▎ 摘　　要

In this paper, a multilayer MoS2 frequency tripler (MFT) and a graphene frequency tripler (GFT) are presented. The multilayer MoS2 and graphene have strong nonlinear characteristics. When the input power is about 14 dBm and the input frequency is 0.75-1.1GHz, the maximum out power of the 3rd harmonic wave of the MFT is -27.1 dBm and it is about 9-13dB lower than that of the fundamental wave leakage power. Under the same experimental conditions, the maximum output power of the 3rd harmonic wave of the GFT is -13.1dBm, and it is 22-28dB lower than the fundamental leakage power. At the same time, the even-order harmonic output power values of the two triplers are very small. Therefore, the MFT's fundamental-wave-leakage power is smaller than that of the GFT, and the conversion loss of the GFT is lower than that of the MFT.