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What is mode conversion
Blog •
A Guide to Mode Conversion, Its Causes, and Solutions

On interconnects, such as board-to-board connections or cascaded transmission line arrangements, you have an important EMC compliance metric that is sometimes overlooked. This is mode conversion, which can be visualized in an S-parameter measurement for differential and common-mode signal transmission. In this article, we’ll look at a short overview of mode conversion in high-speed design with some examples from common differential standards.

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RF PCB Design •
Design RF PCB: routing (any angle, arc)

It is worth taking a responsible approach to the shape and size of the RF signal conductors. In this video we will cover some practical aspects of working with routing such nets in Altium Designer.

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Working with MCAD CoDesigner extension •
Component Placement in Rigid-flex PCB

With the MCAD CoDesigner you can quickly add and move components from your MCAD tool and update the design automatically in Altium Designer. We’ll show you how to add a new component, move components, change a component’s region in MCAD, and update your design in Altium Designer.

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Pad and via sizing
Blog •
PCB Via Size and Pad Size Guidelines

There are some aspects of PCB design and layout that seem deceptively simple, and yet they have a complex answer that is related to many important aspects of manufacturing. One of these design aspects is the match between PCB via size and pad size. Obviously, these two points are related; all vias have a landing pad that supports the via and provides a place to route traces into a via pad. However, there are some important sizing guidelines to follow when the matching pad and via sizes, and this match is an important element of DFM and reliability.

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Differential Microstrip Impedance
Blog •
Differential Microstrip Impedance Calculator

Are you looking for a free tool that you can use to calculate the impedance of differential microstrips? We created a simple tool you can use to calculate differential microstrip impedance for a given geometry and dielectric constant. If you’ve been looking for an accurate differential microstrip impedance calculator, then the calculator below is certainly one of the best free tools you’ll find on the internet before you start using field solvers to determine differential pair impedance.

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Embedded thumbnail for Transmission lines (coplanar)
RF PCB Design •
Transmission lines (coplanar)

The boards use transmission lines to carry high-frequency signals. In addition to microstrip lines, coplanar transmission lines with a ground reference polygon are often found on boards. Coplanar transmission lines propagate the same wave type as microstrip transmission lines, but the electromagnetic field is more concentrated near the conductor, so coplanar lines have lower losses at high frequencies, less dispersion, and less interference to adjacent circuits.

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Working with MCAD CoDesigner extension •
How to Reuse Board Shapes in MCAD

You can use the MCAD Co-designer panel to reuse your board shape or geometry in your PCB. We’ll show you how to use the MCAD Co-designer panel in Altium Designer and how to copy your board shape and geometry from your MCAD tool to Altium Designer.

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PCB DFM Check
Blog •
Getting Through a PCB DFM Check

In this article, we’ll discuss the key design features to implement, and steps to take prior to fabrication that will help prevent some common DFM problems. I’ll also provide examples of where I commonly see these PCB DFM problems in signal integrity circuits.

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How to work with Selection •
Selection filter - Panel Properties and PCB

Learn how to configure the types of selected objects using the Selection Filter. In addition, you will learn about the Post Selection Filter and its features.

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Spreading Inductance
Blog •
What is Spreading Inductance?

If you’re working with a high-speed digital component, there are some simple power integrity rules that should be followed. However, there is one quantity that is sometimes ignored when building a PDN impedance simulation: the spreading inductance of your plane pair. Here are some points designers should know about the spreading inductance of a plane pair.

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Embedded thumbnail for PCB Origins During the ECAD MCAD Exchange
Working with MCAD CoDesigner extension •
PCB Origins During the ECAD MCAD Exchange

Origins can vary from your MCAD tool and Altium Designer. With the MCAD Co-Designer panel Altium Designer can keep track of your origin point and make sure your design changes are exchanged correctly.

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How to work with Selection •
Global Editing Using Find Similar Objects

Editing multiple objects one by one can be a very time consuming process. Altium Designer makes this easy and efficient with the Find Similar Objects tool, which allows you to globally select and edit multiple objects at once.

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PCB Design Basics for New Designers
Blog •
PCB Design Basics for New Designers

In this article, I’ll present some design basics that every new designer should follow to help ensure their design process is successful. Some of these points may challenge the conventional view of how circuit boards are constructed, but they are intended to help balance low noise signaling, manufacturability, and ease of solving a layout.

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Selecting Materials for High Voltage PCB Design and Layout
Blog •
Selecting Materials for High Voltage PCB Design and Layout

High voltage PCBs are subject to certain safety and reliability concerns that you won’t find in most other boards. If your fabrication house specializes in high voltage PCBs and keeps materials in stock, they can likely recommend a material set, as well as a standard stackup you might use for certain voltage ranges and frequencies. If you need to choose your own materials, follow the tips below to help you narrow down to the right material set.

