Product Announcement from Remcom (USA)


XGtd - High Frequency EM Analysis Software-Image

XGtd is a general purpose ray-based electromagnetic analysis tool for assessing the effects of a vehicle or vessel on antenna radiation, estimating radar cross section (RCS), and predicting coupling between antennas. Based on techniques such as Geometric Optics (GO), the Uniform Theory of Diffraction (UTD), Physical Optics (PO), and the Method of Equivalent Currents (MEC), performance and memory requirements are less dependent on the electrical size of objects than full wave methods. This makes it ideally suited for applications with higher frequencies or very large platforms where requirements of a full physics method, such as Finite Difference Time Domain (FDTD), may exceed available computational resources.

XGtd also includes a number of capabilities that extend well beyond standard ray-tracing codes to provide high-fidelity outputs that are tailored to its intended applications, including the following:

  • Far Zone Antenna Radiation for surface-mounted antennas
  • Monostatic or bistatic Radar Cross Section (RCS)
  • Creeping Wave Diffraction: high-fidelity field prediction in shadow zones
  • Doppler for moving transmitters and receivers
  • Coupling between antennas (equivalent to S-parameters)
  • Wide range of outputs for predicted EM fields and channel characteristics

The latest release of XGtd includes new functionality for radar cross section (RCS) applications.  Highlights include:

  • New, more accurate model for RCS analysis based on Physical Optics (PO) and the Method of Equivalent Currents (MEC)
  • New output types for far zone RCS and antenna gain field points
  • Ray path visualization to far zone field points
  • Visualization of edges considered by the calculation to be part of curved surfaces
 
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