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free oscillation 【物理學】自由振動。

free press

Secondly , this paper illustrated the nonlinear phase dynamic theory of the aia array and the application of it to power - combining and beam - scaning technique . according to these theories , the coupling parameter of nearest neighbors was found by experiment , then the two - element and three - element aia array were designed , and the result of measurement was in agree with that of the nonlinear phase dynamic theory , and the beam - scaning of two - element array was realized by tuning the free oscillation frequency of the elements 其次,本文討論了有源集成天線陣列的非線性相位動態理論以及它在功率合成和波束掃描方面的應用,包括同步工作條件、穩定條件和相位動態方程等,通過實驗確定了陣列中相鄰單元間耦合參數,并將之運用于有源集成天線二元陣和三元陣的設計,實驗結果與理論結果吻合較好。