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。
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.
该平衡-不平衡变换功能是利用了无线电接收机与天线之间的一个传输线来实现的，它具有最小的横向尺寸和一个预定的长度。
The balun function is performed by using a transmission line of minimum transverse dimensions and a predetermined length between the receiver and the antenna.
文章拟从蝙蝠翼天线馈电系统入手，分析讨论其能够解决阻抗变换和平衡与不平衡转换原理。
From the batwing antenna feed system, the paper analyzes that he batwing antenna feed can solve the impedance shift, and the principles of transformation of balance and imbalance.
在电力变换器中，不平衡会产生不希望的直流波动以及交流侧无特征的谐波。
In power converters, unbalances generate undesirable DC ripple and non characteristical harmonics in the AC side.
针对测试环境中不平衡量信号的特点，提出了离散傅里叶变换快速算法，并在通用微机上实现。
According to the characteristics of unbalance signal, the fast algorithm of discrete Fourier transform (DFT) is presented and accomplished by using microcomputer.
针对测试环境中不平衡量信号的特点，提出了离散傅里叶变换快速算法，并在通用微机上实现。
According to the characteristics of unbalance signal, the fast algorithm of discrete Fourier transform (DFT) is presented and accomplished by using microcomputer.
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