Flawless PCB design: RF rules of thumb - Part 1

[@TheRevenant-pn2xi]

thank you very much for the super helpful practical video!

[@HansRosenberg74]

Great to hear!

[@kensmith5694]

You made a slight error: Between two traces in a PCB, the dielectric constant is not really 1. The volume of space between the traces that gets used by the capacitance involves some "fringing" making it use some space that is inside the PCB. It doesn't change your argument but if you measure on a PCB you will see the capacitance is a bit higher than you expect.

[@HansRosenberg74]

you're absolutely right! I was doubting weather I should go into that level of detail, because, as you said, it does not change the argument. Well spotted! :-)

[@RoboticsDIY]

Subscribed 😅 Happy to find both of your channels as I'm slowly learning PCB design

[@robr8554]

How do I get a copy of your book?

[@HansRosenberg74]

You can get it here: www.hans-rosenberg.com/checklist Best regards, Hans

[@SkokuhleMrSK]

Send me the checklist

[@thepega97]

Hi! Studying now 4th year electrical engineering and your video was great! Send met the Checklist

[@HansRosenberg74]

thanks. link is in the description. Best regards, Hans

[@ggendel]

Thank you. This was a clear explanation of issues with ground-planes which presented a complex issue making it relatively intuitive. Sounds like there are a lot more goodies in your checklist. I'd love a copy.

[@HansRosenberg74]

You're welcome You can get the checklist here: www.hans-rosenberg.com/checklist Best regards, Hans

[@ZzFlaviazZ]

hi! i am a mechanical engineer undergraduate that had to do analogue pcb design and your videos saved me. so thankful for the free checklist!

[@HansRosenberg74]

You're welcome

[@linkh200]

The physical layout and routing of PCB designs where RF is present are 100% vital. I just completed my first design of a board and the layout and routing were scrutinized just as much as the actual schematic design itself. Awesome video! Im will definitely be checking out your other videos and look forward to future ones as well.

[@HansRosenberg74]

Thanks!

[@SpinStar1956]

SUBSCRIBED!!! I am a retired electrical engineer and did mostly digital but have dedicated my remaining heartbeats to attempting to master RF design as best I can. So, I enjoyed your video very much and appreciate the modeling and measurements that you made. Also, looks like this is a new channel so I hope you do mainly RF (at least for me) Many years ago, I got pushed into designing a 2-layer RF PCB. So, I just put the GP on the top; circuit traces on the bottom and used TH ccomponents. The board worked amazingly fine and later I learned that this was the correct way to do it, In my mind, it was the only way to get a continuous and contiguous GP! Anyway, looking forward to further videos... 73!

[@HansRosenberg74]

Thanks a lot, hope I'm improving your 'retirement experience' :-D You can get the checklist here: www.hans-rosenberg.com/checklist Best regards, Hans Oh, my 3rd video is out, all on RF! Hope you enjoy that one as well.

[@RexRectumIV]

As a teacher starting to teach PCB design to high school students (without an electrical engineering background), these and Phils Labs videos are amazing. Thank you so much! Please send me the checklist! Thanks!

[@HansRosenberg74]

You're welcome. Link is in the description. Best regards, Hans

[@Ek1Tyr]

Awesome! This is so well made and practical. Thank you for sharing your knowledge!

[@HansRosenberg74]

You're very welcome!

[@StevenStyczinski-sy8cj]

I definitely appreciate that you are sharing your experiences that you remember and Learned from. Thank you. Learning is about making mistakes; recognizing and learning from them and then pass on that knowledge to those that are willing to listen and learn. Those that were taught to stay away from FIRE never had a good barbecue!

[@HansRosenberg74]

Haha, like the BBQ remark! Thanks!

[@annag5458]

So rare to see this level of detail and explanation to such a vital and intrinsic part of our daily lives, electronic design. I was due to do some LVDS work and was somewhat nervous of board layout challenges. A copy of your checklist would be really welcome.....Thank you

[@HansRosenberg74]

You're welcome. You can get it here: www.hans-rosenberg.com/checklist Best regards, Hans

[@ronlinde2140]

Hi Hans, you started a channel to educate people. Cool! Nice to see that you share some of your experience 👍🏻 Regards, Ron (now lecturing engineering at NHL Stenden)

[@HansRosenberg74]

Hey Ron, leuk te horen! Ik ga alles proberen te delen wat ik geleerd heb sinds ik op mijn 8ste begonnen ben met electronica.... kan een jaartje of wat gaan duren :-) Groetjes, Hans

[@kingsman428]

Hans, what a fantastic video, thank you very much for all your efforts I've learnt a lot. 10/10 from me.

