Study on the Micro-Oscillation Phenomenon of Bent Microstrip Line

The micro oscillation phenomenon of bent microstrip line is investigated in this paper by FDTD method and FFT. The micro oscillation phenomenon actually is due the small discontinuity in the bent region. In this paper, a Gaussian pulse is excited into the bent microstrip line, and the oscillation phenomenon is then studied by analyzing the waveform of reflected pulse of the bend and the corresponding frequency spectrum. The relationship between the oscillation and the structure parameters of the bent microstrip line is given.