[互助]关于主从边界条件看色散曲线的问题

2. Do the same to the x-z faces of the unit-cell. Label themaster as my and the slave as sy. For sy make sure toreverse the V Vector and use a variable (py) and input an initialvalue (0 deg). *Do not forget to put in “deg.”

For the first parametric sweep, we will go from Г toХ and this will be labeled 1_Gamma2X. Add a linear step sweep for thevariable px from 15 deg to 180 deg with 15 deg steps. In the Options tabmake sure to check both Save Fields and Mesh and Copy geometricallyequivalent meshes.

For the second parametric sweep, we will go from Хto M and this will be labeled 2_X2M. Add a linear step sweep for thevariable py from 15 deg to 180 deg with 15 deg steps. We have to set px to 180 deg. To do this go to General tab and check override for px and input 180 deg as shown in Fig. 7.  In the options tab make sure to checkboth Save Fields and Mesh and Copy geometrically equivalent meshes.

For the third parametric sweep, we will go from M toГ and this will be labeled 3_M2Gamma. Add a linear step sweep for thevariable px from 15 deg to 180 deg with 15 deg steps and also for thevariable py. Select both of these sweeps and Sync them as shown in Fig.8. In the options tab make sure to check both Save Fields and Mesh and Copy geometrically equivalent meshes.

Plots for each parametric sweep have to be made. For the Г to Х parametric sweep, create a report and use the default values (EigenmodeParameters, Rectangular Plot). In the Sweep tab, choose Sweep Design andProject variable values and choose px values from 15 deg to 180 degand for py select only 0 deg. For the Y tab, choose EigenModes>Mode(1)>re. We only wish to look at the real part of the eigenmode, theimaginary part is due to loss which is ignored since a parallel platewaveguide’s loss is negligible for the fundamental mode. The finished plotshould look like Fig. 9.