[@HansRosenberg74]

Thanks a lot, links are in the description (working on my domain, so check out both, one of them will certainly work), best regards, Hans

[@StevenStyczinski-sy8cj]

Bravo; very good explanations! In the 1970’s and 1980’s as a hobbyist I had several friends that were printed circuit board designers. They said that designing pcb’s was an ART. And they prided themselves on designing their pcb’s to look aesthetically pleasing. They would arrange all the resistor in nice neet rows, Then they would blame the circuit routing software on why their circuit boards didn’t work!

[@HansRosenberg74]

Hahaha, great story, I also think it's an art, just another kind of art :-D

[@ClaudioGabrielCastillo-uq4hj]

No tengo idea que camino vas a tomar con electronica de RF.........pero simplemente por ser RF te voy a seguir. Hay tan poco material de RF bien explicado que tu canal se vuelve valioso.

[@HansRosenberg74]

Sorry, my spanish or portuguese is a little rusty :-) (as in, nonexistant)

[@RichardGreene-y1g]

Hans, your Electronic PD Checklist is spot on, and your videos are very informative. Thank you for sharing your knowledge and experience!

[@HansRosenberg74]

Many thanks!

[@TesGoer]

Excellent video that combines theory and practice, thanks a lot! As a student, I've been told many times by many different people that the integrity of the ground plane is very important when designing high-frequency circuits, but I never really understood it from a theoretical aspect (because I thought it's something that is really hard to analyze without the help of computer simulation). This video gives me the courage and shows me the correct route to actually analyze such problems quantitatively. Many thanks! "Send me the Checklist"

[@HansRosenberg74]

Thanks! You know the thing is: it's not hard at all, it's just that almost noone understands it fundamentally so they cannot explain it correctly. This happens to be one of my all time favourite subjects :-) so I can show how easy it really is. In the next video I'll show some examples of where it get's a little harder to quantify what is best on a 2 layer, but I also have a solution for those 2 layers.

[@Slibemaskine]

What a great video! Through my work in Magnetic Resonance hardware development, I encounter RF circuitry quite often. Now I finally know why those PCBs have these rows of vias following a transmission line on a PCB :D

[@HansRosenberg74]

Glad it was helpful!

[@danielrioux54]

Excellent video. The lenght and the depth of your presentation perfect. I would have one recommendation, please provide link in your description on the various tools that you are using like te micro strip loss calculations. Please continue your nice work.

[@HansRosenberg74]

Thanks a lot. I'm nervous to put links to third parties with respect to copyright issues. Even putting that thing in my video feels scary. The legal rules there seem to be a mess for an engineer like me. However, I always just google 'microstrip calculator' and you get a whole list of em :-)

[@PrinceWesterburg]

This is not just a radio freq thing, I build valve amps for hifi and guitar. For decades I’ve seen people cover the insides of guitars and amps with foil tape which is ungrounded and it picks up so much noise, so then they paint everything with graphite paint and remove all the top and bottom end of the freq range! Then they install active pickups [facepalm] I apply the same practices as you and have gorgeous sounding guitars and hifi :o) And for anyone reading this, I have decades of experience but still watch videos like and read books this as a refresher, its good practice.

[@HansRosenberg74]

Indeed, I know, I'm also a long time audio builder (30 years). My experience is that a single groundplane greatly improves sound. Don't even separate left and right grounds, the current will not run in the circuitry from the other channels since that is the long way around which return current will never take. So you're totally safe to do that. Also never separate digital and analog grounds in a DAC, you'll run common mode interference current right through your da converter chip which is not good either. They have separate analog and digital ground pins, but on the actual die, they are connected.

[@michaelrcolton]

I'd like the checklist too, please. I was really surprised how well the solder blob and complete ground plane plots lined up! Great video, thank you!

[@HansRosenberg74]

Yeah, that blew me away as well, the blob can be even smaller apparently! You can get it here www.hans-rosenberg.com/checklist BR, Hans

[@amaldev000]

Dear Hans, Nice video. You did a great job of backing up the theory with actual measurements with a VNA. As an electronic consultant myself I can't count the number of times I was able to fix client issues simply by having a clean, unbroken ground plane. You have awesome skills in explaining things nicely. Good Luck with your new channel! I am sure it will be a great one going ahead in practical electronics.

