Various loads to 50 ohms, given frequency and component Qs. I do this by calculating the L-network L and C values required to match Low-pass configurations of two-element lossy L-Networks. This code analyzesīoth the series-L/parallel-C and parallel-C/series-L (LsCp and CpLs) Power-dissipation data I've displayed, above. Script below, I call surfc in the form of surfc(X,Y,Z):īelow is the complete MATLAB script I used to generate the The actual 3-D plot is made using MATLAB's surfc.
#Matlab smith chart pdf#
Smith_rab_v2.m (refer to the documentation PDF contained in the S-Parameter Utilities download).Ģ. The code begins by customizing the Smith Chart plot parameters for Set(ht, 'Color', 'FontSize',12) Notes on the plotting code, above:ġ. Set(handles.surf(1,2), 'Linewidth',2) % nice fat contours lines! Handles.surf(1,:) = surfc(real_gamma,imag_gamma,Percent_Loss) Set(handles.cb(1).Label, 'String', 'Percent Power Loss'. Set(handles.cb(1), 'Color', SP.colors.outer_text. Set(handles.Axes_Smith(4), 'visible', 'on'. Handles.smith(4) = smith_rab_v2(handles.Axes_Smith(4),SP) Handles.figure(4) = figure( 'NumberTitle', 'Off'. SP.Q_pts = % number of points in a Q contour SP.LW_swr = 2 % LW= line width for SWR Circles SP.swr_circles = % set to for no SWR circles SP.LW = 1 % LW= line width for Smith coordinates % Plot 3-d smith chart % First, set Smith Chart parameters for smith_rab_v2.m, % per its documentation: It invokes surfc in the form surfc(X,Y,Z), per the description, above. Below is the code to create a Smith Chart plot of data in 3-D.
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