Quantenna Communications just keeps on growing, pumping first quarter 2018 revenue up to $45.1 million, from $37.8 million in the same period last year. Perhaps we should contain our surprise, considering the WiFi chip maker only recently won a shiny new Comcast contract – an assumption which would be entirely mistaken. In fact, Quantenna isn’t shouting about Comcast at all – choosing not to make a single mention of its deal with the mammoth US operator in its financial report or earnings transcript published this week. There are a couple of possible explanations, however. Quantenna’s revenue by region shows North America accounting for just $14,000 for the quarter, up from $13,000 last year. The explanation for this is that all…