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| Name | RF and Microwave PCB Design - Part 5: Couplers |
| Video Uploader | Video From Altium Academy |
| Upload Date | This Video Uploaded At 15-06-2020 19:08:47 |
| Video Discription | In this RF and Microwave PCB Design Series episode, Ben Jordan walks through the essential design steps for microstrip couplers most commonly found on microwave PCBs: The 90-degree Hybrid, the Rat-Race, and the Backward (directional) coupler. References: Microwaves 101 pages on Branchline Couplers: https://www.microwaves101.com/encyclopedias/branchline-couplers Microwaves 101 pages on Coupled Line Couplers: https://www.microwaves101.com/encyclopedias/coupled-line-couplers Previous episode, “Part 4 - Power Dividers”: https://www.youtube.com/watch?v=FDXBor3SnZ0 Chapters: 00:00 Introduction to Hybrid Couplers. 08:16 Port 4 Isolation - how that works. 11:45 Applications of the 90-degree Hybrid. 16:28 Extending for broader bandwidth. 21:08 The Rat Race coupler. 28:18 Directional Coupler (Coupled-Line Coupler) Introduction 30:19 Coupling principles - Odd and Even mode impedance. 33:15 Directional Coupler Geometric Structure. 36:07 Directional Coupler Applications. 38:08 Example design walk-through at -6dB coupling. 50:30 Practical Limits of Coupler Dimensions on FR-4 51:24 Second example design at -12dB coupling. 59:19 Frequency Response of the Examples. You can calculate impedance and dimensions using various free tools, or use the Layer Stack Manager in Altium Designer: - QUCS (http://qucs.sf.net) - AppCAD (https://www.broadcom.com/appcad) - Saturn PCB Toolkit (http://saturnpcb.com/pcb_toolkit/) Learn more at https://my.altium.com/learning/getting-started Design PCBs with a Free Trial of Altium Designer Here: https://www.altium.com/yt/altium-academy/ Download CircuitMaker Here: https://www.altium.com/circuitmaker/download The Altium Academy is an online experience created to bring modern education to PCB Designers and Engineers all across the world. Here you can access a vast library of free training and educational content covering everything from basic design to advanced principles and step-by-step walkthroughs. Join industry legends as they share their career knowledge, review real-life design projects, or learn how to leverage one of Altium's leading design tools. No matter your level of experience, the Altium Academy can help you become a better Designer and Engineer! About Altium LLC Altium LLC (ASX:ALU), a global software company based in San Diego, California, is accelerating the pace of innovation through electronics. From individual inventors to multinational corporations, more PCB designers and engineers choose Altium software to design and realize electronics-based products. #Altium #PCBdesign |
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