Abstract—An improved Discontinuous Galerkin Time-Domain<br>(DGTD) method based on regular hexahedron is proposed for<br>reducing the computational complexity. The derivation process of<br>the equations and calculation method is described. And the<br>explicit scheme of DGTD Maxwell’s curl equation based on<br>regular hexahedron is given. By comparing with the general<br>DGTD method, this method has a more simplified form and less<br>memory requirements. Numerical experiments validat
