ROG Blog

The Rog Blog is contributed by John Coonrod and various other experts from Rogers Corporation, providing technical advice and information about RF/microwave materials.
mmWave Matls

Selecting PCB Finishes for the Longest Lifetimes

Many types of protective finishes are available for the copper conductors on PCBs, and when making a choice, it helps to know the characteristics and relative costs of each when developing a PCB for the highest performance over the longest lifetime. Learn more in this blog posting.

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Changing Environments Impact Circuit Performance

Not all circuit materials are formulated or characterized for the different sets of environmental conditions required for these many different applications, and circuit materials for high frequency, high speed digital (HSD) circuits for challenging operating environments should be carefully considered. Learn about these effects in this article.

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Copper Quality Is Key to RF/HSD PCB Performance

While much has been covered in previous blogs about the dielectric material properties of PCBs, knowing more about copper can reveal how it impacts the performance of high frequency analog and high speed digital (HSD) PCBs. Not all PCB copper conductors are created equal.

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3D Printing

3D-Print Antennas with Printable Dielectric Resin

Creating electronic components and circuits with three-dimensional (3D) printers holds great promise for high-frequency-analog and high-speed-digital (HSD) devices. With the right printable electronic materials, 3D printing can form fine feature sizes needed for new levels of dielectric component performance. 

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Dk Testing is Vital to mmWave Circuit Design

Dielectric constant is an important starting point for many circuit designers, whether specifying a printed circuit board (PCB) material for a design or with a material in hand and using its Dk in computer circuit simulations. Especially at higher, mmWave frequencies where wavelengths are short and circuit dimensions must be precise, according to a substrate’s Dk, the accuracy of a circuit material’s Dk can impact the success of a prototype. Learn how to determine it accurately.

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Featured Image

Concerning PCBs and the Transition from Microwaves to Millimeter Waves

As readers learned in the first part of this two-part ROG blog,1 printed circuit boards (PCBs) can be made for millimeter-wave frequencies by considering circuit-material characteristics when making the transition upward from microwave to millimeter-wave circuits. This second part of the blog explores how different circuit technologies often used at microwave frequencies and different circuit materials handle higher-frequency, millimeter-wave circuits.

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How to Transition from Designing for Microwave Frequencies to Millimeter-Wave Frequencies

Higher frequency PCBs require a thoughtful choice of circuit materials well suited for millimeter-wave frequencies and circuit fabrication processes that support those higher frequencies. Part 1 of this blog will explore circuit material characteristics that make them best suited for millimeter-wave frequencies. Part 2 will examine high frequency structures and the fabrication processes that can help them do best at millimeter-wave frequencies.

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