EM3DS 9.0

      What's new in EM3DS 2007:

available since 8:

Version 8 is a new great step forward for EM3DS, now featuring:
 
·    Magnetic walls: top and bottom cover may be magnetic wall (namely tangential H vanishing); by the same token two of the 4 side walls may be magnetic

·    Symmetry wizard: magnetic walls may be used to simulate half a symmetric structure, so saving large amount of time. When there are ports, by replacing -in a two-step procedure- the symmetry plane by means of a magnetic and then an electric wall, the response of the whole device may be obtained by suitably superimposing the two half-structures, each one featuring one half of the total number of ports. The " symmetry wizard" is a simple post-processor generating the correct superposition of the two simulations, recreating the full-port solution.

·    Batch planner: it allows creating a queue of simulations/optimizations to be automatically ran and saved

·    Differential ports: a new post-processor allows to renumber ports, connect ports together (and creation of response to "even" excitations), evaluate the differential (balanced, or odd) response of the circuit etc.

·    Enhanced editor: now you can select multiple objects and change their properties all at once (resistivity, mesh, move by arrows etc). Each layer can be labeled (e.g. "Gallium Arsenide" "copper" etc) so that it becomes easier to identify the layer being edited. Ports can be selected by mouse, edited, deleted etc. Charts can be zoomed, panned etc.

·    Enhanced mesh: new options allow greater flexibility to control mesh, in particular for non-Manhattan objects

·    License server as service: now license manager can either work as a program or as a standard Windows service, running in background.

·    Parameters: layers may have parametric materials, even when no frequency dependence is required.

·    Measurements: the fraction of power lost in a component is now evaluated, and plotted in standard chart; charts can be zoomed/panned etc.

available since 7:

EM3DS includes parametric geometry: the user can use variables to define position and size of the entered objects. This way, optimizing a design becomes straightforward, with no need to re-edit the entire structure. Additionally, the automatic embedded optimizer can do the work for you. A new algorithm,  SmartFIT, allows to evaluate only a few frequency points within a given band, and to extract the complete response. The pre-processor and the GUI has been enhanced, simplifying the user-interaction, while the post-processor includes several new functions. For example, a rational interpolation of both internal or external data sets, or new graphics to see directly the currents (either as scalar or vector plot) over the 3D view. A new Spice Model Extractor allows to extract a lumped element circuit reproducing the EM response, regardless of the electrical length of the EM circuit. Licenses are now floating by default, namely you can run EM3DS from whatever computer in your network exploiting the same license.

It is worth to remember that already in version 6 EM3DS featured a number of unique abilities:

Since ver 6.3 EM3Ds embodies in fact two EM solvers-2.5D & 3D. Which solver to use is rested upon the designers choice and it is a simple click to shift the mode of operation. The speed is increased in 2.5D mode by a factor varying from 50% up to more than 300%.
Version 6.3 in particular adds attracting features, such as the ability to attach ports to any polygon and to calibrate at the port plane: results are always available in three forms, namely Raw (uncalibrated), calibrated at the reference plane and calibrated at the port plane! Characteristic impedance for coupled lines is now evaluated.
Additionally advanced editor features have been added (e.g. zoom area).
EM3DS has, since ver 6.2, the ability to be accessed directly from the AWR Microwave Office suite. Currently ver 6.3 goes forward by implementing the so called "persistency": modifications by EM3DS are saved directly into the MWOffice project. This means that AWR's customers are able to see EM3DS as an electromagnetic engine, still using Microwave Office editor and post processing capabilities.
 The first EM software including modeling of piezo-electric bulk acoustic wave resonators (FBAR; coupled EM/acoustic modeling)