[@HansRosenberg74]

Hi, thanks a lot for your very positive reply :-) This was my first video and the plan is to do this at least for 1 year and share everything I've learned about electronics since I was 8 years old (that's when I started, that was 42 years ago). This will probably take more than a year ;-)

[@HansRosenberg74]

Coming back to your remark that you solved a lot of issues fixing a ground plane: It's really amazing how underestimated / misunderstood the importance of ground planes is, that's why I wanted to start with this one. Even good electronics engineers often underestimate this one.

[@MukundanP]

Thank you for the very clear explanation of the return path, how an obstruction affects it, and the impedance graph illustrations. And please send me the checklist.

[@HansRosenberg74]

I cannot say no to please :-D You can get it here: www.hans-rosenberg.com/checklist Best regards, Hans

[@hitchjay]

Send me the Checklist Thank you for the excellent, simple, and straight forward explanation

[@HansRosenberg74]

Hi, the link is in the description. Sorry for the late reply, I was on the road for 2 days. Best regard, Hans

[@wezelball]

Thank you for making this easy to understand with concise and practical explanation. Please send me the checklist.

[@HansRosenberg74]

Hi, the link is in the description. Sorry for the late reply, I was on the road for 2 days. Best regard, Hans

[@phillipdevillephysics9096]

Hello sir, great teaching in your videos. You are clearly knowledge and explain things with just the right amount of information, with good organization, and at a good pace. How does one get a copy of your book? Also, I have been using LTSpice for three years, designing models and sub-circuit files for projects at home. Is there another software with a reasonable price point for this kind of circuit simulation that may be more convenient or polished than LTSpice?

[@HansRosenberg74]

Thanks. Link is in the description. I suse simetrix, it is professional but the test version allows you to do quite a lot!

[@phillipdeville6315]

@@HansRosenberg74 Thank you!

[@dBm_drillingbits]

Hello, nice video regarding common sense PCB design rules. How can I get a copy of the book. Thank you.

[@HansRosenberg74]

Thanks, link is in the description! And thanks!

[@DocJoseph99]

Very helpful video series Hans! Please send me your checklist.

[@HansRosenberg74]

Thanks a lot, links are in the description (working on my domain, so check out both, one of them will certainly work), best regards, Hans

[@croustibat682]

I have been working on analog and digital radios for years now, more on the software side, but still touching on hardware a bit. I feel like I learned more in 15 mins on HW design than in 10 years of work. You are amazing. Thanks for the checklist too ! edit: i cant get the checklist, my address is refused. Your regex is probably refusing the '-' character in it. It would be great if you could fix this.

[@HansRosenberg74]

Hi, wow, thanks for the compliments :-) I just tried to download it, that works with my address. About the regex, I'm not sure, the page is made and handled by the Kajabi platform so I cannot control that. Can you try again? Otherwise, please send me an email [e-mail] with the remark that you would like to have the checklist. Best regards, Hans

[@RSquareNL]

Hello Hans, you placed some interesting videos. As a fellow electronics designer it is always good to learn new or already, some times forgotten, rules. Looking forward to read and use your checklist. Please send me the checklist.

[@HansRosenberg74]

Thanks a lot, this is great to hear from a 'colleague' :-) Here it is: www.hans-rosenberg.com/checklist Best regards, Hans

[@binaryspace6444]

Wow, really good information, thank you for putting this series on KZbin! I’d love to look over your checklist and add the items I’m missing! Please send it over!

[@HansRosenberg74]

You're welcome. You can get it here: www.hans-rosenberg.com/checklist Best regards, Hans

[@DocAlex-cx9ot]

Thank you for that video. Very informative. You said „by placing the solder blob just under the transmission line you proved that the return current flows directly only under the line“. Strictly speaking that is not proven here, since there are other explanations that might explain the measured result. E.g. if you see the obstruction as an antenna which you have tapped in the middle with the solder blob, this would explain the result too. What might be interesting to further prove your statement would be to move the solder blob up or down in steps and compare the results. Again: really well done! Thanks! ☺

[@HansRosenberg74]

Great idea indeed, I thought about moving the blob as well or asymetrically, to prove it will take the shortest route in that case. Maybe I'll make a short video on this. Or maybe I make a 'viewer reqeust' video in this playlist, I've had some other interesting remarks as well which I could easily address with a measurement.

