一种480MHz无线数传模块的设计

The design of the 480 MHz wireless module

针对中国智能电网开放的免费无线计量频段,设计了一种可工作在470 MHz～510 MHz、中心频率为480 MHz、输出功率可调的无线数传模块。模块采用MSP430F2274单片机和射频芯片CC1100E设计,利用EDA软件ADS2008仿真优化了射频电路的输出匹配网络。最后对无线模块输出功率、通信距离等参数进行了测试和验证。

With China＇s opening free radio measurement frequency band for the free wireless smart grid, wireless data trans- mission module working on 470 MHz-510 MHz （the center frequency of 480 MHz） is designed, whose output power is adjustable. MSP430F2274 microcontroller and RF module CCll00E chip are applied in this design. And the simulation is done by using EDA software ADS2008 to optimize the ouput matching network of the RF circuit. Finally, the wireless module output power, communica- tion range and other parameters were tested and verified.