How to Choose High Frequency PCB Materials and Stackups for Medical RF, Ultrasound, and Wireless Modules (U.S.)
Quick Summary A High Frequency PCB is selected by losses, stability, and repeatable impedance—not by a brand name. For U.S. medical RF, ultrasound, and wireless modules, the practical decision hinges on dielectric constant (Dk), dissipation factor (Df), copper roughness, and stackup geometry that keeps impedance controlled through manufacturing variation. Wireless commonly lives in the 2.4 […]
