LPDA宽带宽角响应的快速矩量法计算

MoM fast calculation of log-period dipole antenna with wide-band and wide-angle response

根据一种具有分域基和全域基各自优点的混合域基函数,采用伽列金矩量法对对数周期天线(LPDA)进行方向图和电流分布计算。由于该混合域基函数的运用,仅需将天线振子剖分较少分段即可得出较为精确的解,计算结果证明了所提方法的正确性和有效性。

In this paper, a mixed-domain basis function , which has the merits of sub-domain and entire-domain, is applied for the wide-band and wide-angle response calculation for the log-period dipole antenna（LPDA）. This mixed-domain basis function can improve the Calculation speed since the antenna is only needed to plot few segments. At last, this paper gives the direction pattern and current distribution in the antenna. Numerical results are given to testify the validity of the presented method.