Stretching the Limits of PCB Design

Expanding markets, such as automotive, IoT, wearables, and healthcare, continue to drive innovation in printed circuit board and interconnect design. While new materials and technologies are being stretched to their limits, some fascinating new design and manufacturing methods are offering completely new ways to create PCBs, eliminating some of the old trade offs and revealing […]

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Developing Wireless PCB Applications with EM Verification and an RF Design Flow

Today’s PCB designers face multiple challenges incorporating RF/microwave, analog, and digital design elements together on the same PCB. To successfully integrate RF/microwave content and mixed-signal designs, PCB layout tools and RF circuit design software must exchange design data efficiently. This workshop will address two aspects to successful RF PCB design, namely EM verification as well […]

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Exploring Power Dissipation Thermal Ratings for Fixed Attenuators

A number of thermal/power design challenges are found when PCB Designers evaluate the use of fixed attenuators. It is helpful to explore and understand relationships of applied power, dissipated power and the factors involved across multiple dB values of attenuators whether fixed in a component network or created using discrete individual resistors on a PCB. […]

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RF Millimeter-Wave PCB Design Considerations for High Speed Digital

As High Speed Digital (HSD) rates are increasing, there are more electrical performance properties related to RF technology which need to be considered by the HSD designer.   As a basic comparison, RF technology is focused on frequency domain and HSD technology is focused on time domain.  Some electrical performance concerns in frequency domain can impact […]

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Bridging the Gap to 112 Gbps PAM4 – The Benefits of TwinAx Cabling

As data rates scale to 112 Gbps and beyond, twin-axial cabling is becoming a vital part of system architecture and design. This session explores the numerous twin-ax construction options available and their signal integrity advantages and challenges.

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How to Characterize PCB Materials to 50 GHz

Characterizing PCB materials for Dk and Df of the dielectric materials, as well as the surface roughness can be challenging.  A typical build will often have core and pre-preg materials with Dks that can vary by 10-15%.   For low loss materials with Dfs less than 0.005, extraction of Df can be difficult.  Further, separating the […]

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High Performance Laminates for Multigigabit Applications

This short talk will look at the requirements of multigigabit signaling as related to the PCB materials available with which to fabricate these PCBs.  It will draw on the more than a dozen test PCBs fabricated for the purpose of evaluating these laminates.  Included will be some comparisons of laminates currently used to fabricate these […]

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Principles of Designing the Board Stackup for Electronics and Manufacturability

The designer MUST be involved in the decision making for a board stackup, as the fabricator only knows his own needs, not the needs of the signals. The stack affects the way the signals flow and so can affect many electronic aspects of the functioning circuit like layer count, field spread/interference, return current, impedance control, […]

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PC Board and Interconnect Design for Low EMI

As a consultant for over 10 years, I’ve realized the root cause of many design issues revolves around the circuit board design and how the I/O and power connectors are arranged and filtered. Poor board designs and poor interconnect placement and filtering can result in radiated emissions, radiated immunity, and electrostatic discharge (ESD) compliance failures, […]

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Demystifying PCB Transmission Line Interconnect Modeling for High-level Design

During the high-level design stages for new a project, board designers are often overwhelmed when trying to choose appropriate diff pair geometry, board material, and stackup to meet high-speed serial link loss budgets. Part of the printed circuit board (PCB) interconnect challenge is modeling transmission lines accurately. Although many EDA tools include the latest and […]

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