· NimblePCB Engineering · Engineering
High-Frequency Microwave PCB Substrate Selection: Dk & Df Comparison of PTFE, Ceramic-Filled, and FR-4
As 5G, automotive radar, and satellite communications demand ever-higher signal integrity, choosing the right PCB substrate is critical. This guide compares the dielectric constant (Dk) and dissipation factor (Df) of FR-4, PTFE, and ceramic-filled substrates for high-frequency microwave circuits.