public void Grid()
{
double maxRes = 1.0;
double maxRatio = 1.5;
List <double> mesh;
List <double> smoothMesh;
List <string> referenceMesh;
// #1
mesh = new List <double> {
0, 3
};
smoothMesh = RectilinearGrid.SmoothLines(mesh, maxRes, maxRatio);
referenceMesh = new List <string> {
"0.00", "1.00", "2.00", "3.00"
};
//Console.Write("Original mesh: ");
//Console.WriteLine(String.Join(", ", mesh.Select(i => String.Format("{0:f2}", i)).ToArray()));
Assert.True(CompareGrid(referenceMesh, smoothMesh));
Console.WriteLine();
// #2
mesh = new List <double> {
0, 0.01, 3
};
smoothMesh = RectilinearGrid.SmoothLines(mesh, maxRes, maxRatio);
referenceMesh = new List <string> {
"0.00", "0.01", "0.03", "0.05", "0.08", "0.13", "0.21", "0.32",
"0.49", "0.75", "1.13", "1.71", "2.35", "3.00"
};
//Console.Write("Original mesh: ");
//Console.WriteLine(String.Join(", ", mesh.Select(i => String.Format("{0:f2}", i)).ToArray()));
Assert.True(CompareGrid(referenceMesh, smoothMesh));
/*
* Console.WriteLine();
*
* mesh = new List<double> { 0, 0.01, 2.99, 3 };
* smoothMesh = RectilinearGrid.SmoothLines(mesh, maxRes, maxRatio);
* referenceMesh = new List<string> {
* "0.00", "0.01", "0.03", "0.05", "0.08", "0.13", "0.21", "0.32",
* "0.49", "0.75", "0.94", "1.12", "1.31", "1.87", "2.25", "2.51",
* "2.68", "2.79", "2.87", "2.92", "2.95", "2.98", "2.99", "3.00" };
*
* Console.WriteLine("maxRes = {0} ratio = {1}", maxRes, maxRatio);
* Console.WriteLine("Original mesh:");
* Console.WriteLine(String.Join(", ", mesh.Select(i => String.Format("{0:f2}", i)).ToArray()));
*
* Assert.True(CompareGrid(referenceMesh, smoothMesh));
*/
}
static void ExportAntenna_Small_15x6mm()
{
double thickness = 0.01;
double airBox = 5.0;
double innerResolution = 0.5;
double outerResolution = 5.0;
var antenna = new CSXCAD.Antenna.Small_15x6mm_2400MHz(thickness);
const double pcbThickness = 1.5;
var lumpedPort = new LumpedPort(90, 1, 50, new Vector3D(0.0, 0.0, -pcbThickness), new Vector3D(0.0, 0.0, 0), ENormDir.Z, true);
antenna.Add(lumpedPort);
double margin = 2.0;
double groundWidth = 5.0;
var p1 = new Vector3D(antenna.BoundingBox.P1.x - margin, -groundWidth - margin, -pcbThickness);
var p2 = new Vector3D(antenna.BoundingBox.P2.x + margin, antenna.BoundingBox.P2.y + margin, 0);
double epsRel = 4.88;
var substrate = new Dielectric("pcb", epsRel, 1e-3 * 2 * Math.PI * 2.45e9 * epsRel * Material.Eps0);
substrate.EdgeColor = new Material.Color(10, 255, 10, 128);
substrate.FillColor = new Material.Color(10, 255, 10, 128);
var pcb = new CSXCAD.Box(null, substrate, 60, p1, p2);
antenna.Add(pcb);
var bottomGround = new Metal("bottom-ground");
bottomGround.EdgeColor = new Material.Color(235, 148, 7, 255);
bottomGround.FillColor = bottomGround.EdgeColor;
