In 2026, high-frequency applications—5G/6G base stations, mmWave radar for autonomous vehicles, satellite communications, aerospace systems, and IoT edge devices—are pushing PCBs beyond 10 GHz and into mmWave bands (24–100 GHz). While standard FR4 generic PCBs are good for low to mid frequencies, they are not always suitable for signal loss, dielectric stability, impedance precision and thermal performance. It's here that a dedicated high-frequency PCB supplier really comes i