5g telecom pcb design: AAU, RU, DU, Small Cell
5g telecom pcb design lays the fundamental hardware foundation for modern 5G network infrastructure deployment. It covers AAU, RU, DU and small cell infrastructure, dealing with mixed high-frequency RF and high-speed digital signals. As one important branch under industry PCB applications, this article walks through high-frequency material selection, hybrid stackup structure, passive intermodulation control, impedance…