5303
    @f.allenrisler5303 3 года назад +4

    This is the best explanation I have ever seen Understanding the Smith Chart. Well done!

  • @jphdg
    @jphdg 3 месяца назад +1

    Great simple easy effective way to communicate how to use smith charts for understanding impedance. Thank you. This was very helpful to clear up and confirm a couple things I had been working through previously.

  • @gavinc1539
    @gavinc1539 Месяц назад +1

    Man I’m only a sophomore in high school and haven’t even taken a calculus class yet and somehow he made me understand this, please tell me your a professor or something dude!

    • @Rohde-Schwarz
      @Rohde-Schwarz  Месяц назад

      😎 👍

    • @pauldenisowski
      @pauldenisowski Месяц назад

      No, not a professor, just someone who's making the videos he wished that he had when he was in engineering school 🙂

  • @sikandark7819
    @sikandark7819 3 года назад +2

    A perfect way of explaining things. This guy should get an all time best-teacher award.

  • @shabirkabiri
    @shabirkabiri 7 месяцев назад +1

    Kudos Rhode Schwarz - these illustrations are invaluable. Thank you so much!

  • @rfsniffer3175
    @rfsniffer3175 7 месяцев назад +2

    The Tōsaku Mizuhashi Chart was published in 1937 two years before this Philip Smith Chart!!!

  • @thatkido612
    @thatkido612 2 года назад +2

    Saved tons of hours studying and listening to my course instructor!

  • @mshu4237
    @mshu4237 3 года назад +3

    solid 10mins cover my professor's 30mins lecture on smith chart
    thanks

  • @j14sanchezh
    @j14sanchezh 4 года назад +12

    Absolutely phenomenal!! Sir, your videos have helped me a tremendous amount in my course!!

  • @sohamlakhote9822
    @sohamlakhote9822 9 месяцев назад +1

    Short crisp and very well explained!!

  • @KhadijatuHBah-kz1lw
    @KhadijatuHBah-kz1lw 8 месяцев назад +1

    Perfect explanation. Thank you, sir.

  • @ve3enx95
    @ve3enx95 2 года назад +2

    Great explanation! Now I understand the display on the VNA better.

  • @thekingcraig
    @thekingcraig Год назад +1

    Perfect
    I understood without even handling a pen to write down
    Nicely done

  • @revanthn2635
    @revanthn2635 4 месяца назад +1

    great sir superb explanation and presentation is awesome

  • @glenmartin2437
    @glenmartin2437 2 года назад +1

    Thank you. That was the best summary on the Smith chart I have seen.

  • @Nobody-ld7mk
    @Nobody-ld7mk Год назад +1

    The VNA @ the end of this video is a righteous piece of work, would really enjoy seeing a tutorial on that piece of gear in use. Those handles on the front are so you can hang on to it while it rests on the night stand next to the bed.

    • @pauldenisowski
      @pauldenisowski Год назад

      Check out the Test and Measurement Fundamentals playlist at the top of the R&S RUclips channel: I've done a number of VNA related videos already and more are on the way!
      And as someone who worked as field apps engineer in T&M for > 20 years, I have a lot of experience with those handles :)

  • @che-hsiensu1774
    @che-hsiensu1774 5 месяцев назад +1

    What else can i say? This is just amazing! Thank you so much for saving me from my terrible university profs.

    • @pauldenisowski
      @pauldenisowski 4 месяца назад +1

      I’m sure they’re not that bad, but thanks!

  • @leadtoexemplify
    @leadtoexemplify 2 года назад +1

    Very good. Thanks. only people who understands the subject clearly can explain in simple terms - ofcourse one should have passion to explain. Only few people explain to be understood while many others explain to make it sound complex.

    • @pauldenisowski
      @pauldenisowski 2 года назад

      Even though I've been working in test and measurement for over 25 years, I still learn something new myself every time I start making a new video. :) Thanks!

