▎ 摘　　要

NOVELTY - The utility model claims a high performance single-layer graphene terahertz wave reflection modulator, the device bottom layer is composed of a metal gold layer as a reflection layer, a silicon dioxide substrate layer, a silicon substrate is used as the middle layer, a silicon dioxide substrate layer, a layer of graphene incident layer, formed by stacking from bottom to top with symmetrical five-layer structure. the modulator by equivalent circuit method, theoretical calculation, by observing the structure of the modulation signal, it is possible to realize high modulation depth, high modulation speed and wide bandwidth characteristics. the modulator structure simply, compact and rational structure and it is convenient to process.