Ajouter "Why these PCB shorts are 50 Ω"

Fun with PCBs and trace impedance Sign up for Live from the Lab to win gear and learn even more! ► https://www.keysight.com/us/en/events/keysight-world/live-from-the-lab.html Subscribe: https://www.youtube.com/KeysightLabs?sub_confirmation=1 Via stub resonance 3d Print file: https://www.printables.com/model/422549-pcb-via-and-traces-4-layer Live from the Lab is back and better than ever! Our bi-monthly live event series features tips and tricks and Q&A sessions with industry experts to take your engineering skills to the next level. Tune in to catch the latest tech trends and learn what you need to know to become an engineering legend. Join the conversation today: # KeysightLive In this video we explore RF engineering and circuit design basics by measuring the impedance of traces (transmission lines) using a VNA. We explore how changing the width of the trace impacts impedance. We also dig into via stub resonance and how to fix it with back drilling. 0:00 Why impedance matters for PCBs 1:51 S-Parameter measurements with a VNA 2:38 How PCB trace / transmission line width impacts impedance 5:16 How PCB stackup impacts transmission line / trace impedance 7:39 Getting a transmission line with 50 ohm impedance 10:41 Keysight World Live from the Lab! 11:54 Exploring via stub resonance and PCB backdrilling 13:36 How liquid nitrogen impacts PCB impedance 15:43 accidentally lighting a PCB on fire and watching the impedance change Shoutout to @samerps on Twitter for the incredible animations/simulations! March 14 - Debunking Circuit Design Myths How accurate is conventional PCB wisdom? What happens when we force designs into weird corner cases? For example, how does a 50 Ω controlled impedance path change when it's dipped in liquid nitrogen? Pouring Liquid Nitrogen onto a PCB We'll compare real-world board measurements to the simulation and dig into concepts every electrical engineer needs to know - things like return current paths, via stubs, VNA tips, and more. May 16 - Power for IoT Devices Experienced IoT device designers know that success hinges on optimizing power consumption and battery performance. They need to know how well their device works in real-world conditions. Proper testing is the only way to make sure a device will behave the way it's supposed to. During this hands-on session, we'll analyze device current drain, explore a battery's non-ideal characteristics (and why two "identical" batteries might behave differently), make essential DC-DC converter tests, and more. July 18 - Can You Build Your Own Quantum Computer? Peek inside modern quantum labs and see the engineering that makes this tech tick! If you have questions you want answered or topics you want us to cover for quantum computing, let us know on social with the hashtag #KeysightLive. September 12 - Demystifying 6G and RF Engineering Join us for expert sessions as we break down cutting-edge wireless communication technologies. Prizes: Over 20 pieces of pro-grade test gear including two 6 GHz, 8 channel Keysight MXR oscilloscopes. Look Busy by Kevin MacLeod is licensed under a Creative Commons Attribution 4.0 license. https://creativecommons.org/licenses/by/4.0/ Source: https://incompetech.com/music/royalty-free/index.html?isrc=USUAN1100172 Artist: https://incompetech.com/ Marty Gots a Plan by Kevin MacLeod is licensed under a Creative Commons Attribution 4.0 license. https://creativecommons.org/licenses/by/4.0/ Source: https://incompetech.com/music/royalty-free/index.html?isrc=USUAN1500015 Artist: https://incompetech.com/