Research And Develop On The Front End Of Wireless Network Card

Ad hoc is a dynamic wireless self-organized network, and it has very attractive dynamic character. Its routing protocol realized based on linux system. To control the parameters of the protocol easily, we should design the physical system to connect with the PC. Therefore, it is very useful to realize the physical systems based on the routing protocol.At the beginning of the paper, the paper introduces the contents of the Ad hoc network and WLAN. Then we discuss the theories of the RF links, and research the basic structure of the transmitter and receiver. In the following chapter, we consider of the design of the hardware system and choose the fit chips to realize the system. In addition, we control the RF3000 using FPGA. At last, the paper introduces the methods of testing the RF circuit.The essay discusses the physical system based on Ad hoc model in detail, and introduces the problems we may meet when research the system. So the paper may have some useful to further understand the physical system.