The analysis and design of a vector modulator based on the novel microstrip directional coupler are presented.
本文介绍了一种基于新型微带定向耦合器的宽带矢量调制器。
This paper introduces the operational principle, the typical modulator circuit and the active control components of I Q vector modulator.
基于矢量调制法原理，介绍了一套寻北仪设计方案，并详细叙述了该仪器的物理实现方法和算法原理。
The implemented wideband modulator is tested by the VSA(vector signal analyzer).
利用矢量信号分析仪对调制器进行了测试。
The algorithm is verified by experiments and the modulator can produce digital modulation signals with good EVM(Error Vector Magnitude) and spectrum mask.
通过验证，所产生的调制信号具有良好的误差向量幅度（EVM）和频谱特征。
The algorithm is verified by experiments and the modulator can produce digital modulation signals with good EVM(Error Vector Magnitude) and spectrum mask.
通过验证，所产生的调制信号具有良好的误差向量幅度（EVM）和频谱特征。
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