WIPL-D Pro CAD is the tool that introduced solid modeling into WIPL-D, allowing fast modeling and manipulation for a wide range of EM applications. The simulation itself relies on WIPL-D’s proven and powerful kernel. Import of various CAD formats, numerous built-in modelling primitives, Boolean operations, waveguide ports, and automated simulation‑optimized all-quad mesh are features turning WIPL-D Pro CAD into a full, powerful package for high-complexity modeling of EM problems.
Check our video tutorials to find out how to use WIPL-D Pro CAD.
WIPL-D Pro CAD makes it possible to build complex structures with little effort. Easy coordinate system switching and alignment allows users to make almost every part of the structure locally with literally a few clicks. With numerous curves, surface bodies and solids as built-in primitives, building models in WIPL-D has never been easier and faster. Easy-to-use inspection tools make sure that the user can verify at any moment that model components are exactly the way they should be.
A tremendously important benefit of using WIPL-D Pro CAD is projects feeding. A model can be fed by different excitations such as delta generators, TEM frill generators, uniform plane waves, far field sources, current sources and waveguide ports. The most innovative concept is the use of various waveguide ports. Currently supported technologies are Waveguide (Rectangular, Circular and Coaxial) and Microstrip ports. The waveguide ports define reference planes of waveguide or microstrip feed line excitations. Similar to the mechanism of waveguide ports, it is possible to define waveguide/microstrip loads (the user can choose among an open, a short or a matched load).
Import of Various CAD Formats
Most popular CAD formats, such as IGES, STEP, CATIA and many other are available for import/export with WIPL-D Pro CAD. In many cases, modeling of antenna placement, scattering and other EM problems is done in popular mechanical CAD tools, especially when EM simulation includes real-life aircrafts, ships, cars and other platforms carrying the EM devices.
Powerful modification tools take care of adjusting the imported model, turning it into an optimum simulation-ready EM model. Repair tools let users quickly remove unnecessary details that would slow down the simulation.
The simulation of antenna placement becomes particularly easy with WIPL-D Pro CAD. The platform (for placing the antenna) is quickly imported. The antenna is modeled (or an existing one is imported) and placed on the platform in a very short time owing to Boolean operations. After that, the powerful in-house mesher converts the project to a simulation‑ready meshed file and lets the computing engine do the heavy work.
Most EM problems do not require user intervention, because the automatic mesh with default parameters will do an excellent job. Users optimizing simulation speed by minimizing the number of mesh elements and unknowns, will rely on User Controlled meshing. It offers several powerful algorithms that can handle any model if configured properly.
The meshing algorithm is specially tailored to meet the following requirements:
- Generation of a well-connected all-quad mesh
- Accurate representation of model’s geometry
- Utilization of all benefits of HOBFs
- Exploiting the possibility of combining different orders of current approximation over the two axes of the same mesh element
- Maximizing the shape quality factor of mesh elements which reduces the number of unknowns while increasing simulation accuracy
The WIPL-D team took special care to make the complex process of meshing as user-friendly as possible. Mesh control is narrowed down to only a couple of parameters which, with a little help from the User’s Manual, become very intuitive and easy to use. Pre-simulation mesh lets users inspect the meshed model before it goes into simulation and fix parts they are not satisfied with by setting numerous Local Mesh Parameters.
Integration with WIPL-D Pro
All advantages of WIPL-D Pro are incorporated into WIPL-D Pro CAD. One can still define the model symbolically, take advantage of the symmetry, manually adjust orders of approximation on chosen model parts etc.
The main difference is the modeling approach. WIPL-D Pro requires surface modeling, where the user directly builds meshed projects. Numerous already-meshed primitives are available as building blocks. WIPL-D Pro CAD allows building the structure by using solids, upon which Boolean operations can be applied. At the end, the final geometry is meshed automatically.
Basically, a single click on the Run button in WIPL-D Pro CAD performs the entire process of meshing the model, converting it into WIPL-D’s native format (IWP) and employing the powerful higher-order-basis-functions-based kernel, which has been the most proven benefit of WIPL-D Pro for decades.
The greatest advantage is the possibility to define even complex geometry in a few clicks or via importing CAD files. The automated mesh yields simulation-ready models with the default parameters, allowing users to directly adjust mesh on model parts which are either important or irrelevant for EM simulation. A hybrid approach is possible. Users who have been building parametrically defined models for decades in the classic WIPL-D Pro editor can use WIPL-D Pro CAD to mount their antennas on real-life complex platforms such as aircrafts. Existing WIPL-D Pro meshed models can be imported into WIPL-D Pro CAD immediately being ready-to-run. Numerous opportunities to combine the benefits of the two tools are available.