News & Updates
Blog
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How to Get 3-port S-parameters From a 2-port VNA Measurement
S-parameters are fundamental quantities in signal integrity, and an ability to understand them from measurement or analysis is very important. If you have a 3-port network, like a power divider or circulator, it may appear that you must use a 3-port VNA to measure these S-parameters. It is always acceptable to measure between two ports, but you need to know what exactly it is you are measuring. In this article, we’ll look at the relationship between the true 3-port S-parameters with a 2-port measurement.
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A Day in the Life of the PCB Manufacturing Process
Before implementing design for manufacturing, it is important to understand the underlying process behind producing a physical PCB. Regardless of the various technologies present in each facility, a large majority of industry-leading manufacturers follow a specific set of steps to turn your design from a drawing in a CAD application into a physical board. In this article, we'll cover the basics that designers need to know as part of our crash course series on PCB manufacturing.
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Addressing Skew Sources in High Speed PCBs
If you compile a list of skew sources, you'll see that fiber weave-induced skew is only one entry on a long list of skew sources. We'll look at this list of possible skew sources below, and we'll see how they affect the operation of your PCB. From the list below, we'll see that some of these issues with skew are not simply solved by paying attention to the fiber weave construction in a PCB substrate.
On-Demand Webinar
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Advanced Topics in High-Speed Design
This track is for the engineer who understands high-speed design requirements and wants to learn design practices to help ensure signal integrity and EMC with fast digital protocols, mixed-signal boards, and high layer counts.
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Should Ground Be Placed Below Inductors in Switching Regulators?
We love answering questions from our readers and YouTube viewers, and one of the recent questions we received relates to EMI from switching elements in a switching regulator is "Should a cutout be placed below the inductor in a switching regulator circuit?". Despite the variations in inductors and their magnetic behavior, there are some general principles that can be used to judge the effects of placing ground near inductors in switching regulator circuits. We’ll look at some of these principles in this article
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Altium Designer 22.6 Update
We are happy to announce that the Altium Designer 22.6 update is now available. Altium Designer 22.6 continues to focus on improving the user experience, as well as performance and stability of the software, based on feedback from our users. Check out the key new features in the What's New section on the left side of this window!
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Join PCB Design Review Competition from Altium
Find 9 mistakes in a PCB design and get added into the lucky draw to win a prize from Altium!
On-Demand Webinar
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What’s New in Altium 365
Now you can assess your library’s health at a glance with the Library Health dashboard, view and share your bill of materials (BOM) and view and download PDF documents, all in your web browser. We improved the existing diff and compare features, and released a new version of MCAD CoDesigner. Register for the webinar to learn more!
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SAP (Semi-Additive PCB Process) – Top 5 Questions Regarding Stack Up
This Semi-Additive Process is an additional tool in the PCB fabricators' toolbox that enables them to provide feature sizes for trace width and spacing that are 25 microns, (1 mil) and below depending on the fabricators' imaging equipment. This provides much more flexibility to breakout out tight BGA areas and the ability to shrink overall circuit size and/ or reduce the number of circuit layers in the design. As the PCB design community embraces the benefits of this new printed circuit board fabrication technique, there are of course many questions to be answered.
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Improving Supply Chain Success with BOM Management
It’s no secret that component shortages have become more frequent this year. In fact, countries around the world are losing billions in revenue due to supply issues. Having the right components on hand is more crucial than ever as availability, obsolescence, counterfeit products and environmental non-compliance risks continue to grow. Fortunately, many shortages can be avoided by introducing proactive supply chain practices.
On-Demand Webinar
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Rapidly Creating New Designs And Reusing Existing Ones
It's no secret that software developers often use completed code fragments from other projects for quick and predictable results. The same can be done for PCB Design, there is no need to spend time rewiring schematics or laying out components on boards you’ve done before. Join us this webinar where we’ll go over how you can use your existing designs to create reusable design blocks, speeding up the design cycle for your future projects.
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What is the Impedance of Length-Tuning Structures?
Do length-tuning structures create an impedance discontinuity? The answer is an unequivocal “yes”, but it might not matter in your design depending on several factors. Applying a length-tuning structure is equivalent to changing the distance between the traces while meandering. Therefore, you will have a change in the odd-mode impedance of a single trace. The question then becomes: does this deviation in trace impedance in a length tuning structure matter?
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Crosstalk Reduction and Elimination Techniques in Altium Designer
Whether you're designing a digital board with a ton of traces, or an RF board operating at very high frequencies, any electronic device with propagating signals will experience crosstalk. Learn more about some sure-fire ways you can reduce crosstalk in your high-speed designs.
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Baxandall Volume Control for Audio
The Baxandall volume control is an especially useful, flexible, and simple-to-implement circuit for numerous audio designs. In this article, we will demonstrate how to design this type of equipment.
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Common Flex Design Mistakes and How to Fix Them
Designing flexible circuits involves managing numerous factors. Discover how to prevent mistakes in this process and how to rectify them post-implementation.
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How Much PCB Mask Expansion is Too Much?
In this article you will learn about finding the right balance between PCB mask expansion and potential problems.
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RF Power Amplifier Module PCB Design
RF power amplifiers can be found in many wireless products, often integrated into chipsets or modems. However, in certain specialized systems, you might require higher power output at a specific frequency. This necessitates a discrete amplifier circuit to deliver that power. In this article, we present an example project for a power amplifier that you can incorporate into your RF project.
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Avoid GIGO in Your PCB Simulation Tools
Simulation tools are extremely useful for understanding electromagnetic behavior in a design. Learn more about how to avoid obtaining inaccurate results during your PCB simulation process.
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Choosing a Converter or Regulator For Your Power Supply Design
When designing the power supply for your device, there are lots of different options. In this article, we will take a brief tour of the main choices in DC power supply design.
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The Benefits of Ultra HDI
Learn more about the combination of using both flexible materials and ultra-HDI feature sizes in this article.
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Understanding Power Supply Current Handling Issues: Causes and Solutions
Troubleshooting power supply current handling issues is crucial to achieving optimal performance of your electronic devices. In this article, we will explore the common reasons why a power supply fails to handle the defined output current and provide practical solutions to solving these issues.
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Concept Phase – Cooling and Airflow Part 1
Next step in our open-source laptop project is to explain how to design cooling and airflow. In this article, we can show you the first part of this process, such as airflow concept, fan measurement and clearance.
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Create Connections with Harness Design
Many modern electronics have multiple boards, and connecting those different boards and systems together are harnesses. Learn more about how Altium Designer can help you create harnesses for your own multi-board designs here.
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Do You Know How to Prevent Voltage Fluctuation?
We invite you to explore the causes of output voltage fluctuation. In this article we provide you insights on how to solve and prevent these issues.
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How to Build Your Own Laser Range Finder
In this article we will show you how to create step by step a digital laser range finder for your own. Everything is based on Raspberry Pi board.
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Nucleo Shields Multi-Board Design
Learn how easy it is to create multi-board projects. This practical project article covers the reasons for breaking larger boards into sub-assemblies and explores the various connection options available between sub-assembly boards.
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Analog Solar Tracker Project
In this article you can learn about light sensors while building an analog solar panel tracking system. This open-source project covers multi-channel design, window comparators, driving motors, and photosensors.
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Concept Phase – Initial CAD Design
We are continuing our journey through the open-source laptop project. This article explains an initialization of CAD design process from the early concept and brainstorming phase.
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