CAJ | 학술논문

针对传统矩量法分析天线阵列效率低的问题，给出了一种分析蝶形天线阵列电磁辐射特性的有效数值方法，该方法基于特征基函数法（CBFM ）和等效偶极矩法（EDM ），不仅可以加速阻抗矩阵的产生，还可根据特征基函数（CBFs）的阶数和子域的数目调节系数矩阵的维数，从而可以采用直接法求解缩减矩阵方程，与传统矩量法（MoM）相比，显著地减小了运算量。数值结果验证了蝶形天线阵列的方向图并证实了该方法的精确性和有效性。
침대전통구량법분석천선진렬효솔저적문제，급출료일충분석접형천선진렬전자복사특성적유효수치방법，해방법기우특정기함수법（CBFM ）화등효우겁구법（EDM ），불부가이가속조항구진적산생，환가근거특정기함수（CBFs）적계수화자역적수목조절계수구진적유수，종이가이채용직접법구해축감구진방정，여전통구량법（MoM）상비，현저지감소료운산량。수치결과험증료접형천선진렬적방향도병증실료해방법적정학성화유효성。
In view of the problem of low efficiency in analyzing the antenna arrays using the traditional method of moments (MOM),an efficient numerical approach for the electromagnetic radiation characteristics analysis of bow-tie antenna array is presented based on the combination of the characteristic basis function method(CBFM)and the equivalent dipole moment(EDM)method,which can not only accelerate the production of impedance matrix,but also can adjust the size of the coefficient matrix according to the order of CBFs and the number of sub-blocks,thus it is possible to handle the reduced matrix equation by using a direct solution. The computa-tional cost is reduced significantly compared with the traditional MoM. Numerical results validate the radiation pattern of bow-tie antenna array,as well as the efficiency and accuracy of the approach.