  • @vasundhara8438
    @vasundhara8438 3 года назад +3

    U explained in a very simple manner ☺️ this giant type looking smith chart..thanks 🙏

  • @shrilaxmibhat6814
    @shrilaxmibhat6814 4 года назад +5

    The best and most precise video!!
    Appreciate the content and the length of the video :D
    Helped a lot! Thank u so much!

  • @bloguetronica
    @bloguetronica 4 года назад +4

    This is a great primer on understanding Smith charts. Very detailed explanation!

  • @raghavsamba
    @raghavsamba Год назад +1

    Beautifully explained....Thanks a ton....

  • @hubercats
    @hubercats 2 года назад +2

    A clear, concise overview. Nicely done!

  • @amariner5
    @amariner5 7 месяцев назад +1

    Thank you, I just found your RUclips Channel, but I have your Electronic Warfare pamphlet, and at least one Radio Spectrum chart.
    I operate a ship, and the radios, internet, satcomms, secure comms, and I'm looking to detect signals that might prove hostile. and hoping to maintain comms with the office, home, and on the ship.
    Plenty of radio challenges.
    I'm tackling them as they present themselves.
    Thanks for the learning materials!

  • @rutulpatel6003
    @rutulpatel6003 2 года назад +1

    Amazing way to discuss importance of smith chart along with illustrations.

  • @rararamatic
    @rararamatic Год назад +2

    I have nearly no idea how to apply this or when I'll use it but the graph usage was explained clearly and consisely. I have no background in electrical engineering but I'll come back to this at some point

    • @pauldenisowski
      @pauldenisowski Год назад

      Glad it was helpful - thanks for the feedback!

  • @azariahasafoagyei1580
    @azariahasafoagyei1580 2 года назад +2

    Thank you Rohde Schwarz!

  • @FamiliaPereiraCarpes
    @FamiliaPereiraCarpes 3 месяца назад +1

    Great video! Thanks.

  • @chrisscott1547
    @chrisscott1547 3 года назад +3

    Well done. I think for many viewers, showing a 2:1 VSWR circle would help.

    • @pauldenisowski
      @pauldenisowski 3 года назад +2

      Actually, I'm planning a number of other Smith Chart related videos, including one on constant VSWR circles :) Thanks for the suggestion!

  • @AnTiThesis-HaT-HoT
    @AnTiThesis-HaT-HoT 4 года назад +4

    Well done! I actually got that lot, You have a gift!

  • @3DComputing
    @3DComputing 2 года назад +1

    10 out of 10 I now remember what I learned 40+ years ago, god it was hard to do with a pencil

  • @yar23396550
    @yar23396550 Год назад +1

    Perfect and clear! Great thanks! It's very helpful to the person who never studied the electronics theory.

  • @ikbendusan
    @ikbendusan 4 года назад +3

    very helpful series of videos paul

  • @NT4XT
    @NT4XT 4 года назад +3

    wow. This is one of the best, most effective and efficient educational presentation of practical - u s e f u l information I have ever seen.
    In 294 seconds.
    Useful because my Extra ticket expired during a crazy time of life, and I will be retaking it, building a station, and doing SOTA POTA outings.
    Practical,
    because 4.2" TFT display, 50Khz-1Ghz VNA's can these days be had for $90-$100 delivered.
    My thanks to Rohde Schwartz and to the creator(s) of this video. Educational excellence beyond compare.

  • @WARATEL_114_30
    @WARATEL_114_30 2 года назад +2

    Very good explanation 🌹.
    Thank you

  • @drakehopkins5931
    @drakehopkins5931 3 года назад +3

    saved my day, great quick explanation

  • @elpechos
    @elpechos 4 года назад +11

    Clear and to the point. Thank you

  • @MoonGuard13
    @MoonGuard13 11 месяцев назад +1

    very nice explanation!

    • @pauldenisowski
      @pauldenisowski 9 месяцев назад

      Very much appreciate the feedback!