[@stephengray9207]

Hi Hans, please send me the checklist. Well done on making the issues clear and easily understandable. Ive been a tech for 40+ years and found it valuable.

[@HansRosenberg74]

Thanks a lot! You can get the checklist here: www.hans-rosenberg.com/checklist Best regards, Hans

[@HeatherBarron]

Very instructive! I would like this checklist please.

[@HansRosenberg74]

thanks. Link is in the description. Best regards, Hans

[@meyou118]

finally a channel about RF PCB layout!! - tyvm

[@HansRosenberg74]

haha, you're welcome :-)

[@victornpb]

I undertand capacitance but i dont understand impedance. Doesnt the return current follow under the signal trace because charges are attracted and because of the slight imbalance of charges under that trace, like capacitively coupled?

[@HansRosenberg74]

Impedance basically the complex variant of resistance. So an impedance has a real and imaginary part. The real part is resistive, the imaginary part is either inductive or capacitive. The path directly under the trace has the lowest overall impedance, that is why the current flows there. Field lines are definately present between the signal trace and the ground plane, but it is more a result of the lowest impedance path I think. Now however we're getting into really fundamental physics and I'm unfortunately not a expert at that. I understand what happens on a board due to my long experience, but I lack the deep knowledge of physics.

[@demotulation]

You are first that I find talking about this subject .You also really know how to use nanoVNA and TinySA .An analytical video about those tools would be useful . Also a practical example for, maybe, an attenuator 10-20-40 dB on a 2 layer PCB would also be interesting. There are available on ebay , but are they really good ???

[@HansRosenberg74]

I've added your ideas to the list!

[@alexanderbalyabo5074]

Nice experimental part connects the dots with a theory, well done.

[@HansRosenberg74]

thanks!

[@GaryPepper-oe7wn]

A great series of videos! I would appreciate receiving your checklist. Thank you!

[@HansRosenberg74]

thanks, You can get it here: www.hans-rosenberg.com/checklist Best regards, Hans

[@RichardSchulting]

Don't need the checklist, created one myself in the last 30 years of so, lol... Being a HAM operator building RF amplifiers myself for VHF, UHF an SHF (DATV) I can only agree with your findings. What did struck me some time ago is how RF energy is moving through the copperlines on the PCB, well it's NOT, it's moving through the PCB between the striplines and groundplane and vice versa through the diëlectricum! Nice video Hans, best regards Richard (PA1RAM).

[@RichardSchulting]

By the way, forget to mention. The last example you gave, it's called a Wave Guide, actually a Coplanar Wave Guide, am using it all time these days in my RF amplifiers. And yes there are some good calculators available on the net.

[@HansRosenberg74]

Indeed, I know the name. Forgot to mention it. I'm going to make a video on characteristic lines at some point. Good to hear your experience matches mine.

[@m_riatik]

this is such a clear explanation of the importance of ground planes. focusing on the current path in your explanations really helped my understanding. i know you just started uploading on youtube but you deserve a lot more attention :) also, send me the checklist

[@HansRosenberg74]

Thanks a lot for the encouragement, you can download the checklist here: www.hans-rosenberg.com/checklist Best regards, Hans

[@petepeterson5337]

8:27 Not important, but to my eye the dielectric constant between the two lateral traces is closer to 2 than to 1 due to the presence of the FR4 that is between them for ~half the E field volume. Great video!

[@HansRosenberg74]

Thank you, You're correct, I was thinking about this when I recorded the video, I didn't want to go that deep and maybe cause a bit of confusion.

[@74HC04]

Thank you very much indeed, Hans

[@HansRosenberg74]

You are very welcome

[@frankpinto5882]

Great topics. Great Videos. Keep them coming. Please send a checklist. Thank You.

[@HansRosenberg74]

You're welcome. link is in the description. BR Hans

[@WhatsHotThisWeek]

Thank you for sharing such an informative video! I found it incredibly helpful and would greatly appreciate it if you could provide a copy of the checklist. Thanks again!

[@HansRosenberg74]

Thanks! Link is in the description. Best regards, Hans

[@IvanMasloff]

Hello Hans! Thanks for this video. I think it would be interesting to know about exceptions to the rules. For example, are there any conditions under which you should not apply a full ground plane?

