▎ 摘　　要

This work presents a multi-variable biases device based on combined graphene patterns. The periodic arrays of graphene disks and ribbons are exploited to realize a THz absorber that is capable of acting in the whole THz spectrum as a superwave absorber. The presented device is modeled by an equivalent circuit model and the device reaction against THz radiation is verified by full-wave simulation. According to simulation results, the proposed device can show reliable response including dual-narrow bands absorption. Also, corresponding reflections can be considered as a separate output channel that shows the filtering function of the device. The details of circuit modeling are discussed while ample simulations regarding device sensitivity versus design parameters are reported. This kind of graphene-based device can be used to build several optical systems such as radars which has attractive potential in medical imaging, security, and indoor communication.