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#276 

w2aew
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Building upon the lessons in videos #274 and #275, this video describes how to design a 2-element L-Network to create an impedance match to the desired system impedance using series and shunt (parallel) inductors and capacitors. The design process is described, and then actual matching results are measured using a Smith Chart on a VNA. PDF of the show notes:
www.qsl.net/w2aew/youtube/Smit...
Previous Smith Chart videos:
#274: Basics of Smith Chart - Impedance and Admittance:
• #274: Smith Chart Basi...
#275: VSWR and Transmission Line Effects:
• #275: Smith Chart: Z, ...

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26 янв 2018

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Комментарии : 258   
@rodericksibelius8472
@rodericksibelius8472 2 года назад
I took a Microwave Electronics Technician Class for 9 months at Microwave Training Institute taught by Alan Scott who owned the school in Mt. View, SILICON Valley, California, way back in 1985, and we had PhD's and practicing employed Electrical engineers as was our INSTRUCTORS from companies in the Silicon Valley designing MICROWAVE microstrip amplifiers and learned the use of the Smith Chart, Vector Network Analyzers, antennas, klystrons, magnetrons, etc... etc.. and many other unique subjects about the history and current state of the art of Microwave Engineering. I am now retired and watching this VIDEO made me have great admiration and RESPECT that this SHORT video less than 12 minutes has given be QUICK REFRESHER COURSE of the the applied knowledge and practical computational skills that can be applied in the REAL WORLD of Design. THANK YOU for a WELL THOUGHT OUT Presentation, SIR!, You deserve a MILLION SUBSCRIBERS FOR THIS! ~ Retired Engineering Technician.
@davidcohen5938
@davidcohen5938 6 лет назад
There are instructors and there are teachers. You Alan are a gifted teacher, and you make the world a better place. Your ability to convey knowledge and understanding is truly a gift. Please keep it up.
@hankhamner3671
@hankhamner3671 5 лет назад
Very gifted man !
@ottoomen5076
@ottoomen5076 4 года назад
I agree.
@ashishderhgawen
@ashishderhgawen 7 месяцев назад
I just designed an L match network using a Smith chart. Seeing the impedance move to the center seemed like magic. This is such a powerful tool. Your video is excellent. Can't thank you enough.
@denelson83
@denelson83 Год назад
Ohm my goodness... I think I am starting to understand Smith charts a lot more, giving me a lot more insight when it comes to impedance matching.
@CuriouslyWatching
@CuriouslyWatching 4 года назад
You've rescued my semester with your videos. I am forever grateful to you. Thank you so so much
@w2aew
@w2aew 4 года назад
You're welcome! Please share my videos/channel with your classmates and professors. Do you mind telling me what school you're attending?
@johnthompson5034
@johnthompson5034 4 года назад
As a Radio Amateur (in more than one sense) this is the first time I've seen such a straightforward and practical explanation of impedance matching using a Smith Chart. No doubt these days there are ways of computing the values of components required but this method is just so satisfying and helps gain an understanding of what is actually involved in the process.
@PixelSchnitzel
@PixelSchnitzel 6 лет назад
Thank you a thousand times! The light has clicked on and I finally get it. Now to sit down with my VNA and do some hands-on to really sink the lesson in . . .
@George-gz5zm
@George-gz5zm 6 лет назад
Brilliant series on practical applications of the Smith chart. Better than university.
@johnwest7993
@johnwest7993 2 года назад
This is EXACTLY what I wanted to know, and now I know it. And in under 11 minutes. That was wonderfully clear. Thank you.
@sraiken
@sraiken Год назад
Very impressive. I wish I had seen this about 10 years during an antenna design and testing project. I did all you did but much more trial and error. At least I had a VNA and a good supply of passive components. One thing I learned is: RF system design is all about impedance matching!
@maxk4324
@maxk4324 5 лет назад
I study mechanical engineering, so you can imagine I am starting from scratch when it comes to RF circuitry. Yours is the first video out of SOOOOOOOOOOOOOOOOOOOOOOO many that I have watched about impedance matching that actually helped me understand the a practical approach to designing matching networks without getting bogged down with a textbook's worth of electrical engineering terms that a mech such as myself has no schooling in. Thank you so much for your hard work, and looking forward to watching more of your stuff :)
@boonedockjourneyman7979
@boonedockjourneyman7979 6 лет назад
I am amazed. Someone got the whole thing right in less than 20 minutes. Thank you.
