EMBEDDED WIRELESS MADE EASY

摘要

An industrial manufacturer recently took its first stab at building wireless capabilities into one of its products. Engineers there spent two years trying to devise an RF interface that would pass FCC certification tests. They went through several redesigns and chewed up about a million dollars in the process. After the second time their efforts failed the FCC hurdle, they decided to throw in the towel and buy an off-the-shelf WLAN module instead. The experience of this manufacturer is not uncommon. The design of RF circuitry is still a discipline that is part art and science. It can trip up the uninitiated who underestimate the resources necessary to field equipment that stays within strict guidelines spelled out by regulatory agencies.