Bulk acoustic wave (BAW) is not a household phrase, even in many wireless circles, but as communications creep ever higher up the spectrum bands, it is going to be increasingly important. The rise of WiFi 6E and 5G mean that this new, pricier form of RF filter is going to be integral to future comms infrastructure. If we look at the relatively small pool of vendors producing BAW RF filters, one seems to be climbing the ranks fast. New York-based Akoustis has its eyes set on toppling Broadcom and Qorvo to become the new face of BAW filters as it moves into mobile handsets – if it can grow its production facility fast enough. BAW is a wireless transmission technology…