As __jal points out, Ultra-wideband does not solve the problem because while it may in some cases be useable alongside existing allocations, it does not ultimat

As __jal points out, Ultra-wideband does not solve the problem because while it may in some cases be useable alongside existing allocations, it does not ultimately increase the information capacity of a particular piece of spectrum. There may be some circumstances where it can help, but it does not eliminate scarcity.