prerecorded CDs featuring run modules of electromagnetic Computer Aided Design software CDs featuring installation software for the run modules to be used on PCs or workstations; multifunction software programs for use by engineers for carrying out rigorous Computer Aided Design and optimization of circuits, components, networks and antennas in the areas of communications engineering, microwave techniques, Millimeterwave techniques, antennas, communication theory, electronmagnetic compatibility, Very Large Scale Integration structures; computer software for use in the electromagnetic analysis of components, circuits, networks and the computer-aided design of components circuits and communication networks; computer software used in the fields of radio frequency engineering, microwave engineering, Extremely High Frequency engineering, optoelectronics and electromagnetic compatibility with technical applications in communications, satellite communications and mobile communications; computer software for use in the analysis and computer aided design of antennas in the field of slot, waveguide, micros trip antennas and arrays as well as aperture, horn, wire and reflector antennas