var bottomGroundPlane = new CSXCAD.Box(null, bottomGround, 100,
new Vector3D(antenna.BoundingBox.P1.x - antenna.D1, antenna.D4 / 2, -pcbThickness),
new Vector3D(antenna.BoundingBox.P2.x + antenna.D3, -groundWidth, -pcbThickness - 0.01));
antenna.Add(bottomGroundPlane);
var topGround = new Metal("top-ground");
topGround.EdgeColor = new Material.Color(235, 148, 7, 255);
topGround.FillColor = topGround.EdgeColor;
var topGroundPlane = new CSXCAD.Box(null, topGround, 100,
new Vector3D(antenna.BoundingBox.P1.x - antenna.D1, -antenna.D4 / 2, 0),
new Vector3D(antenna.BoundingBox.P2.x + antenna.D3, -groundWidth, 0.01));
antenna.Add(topGroundPlane);
var viaMetal = new Metal("via");
viaMetal.EdgeColor = new Material.Color(235, 148, 7, 255);
viaMetal.FillColor = viaMetal.EdgeColor;
var via = new Cylinder(null, viaMetal, 100,
new Vector3D(-(antenna.W1 / 2 + antenna.D5 + antenna.W2 / 2), 0, -pcbThickness),
new Vector3D(-(antenna.W1 / 2 + antenna.D5 + antenna.W2 / 2), 0, 0),
0.25);
antenna.Add(via);
Simulation fdtd = new Simulation();
fdtd.Excitation = new GaussExcitation(2450e6, 500e6);
RectilinearGrid grid = new RectilinearGrid();;
grid.Add(new Vector3D(0, 0, 0));
grid.Add(pcb.P1);
grid.Add(pcb.P2);
/*
* foreach (var v in antenna.antennaPoly)
* {
* grid.Add(new Vector3D(v.x, v.y, 0));
* }
*/
grid.SmoothMesh(innerResolution);
grid.AddAirbox(airBox);
grid.SmoothMesh(outerResolution);
var nf2ff = new NF2FFBox("nf2ff",
new Vector3D(grid.XLines.First(), grid.YLines.First(), grid.ZLines.First()),
new Vector3D(grid.XLines.Last(), grid.YLines.Last(), grid.ZLines.Last()));
antenna.Add(nf2ff);
grid.AddPML(8);
XDocument doc = new XDocument(
new XDeclaration("1.0", "utf-8", "yes"),
new XComment("Test XML file for CyPhy generated openEMS simulations"),
new XElement("openEMS",
fdtd.ToXElement(),
new XElement("ContinuousStructure",
new XAttribute("CoordSystem", 0),
antenna.ToXElement(),
grid.ToXElement()
)
)
);
doc.Save("Small_15x6mm.xml");
}
static void ExportAntenna_InvertedF()
{
double thickness = 0.01;
double airBox = 5.0;
double innerResolution = 0.5;
double outerResolution = 5.0;
var antenna = new CSXCAD.Antenna.InvertedF_2400MHz(thickness);
const double pcbThickness = 1.5;
var lumpedPort = new LumpedPort(90, 1, 50, new Vector3D(0.0, 0.0, -pcbThickness), new Vector3D(0.0, 0.0, 0), ENormDir.Z, true);
antenna.Add(lumpedPort);
double margin = 2.0;
double groundWidth = 5.0;
var p1 = new Vector3D(antenna.BoundingBox.P1.x - margin, -groundWidth - margin, -pcbThickness);
var p2 = new Vector3D(antenna.BoundingBox.P2.x + margin, antenna.BoundingBox.P2.y + margin, 0);
var substrate = new Dielectric("pcb", 3.38, 1e-3 * 2 * Math.PI * 2.45e9 * 3.38 * Material.Eps0);
substrate.EdgeColor = new Material.Color(10, 255, 10, 128);
substrate.FillColor = new Material.Color(10, 255, 10, 128);
