This paper prevents a wideband low noise amplifier worked in L band and S band using a new equalization structure. Usually, in order to design a wideband amplifier, we should use an equalization to compensate for inconsistencies in active component's gain response. Microstrip equalizer is always composed of microstrip transmission line coupled with microstrip resonators and resistance. It is known that the limit of a traditional microstrip equalization corresponding is the one quarter length transmission line. So it usually can work only in an octave band. In the paper, we prevent a novel equalization that can work a wide band which the high frequency of the work band is more than three time the low frequency of the work band. And the equalization is also smaller than traditional equalization. We finally use design a equalization which works from 1 GHz to 3 GHz. Then we designed a wideband low noise amplifier using the equalization. This LNA works from 1 GHz to 2.6 GHz. It covers over the GPS band to WiFi band. This amplifier is cascaded by three pHEMT ATF54143. The gain of the amplifier is more than 35 dB. And it simulation noise figure is below 1.1 dB all over the band. The substrate we use is FR4 with the thickness of 0.8 mm.