If you’re looking for a primer on what Design Dk (dielectric constant) is, then look no further. John Coonrod shares a presentation about Design Dk and what it’s all about.   Circuit design and modeling is a highly complicated process.  There are different test methods and as John notes, each have their pros and cons.  John shares some of the methodology he uses to define a consistent Dk value for Rogers high frequency laminates used in printed circuit boards (PCBs) and other microwave electronics.

The presentation covers:

  • What is meant by Design Dk, Specification Dk and Process Dk
  • Publishing the Design Dk
  • Test methods
  • Design Dk test method defined
  • Supporting documentation

View the presentation:


4 Responses to What is Design Dk?

  1. […] posts examined some of the key material parameters pertaining to high-frequency laminates, such as dielectric constant, thermal conductivity, coefficient of thermal expansion (CTE), and even flexibility when used in […]

  2. […] (εr) across a circuit board, for example, is particularly critical at 77 GHz, where variations in dielectric constant (Dk) can translate into changes in the impedance of transmission lines, and changes in frequency. Such […]

  3. […] A key starting point in sorting through printed circuit board (PCB) materials is usually the dielectric constant, or Dk, one of the essential characteristics of a laminate material and one that is subject to much […]

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