Figure 7

The experimental observation for the evolutional instantaneous impedance: (a) the measurement result of the instantaneous impedance of the bilateral periodic microstrip line with line width \(w\) = 1.04 mm, (b) the measurement result of the instantaneous impedance of the unilateral periodic microstrip lines with line width \(w\) = 1.04 mm, (c) the instantaneous impedance measurement result of the bilateral periodic microstrip lines with geometric dimensions in Table 1, (d) the instantaneous impedance measurement result of the unilateral periodic microstrip lines with geometric dimensions in Table 1, and the photos (e), (f) represent the instrument for measuring the circuits in our experiment.