  • @shivateja186
    @shivateja186 3 года назад +2

    Clear and understanding.... Good presentation

  • @leox8038
    @leox8038 3 года назад +2

    Well done, a wonderful explanation, it was very easy to follow you step by step.

  • @melikeimre3081
    @melikeimre3081 11 месяцев назад +1

    Thank you very much. Is there a PDF of this presentation?

    • @pauldenisowski
      @pauldenisowski 9 месяцев назад

      Thanks! A whitepaper version is under development.

  • @TheNuclearBolton
    @TheNuclearBolton 2 года назад +1

    Absolutely helped me with making a PB&J sandwich

  • @RohitKumar-ft2wt
    @RohitKumar-ft2wt 3 года назад +2

    Great effort.. Thank you, Keep it up

  • @Polarit
    @Polarit 4 года назад +6

    Very well explained - well done!

  • @nasirmehmood7457
    @nasirmehmood7457 Год назад +1

    fabulous, speechless

  • @wormdamage
    @wormdamage Год назад +1

    Is that a vintage Rohde Schwarz VNA shown an the end? If so, what year would that be (approximately)? Just curious. BTW, freaking great video!

    • @pauldenisowski
      @pauldenisowski Год назад

      Thanks! That's the Z-g-Diagraph, the world's first network analyzer, which was developed by R&S in the 1950s.

  • @WarrenOsborne-n3x
    @WarrenOsborne-n3x Месяц назад +1

    Vague and distant memories of my father and some members of his ham radio club, designing their own antenna's. There was one of these charts laying on the bench. My 8 year old self got introduced to "imaginary numbers" it would be some 15 years later that this made any sense.

    • @pauldenisowski
      @pauldenisowski Месяц назад

      I think the second biggest mistake in the history of mathematics was using the word "imaginary" (instead of "complex") to describe these kinds of numbers. (The biggest mistake was Roman numerals😂)

  • @TheJowix
    @TheJowix 3 года назад +2

    Very efficent teaching! Thank you!

    • @pauldenisowski
      @pauldenisowski 3 года назад

      Thanks - as an engineer, efficiency is very important to me :)

  • @thekingcraig
    @thekingcraig Год назад +1

    Yeah you should definitely watch this

  • @curiousseal2678
    @curiousseal2678 3 года назад +2

    This just saved my bacon! Thank you

  • @wenliu7875
    @wenliu7875 4 года назад +3

    This is million times easier than the Wikipedia page

  • @shashankshashi2146
    @shashankshashi2146 2 года назад +1

    Well done best explanation simple and clear

  • @x_keamas
    @x_keamas 7 месяцев назад +1

    thank you so much for your effort.

  • @saisurya8509
    @saisurya8509 4 года назад +3

    Awesome Explanation.

  • @zachreyhelmberger894
    @zachreyhelmberger894 3 года назад +2

    Thank you!! Very good presentation!

  • @Legend_Hunter_Original
    @Legend_Hunter_Original 5 лет назад +11

    Simply amazing, Thanks

  • @nafizfahmi4270
    @nafizfahmi4270 Год назад +1

    Thank you bro god bless you!🦾

  • @maheshkumaraghwariya3947
    @maheshkumaraghwariya3947 4 года назад +3

    very nice explanation

  • @MrMarkneilson
    @MrMarkneilson 3 года назад +2

    Great very easy to understand now thankyou!

  • @AECRADIO1
    @AECRADIO1 Год назад +1

    Always a great quick refresher course when you do not use this tool on a daily basis.

  • @cybrim1
    @cybrim1 Год назад +1

    The greatest use of the smith chart is two wizards trying to simultaneously counterspell each other...

  • @maciejurbanski6206
    @maciejurbanski6206 3 года назад +2

    thanks, thanks, thanks... great explaination

  • @adarshshetty1882
    @adarshshetty1882 4 года назад +4

    Really awesome. Helped a lot. Thanks

  • @alextrofimov7947
    @alextrofimov7947 8 дней назад

    Exceptional explanation.