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Embedded thumbnail for Shaping the PCB in MCAD
Working with MCAD CoDesigner extension •
Shaping the PCB in MCAD

Through the MCAD Co-designer in Altium Designer, you can collaborate with a mechanical engineer to shape the PCB in your MCAD tool and keep it updated in Altium Designer. We’ll show you how in Altium Designer and in your MCAD tool.

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How to work with Selection •
Cross Select Mode

Cross Select Mode is a unique tool that allows for cross-selection of objects between the schematic and PCB thanks to the Altium Unified platform. This makes it easy to look for specific components, as well as take advantage of component placement tools.

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Via tenting in PCB Layout
Blog •
When to Use Tented Vias in Your PCB Layout

There are some guidelines I see many designers implement as a standard practice, often without thinking about it. Some of these practices are misunderstood or implemented without best practices. Others are implemented without thinking about the potential problems. One of these is the use of tented vias, which is sometimes implemented in a PCB layout by default. Is this always the right practice?

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How to work with Selection •
Tools for Efficient Selection

Efficient selection tools can make a difference in how long and how clean your design can be. Learn how to utilize the Edit Select Menu tools in Altium Designer to take control over your layout.

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Capacitive load termination
Blog •
How to Impedance Match and Terminate Capacitive Loads

The idea of a purely capacitive load is something of a fallacy. Yes, capacitors exist, but all capacitors are non-ideal, and it is this deviation from a theoretical capacitance that determines how to impedance match a load that exhibits capacitive behavior. Let’s take a look at this important aspect of interconnect design and see what it really means to terminate a capacitive load.

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Embedded thumbnail for Tools for Easily Selecting Objects in the PCB
How to work with Selection •
Tools for Easily Selecting Objects in the PCB

Explore more than basic mouse movements by taking a look at the tools that Altium Designer has to offer for making selecting and moving objects in the PCB an easy task. This will increase your productivity and allow you to spend more time designing

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Blog •
Mastering EMI Control in PCB Design: How to Design PCBs for Low EMI

This article by Dario Fresu delves into effective techniques for designing PCBs to reduce electromagnetic interference (EMI). It covers key topics such as stackup selection, routing strategies, and grounding best practices, offering actionable insights for improved performance.

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Blog •
Happy Holidays!!!

Altium wishes you all the best this holiday season! May this time be filled with joy, laughter, and cherished moments with your family and friends. We also extend our warmest wishes for a Happy New Year 2025!

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Blog •
What Is Wire Harness Design?

Explore our latest article to learn the fundamentals of wire harness design, its key components, and how it ensures organized, efficient, and reliable electrical systems across automotive, aerospace, and medical sectors.

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Blog •
How to Determine Ferrite Bead Circuit Model Parameters

Learn how to accurately determine ferrite bead circuit model parameters for effective noise suppression in high-speed PCB designs. This article explores key concepts, measurement techniques, and practical tips for modeling ferrite beads in your projects.

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Blog •
AI Vision with the Kria KV260 Vision AI Starter Kit

Discover AI-driven vision capabilities with the Kria KV260 Vision AI Starter Kit, presented by Ari Mahpour. Ideal for prototyping vision solutions, this kit offers an accessible entry point into advanced AI applications.

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Blog •
Wire Bonding in Altium Designer

The Wire Bonding in Altium Designer article highlights how Altium Designer 25’s wire bonding feature streamlines complex designs for advanced assemblies like 3D stacked dies and RF modules. This tool enhances efficiency and precision, catering to modern electronic design needs.

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Blog •
Optimize PCB Design with Integrated BOM and CAD Systems

Discover how integrating BOM management and CAD systems can streamline your PCB design process in this insightful article. Learn how combining these tools enables smoother collaboration, reduces errors, and improves design efficiency, helping you optimize your workflows from concept to manufacturing.

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Blog •
The Essential Guide to Through-Hole Resistors

Resistors are fundamental components in electronic circuits, essential for controlling current and voltage. This article explores their basic principles, types, and key applications, helping you understand their crucial role in electronics.

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NEW
Embedded thumbnail for Just Released: Supplier Data Merging
New in Altium's Software •
Just Released: Supplier Data Merging

Discover how the Supplier Data Merging feature brings together supplier information from your custom parts database and the Altium Parts Provider into a single, unified view. Access consolidated supplier data wherever supplier part numbers appear, including in ActiveBOM and during component selection.

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NEW
Embedded thumbnail for How Altium’s Layer Stack Manager Actually Works
How-To's •
How Altium’s Layer Stack Manager Actually Works

Take a look inside Altium's Layer Stack Manager and discover how its impedance calculator determines the ideal trace width for your target impedance. In this video, we break down the "black box" behind the calculation and show how the Simbeor-based field solver provides accurate results while eliminating the need for advanced field solver expertise.

