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  Technical Notes > The HFSS Solution Process       

Port Solutions

The excitation field pattern at each port must be calculated before the full 3D electromagnetic field inside a structure can be calculated. HFSS calculates the natural field patterns (or modes) that can exist inside a transmission structure with the same cross-section as the port. The resulting 2D field patterns serve as boundary conditions for the full 3D problem.

• Excitation Fields

• Wave Equation

• Mesh Refinement on Ports

• Modes

• Multiple Ports on the Same Face

• Port Accuracy

• Calculating Characteristic Impedance

• Complex Propagation Constant