When using frequency sweep meter to measure the input impedance of antenna, the balanced - unbalanced transformer must be connected between coaxial transmission line and antenna.
用扫频仪测量天线的输入阻抗时，在同轴传输线与天线间应按平衡—不平衡变换器。
In this model, running state of transmission line is divided into four states, and calculation method of state probability, state frequency and state duration in balanced state are given.
该模型将输电线路的运行状态划分为四种状态，给出了每种平稳状态的状态概率、状态频率和状态持续时间的计算方法。
To obtain the balanced feed for the dipole antenna driven by a coaxial transmission line, a coplanar waveguide fed structure is used.
为获得在同轴馈电时天线振子的平衡馈电，该设计使用了共面波导馈电结构。
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