Beamforming EMI Effects on a DDR4 Bus of a 5G Smartphone
5G-capable smartphones and other user equipment will provide a large amount of real-time broadband data access to customers on the go. At frequencies of interest in 5G applications, for instance, say 28 GHz, these smartphones and user equipment can make use of advanced phased-array beamsteering technologies to provide uninterrupted and superior cellular service in congested environments. When several miniaturized radios, digital systems, components and wireless assemblies are packed in a compact area such as a smartphone, the device could become susceptible to electromagnetic interference problems. Accurate simulation tools such as Ansys HFSS and Ansys RF Option help engineers diagnose and mitigate sources of electromagnetic interference in these devices early in the design cycle. The workflow in this application brief is beneficial for engineers designing efficient and robust electronic devices in 5G. It helps increase the immunity of the devices and minimize radiated emissions to meet stringent regulatory standards and maintain electromagnetic compatibility (EMC) — a critical step for bringing 5G products to market.
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