5G filters are actually one of the most technically difficult core components in RF circuits, but also the highest value segment in RF front-end chips, and the fastest growing. According to semiconductor market research institute Yole statistics, from the RF front-end value distribution proportion, the value of the filter accounted for as high as 53%.
Therefore, after this kind of parts are self-contained, it takes time to climb the production capacity and adjust the optimization, so it is very easy to understand why the 5G version only belongs to the higher-priced version, because everything requires a lot of investment, and the supply may not be too much, so the task of walking can only be handed over to the \"relatively simple\" 4G version.