Acoustic Band Structure of Metamaterials

Hi folks,

I have been trying to find the band structure of an acoustic metamaterial. I have been attempting to adapt the "Bandgap analysis of Photonic Crystal" tutorial given for COMSOL 3.5a to 4.3. I am attaching the tutorial here. I was having some difficulties in implementing the same in 4.3.

1. The model says "Open the Solver Parameters dialog box from the Solve menu. Choose Harmonic propagation from the Analysis list." . However, I have not been able to find 'Harmonic Propogation' or an Analysis List in 4.3. How do I implement this?

2. The model says- "1From the Physics menu, choose Scalar Variables.
2In the dialog box that appears, enter the value freq for the nu_rfwe variable. Click OK.
3Click the Solve button on the Main toolbar. COMSOL Multiphysics uses the latest eigenvalue to calculate the initial guess for the ODE variable freq."

There is no 'Scalar Variables' options under the physics menu in 4.3 . Also, there is no 'nu_rfwe' variable. How do I get around this?

I would also appreciate any help in adapting the same for an acoustic metamaterial.