Harmonical characterization of a microstrip bend via the finite difference time domain method

Optimization of uniaxial perfectly matched layer parameters for finite difference time domain simulation and application to coupled microstrip lines with multiple bend discontinuities

“…The measured results show some discrepancy with our results and the theoretical results of [10]. These errors are attributed to the connector-strip junction imperfection, as well as the appearance of resonance phenomena dependent on the distance between the reference planes or on the distance between the alimentation access and the discontinuity [10], which are not accounted for in the computation of the theoretical results in [10] and the results obtained by the present method.…”

“…It can be seen from this figure that our computed result has fair comparable accuracy to the results of [10].…”

“…In order to validate the method proposed here, the computed results for a single microstrip line with a single right angle bend are compared in Figure 9 with the theoretical and measured results given in [10]. It can be seen from this figure that our computed result has fair comparable accuracy to the results of [10].…”

“…These errors are attributed to the connector-strip junction imperfection, as well as the appearance of resonance phenomena dependent on the distance between the reference planes or on the distance between the alimentation access and the discontinuity [10], which are not accounted for in the computation of the theoretical results in [10] and the results obtained by the present method. The discrepancy may also be due to various other factors like connector loss and mismatch and unevenness of the etched line.…”

“…The FDTD method [9] was chosen in preference to other techniques because it is not only a robust method but also needs little or no analytical preprocessing. Feix et al evaluated the S-parameters for a single microstrip line with a single right angle bend using FDTD [10].…”