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Embedded thumbnail for Connect Requirements Directly to Your PCB Design
New in Altium's Software •
Connect Requirements Directly to Your PCB Design

See how the Requirements Portal integration in Altium Designer simplifies requirements management by bringing system requirements directly into your PCB design workflow. Connect requirements to design documents, assign tasks, track verification in real time, and keep your entire team aligned with seamless synchronization in Altium 365.

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Embedded thumbnail for SFP Connector Routing: High-Speed Differential Pair Design Tips
How-To's •
SFP Connector Routing: High-Speed Differential Pair Design Tips

Discover practical SFP and SFP+ routing tips in our latest video, inspired by a real question from the Altium subreddit. We cover how aggressive serpentine length tuning can be, how to reduce impedance discontinuities in tight meanders, and how meandering influences mode conversion at 10G and higher data rates.

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Embedded thumbnail for Handle High-Density PCB Layouts with Ease
New in Altium's Software •
Handle High-Density PCB Layouts with Ease

Push the limits of PCB design with support for up to 128 signal layers, empowering the development of even the most complex, high-density boards.

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Embedded thumbnail for Skip Layer Routing for RF: Control Impedance & Cut Insertion Loss
How-To's •
Skip Layer Routing for RF: Control Impedance & Cut Insertion Loss

Discover our latest video and learn how RF designers use a deeper ground plane to minimize skin-effect resistance, improve signal integrity over long high-frequency routes, and optimize impedance matching for oversized SMT pads in antenna launches and coaxial connectors.

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Embedded thumbnail for Just Released: ODB++ Intellectual Property Protection
New in Altium's Software •
Just Released: ODB++ Intellectual Property Protection

ODB++ Intellectual Property Protection lets you control exactly what design data is included in the ODB++ output, ensuring each manufacturing partner receives only the information needed for their specific fabrication or assembly tasks.

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How-To's •
Future of Electronics Development in Security and Aerospace

See the highlights from Altium's executive event in Hamburg, where Security and Aerospace leaders explored AI-driven development, digital engineering, supply chain resilience, and the future of mission-critical electronics.

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Embedded thumbnail for Create Clearance Rules Faster and with Less Effort
New in Altium's Software •
Create Clearance Rules Faster and with Less Effort

Setting up clearance rules is now more intuitive in the Constraint Manager. Choose the Simple view for faster configuration with grouped object types, or the Advanced view when you need detailed, matrix-based clearance control.

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Embedded thumbnail for Mastering HDI Design Rules in Altium Designer
How-To's •
Mastering HDI Design Rules in Altium Designer

In our latest Altium Academy tutorial, we guide you through configuring the essential HDI PCB design rules in Altium's software. You'll learn how to use your manufacturer's fabrication capabilities to create accurate design rules and constraints for your PCB.

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Embedded thumbnail for Search, Filter, and Navigate PCB Designs Faster
New in Altium's Software •
Search, Filter, and Navigate PCB Designs Faster

The Web Viewer now features a redesigned search experience for faster access to PCB design data across supported CAD formats. A lightweight, intuitive interface lets you begin with simple search terms and progressively refine results using contextual suggestions.

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Embedded thumbnail for Gain Better Control Over Wire Bond Visibility
New in Altium's Software •
Gain Better Control Over Wire Bond Visibility

New bond wire visibility controls give you greater flexibility when working with wire-bonded boards and footprints, making it easier to focus on the details that matter most.

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Embedded thumbnail for Coming Soon: Selectable Harness Source Within Multi-board Design
New in Altium's Software •
Coming Soon: Selectable Harness Source Within Multi-board Design

Selectable Harness Source Within Multi-board Design enables harness projects to drive system connectivity while maintaining bidirectional synchronization between multi-board schematics and harness wiring diagrams for improved accuracy and easier design management.

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Embedded thumbnail for Choose the Simbeor Version for Your PCB Calculations
New in Altium's Software •
Choose the Simbeor Version for Your PCB Calculations

The PCB Editor now lets you choose the Simbeor version used for delay and impedance calculations, giving you more flexibility and consistency across your design workflows.

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Embedded thumbnail for Improve PCB Editor Performance with Via Instancing
New in Altium's Software •
Improve PCB Editor Performance with Via Instancing

The PCB Editor now uses via instancing to generate geometry for each via individually, providing greater flexibility and a more advanced approach to managing vias in PCB designs.

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Embedded thumbnail for GSSG Stackup Deep Dive: Routing, Impedance, and HDI
How-To's •
GSSG Stackup Deep Dive: Routing, Impedance, and HDI

A ground-signal-signal-ground (GSSG) stackup rethinks the traditional four-layer PCB structure by moving the ground planes to the outer layers and routing signals on the two inner layers. In this Altium Academy deep dive, we review a real one-minute design review submission and demonstrate how to configure a GSSG stackup properly using the Layer Stack Manager.

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