RKF Engineering has developed 3D simulation tools which model dynamic multipath channels. These tools enable the simulation and evaluation of satellite and terrestrial user terminal and vehicular antenna patterns. The simulation tools model custom multipath environments, including parameters such as user elevation and azimuth angle to a satellite or terrestrial base station, natural human motion, electromagnetic reflections off the grounds and structures of variable materials, body losses, user speed, and more. In addition, RKF's custom tools can be interfaced to quantify the Quality of Service expected from a particular measured or modeled antenna pattern.
3D ray-tracing multipath tools, such as the ones developed at RKF, also enable terrestrial and satellite companies to calculate the capacity of their wireless network. By choosing a desired/current antenna pattern, the tools simulate users in a variety of environments, thus calculating the required transmit power to maintain a certain Quality of Service - possibly quantified by Frame Error Rate. Thus, such tools allow trading off antenna designs based on realistic fading environments. In addition, the tools are useful prior to conducting handset field tests since users are allowed to set the reflective parameters pertinent to the location of the particular field test.