[@HansRosenberg74]

Great suggestion. There are some extremely sensitive chips like high speed amplifiers which are 'allergic' to capacitance. You have to open the ground under their pads. I'll add this to my video list :-)

[@TheWarhoop]

Subscribed. Easy. This was really good. If you explained the principles in your book half as good as you did in the video then I'm assuming the book would be twice as long. Which I think will make me a quarter inch shorter somehow, but I"ll risk it if you have any books left. I would greatly appreciate a book please. Thanks for these videos.

[@HansRosenberg74]

Thanks a lot. Link is in the description. Best regards, Hans

[@davidgustafik7968]

First of all, thanks for the great examples and real measurements - a really tangible way to show the point. Second, please send me the checklist :)

[@HansRosenberg74]

Thanks for the encouragement! Theory is very nice but I truly believe something when I see it for real :-) You can download it here: www.hans-rosenberg.com/checklist Best regards, Hans

[@glasslinger]

REALLY struggling with how to use the newest Analog Devices microwave I.C.s that are about 2/10 inch square with 8 connections on each side! Are these totally out of reach of the home experimenter or is there some kind of scheme that can let us use them? Even after getting a board made it seems to be impossible to correctly align and solder the I.C. to the board!

[@HansRosenberg74]

I did this many times, I think you're talking about a VQFN package? The only way to get this done is with a stencil to apply solderpaste (the luxury option) or apply paste manually to the pads. Make sure you don't put too much on the central pad (which it probably has) otherwise it will start to float. To make alignment easier, I always put 4 lines on the silkscreen, at 45 degree angles. The ic corners need to be on these lines. Furthermore it helps greatly to add this very thick rework flux, that makes the solderpaste really liquid. Than you carefully heat it with an smd hot air blower. The paste will melt, the ic will float on that paste and because of that it will auto-align. It takes a bit of practice and a microscope is really helpful because you can see everything better. Good luck! (I will make a video on this in the future, but I have soo much material to show, it might be a while)

[@HansRosenberg74]

there is a third way: Apply solder with a normal soldering iron to the pads (not too much again), use rework paste on the footprint, put the ic on and then slowly heat it up untill it start floating. That thick rework paste is a lifesaver doing this work, makes it sooooo much easier.

[@AbyssalArray]

Very enlightening video as an electronics student, that book seems to be a very nice to have. Please send me the checklist.

[@HansRosenberg74]

Thanks. Link is in the description. Best regards, Hans

[@YDKMPablo]

Hello Hans, Checking out many of your videos, you always tell us to use a continuous ground plane. But what about mixed circuits like analog audio high frequency transmitter circuits? There you have analog audio -> ADC -> RF fronted. How do you avoid digital clock and RF noise (sub-harmonics) to get inside the audio path without separating the ground planes?

[@HansRosenberg74]

Great question. This is why I'm making my next video. This is a question that comes up a lot and I've seen many designers choose for separate ground planes and see their designs fail. I hope I can explain it clearly in the next one. I just posted my 5th video, and the car kit example shows you 1 case of how multiple ground planes can fail. Maybe that already clears something up for you. Link for part 5 should be in the description. Best regards, Hans

[@YDKMPablo]

@@HansRosenberg74 thanks a lot for your reply. Indeed I watched the car circuit example and how separating ground planes you may cause more inductance in the current return path. I'll be waiting for your new videos. Best regards, Pablo.

[@olivius007]

Fantastic video, will definitely check out the other parts!

[@HansRosenberg74]

thanks!

[@RobertDhaene]

Hello, please send me the checklist :). I enjoy electronics design as a hobby and am constantly trying to learn and improve. Thank you for the great videos!

[@HansRosenberg74]

Thanks a lot! Link is in the description. Best Regards, Hans

[@merdogan-ee-engineer]

I really appreciate the work you put. I would live to have a copy of the book. Please send me the checklist.

[@HansRosenberg74]

Thanks. Link is in the description. Best regards, Hans

[@aas2203]

An extremely concise and informative video, thank you so much. Would you please send me a checklist.

[@HansRosenberg74]

Thanks a lot :-) Link is in the description. Best regards, Hans

[@katiagalkina4607]

nice tut! I was struggling with ground problems many years ago in audio amplifiers. I wasn't quite sure that signal ground and power ground position on the pcb was important...

