By default, the 'reference signal' (see Excitation Signal View) is directly applied to each port. The time domain solvers (FIT and TLM) can use any arbitrary time signal to excite the model (see also Time Domain Solver Overview).

Accordingly, the input spectrum may vary across frequency. For field source excitations, the amplitude is determined by the input data of the source. This is equivalent to an input spectrum that is constant over frequency and the resulting output spectra are equivalent to transfer/system/network functions. The amplitude of this time-harmonic excitation for ports and plane waves is constant across all frequencies (typically '1', see table below). waveguide or discrete ports, plane waves, or field sources.Īll frequency domain solvers within CST Microwave Studio assume a time-harmonic excitation for each calculated frequency point (see also Frequency Domain Solver Overview). The input signal is given as peak values.ĬST Microwave Studio offers several source options to excite a given structure, e.g. This scaling factor also carries the specific units of the source types and is described in more detail below. The input signals for the different source types are defined as the reference signal multiplied by a certain fixed or user-defined scaling factor. This reference signal itself is unitless. The common reference signal for these sources is indicated in the Navigation Tree as explained in the Excitation Signal View. Reference and Normalizing Reference and Normalizing CST Particle Studio offer several sources for exciting a given structure, e.g.

Microwave studio