In many practical problems

one often needs to determine the entire frequency characteristic of objects.To fast and accurately analyze

a hybrid method combining automate multipoint well-conditioned asymptotic waveform evaluation(AMWCAWE) with MNM is presented in this paper.Firstly

single point well-conditioned asymptotic waveform evaluation(WCAWE) technique is developed into multipoint well-conditioned asymptotic waveform evaluation(MWCAWE).Then relative residual is defined to automate MWCAWE.When ineffective bandwidth is very narrow

a novel iterative technique-MNM is employed to substitute a new expanding point

which improves the computing precision

efficiency and also saves memory.At last

the scattering characteristic of several representative PEC objects is analyzed using AMWCAWE with MNM throughout the entire frequency band.Numerical examples are given to illustrate accuracy and robustness of this method.