矩形波导模式计算MATLAB代码

最新推荐文章于 2025-08-20 16:53:16 发布

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最新推荐文章于 2025-08-20 16:53:16 发布 · 4.2k 阅读

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#matlab

这篇博客分享了一段MATLAB代码，用于计算矩形波导模式。博主久未编写代码，以此作为练习，并指出相比于Python实现，他选择了MATLAB进行编写。

不喜勿喷，本人很久没写代码了，随便找点东西练一下手。网上有看到使用Python实现的，懒得装乱七八糟的东西，就拿MATLAB写了一遍，代码及说明如下。

clear all;

%This code help you to calculate the cutoff wavelength in a rectangular
%waveguide and give you the order of the modes.

% Here, you need to input rectangular waveguide's a and b, the default figure use WR90's.
% Do remember that the value of a is bigger than b;
% a=20.86;
% b=10.12;
a=input('Please input the value of a:');
b=input('Please input the value of b:');

%Here you can choose how many modes you may need.
for i = 0:2  %According to the number you have chosen
    for j = 0:2   %According to the number you have chosen
        if i == 0 & j == 0   %TE00 mode is not exist.
        else
            lambda(i+1,j+1) = 2/sqrt((i/a)^2+(j/b)^2);
            lam(i*3+j)=2/sqrt((i/a)^2+(j/b)^2);   %According to the number you have chosen
        end
    end
end

lam=sort(lam);   %Now the length of this array is eight.
for k = 1:8
    for i = 0:2
        for j = 0:2
            if