HFSS15: Wave Ports

The objective of this section is to provide a thorough description of waveports. You must know what a wave port represents in HFSS to understand its capability. To illustrate we will use an HFSS model of a coaxial bend as an example where the waveport is assigned on the outer face.

HFSS treats this wave port as though a waveguide or a transmission line of the exact same cross-section (in this case the cross-section of the coaxial bend) and material properties, comes from infinity and ends at the port as shown in the figure below.

The properties and the cross section of the waveguide or the transmission line determine the natural field patterns called modes that excite the model and the HFSS port solver determines the propagating modes that the waveguide or transmission line will carry.

Note: A wave port can be placed internal to a model as long as it is backed by a PEC object.