基于空地自组织网络平台的射频前端设计
首发时间:2021-01-18
摘要:本文提出了一种适用于无定形扁平化空地自组织网络平台的射频前端模块,该模块主要包括:一款高隔离度单刀双掷(SPDT)射频开关,一款低噪声放大器以及一款功率放大器。添加此模块后,自组织网络中的节点可以实现发射和接收端口的分离。仿真结果表明:在工作频率2.4GHz-2.5GHz内,射频开关的插入损耗小于1dB,隔离度大于40dB,0.1dB压缩点为38dBm;低噪声放大器的噪声系数为0.515,增益大于30dB,1dB压缩点为-12dBm;功率放大器的增益大于19dB,1dB压缩点为41.19dBm,此时放大器的效率为56.207%。组网实验结果表明:无线自组织网络拓扑在一定距离内保持稳定。
关键词: 电路与电子信息系统 空地自组织网络 射频开关 低噪声放大器 功率放大器
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A RF front end designed for amorphous flat air-ground ad-hoc network platform
Abstract:In this paper, a RF front end module is designed for the amorphous flat air-ground ad-hoc network platform, which includes a high isolation single-pole, double-throw (SPDT) RF switch, a low noise amplifier and a power amplifier. The node could separate the transmitting and receiving branches after themodule were added.The simulation results showed that at the frequency 2.4GHz-2.5GHz, the insertion loss of the RF switch is less than 1.5dB, the isolation is greater than 40dB,and the compression point of 0.1dB is 38dBm. The noise factor of the low noise amplifier is 0.515, the gain is greater than 30dB, and the compression point of 1dB is -12dBm. The gain of the power amplifier is greater than 19dB, the compression point of 1dB is 41.19dBm, and the efficiency of the amplifier is 56.207%. Networking tests results showed that the topology of ad-hoc networks remains stable within a certain distance
Keywords: Circuit and electronic information systems flat air-ground ad-hoc network RF Switch Low Noise Amplifier Power Amplifier
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