What exactly is the challenge to 5g circuit board design? Mixed Signal Acceptance 5G Circuit Board Designs Most devices now are taking on old generation PCBs. Which means components are transmitting and receiving frequencies that will range from 600 MHz up to 5.925 GHz and bandwidth channels of 20MHz, or 200kHz for Internet of things turnkey assembly. When creating 5g circuit board design for, the components will require Mm-wave frequencies of 28GHz, 30GHz, and even 77GHz in line with the application. For bandwidth channels, 5G systems should be dealing with 100MHz right below and 400 MHz right above 6GHz frequencies. These higher speeds and higher frequencies will demand the appropriate materials inside the PCB to recapture and transmit both lower and higher signals on top of that without experiencing signal loss and EMI. In addition, an added problem is the fact that devices will become lighter, portable, and smaller. With strict weight, size, and space limitations, the PCB materials should be flexible and light while accommodating all of the microelectronics over the board printed circuit board assembly.