FR4 vs. Rogers at High Frequency
Explore how substrate properties affect a high-frequency design.
Input parameters
Results
Use the actual laminate grade and its frequency-dependent data.
Model & assumptions
Homogeneous TEM comparison: λ = c/(f√εr); delay = length √εr/c; dielectric loss = 8.686πf√εr tanδ length/c.
Defaults are illustrative, not specifications for all FR4 or Rogers grades. This homogeneous dielectric comparison excludes microstrip air fields, copper loss, impedance and connectors. Enter measured grade data at your frequency.
Sources
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