【摘要】 对椭圆形阵列天线的方向特性进行了研究,证明了直线阵和圆环阵是椭圆形阵的特例。给出了椭圆形天线阵及在椭圆的中心和两个焦点上分别或同时加上一个阵元的情形下天线阵的方向性函数,并绘制了相应的方向性图,仿真计算结果表明在椭圆的中心和焦点处加上阵元可有效地降低副瓣,同时又不增加阵列的孔径。更多还原

【Abstract】 In this paper the directional characteristics of elliptic array antennas is studied and the fact that a linear array and a circular array is the especial cases of an elliptic array was proved.The directional functions of antenna and those with an element added to the center or focuses were given.The corresponding patterns were calculated.The results of simulation indicate that by above means the side lobe can be reduced effectively without increasing the aperture.更多还原