var pcb = new CSXCAD.Box(null, substrate, 60, p1, p2);
//antenna.Add(pcb);
var topGround = new Metal("bottom-ground");
topGround.EdgeColor = new Material.Color(235, 148, 7, 255);
topGround.FillColor = topGround.EdgeColor;
var topGroundPlane = new CSXCAD.Box(null, topGround, 100,
new Vector3D(antenna.BoundingBox.P1.x, 0, -pcbThickness),
new Vector3D(antenna.BoundingBox.P2.x, -groundWidth, -pcbThickness));
antenna.Add(topGroundPlane);
var bottomGround = new Metal("top-ground");
bottomGround.EdgeColor = new Material.Color(235, 148, 7, 255);
bottomGround.FillColor = bottomGround.EdgeColor;
var topGroundPlaneLeft = new CSXCAD.Box(null, bottomGround, 100,
new Vector3D(antenna.BoundingBox.P1.x, 0, 0),
new Vector3D(-0.46 / 2 - 0.45, -groundWidth, 0));
var topGroundPlaneRight = new CSXCAD.Box(null, bottomGround, 100,
new Vector3D(0.46 / 2 + 0.45, 0, 0),
new Vector3D(antenna.BoundingBox.P2.x, -groundWidth, 0));
antenna.Add(topGroundPlaneLeft);
antenna.Add(topGroundPlaneRight);
Simulation fdtd = new Simulation();
fdtd.Excitation = new GaussExcitation(2450e6, 500e6);
RectilinearGrid grid = new RectilinearGrid();;
grid.Add(new Vector3D(0, 0, 0));
grid.SmoothMesh(innerResolution);
grid.AddAirbox(airBox);
grid.SmoothMesh(outerResolution);
var nf2ff = new NF2FFBox("nf2ff",
new Vector3D(grid.XLines.First(), grid.YLines.First(), grid.ZLines.First()),
new Vector3D(grid.XLines.Last(), grid.YLines.Last(), grid.ZLines.Last()));
antenna.Add(nf2ff);
grid.AddPML(8);
XDocument doc = new XDocument(
new XDeclaration("1.0", "utf-8", "yes"),
new XComment("Test XML file for CyPhy generated openEMS simulations"),
new XElement("openEMS",
fdtd.ToXElement(),
new XElement("ContinuousStructure",
new XAttribute("CoordSystem", 0),
antenna.ToXElement(),
grid.ToXElement()
)
)
);
doc.Save("InvertedF.xml");
}
static void TestGrid()
{
double maxRes;
double ratio;
List <double> mesh;
List <double> smoothMesh;
List <string> referenceMesh;
// #1
maxRes = 1;
ratio = 1.5;
mesh = new List <double> {
0, 3
};
smoothMesh = RectilinearGrid.SmoothLines(mesh, maxRes, ratio);
referenceMesh = new List <string> {
"0.00", "1.00", "2.00", "3.00"
};
Console.WriteLine("maxRes = {0} ratio = {1}", maxRes, ratio);
Console.WriteLine("Original mesh:");
Console.WriteLine(String.Join(", ", mesh.Select(i => String.Format("{0:f2}", i)).ToArray()));
EvalGridTest(smoothMesh, referenceMesh);
Console.WriteLine();
// #2
mesh = new List <double> {
0, 0.01, 3
};
smoothMesh = RectilinearGrid.SmoothLines(mesh, maxRes, ratio);
referenceMesh = new List <string> {
"0.00", "0.01", "0.03", "0.05", "0.08", "0.13", "0.21", "0.32",
"0.49", "0.75", "1.13", "1.71", "2.35", "3.00"
};
Console.WriteLine("maxRes = {0} ratio = {1}", maxRes, ratio);
Console.WriteLine("Original mesh:");
