▎ 摘　　要

NOVELTY - Designing tunable metasurface of honeycomb structure based on changes in thickness and size comprises mixing ethanol solution of polyvinyl butyral, tributyl phosphate, dibutyl phthalate and graphene powder uniformly, and placing in vacuum mixer to stir to obtain suspension; casting suspension obtained into film, and drying or air-drying naturally at room temperature to obtain film; placing film in laser engraving machine, importing drawn honeycomb structure drawing into laser engraving machine, engraving according to drawing to obtain honeycomb structure on film, and obtaining super surface of honeycomb structure; changing thickness of film and size of honeycomb, and preparing multiple honeycomb structure super-surfaces; and testing ultra-surface absorbing performance of multiple honeycomb structures through arch frame method, obtaining reflection loss curve, comparing with simulation result of CST Studio Suite and summarizing law of change of working frequency with thickness and size. USE - The method is used for designing tunable metasurface of honeycomb structure based on changes in thickness and size. ADVANTAGE - The method is simple. The preparation efficiency is high. The microwave absorption working frequency is adjusted.