IE3DTM and FidelityTM are electromagnetic simulation tools. IE3D is a full wave, method of moments (MOM) simulator which solves the current distribution in 3D and multi-layered structures of general shape. FIDELITY is a full-wave non-uniform finite-difference time-domain (FDTD) simulator which solves for the near field in structures with complicated dielectrics. For detailed descriptions visit the Zeland web site. Take a look at IE3D and Fidelity if you are a circuit designer, antenna designer or research scientist, looking for accurate, efficient, flexible and economical simulation software tools, and you are interested in any of the following: Microstrip • CPW • striplines • suspended-strip lines • coaxial Lines • rectangular waveguides • high speed digital transmission lines • 3D interconnects • PCB • MCM • HTS circuits and filters • EMC/EMI • wire antennas • microstrip antennas • conical and cylindrical helix antennas • inverted antennas • antennas on finite ground planes • other RF antennas