@jeffomundson8761
@jeffomundson8761 6 лет назад
Thank you for putting this series together! You have clarified working with the smith chart, a subject I never really understood completely. It is really helpful to watch you work through an example. You are an Elmer to many...
@vonzigle
@vonzigle 6 лет назад
The best instructional video I’ve seen on the Smith chart-thanks!
@acestudioscouk-Ace-G0ACE
@acestudioscouk-Ace-G0ACE 3 года назад
Really well and clearly explained. You have a great gift for teaching. Your calm way of talking the student through, works really well for me. Thank-you!
@DavePKW
@DavePKW 3 года назад
I really enjoy this presentation. I come back and watch it ever so often just to refresh. Such an eloquent job. Thank you so much for all the fine work that you do.
@smgvbest
@smgvbest 6 лет назад
Wow, that was great. the RF and Smith Charts are new to me and I've had a major problem understanding them. while I won't say things are crystal clear this certainly moved me in that direction. Love your teaching style very much.
@philipyoung9002
@philipyoung9002 6 лет назад
Beautifully done! Love the presentation with actual hardware being used for me to get a feel of what's going on. Thumbs up, up , up.
@tohopes
@tohopes 6 лет назад
Absolutely great demonstration, Alan.
@ernieschatz3783
@ernieschatz3783 5 лет назад
This stuff is captivating to me. The graphical representation makes it so much easier to stay 'pointed in the right direction' when you are solving problems related to this.
@CH_Pechiar
@CH_Pechiar 6 лет назад
Excelente video como siempre! Gracias.
@octavmandru9219
@octavmandru9219 4 года назад
It is indeed magical how wonderful theory works. Thanks Alan
@rlamb51
@rlamb51 6 лет назад
Great Smithchart video series. I will invariably play through them often
@Luzt.
@Luzt. 4 года назад
Enjoy? Sir, you a rock star! I'm afraid I'll have to watch all you videos ;-). Thank you and good luck.
@alanwolke6253
@alanwolke6253 4 года назад
Thank you!
@apostolosgeorgiadis
@apostolosgeorgiadis 6 лет назад
Your capacity in delivering such well-structured and detailed tutorials, covering both the theoretical and experimental aspects is truly amazing. We are really grateful. Would you consider making a video on demonstrating and measuring the characteristic impedance of a transmission line and/or coax cable and its dependence on frequency?
@siamakdadras3825
@siamakdadras3825 4 года назад
Very informative and comprehensive video on impedance matching of a network. Thanks a million!
@ruvalcabagonzalezgerardo6316
@ruvalcabagonzalezgerardo6316 2 года назад
De verdad disfruto aprender con tus vídeos Haces que temas aparentemente complicados luzcan tal cual son Muchas gracias y saludos desde México 🇲🇽
@derosram9333
@derosram9333 6 лет назад
Wow, as a german electrical engineering student I enjoy your perfect practical-orientated Videos. Would be great to have a Video about RF-Oscillator design, especially good quality VCOs with low harmonics for QRP projects.
@stefanosmakris5641
@stefanosmakris5641 6 лет назад
Thank you for explaining with such clarity !
@twong689
@twong689 4 года назад
The video says a lot about impedance matching. Excellent!
@shidharthoroy4402
@shidharthoroy4402 2 года назад
Your videos are great to follow! And the touch you give with the practical approach really helps along the way. Nice!
@TheRadioShop
@TheRadioShop 6 лет назад
As always Alan very nice presentation. Thanks for doing these tutorials.
@soajpg
@soajpg 6 лет назад
you are wonderful man. you found the truth in this world, you helped many people. may you find the truth in the afterworld, thats the least advice/help i can give to you in return...
@gustavomatos7428
@gustavomatos7428 5 лет назад
Your videos are a fantastic supplement material for transmission lines courses!
@wk2w
@wk2w 6 лет назад
I spent a considerable amount of time poring through Caron's Impedance Matching book, but never quite understood it as well as I did after watching this short video. Seeing the initial problem with a complex load impedance, the calculations, the Smith chart plots, and the immediate results on the VNA made all the difference in the world. There is enough information in these videos to work through any matching problem. This Smith Chart series is invaluable. So glad you were willing to devote time to making the videos. I imagine the prep time to create these was very substantial. Thank you once again, Alan.
