计算弯曲线天线的输入阻抗，辐射方向图以及增益（可以计算不同的直线长度，弯折次数，弯折高度，弯折角度的弯曲线天线）-Calculation of bending wire antenna input impedance, radiation pattern and gain (the straight line can be calculated in different length, bending frequency, a high degree of bending, bending angle of bending wire antenna)
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