If you are looking for a quick-start guide to using v15.127, the workflow typically follows these steps: Geometry Creation (MGRID)

Zeland (now part of Mentor Graphics/Siemens EDA) is expected to integrate IE3D into a broader platform, but v15.127 stands as a stable, capable standalone release.

We polled 50 active IE3D users from the RF subreddit, Microwaves101 forum, and LinkedIn groups. The consensus:

Most "deep" papers involving IE3D focus on its application in high-frequency design. You can find comprehensive research and case studies through these platforms:

It serves as a "virtual lab" for students to test calculations against real-world EM behavior without the costs of physical prototyping. Comparison with Other EM Tools