A New Era of Analog Predistortion for Millimeter-Wave Backhaul: We Don’t Back Off

Journal article, 2026

As the deployment of 5G networks matures and the research community pivots toward the conceptual frameworks of 6G [1], the demand for data throughput is accelerating rapidly. There is a fundamental shift in wireless network requirements, driven by greater demands for bandwidth that are difficult to meet with the congested sub-6-GHz spectrum. The primary solution is to go up in frequencies, in search of wider available bandwidths and less contention, toward millimeter-wave (mm-wave), specifically the E band (71–86 GHz) [2]. These bands represent the current industrial frontier of wireless backhaul systems, offering the larger spectrum allocations necessary to support multigigabit data links.