方向圆 bearing circle
- 在一定轴比带宽条件下,优化后的十字振子天线正交方向上圆极化轴比可以达到1。
Under certain axis ratio bandwidth, the circular polarization axis ratio of the optimized cross dipole antenna can reach 1. - 对四边形和方向圆特性阻抗继电器躲线路最大潮流的能力进行了详细分析,提出了距离保护负荷限制电阻的整定原则和整定方法,并给出了整定建议值。
It puts forward the setting principle and method of load limiting resistor of backup distance protection and gives the propositional setting value of load limiting resistor. - 结果表明,偏振差损的影响可以消除,而方向和磁圆二向色性差损无法通过改变磁场和失谐频率消除。
Zero drift caused by differential polarization loss can be eliminated, while caused by differential direction loss and magnetic circular dichroism loss can not be eliminated.
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