Experimental research on establishment of the tunneling mode in a pair of epsilon-negative and mu-negative by time-domain method

Some researchers have analyzed the properties of pairing together slabs with opposite signs for the real parts of their constitutive parameters, such as resonance, tunneling and transparency. In this paper, we try to understand the mechanism of established process of the tunneling mode with time-domain method. Phase difference between the electric field and magnetic field is studied, and variations of periods of waves during established process can be found in the pair with simulation. The energy distribution along the epsilon negative and mu negative pair also can be discussed. Experimental results based on 1D microstrip structure show good accordance with simulated results.