WIPL-D Time Domain Solver

Time Domain Solver is an add-on tool for WIPL-D Pro 3D EM Solver. It features a user-friendly interface and it is intended for transient analysis of 3D structures. The time-domain response is calculated based on frequency domain simulation in WIPL-D Pro and Fourier transform. The tool is seamlessly integrated into WIPL-D Pro so the frequency domain simulation and conversion to time-domain results is performed automatically. Integration with WIPL-D Optimizer allows advanced multi-algorithm optimization of time-domain response.

Time-domain excitations are specified from a variety of predefined waveforms such as: Gaussian pulse, Gaussian monocycle, rectangular and exponential pulses, and sinusoidal wave. In addition, Time Domain Solver can read in any user-specified excitation waveform and calculate the required transient response.

Graphical user interface is very user-friendly, offering two modes: wizard and expert. The wizard mode divides all user required input into stages thus facilitating the process, while the expert mode is quicker to go through for an experienced user. Output results visualization is done within the WIPL-D environment, including 2D and 3D graphs.

Applications of Time Domain Solver include but are not limited to:

  • Design and analysis of ultra-wide band (UWB) antennas
  • Electromagnetic compatibility (EMC) problems
  • Electromagnetic interference (EMI) problems
  • Electromagnetic pulse (EMP) investigations
  • Cross-talk analysis and signal integrity

Because of its user-friendly interface, automation, time-efficiency, and great flexibility, Time Domain Solver is an indispensable assistant for 3D antenna and EMC engineers.

Benefits & Features

  • User-friendly GUI with wizard (fast learning curve) and expert modes,
  • Predefined excitation waveforms: Gaussian pulse, Gaussian monocycle, rectangular and exponential pulses, and sinusoidal wave,
  • User-defined excitation waveform,
  • Seamless integration into WIPL-D Pro - frequency domain simulation is automatically performed as needed for the calculation of time response,
  • Output results visualization within WIPL-D environment (tables and graphs of network parameters, current distribution, far fields, near fields,...).


Impulse radiating antenna excited by a Gaussian monocycle.