2.4 GHz数字信号双工器的设计与实现

Design and Implementation of the Duplexer of Digital Signals at 2.4 GHz

给出了基于IEEE 802.11协议的无线局域网双工器的总体设计方案以及核心芯片的选择建议;以此为基础,重点设计并实现了双工器的总体电路,其中包括开关电路和控制电路两部分。由于采用PIN二极管作为控制元件,因此该双工器具有控制功率小、控制速度快以及体积小、重量轻等优点。设计制作的双工器已应用于无线局域网系统,取得了良好的效果。

This paper presents a system design scheme for the IEEE 802.11 WLAN duplexer; giving suggestions on chips selection ; on the basis of the above, the design and implementation of the duplexer, which includes the switching circuit and control circuit are introduced in detail. Using PIN diodes as control components, the duplexer has advantages of low power of controlling, high control speed, and small in dimension as well as light in weight. The duplexer discussed in this paper has been applied to Wireless Local Area Network, and excellent effect has been achieved.