Analysis on the Effective Dielectric Constant of COC-Based Particle-Doped Composites at Terahertz

In this paper, the impact of particle size and shape on the effective dielectric constant of particle-doped composites in terahertz is investigated by simulation. The simulated results show that the size of the particles has almost no effect on the dielectric constants of the composites. While, at the same volume fraction, the composites doped with spherical particles have larger dielectric constants than those doped with cubic particles. Through observing the electric fields on the cut surfaces of the two composites, the reason for the regularity is analyzed from the point of energy storage.