Console.WriteLine(String.Join(", ", mesh.Select(i => String.Format("{0:f2}", i)).ToArray()));
EvalGridTest(smoothMesh, referenceMesh);
Console.WriteLine();
maxRes = 1;
ratio = 1.5;
mesh = new List <double> {
0, 0.01, 2.99, 3
};
smoothMesh = RectilinearGrid.SmoothLines(mesh, maxRes, ratio);
referenceMesh = new List <string> {
"0.00", "0.01", "0.03", "0.05", "0.08", "0.13", "0.21", "0.32",
"0.49", "0.75", "0.94", "1.12", "1.31", "1.87", "2.25", "2.51",
"2.68", "2.79", "2.87", "2.92", "2.95", "2.98", "2.99", "3.00"
};
Console.WriteLine("maxRes = {0} ratio = {1}", maxRes, ratio);
Console.WriteLine("Original mesh:");
Console.WriteLine(String.Join(", ", mesh.Select(i => String.Format("{0:f2}", i)).ToArray()));
EvalGridTest(smoothMesh, referenceMesh);
}
private XDocument BuildDipoleSarXml()
{
double unit = 1e-3;
double f0 = 1e9;
double c0 = 299792458.0;
double lambda0 = c0 / f0;
double fStop = 1.5e9;
double lambdaMin = c0 / fStop;
// Simulation engine
Simulation fdtd = new Simulation();
fdtd.Excitation = new GaussExcitation(0, fStop); // possible typo in Dipole_SAR.xml
// Simulation space
Compound s = new Compound("space");
// Dipole antenna
double dipoleLength = 0.46 * lambda0 / unit;
s.Add(new Box(null, new Metal("Dipole"), 1,
new Vector3D(0, 0, -dipoleLength / 2), new Vector3D(0, 0, dipoleLength / 2)));
// Phantom
Compound headPhantom = new Compound("head-phantom");
Dielectric skinMaterial = new Dielectric("skin", 50, kappa: 0.65, density: 1100);
skinMaterial.FillColor = new Material.Color(245, 215, 205, 250);
skinMaterial.EdgeColor = new Material.Color(255, 235, 217, 250);
Sphere skin = new Sphere(null, skinMaterial, 11, new Vector3D(), 1);
skin.Transformations.Add(new TScale(80, 100, 100));
headPhantom.Add(skin);
Dielectric boneMaterial = new Dielectric("headbone", 13, kappa: 0.1, density: 2000);
boneMaterial.FillColor = new Material.Color(227, 227, 227, 250);
boneMaterial.EdgeColor = new Material.Color(202, 202, 202, 250);
Sphere bone = new Sphere(null, boneMaterial, 12, new Vector3D(), 1);
bone.Transformations.Add(new TScale(75, 95, 95));
headPhantom.Add(bone);
Dielectric brainMaterial = new Dielectric("brain", 60, kappa: 0.7, density: 1040);
brainMaterial.FillColor = new Material.Color(255, 85, 127, 250);
brainMaterial.EdgeColor = new Material.Color(71, 222, 179, 250);
Sphere brain = new Sphere(null, brainMaterial, 13, new Vector3D(), 1);
brain.Transformations.Add(new TScale(65, 85, 85));
headPhantom.Add(brain);
headPhantom.Transformations.Add(new TTranslate(100, 0, 0));
s.Add(headPhantom);
// Excitation
double meshResAir = lambdaMin / 20 / unit;
double meshResPhantom = 2.5;
LumpedPort lp = new LumpedPort(100, 1, 50.0,
new Vector3D(-0.1, -0.1, -meshResPhantom / 2),
new Vector3D(+0.1, +0.1, +meshResPhantom / 2), ENormDir.Z, true);
