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讯号流图是图论的一个分支,它可以不经过求解电路方程,而直接从图形得出解的结果,从而使电路的分析大为简化。目前讯号流图的方法在微波网络的分析中,应用日渐增多,国内已有报导,但应用尚不广泛。本文拟就讯号流图的最基本知识,作一简略介绍,并着重于在微波电子器件行波管测量中,经常碰到的网络问题,用讯号流图来加以说明.以实例为主,不作证明,以供有兴趣者讨论。
Signal flow graph is a branch of graph theory, it can not solve the circuit equations, but directly from the graphic solution to the results, so that the analysis of the circuit is greatly simplified. At present, the method of signal flow graph has been widely used in the analysis of microwave networks. It has been reported in China but its application is not yet widespread. This article intends to signal flow diagram of the most basic knowledge, make a brief introduction, and focus on the microwave electronic devices traveling wave tube, often encountered network problems, using signal flow diagram to illustrate. Prove, for the interested to discuss.