BoM Reduction for the 5G Radio Unit

This paper explores strategies for reducing the bill of materials (BoM) in 5G massive MIMO radio units, with a focus on optimizing RF component integration while maintaining performance standards. We examine the architecture of Argo Semiconductors product series “AS0102” RF-sampling companion IC and analyze challenges related to electromagnetic interference (EMI) and crosstalk that arise from passive component coupling. Through comprehensive EM simulations, we identify key factors influencing TX-TX and RX-RX isolation, such as transformer placement and decoupling capacitor positioning. Our findings suggest that carefully managing floor planning and signal integrity can significantly improve isolation, enabling efficient BoM reduction without compromising on system performance. The insights from this study provide valuable guidelines for the design of future 5G radio units.