Physical_constants; unit = 1e-3;% all length in mm% patch width in x-direction patch. Width = 30;% resonant length% patch length in y-direction patch. Length = 40;%substrate setup substrate. EpsR = 3.38; substrate. Kappa = 1e-3 * 2* pi*2.45e9 * EPS0*substrate. EpsR; substrate.
Patch Antenna Array for FMCW Radar. This example uses: Antenna Toolbox. In this example, we will investigate the microstrip patch antenna as a phased array radiator. The dielectric substrate is air. This example requires the Antenna Toolbox™. Run the command by entering it in the MATLAB Command Window. Design and Performance Optimization of a Microstrip Antenna G.C Nwalozie, C.C Okezie, S.U Ufoaroh, S.U Nnebe. The simulation was developed in MATLAB and Transmission line Matrix (TLM) was used for the model. Microstrip patch Antenna”, novel techniques for.
Width = 60; substrate. Length = 60; substrate. Thickness = 1.524; substrate. Cells = 4;%setup feeding feed.
Pos = - 5.5;%feeding position in x-direction feed. Width = 2;%feeding port width feed. R = 50;%feed resistance% size of the simulation box SimBox = [ 200 200 100 ]; • Setup FDTD, signals &. Max_res = c0 / (f0+fc ) / unit / 20;% cell size: lambda/20 CSX = InitCSX ( );%create fixed lines for the simulation box, substrate and port mesh.
X = [-SimBox ( 1 )/ 2 SimBox ( 1 )/ 2 -substrate. Width/ 2 substrate. Width/ 2 - patch. Width/ 2 patch.
Width/ 2 feed. X = SmoothMeshLines ( mesh. X, max_res, 1.4 );% create a smooth mesh between specified fixed mesh lines mesh.
Y = [-SimBox ( 2 )/ 2 SimBox ( 2 )/ 2 -substrate. Length/ 2 substrate. Length/ 2 -feed.
Width/ 2 feed. Width/ 2 - patch. Length/ 2 patch.
Length/ 2 ]; mesh. Y = SmoothMeshLines ( mesh. Y, max_res, 1.4 );%create fixed lines for the simulation box and given number of lines inside the substrate mesh. Z = [-SimBox ( 3 )/ 2 linspace ( 0,substrate. Cells ) SimBox ( 3 )/ 2 ]; mesh.
Z = SmoothMeshLines ( mesh. Z, max_res, 1.4 ); CSX = DefineRectGrid ( CSX, unit, mesh ); • Setup the geometry. %% create patch CSX = AddMetal ( CSX, 'patch' );% create a perfect electric conductor (PEC) start = [- patch. Width/ 2 - patch. Free marathi mp3 song download.
Length/ 2 substrate. Thickness ]; stop = [ patch. Width/ 2 patch. Length/ 2 substrate. Thickness ]; CSX = AddBox (CSX, 'patch', 10,start,stop );% add a box-primitive to the metal property 'patch'%% create substrate CSX = AddMaterial ( CSX, 'substrate' ); CSX = SetMaterialProperty ( CSX, 'substrate', 'Epsilon', substrate. EpsR, 'Kappa', substrate.
Kappa ); start = [-substrate. Width/ 2 -substrate. Length/ 2 0 ]; stop = [ substrate. Width/ 2 substrate. Length/ 2 substrate. Thickness ]; CSX = AddBox ( CSX, 'substrate', 0, start, stop );%% create ground (same size as substrate) CSX = AddMetal ( CSX, 'gnd' );% create a perfect electric conductor (PEC) start ( 3 )= 0; stop ( 3 ) = 0; CSX = AddBox (CSX, 'gnd', 10,start,stop ); • Setup the feeding port as a lumped port with 50 Ohms.