A uniform convergence technique in the surface integration of arbitrary wide-band radome

In the physics optics algorithm of wide-band radome analysis, the arbitrary radome are usually expressed by grid model. Since the radome works in ultra-wide frequency band, it is unsuitable to use fixed size grid in calculation of surface-field-integration. Especially in high frequency it is impossible for workstation to generate ultra-fine grid with UG software. In this paper, an adaptive grid technique is present. Based on the grid generated at low frequency, the size of the grid can be varied with frequency adaptively to realize the uniform convergence of the surface integration. This technique minimizes the compution time without loss of accuracy.