[@HansRosenberg74]

Thanks, I may not have been clear enough, you should always only have a single ground plane. You can have planes on more layers, but the one that will carry the current will be the one closest to the signal layer and that one should not have obstructions. Making 2 ground planes is a bad idea. 2 video's from now I'll go into that with details why that is. I always used to make multiple ground planes in my audio dacs (I designed 6 over period of 30 years) but ever since I switched to single ground planes the audio improved quite a lot. Best regards, Hans

[@katiagalkina4607]

@@HansRosenberg74 Thanks a lot Hans. I was being unclear in previous comment, my point was the placement of audio signal ground and power supply ground (the point on the pcb which each of those would be soldered) there was one ground of course, but signal ground from the pre-amp stage and power amplifier stage (i.e a TDA2030 chip) was a quite challenging task, and leading to all kinds of noise. I can't recall correctly if it was better to keep those close or farther apart on the ground plane. tysm for your attention btw! +1sub!

[@tonypcoyle]

I'm getting flashbacks to my EE classes in the late 70s! (Good flashbacks!)

[@HansRosenberg74]

haha, thanks

[@edwilliams9914]

Amazingly clear explanation of a subject with much "mystery and handwaving" around it. Please send me the checklist! And you have a new subscriber who will watch all your vids!

[@HansRosenberg74]

Thanks a lot. My experience is that even experienced electronics engineers still think this is some sort of 'black magic', but it's really very simple if you understand the fundamentals :-). It's just that not many people understand the basics of it. Link is in the description. Best regards, Hans

[@chrisviviers5649]

You're a smart guy, Hans. Well presented. Please send me a copy of the checklist.

[@HansRosenberg74]

Always great for my ego to hear that someone thinks I'm smart :-) I cannot say no to please :-D You can get it here: www.hans-rosenberg.com/checklist Best regards, Hans

[@jaimerodriguez9141]

Thank you for the videos and the Checklist.

[@HansRosenberg74]

Glad you like them!

[@SilencedShotgun]

Thank you, this was very helpful. I would love the checklist if there are more copies

[@HansRosenberg74]

Link is in the description

[@xxmrrickxx]

Very interesting demonstration!

[@HansRosenberg74]

Thank you!

[@gregorykinney8504]

Answered a lot of questions. I would love a copy of the checklist.

[@HansRosenberg74]

Great, always happy to find out I'm not causing more questions :-D You can get it here: www.hans-rosenberg.com/checklist Best regards, Hans

[@CodeJeffo]

Please send me the checklist! I am really looking forward. Please keep the videos coming. I am learning a lot. Thank you

[@HansRosenberg74]

You're welcome, I plan to do this for 1 year and then see if this is a way of living or not :-) You can get it here: www.hans-rosenberg.com/checklist BR, Hans

[@mgkeeley]

Nice video; concise and great info! I can see this stuff is super important for RF work, but what about lower frequency work, e.g. microcontrollers running at 8-40MHz? How particular do you need to be? What scenarios still cause issues?

[@HansRosenberg74]

Hi Mgkeeley, thanks for teh positive remark (this is my first YT video :-) ). About your question: It all depends on what you want to do with that design. If a clock and IO runs at 40MHz, you're generating a lot of harmonics as well, probably at least up to the 9th to get a nice square-wave. So that means you're interfering up to 360MHz. If it's just a hobby project: Not really a problem. If it becomes a product, then there are quite strict rules for intereference and you might by resposible for problems that occur. If you have an analog channel somewhere on your board, you may interfere with that. Sometimes, regulators can go unstable if their ground is not good enough. So I always try to put as much ground as I can on a single layer and use the others for traces. In the end, it is also a price thing, if you spend more on a 4 layer pcb, you can very easily make a perfect ground since you have 4 layers to route traces on.

[@mgkeeley]

@@HansRosenberg74 Right, I forgot that square waves will have higher harmonics than the base clock frequency!

[@deniskdenisk1985]

Curious how do you prefer to make PCB prototypes like the ones you shown here. Do you use a service for this, or do you make them yourself? If so, which method do you use?

[@HansRosenberg74]

I use PCBWAY at the moment. They are really affordable.

[@PolarisLP]

Send me the checklist. As a professional, I am really grateful for your work.

