Error Unrecognized property 'L' for class 'patchMicrostrip'.

2023 4 3
1 个回答
更新时间：2023 4 3
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When i run my code Matlab give me this Error, i dont know why
freq = 10e9;
lamda = physconst('LightSpeed')/freq;
ant_len = 0.5*lamda;
ant_width = 0.1*lamda;
ant_height = 0.01*lamda;
ant_imp = 50;
ant = design(patchMicrostrip, freq);
ant.L = ant_len;
Unrecognized property 'L' for class 'patchMicrostrip'.
ant.W = ant_width;
ant.H = ant_height;
ant.Z = ant_imp;
theta = linspace(-pi/2,pi/2,181);
phi = 0;
[PAT,theta] = pattern(ant,freq,theta,phi);
figure;
polarplot(theta,abs(PAT),'LineWidth',2);
title('Diagrama de Radiación de la Antena de Microbandas');

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回答（1 个）

Walter Roberson
Walter Roberson 2023-4-3
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There is still an error in the below because I could not figure out what property Z might be intended to represent.
freq = 10e9;
lamda = physconst('LightSpeed')/freq;
ant_len = 0.5*lamda;
ant_width = 0.1*lamda;
ant_height = 0.01*lamda;
ant_imp = 50;
ant = design(patchMicrostrip, freq);
ant.Length = ant_len;
ant.Width = ant_width;
ant.Height = ant_height;
ant
ant =
patchMicrostrip with properties: Length: 0.0150 Width: 0.0030 Height: 2.9979e-04 Substrate: [1×1 dielectric] GroundPlaneLength: 0.0300 GroundPlaneWidth: 0.0300 PatchCenterOffset: [0 0] FeedOffset: [0.0030 0] Conductor: [1×1 metal] Tilt: 0 TiltAxis: [1 0 0] Load: [1×1 lumpedElement]
ant.Z = ant_imp;
Unrecognized property 'Z' for class 'patchMicrostrip'.
theta = linspace(-pi/2,pi/2,181);
phi = 0;
[PAT,theta] = pattern(ant,freq,theta,phi);
figure;
polarplot(theta,abs(PAT),'LineWidth',2);
title('Diagrama de Radiación de la Antena de Microbandas');

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