Study on antenna radiation using multiresolution time domain based on daubechies-wavelet

The multiresolution time domain (MRTD) was researched and analyzed, used to calculate the antenna radiation, in order to illustrate its superiorities and advantages. First of all, the paper derived the strict calculation formula, while analyzed its dispersion characteristic and the absorbing boundary condition-generalized perfectly matched layer (GPML). Then this algorithm was used to analyze a monopole antenna radiation, to construct a model and get an optimal program. At last, the important parameters can be calculated, furthermore, compared with the experiment values. Experimental results indicated that the simulations and the real measures were almost same, it was absolutely conform to the fact requirement. MRTD not only has the good dispersion characteristic, but also has the high velocity, good accuracy, and less utilization of the computer´s memory and CPU and so on.