s.Add(lp);
// Grid
RectilinearGrid g = new RectilinearGrid();
g.XLines.Add(0);
g.YLines.Add(0);
foreach (double z in new double[] { -1.0 / 3, 2.0 / 3 })
{
g.ZLines.Add(-dipoleLength / 2 - meshResPhantom * z);
g.ZLines.Add(+dipoleLength / 2 + meshResPhantom * z);
}
foreach (Sphere sp in new Sphere[] { skin, bone, brain })
{
g.XLines.Add(sp.AbsoluteTransformation.Matrix[0, 3] + sp.AbsoluteTransformation.Matrix[0, 0]);
g.XLines.Add(sp.AbsoluteTransformation.Matrix[0, 3] - sp.AbsoluteTransformation.Matrix[0, 0]);
g.YLines.Add(sp.AbsoluteTransformation.Matrix[1, 3] + sp.AbsoluteTransformation.Matrix[1, 1]);
g.YLines.Add(sp.AbsoluteTransformation.Matrix[1, 3] - sp.AbsoluteTransformation.Matrix[1, 1]);
g.ZLines.Add(sp.AbsoluteTransformation.Matrix[2, 3] + sp.AbsoluteTransformation.Matrix[2, 2]);
g.ZLines.Add(sp.AbsoluteTransformation.Matrix[2, 3] - sp.AbsoluteTransformation.Matrix[2, 2]);
}
g.ZLines.Add(-meshResPhantom / 2); // port
g.ZLines.Add(+meshResPhantom / 2);
// Mesh over dipole and phantom
g.SmoothMesh(meshResPhantom);
g.XLines.Add(-200);
g.XLines.Add(250 + 100);
g.YLines.Add(-250);
g.YLines.Add(+250);
g.ZLines.Add(-250);
g.ZLines.Add(+250);
g.SmoothMesh(meshResAir, 1.2);
s.Add(new SARBox("SAR", f0, new Vector3D(-10, -100, -100), new Vector3D(180, 100, 100)));
s.Add(new NF2FFBox("nf2ff",
new Vector3D(g.XLines.First(), g.YLines.First(), g.ZLines.First()),
new Vector3D(g.XLines.Last(), g.YLines.Last(), g.ZLines.Last()),
lambdaMin / 15 / unit));
g.AddPML(10);
g.XLines.Sort();
g.YLines.Sort();
g.ZLines.Sort();
// Export
return(new XDocument(
new XDeclaration("1.0", "utf-8", "yes"),
new XComment("Test XML file for CyPhy generated openEMS simulations"),
new XElement("openEMS",
fdtd.ToXElement(),
new XElement("ContinuousStructure",
new XAttribute("CoordSystem", 0),
s.ToXElement(),
g.ToXElement()
)
)
));
}
private void GenerateDirectivitySimulationInput()
{
// Constants
double unit = 1e-3;
double c0 = 299792458.0;
double lambda0 = c0 / m_f0;
double lambdaMin = c0 / (m_f0 + m_fc);
Compound simulationSpace = new Compound("space");
Compound solidSpace = new Compound("solid-space");
simulationSpace.Add(solidSpace);
Compound dut;
if (m_excludeEndo == true)
{
dut = m_endo.GetModule(m_slotIndex);
}
else
{
dut = m_endo;
}
solidSpace.Add(dut); // modifies dut parent (!)
// Set up simulation grid, nf2ff and SAR
Logger.WriteInfo("Constructing FDTD simulation grid...");
double airBox = 40;
double maxRes = Math.Round(lambdaMin / 20 / unit);
double maxRatio = 1.5;
RectilinearGrid grid = new RectilinearGrid();
grid.Add(dut.BoundingBox.P1);
grid.Add(dut.BoundingBox.P2);
#region openems_workaround
// openEMS v0.0.31 seems to handle transformations on excitation (lumped port),
// SAR and NF2FF simulation components incorrectly.
