“…According to the technical documents of various commercial silicone rubbers, the typical values of dielectric constant are in the range of 2.6–3.4 F/m [ 21 , 43 , 44 , 45 ]. According to other literature, the range of dielectric constants of the identified silicone rubber ranges from 1.8–5.2 F/m [ 16 , 46 , 47 , 48 , 49 , 50 , 51 , 52 , 53 ]. Since the dielectric constant does not change much with frequency, the value for the dielectric constant at a lower frequency remains almost the same as at a higher frequency [ 16 , 46 , 48 , 49 ].…”