Broadcom failed in its bid to challenge Qualcomm in the LTE modem chip market, exiting the space two years ago only months after acquiring Renesas Mobile. But it may be a different story in 5G, if it can harness the radical technology it acquired a month ago with Israel-based Magnacom. Magnacom brings its new owner a patented modulation scheme, WAM (wave modulation) which it claims to be superior to the well-established QAM, promising 50% higher throughput (other things being equal) and 50% less power consumption. This could enable Broadcom – itself acquired by Avago, which then took the US firm’s name – not just to leapfrog rivals in the WiFi chipset business, but to play a role in future 5G…