Study on Frequency Drift Phenomenon of Time Varied Plasma in 1D Metal Resonant Cavity

In this letter, a frequency drift phenomenon is simulated, when the electromagnetic wave is created in 1D metal cavity, by the modified JEC-FDTD method. By using the method, its resonant frequency of metal cavity is obtained under the conditions of the time varied plasma. The results show that the faster the plasma is generated, the more obviously the frequency drift phenomenon.