@w2aew
@w2aew 6 лет назад
I"m glad that this series of videos helped to shed some light on the subject for you!
@abrahamkennedy3016
@abrahamkennedy3016 5 лет назад
you are a magician, you are a magician. you saved me in midterm.
@Cptnbond
@Cptnbond 5 лет назад
Fantastic channel, really enjoy your clear and instructive style of presentations. I do have an electrical engineering exam, but boy I wished my teachers have been as good as you!
@user-wi2vl7wd7p
@user-wi2vl7wd7p 2 года назад
I didn't know about L circuit before i watch this video But now, thanks to ur explanation, i understood thanks for helping me :) From south korea
@TheMorningbirdFoundation
@TheMorningbirdFoundation 11 месяцев назад
Thank you for a very clear and concise explanation and example.
@MichaelLloyd
@MichaelLloyd 6 лет назад
Outstanding! I've needed this series for years. Smith Chart sales probably spiked when you released this video :o)
@southernexposure123
@southernexposure123 11 месяцев назад
Thank you. I've been looking for this information for days.
@JackZimmermann
@JackZimmermann 6 лет назад
I'll probably sound like a parrot, but your videos always keeps me amazed! Deep into RF now, and I'm actually thinking of getting a HAM license thanks to you. I find that I go back to your videos as reference again and again. If you're ever in Sweden, I'll buy you a beer.
@Scuba_Bro
@Scuba_Bro 4 года назад
Really great practical explanation of the topic. Wish I had more videos like this when I started grad school. Thanks for sharing the knowledge!
@idontseeit
@idontseeit 2 года назад
Hey there, I know this is an older video but your teaching methodology is brilliant. Clear, encouraging, patient, deliberate, etc. You ever thought about writing an RF textbook?
@w2aew
@w2aew 2 года назад
I've thought about it, and have even been asked about writing several times (RF, basic electronics, etc.), but just don't have the time.
@PelDaddy
@PelDaddy 6 лет назад
Great series. Thank you for all your hard work.
@availablenowonwards
@availablenowonwards 2 года назад
Excellent... he simply does a 'copy paste' to your mind..!
@alfredocrn
@alfredocrn 3 года назад
Awesome videos!!! keep making them. Very clear, concise and to the point!
@josegermanparra6064
@josegermanparra6064 2 года назад
Thanks again for a brilliant video! Using your video on the RF bridge and this I successfully tune my RandomWire antenna. Thanks!
@martinusher1
@martinusher1 2 года назад
Outstanding video. All this stuff is very obvious -- once its explained.
@garethm5kvk802
@garethm5kvk802 4 года назад
I've only just found this channel, Alan, and I'm very glad I did. I was looking for some videos to refresh my 40+ EE education on Smith Charts and came across it. As others have said on here, learning about Smith Charts at university or to pass Ham exams tends to be mainly theoretical, though I did design a couple of fixtures for early ham antennas, but your approach has the benefits of being theoretically sound and very engaging. I will be looking for others and have subscribed.
@DavidGillooly
@DavidGillooly 6 лет назад
Nice explanation and thanks for the mnemonics!
@grantfullen9559
@grantfullen9559 6 лет назад
GREAT video. Thanks for taking the time to make and share these videos
@sabahhadhood603
@sabahhadhood603 2 года назад
Excellent lecture.Thank you so so much.
@user-yr3qk1bx3w
@user-yr3qk1bx3w 4 года назад
I appreciate your good explanation.
@trollshavesouls
@trollshavesouls 6 лет назад
Great video! Helped me understand these concepts I’m learning in school! Thanks!
@diy-projects
@diy-projects 3 года назад
thank you * 1000. best video out there. this really helps me during my fields and waves class at college
@Nobody-ld7mk
@Nobody-ld7mk 4 года назад
AEW's video tutorials keep the knot's off your head. This one helps put the L/C icing on the cake. "Crazy Good" Circa 1939" Wow !
@zoolkhan
@zoolkhan 6 лет назад
greetings from Finland. i am very grateful for your teachings. i am a big fan and i hope you will never stop with your videos. 73 de oh8xat.
@leonardpeters3266
@leonardpeters3266 2 месяца назад
Thank you for this. Greatly appreciated.