[@HansRosenberg74]

Thanks! You can get it here: www.hans-rosenberg.com/checklist BR, Hans

[@zozopepe]

Thank you for making these videos! Please send me the check list

[@HansRosenberg74]

You're welcome, links are in the description (working on my domain, so check out both, one of them will certainly work), best regards, Hans

[@MrNoobed]

Thank you so much for the checklist! If only we could get an anthology from you, curious marc, and Mr. Carlson!

[@HansRosenberg74]

Thank you, Ok, those are some big names you're dropping, would be great if I can join them :-)

[@montvydasklumbys7584]

Really enjoyed the video, especially the practical aspect of it, Pls send me a checklist :)

[@HansRosenberg74]

Thanks. Please really helps ;-) Link is in the description. Best Regards, Hans

[@robertbauer6723]

Send me the checklist, please. Thank you for making this video. Your explanation and tips/rules of thumb are very helpful.

[@HansRosenberg74]

You're welcome! You can download it here: www.hans-rosenberg.com/checklist Best regards, Hans

[@gabrijelpeternel7043]

Hello! Can you make video about sharp edges on pcb trases. What are risks about them and how they effect circuit. Thank you.

[@HansRosenberg74]

Great suggestion!

[@jakedillingham]

Thank you Hans, that was great - nice and visual and clear!

[@HansRosenberg74]

Thanks!

[@siobhanpeal38]

Please send me the checklist. A really excellent description and demonstration. Thank you!

[@HansRosenberg74]

Thanks a lot. Here it is: www.hans-rosenberg.com/checklist Best regards, Hans

[@deanneumann8594]

Thank you Hans. I would very much appreciate a copy of the checklist. Thank you.

[@HansRosenberg74]

You can find the link in the description. Best regards, Hans

[@ulwur]

Wery imteresting and clearly presented. Good job! And please send me the list!

[@HansRosenberg74]

Thanks a lot, links are in the description (working on my domain, so check out both, one of them will certainly work), best regards, Hans

[@ValeryDjondo]

🎉 suscribed I'm glad to meet such a level of exactfullness in a radio field

[@HansRosenberg74]

Thanks a lot, links are in the description (working on my domain, so check out both, one of them will certainly work), best regards, Hans

[@kurthillig9482]

I mostly do audio-frequency work now that I've retired, but I used to do microwave spectroscopy and I like keeping up with the advances in technology; as please send me the checklist too!

[@HansRosenberg74]

Nice to hear, I've been building audio circuits for 30 years. Link is in the description, best regards, Hans

[@kyrresletsje3048]

Hi, I would love a copy of the checklist. The video was really interesting. Things I probably knew at some level, but never looked at in a systematic way.

[@HansRosenberg74]

Link is in the description. I'm also making a paid course based on this document. www.hans-rosenberg.com/product_development_course . Best regards, Hans

[@jakedillingham]

I was having a little think about your video last night. My question is having a ground plane in a circuit as you described. Having a ground plane wider than it needs to be would be expense and not necessary. So, could you go down the road of calculating the size of the max current field to determine the size/width of your ground plane to save on cost?

[@HansRosenberg74]

Actually, having more ground plane does not cost more. Boards start out with full copper planes and are then etched. So there is no extra cost involved. Actually, it is cheaper to have more copper on your board since the manufacturer would need less etching fluid (or it would last longer). Best regards, Hans

[@MrLeoGzyl]

Great video! Very helpful. Liked & subscribed😊. I'm interested in that checklist!!!

[@HansRosenberg74]

Thanks a lot! Link is in the description. Best regards, Hans

[@nwputra]

Dear Hans, I have question. On 10:52 -> The signal is flowing under the trace. So, what happened if we have an arc as signal path and a ground plane on the other side. Will the signal make a curve or will it choose the direct shortest path ? Thanks, your explanation on KZbin is priceless

[@HansRosenberg74]

wow, thanks for the enthusiasm :-) Indeed, it will simply follow the arc in the groundplane under it. If it would take the 'short' route, it would create a bigger loop if you look at it 3 dimensionally. So that is not the lowest impedance.

[@nwputra]

Thanks again. Clear explanation .. We should look at it 3 dimensionally. Cheers from Jakarta

[@seaotter8325]

Thanks Hans. Nice clear explanation and your graphics are fun but not excessive. It might be fun to work the other way. Say you have a signal path and you purposely want to create a band cut. How would you design the layout to accomplish this? Also, I've seen some wild PCB antenna layouts. Could you analyze a few of those so we could study the design rationale?

