Aug 12, 2021 · This article tells what DK and Df are, the factors that cause their changes, and how to make a balance when the material can't have both low DK and Df. Finding a reliable …

Dk（介电常数）和Df（介质损耗因子）是描述PCB基材在高频信号传输中性能的重要参数。 Dk 影响信号的传播速度，而 Df 影响 介质 中的功率 损耗 。 低 Dk _ Df 意味着该基材在高频传输中 …

Our PCB Material Reference & Selection Guide covers the key characteristics of popular circuit materials including dielectric constant (Dk), dissipation factor (Df), thermal conductivity (TC), & …

Dec 28, 2022 · The Dielectric Constant (Dk), also known as the Relative Permittivity (Ɛr) of a laminate, is a measure of the capacitance or energy difference between a pair of conductor

Sep 16, 2020 · The dielectric constant is really a complex number, and there is an imaginary part that is sometimes called the dissipation factor, or Df. Dk and Df together determine the loss …

Nov 17, 2022 · Dielectric loss tangent or dissipation factor (Tan δ or Df) A material’s loss tangent gives a measure of the power lost due to the material. The lower a material’s loss tangent, the …

Dec 6, 2022 · Read our guide to low-Dk PCB materials like PTFE and low-loss FR4. These materials can be useful in high-speed designs, mixed signal, and RF systems. Low-Dk PCB …

Jun 22, 2023 · The second differential stripline (blue) is built on a 3.2 Dk, 0.005 DF material, and maintains the same line width and gap as our reference while decreasing the thickness by …

This paper will focus on understanding the dielectric constant (dk) of high frequency laminate materials. The dissipation factor (df) and other electrical properties will be discussed as well, …

• Counter-clockwise phase angle is another indication of non-causality. Response before time zero or after DUT is non-causal. Trace-only attenuation is written in one equation. …