@danielzdanowicz6899
@danielzdanowicz6899 3 года назад
Wow! Awesome! I NOW understand Smith Charts a bit better! Thanks.
@manishbarnwal9342
@manishbarnwal9342 2 года назад
Really helpful videos to understand practical implementation.. Thanks..!!
@michaellove7912
@michaellove7912 4 года назад
your videos are always helpful. thanks a bunch
@supyrow
@supyrow 6 лет назад
Alan you outdid yourself yet again, talk to you soon!
@nashme11
@nashme11 4 года назад
Excellent tutorial thanks.
@ITOinfoo
@ITOinfoo 6 лет назад
Nice!
@bloodedge
@bloodedge 6 лет назад
Nice, i can finally understand and user Smith Chart. Thanks you.
@Andreasonline3
@Andreasonline3 4 года назад
you are a bloody legend
@tr3kn3rd
@tr3kn3rd 3 года назад
Thank you for making this video
@sm4wwg
@sm4wwg 6 лет назад
Great video! Very informative!!!
@bblod4896
@bblod4896 6 лет назад
Great explanation. You should be an instructor. Thanks.
@rfdave3980
@rfdave3980 6 лет назад
Big fan. Keep them coming.
@nuwanatthanayake
@nuwanatthanayake 2 года назад
Thank you Sir.Great work.
@vk5fe943
@vk5fe943 5 лет назад
Thanks, Alan.
@philipacovington
@philipacovington 6 лет назад
Excellent!
@alaaalshurufat2998
@alaaalshurufat2998 6 лет назад
YOU ARE WONDERFUL
@caractacustube
@caractacustube 4 года назад
Thank you, I am in your debt!!
@tezlallc2900
@tezlallc2900 3 года назад
Really well done!
@mxcollin95
@mxcollin95 6 лет назад
Great video! 👍
@johnwoodcock5090
@johnwoodcock5090 4 года назад
Very nice. I prefer clockwise/counter-clockwise for adding reactances.
@buffplums
@buffplums 4 года назад
This is fabtantsitic given me the confidence to do some expirembtation
@shabeesatsangi
@shabeesatsangi 11 месяцев назад
I wish you were my teacher. i would have been at some good places designing some crazy stuff by now
@elpechos
@elpechos 4 года назад
Thanks very much. I love this.
@andrelubbock
@andrelubbock 3 года назад
thank you, very interesting
@rabbibacongrease88
@rabbibacongrease88 3 года назад
Great information
@baghdadiabdellatif1581
@baghdadiabdellatif1581 2 года назад
Thank you so much
@TheGmr140
@TheGmr140 3 года назад
Smith charts, I use online calculator or simple equation coded up in excel or matlab. Good to see this using microstrip traces
@grindz145
@grindz145 6 лет назад
This is awesome thanks!
@bunman2353
@bunman2353 2 года назад
you are a legend!
@JimNicholsMotorManiaGarage
@JimNicholsMotorManiaGarage 3 года назад
That was awesome! I could never find any information on how to build a matching network. Haha now I know why no one knows... It's math!! This was very informative and really something I've searched for many times. Thank you for the time you put into these videos. I'm a fan and new subscriber! 73, ke0eyh
@DonDegidio
@DonDegidio 6 лет назад
Hi Alan, Great demonstration. Deserves more than a thumbs up. :-) 73 WB3BJU
@reedschrichte800
@reedschrichte800 5 месяцев назад
Beautiful 🙂
@mariofachinsky5639
@mariofachinsky5639 Год назад
Super instructive and clear!!! thanks for sharing! 73 de LU2AW
@harry4516
@harry4516 6 лет назад
very nice video ! Thank you !
@neuralnetwork653
@neuralnetwork653 6 лет назад
Thank you!
@rcberry
@rcberry 4 года назад
Alan, very nice. I just purchased a NanoVNA. They are only $80.00 at Amazon and look pretty accurate for ham use. Check them out. Every ham can afford a VNA now. Amazing!
@786jinga
@786jinga 6 лет назад
Love It!!!! Awesome .........
@hamzaahmed2556
@hamzaahmed2556 5 лет назад
great work thanks
@123kjammy
@123kjammy 4 года назад
thank you
@indigoskywalker
@indigoskywalker 5 лет назад
Excellent video Alan, always wondered what these charts were called and what they represented
@MikeTalws
@MikeTalws 5 лет назад
Wish I could hit like button more than once!
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