CST2013: Excitation Source Overview

- Discrete Ports

(lumped elements)

Discrete ports are available as S-Parameter, voltage or current port. They are mainly used to simulate lumped element sources inside the calculation domain and can be used for TEM-like modes.

Input: Knowledge of TEM-mode, line impedance (voltage or current respectively)

Output: Voltage or current

- Waveguide Ports

- Multipin Ports

(2D eigenmode solver)

Waveguide ports are used to simulate an infinitely long waveguide, e.g. a rectangular waveguide, a coaxial cable or a microstrip line. They deliver a better match to the mode pattern as well as higher accuracy in S-Parameters.

Input: Area for eigenmode solution

Output: E and H-pattern, line and wave impedance, propagation constant (beta, alpha)

- Plane Waves

Excitation of linear, circular or elliptical plane waves.

- Farfield Sources

Import of a farfield monitor file calculated with CST MICROWAVE STUDIO

- Nearfield Sources

Import of near field source data calculated by CST MICROWAVE STUDIO, CST CABLE STUDIO, or CST PCB STUDIO. Also available is the import of Sigrity? NFD radiation data.