Only a small number of start-ups in the mobile industry achieve instant breakthrough, especially if they focus on chips or equipment. This is not the world of apps or web services, where a small investment and some clever marketing can create a sensation, and attract a skyhigh valuation. Companies focused on wireless infrastructure are more likely to have to adopt the old motto – ‘if at first you don’t succeed, try, try and try again’. An example is Artemis Networks, whose CEO, Steve Perlman, first unveiled the pCell (personal cell) back in 2014, claiming it would make conventional 4G redundant. Bold claims persisted – in 2020 he claimed the pCell enabled networks that were faster than 5G. But behind…