【摘要】 研究了理想导体面上任意形状的波导-口径天线的辐射特性。利用波导腔和自由空间之间的场匹配技术给出了描述它们之间的耦合关系的线性方程组,通过求解线性方程组的未知系数,严格计算了口径天线在半空间的辐射场,波导内的反射场及导体板上的电流分布;并通过数值算例进行了验证。更多还原

【Abstract】 This paper treats the radiation from an arbitrary aperture in a perfect conducting plane backed by waveguide. The radiated field into the half space, the reflected field in the waveguide, and the surface currents on the conducting plane are calculated by means of matching technique between the waveguide cavity and the plane wave expansion of the free space field. A system of linear equations which determine their coupling relationship is achieved and can be readily solved. Numerical examples demonstrated the validity.更多还原