// Applied workarounds:
// 1. The entire design is moved so that the antenna feedpoint is in the origin
// 2. The SAR and NF2FF boxes are added late, w/o transformations
Vector3D antennaPosition = new Vector3D(
m_antenna.AbsoluteTransformation.X,
m_antenna.AbsoluteTransformation.Y,
m_antenna.AbsoluteTransformation.Z);
solidSpace.Transformations.Add(new TTranslate(-antennaPosition));
grid.Move(-antennaPosition);
grid.Add(new Vector3D(0, 0, 0));
grid.ZLines.Add(-(m_antenna.Parent as CSXCAD.Ara.PCB).Thickness);
grid.Sort();
grid.SmoothMesh(m_dutResolution, maxRatio);
grid.AddAirbox(airBox);
grid.SmoothMesh(maxRes, maxRatio);
simulationSpace.Add(new NF2FFBox("nf2ff",
new Vector3D(grid.XLines.First(), grid.YLines.First(), grid.ZLines.First()),
new Vector3D(grid.XLines.Last(), grid.YLines.Last(), grid.ZLines.Last()),
lambdaMin / 15 / unit));
#endregion
grid.AddPML(8);
Simulation fdtd = new Simulation();
fdtd.Excitation = new GaussExcitation(m_f0, m_fc);
// Export
XDocument doc = new XDocument(
new XDeclaration("1.0", "utf-8", "yes"),
new XComment("CyPhy generated openEMS simulation file"),
new XElement("openEMS",
fdtd.ToXElement(),
new XElement("ContinuousStructure",
new XAttribute("CoordSystem", 0),
simulationSpace.ToXElement(),
grid.ToXElement()
)
)
);
if (dut is CSXCAD.Ara.Module)
{
dut.Parent = m_endo;
}
string openEmsInput = Path.Combine(mainParameters.OutputDirectory, "openEMS_input.xml");
doc.Save(openEmsInput);
string nf2ffInput = Path.Combine(mainParameters.OutputDirectory, "nf2ff_input.xml");
var nf2ff = new Postprocess.NF2FF(m_f0);
nf2ff.ToXDocument().Save(nf2ffInput);
}
public void GenerateFarFieldSimulationInput(string outputDirectory)
{
Compound simulationSpace = new Compound("space");
Compound solidSpace = new Compound("solid-space");
simulationSpace.Add(solidSpace);
Compound dut;
if (excludeEndo == true)
{
dut = endo.GetModule(slotIndex);
}
else
{
dut = endo;
}
solidSpace.Add(dut); // modifies dut parent (!)
double airBox = 40;
double maxRes = Math.Round(lambdaMin / 20 / unit);
double maxRatio = 1.5;
RectilinearGrid grid = new RectilinearGrid();
grid.Add(dut.BoundingBox.P1);
grid.Add(dut.BoundingBox.P2);
Vector3D antennaPosition = new Vector3D(
antenna.AbsoluteTransformation.X,
antenna.AbsoluteTransformation.Y,
antenna.AbsoluteTransformation.Z);
solidSpace.Transformations.Add(new TTranslate(-antennaPosition));
grid.Move(-antennaPosition);
grid.Add(new Vector3D(0, 0, 0));
grid.ZLines.Add(-(antenna.Parent as CSXCAD.Ara.PCB).Thickness);
grid.Sort();
grid.SmoothMesh(dutResolution, maxRatio);
grid.AddAirbox(airBox);
grid.SmoothMesh(maxRes, maxRatio);
simulationSpace.Add(new NF2FFBox("nf2ff",
new Vector3D(grid.XLines.First(), grid.YLines.First(), grid.ZLines.First()),
new Vector3D(grid.XLines.Last(), grid.YLines.Last(), grid.ZLines.Last()),
lambdaMin / 15 / unit));
grid.AddPML(8);
Simulation fdtd = new Simulation();
fdtd.Excitation = new GaussExcitation(frequency, bandwidth);
// Export
XDocument doc = new XDocument(
new XDeclaration("1.0", "utf-8", "yes"),
new XComment("CyPhy generated openEMS simulation file"),
new XElement("openEMS",
fdtd.ToXElement(),
new XElement("ContinuousStructure",
new XAttribute("CoordSystem", 0),
simulationSpace.ToXElement(),
grid.ToXElement()
)
)
);
if (dut is CSXCAD.Ara.Module)
{
dut.Parent = endo;
}
System.IO.Directory.CreateDirectory(outputDirectory);
string openEmsInput = Path.Combine(outputDirectory, "openEMS_input.xml");
doc.Save(openEmsInput);
string nf2ffInput = Path.Combine(outputDirectory, "nf2ff_input.xml");
var nf2ff = new Postprocess.NF2FF(frequency);
nf2ff.ToXDocument().Save(nf2ffInput);
File.WriteAllText(Path.Combine(outputDirectory, "run_farfield.cmd"), AraRFAnalysis.Properties.Resources.run_farfield);
}