Explore free or open-source software alternatives. These can often provide similar functionalities without the cost. For RF simulation, tools like HFSS (from ANSYS), CST Microwave Studio, or even some open-source projects, might serve as viable alternatives.
There is no legitimate "patched" or "cracked" version of COPRA RF provided by its official developer, data M Sheet Metal Solutions Overview of COPRA RF copra rf download crack patched