The holy grail in wireless ICs is a cost-effective one chip solution. The challenge has been the integration of all digital and analog functions, including RF, on a single SoC. To date, this has only been accomplished for relatively low-power, short-range networks. As the range increases, the amount of transmission power required also increases, requiring separate RF power components (Power Amplifiers, RF Switches and RF Filters). This determines the level of integration that can be achieved. Today, most wireless solutions utilize separate RF components to provide the transmission power required. But things are changing.
Over the next five years, unit shipments for wireless semiconductors for PANs, LANs and WANs will increase at a CAGR (compound annual growth rate) of more than 20%, much higher than the CAGR for total semiconductor shipments. According to Semico Research Corp. there will be key segments such as WiMAX that will experience over 90% CAGR. That growth prospect is attracting new players who are hoping to get a piece of the action with innovative solutions. These players include large, established manufacturers as well as small, startups.