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WIPL-D Pro 9.0
WIPL-D Pro 9.0 provides significant benefits in simulation speed on
multi-core computers and graphics processing units (GPU), modeling productivity and convergence control.
The main new features:
Improvements of old features:
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More interactive Preview window: zoom, selection, creation, deletion, ...,
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Direct creation and editing of models from the improved Structure Tree,
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Improved algorithms for meshing of large plates and edging, which result in shorter simulation time and memory requirements,
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Improved tables that enable the fastest numerical editing of structures so far,
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Naming of domains and objects for better orientation while modeling,
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Efficient interpolation of radiation pattern,
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More possibilities for manipulation of results: improved markers and graphs, group operations, customization of up to 2000 ports, ...
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Field Generators Option
In v9.0 it is possible to excite the structure with either analytically defined or imported radiation patterns. Individual radiation pattern is defined, and array of such radiation patterns is defined afterwards. It can be a grid or custom pattern defined in a separate file. Using the commands provided in the window where the field generators excitation is defined, the radiation pattern(s) can be rotated and moved, and their magnitudes and phase can also be defined in various ways.
Many applications of this new option can be found. One of the most important is analysis of radomes using only the radiation pattern of a radiating structure without the need to model the radiating structure itself. Simulation of a radome covering an 8x8 array is shown in the pictures below.
GPU Solver
Learn more about this powerful tool that allows up to 40 times acceleration when simulating large structures.
Asymmetric Excitation of Symmetric Structures
This option, which is provided started from WIPL-D v9.0, enables efficient
electromagnetic (EM) modeling of symmetric structures with at least one and
maximum three symmetry planes when asymmetric excitation is applied. That
efficiency refers to significant reduction of the number of unknowns and time
needed to perform the analysis. In cases where the number of unknowns is very
high and where the matrix inversion time is dominant comparing to the matrix
fill-in time it is possible to accelerate the analysis 4, 8 or 64 times, depending on
the number of symmetry planes of the structure.
Symmetry plane divides structure into two equal, symmetric parts. Algorithm
is based on making additional projects with modeling of just parts of a structure,
depending on the number of symmetry planes. So, if there is a structure with one
symmetry plane, only one half of the structure is made, if there are two symmetry
planes, a quarter of the structure is made and if there are three symmetry planes,
one eight of the structure is made. Symmetry planes which are used are PEC
(Perfect Electric Conductor) and PMC (Perfect Magnetic Conductor). Also, it is
needed to make as many additional projects as there are all combinations of all
symmetry planes where each plane can be PEC or PMC. For structures with one
plane of symmetry there are two additional projects with PEC and PMC
symmetry plane, if there are two symmetry planes four additional projects need to
be made, with PEC/PEC, PEC/PMC, PMC/PEC and PMC/PMC symmetry planes respectively and if structure has three symmetry planes it is needed to consider
eight additional projects.
Using information from these additional projects and from symmetry,
antennas and scattering characteristics are efficiently calculated. The appropriate
linear combination of responses (near and far field) of all additional projects
enables efficient calculation of near and far field due to effect of an arbitrary
excitation. Also, Y,Z,S parameters are calculated based on Y,Z,S parameters of
the additional projects. By modeling of just a part of the structure, number of
unknowns is reduced two, four or eight times which means that time needed to
perform the analysis is greatly reduced as well as necessary memory resources.
An example of cube scatterer is shown below.
New Output Results
Group Delay
Group delay option is introduced in WIPL-D Pro, starting from v9.0. Group
delay is calculated as a negative derivative of phase versus frequency.
The three images below show, respectively, magnitude, phase and group delay of S21 parameter of a band-pass filter.
Quasi Static Potential
Calculating of quasi-static potential is a new feature in WIPL-D Pro, starting
from v9.0. Such an option can be very useful, especially in the case of 2D
problems, when EM field in the cross section is quasi static.
Quasi-static potential is calculated directly in the WIPL-D graph window
from the near-field data. Thus, the near-field data must be calculated firstly.
The example below shows a model of cylinder with four cylinders in the middle (only half of the model is shown). The cylinders in the middle are charged and there is a difference in potential between them and the outer cylinder. Structure of the model, near-field graph and quasi static potential graph are shown in the following images, respectively.
Layering via Copy Manipulation
Copy manipulation is further enhanced in v9. This manipulation now enables
creating layers equidistant to the original structure, as well as changing domain
definition on parts of the structure.
Possibilities that this option offers are shown in the example below. At first, a simple coaxial feeder is made with infinitesimally small thickness of both conductors. This new option enables almost instant creation of thickness or coating to the outer conductor, like it is shown in the images below.
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