[@HansRosenberg74]

Hi, thanks for the ideas: these are already on my list :-)

[@sieberjiri]

+1 on that.

[@talkinghat88]

Fantastic video. Watching your videos reminds me of my student days. Thank you. Could I please have the checklist?

[@HansRosenberg74]

thanks! Link is in the description!

[@victorsole3360]

Hi Hans, very nice video! Many of us have learned the hard way what happens when the ground is badly designed in a PCB. Please send me the checklist. Thank you!

[@HansRosenberg74]

Thanks! You can get it here: www.hans-rosenberg.com/checklist Best regards, Hans

[@johnrobertson2749]

Send me your checklist please. Your video explains the ground plane issues very well. Thanks!

[@HansRosenberg74]

Link is in the description! Best regards, Hans.

[@whenyoudiporeosinmilktheyb8329]

Bedankt Hans 🫶🏼

[@HansRosenberg74]

graag gedaan :-)

[@JohannesLauesen]

Hi, great video. would you also consider making videos about simple designs of varius small circuits? like small buck boost or opamp circuits etc.

[@HansRosenberg74]

I'm thinking about that, first project would maybe be an RF gain block board: Very simple, but very useful

[@antonpower391]

Thank you for this amazing video. Send me the checklist🙏🏻

[@HansRosenberg74]

You're welcome. Link is in the description. BR Hans

[@KristianDjukic]

Thank Hans, very good job, indeed

[@HansRosenberg74]

you're welcome

[@navaneethm399]

First of all, thumbs up for the very crisp and clear video. It would be much appreciated if you could send me the checklist. Thanks.

[@HansRosenberg74]

thanks a lot. The link is in the description. Best regards, Hans

[@hwansupark8955]

Thanks for this great video. Can you please send me the checklist that you talked about at the end of the video?

[@HansRosenberg74]

you're welcome, link is in the description

[@J.D-g8.1]

Floating planes. I have thought about this, whether I could use copper strips to make a "faraday cage" either partly or fully around or between signal traces to shield them from either emitting or receiving noise. And whether i must connect these to ground. It seems as if i dont connect them to ground it will just make things worse by capacitive coupling? I am just an amateur so these videos are indeed very helpful.

[@HansRosenberg74]

if you make a cage: fully ground it! only then will it block high frequencies as well, in my next video I'll show a simple formula how many vias you need per unit of distance.

[@pankajjoshi1209]

Great video and invaluable information.. Please keep sharing your experiences.. Please send the checklist if possible.. Thanks

[@HansRosenberg74]

It's possible :-) You can get the checklist here: www.hans-rosenberg.com/checklist Best regards, Hans

[@fredflickinger643]

Thank you for these practical rules for the mysterious world of RF! Send met the checklist

[@HansRosenberg74]

Link is in the description. Best regard, Hans

[@ChristopherBarnes-t4c]

please send me the checklist. Great video - perfect mix of theory and practical with excellent examples.

[@HansRosenberg74]

Thanks a lot. Link is in the description. Best regards, Hans

[@gfcwfzkm]

Send me the checklist I'm an EE student and I'm very thankful for such videos like these as well as for the checklist. Thank you!

[@HansRosenberg74]

You're welcome. Link is in the description. Best regards, Hans

[@twostickes]

ESD is an interesting subject, which is a single strike event of 0.8ns duration (>1GHz) and very high voltage which causes interference and damage to circuits. Its not always possible to place ESD protection extrememely close to connector pins, so tracking needs to have uninterrupted ground planes like you mention. It would be interesting to see if there are things to avoid, or better schemes, to defend against these events!

[@HansRosenberg74]

It's already on my list, I used to be doing a lot with ESD prevention and I still have all my own manuals :-)

[@puddingpimp]

At the end of the video, hammering ground vias to box in the TL is the only practical approach unless it's a specialised part or test fixture, because we can't afford to lose an inch perimeter around every RF path, we need that board space.

[@HansRosenberg74]

that should work well, it's on the list for the next board already

[@apdewis]

Please send me the checklist, also I'm assuming all of this is just as applicable to high frequency digital signals? I see the same sorts of recommendations for unobstructed ground plane in high performance digital applications. i.e with FGPA layouts and so forth.

[@HansRosenberg74]

Yes! Digital signals are almost always RF due to the high rise/fall times. Link is in the description. Best Regards, Hans