  • @thekingcraig
    @thekingcraig Год назад +1

    Thank you very much

  • @billdomb
    @billdomb 3 года назад +2

    Nice job!

  • @bowu2094
    @bowu2094 3 года назад +2

    It is very helpful.

  • @numberofthebeast98
    @numberofthebeast98 2 года назад +1

    quite efficient lesson, thanks a lot

  • @johneygd
    @johneygd 8 месяцев назад

    That device and it’s inner working Looks and sounds just fashinating.

  • @panthopothik6338
    @panthopothik6338 3 года назад +3

    Thank You

  • @MrFischvogel
    @MrFischvogel 3 года назад +2

    Thank you so much !

  • @prashantpandey2299
    @prashantpandey2299 4 года назад +3

    Top class !!👏👏👏

  • @xxmrrickxx
    @xxmrrickxx 8 месяцев назад

    Great presentation. In the example at 8:47, when you normalize the complex impedance, why does only the sign on the resistive component change? If I factor out -1, shouldn't we get -100 + j75 = -(100-j75)? Then -Z/50 = 2 -j1.5?

  • @aschemusicreations
    @aschemusicreations 2 года назад +1

    What about wavelength? For example, If i'm trying to solve for a cable of certain length...

    • @pauldenisowski
      @pauldenisowski 2 года назад

      There are LOTS of things you can do with the Smith chart. I'm planning future videos on topics like the one you mentioned.

  • @leadtoexemplify
    @leadtoexemplify 2 года назад +1

    Many doesn't realize that testing is as challenging as designing something if not more challenging

  • @johnconrad5487
    @johnconrad5487 3 года назад +3

    thanks a lot

  • @alessandrolima4266
    @alessandrolima4266 2 года назад +2

    Amazing

  • @dennisasamoah2213
    @dennisasamoah2213 5 лет назад +6

    simply amazing

  • @ankushthakare3997
    @ankushthakare3997 4 года назад +2

    You are amazing...thank you..🙏

  • @piyushkumar-wg8cv
    @piyushkumar-wg8cv 4 года назад +3

    GREATEXPLAINATION

  • @lucaacul853
    @lucaacul853 3 года назад +1

    NICE video to start to learn something for me new.
    i have a question please .
    in my LDMOS mrf6vp11kh i found included on data sheet the smith chart with this value Zload 4.6+j1.85 .
    what does it mean ? the characteristic output impedance? how can i understand this value better?

    • @pauldenisowski
      @pauldenisowski 3 года назад

      Assuming I'm looking at the same datasheet: there are two values given (plotted as points on the Smith Chart), one for Zsource (gate to gate impedance of test circuit) and one for Zload (drain to drain impedance of the test circuit). These are plotted as points, not lines, since they are the impedance values at a single frequency (130 MHz). Both impedances are complex, with a real (resistive) part and an imaginary (reactive) part. In order to maximize the power transfer (and reduce reflections, VSWR), complex impedances should be "matched" by having the impedance on "the other end" being the complex conjugate (i.e. reverse the sign of the imaginary part). So in the datasheet, the complex Zload impedance at 130 MHz is 4.6 + j1.85, which would be matched by having an impedance of 4.6 - j1.85 on the other end. This information can be used to select appropriate values of capacitance when designing the input and output matching networks. Hope that helps!

    • @lucaacul853
      @lucaacul853 3 года назад +1

      @@pauldenisowski many thanks

  • @aidanabregov5929
    @aidanabregov5929 4 года назад +1

    Baller video, pat yourself on the back you beautiful bastard!

  • @aouux1
    @aouux1 2 года назад +1

    That’s crazy but what are we going to need this for in life ?

    • @pauldenisowski
      @pauldenisowski 2 года назад +1

      Well, if you are an RF engineer, you might use it fairly often. In any other field, maybe not so much :)