Fig. 7
From: Amplitude and phase control in SIW structures by tuning multilayered graphene

Circuit model analysis of the GHMSIW phase shifter (a) Equivalent circuit model (b) S21 amplitude (c) S21 phase.
From: Amplitude and phase control in SIW structures by tuning multilayered graphene

Circuit model analysis of the GHMSIW phase shifter (a) Equivalent circuit model (b) S21 amplitude (c) S21 phase.