A free impedance and power-handling calculator predicts design attributes for microstrips and striplines based on the design’s target impedance and dielectric properties of RF, microwave and mm-wave laminate materials. Dielectric properties calculated by this tool include the effect of dielectric anisotropy, the difference when measured along different axes in a material's dielectric constant and dissipation factor. Provides design or equivalent dielectric constant to facilitate modeling for printed circuit board designers to predict impedance and other design attributes. Computes changes in the dielectric constant due to dispersion at higher frequencies. Computes total insertion loss – a measure of power lost through heat for power-handling calculations, including dielectric loss, conductor loss, and loss due to surface roughness.

Isola, https://isodesign.isola-group.com/phi-calculator/

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