1. Write the point-form of Maxwells equations in the frequency domain for an air-filled rectangular waveguide.
2. Derive the vector wave equation in terms of the frequency-domain electric field intensity Hs.
3. Derive the scalar wave equation in term of Hzs. Also derive a simplified second order partial differential equation in terms of Hzs with the axial variation of the wave of e-joz.
4. Write the Hzs expression in the dominant mode.