Microwave Absorption Properties of （LiFe）_xZn_1-2xFe₂O₄

(LiFe)_xZn_1-2xFe₂O₄(x=0.1、0.2、0.3、0.4、0.45、0.5) were prepared by a conventional solid-state reaction method,and the influence of Cr₂O₃ and Al₂O₃ additives on microwave absorption properties of(LiFe)_0.45Zn_0.1Fe₂O₄ was investigated. The results manifest that the(LiFe)_0.45Zn_0.1Fe₂O₄ has the best absorption property,and adding 1% Al₂O₃ to(LiFe)_0.45Zn_0.1Fe₂O₄ helps to broaden the bandwidth of reflection loss at-10dB.