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扫频仪测圆环天线输入阻抗值的可行性研究
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扫频仪测圆环天线输入阻抗值的可行性研究
内容简介: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接平衡—不平衡变换器。针对圆环天线的输入阻抗为复阻抗,提出了一种新的四分之一波长平衡—不平衡变换器,得到了实验结果,并进行了讨论。
Abstract: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. As input impedance of circular loop antenna is complex impedance, a new one quarter of wavelength balanced-unbalanced transformer is presented for this measurement, the experiment result are got and some discussions are also given.
作者:
关键词:扫频仪, 圆环天线, 输入阻抗, 四分之一波长平衡—不平衡变换器,