One of the big themes at Mobile World Congress this year will be millimeter wave spectrum – not just the technology, but the realities of deploying cost-effective 5G or WiFi 6 networks in these plentiful, but challenging, bands. A great deal of engineering effort has been made in the unlicensed 60 GHz band, and the 3GPP industry is starting to catch up as operators in the USA, Japan and other countries deploy mmWave networks, or plan to do so soon. Start-ups and established vendors are vying to address the challenges of short signal range – and resulting high costs of the very dense networks required – as well as getting chips into mass market devices. Among them, RF specialist Movandi…