非线性有源天线阵相位噪声的计算及测试  

Caculating and testing of phase noise in nonlinear active antenna array

作　　者：高伟亮[1] 姜永华[1] 

机构地区：[1]海军航空工程学院401教研室,烟台264001

出　　处：《国外电子测量技术》2009年第5期34-37,41,共5页Foreign Electronic Measurement Technology

摘　　要：为了将非线性有源天线阵应用到高性能雷达和通信系统中,必须尽可能地降低非线性有源天线阵的相位噪声。首先介绍了非线性有源天线阵的拓扑结构及相位噪声模型;然后根据该模型详细推导了非线性有源天线阵相位噪声的计算公式,并对整个阵列的相位噪声进行了计算机仿真;最后搭建了1×4单元非线性有源天线阵实验系统并对其相位噪声进行了测试,测试结果与计算机仿真结果吻合;最终得出了非线性有源天线阵低相位噪声信号的产生方法。In order to make the nonlinear active antenna array used on the high-powered radar and communications systems, the method to reduce the phase noise should be introduced as soon as possible. First, this paper introduces the topology structure and the phase noise model of nonlinear active antenna array, deduces the computing expressions of the phase noise in detail, and completes the computer simulation of the whole array＇s phase noise according to the model. Secondly, establishes the experiment system of 1 X 4 element injection-locking oscillators array and fulfills the testing of phase noise, and the result of computer simulation is consistent with the result of testing. At last, paper presents the generating method of low phase noise signal based on nonlinear active antenna array.

关 键 词：非线性 有源天线阵 注频锁相 相位噪声 

分 类 号：TP301[自动化与计算机技术—计算机系统结构]