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In: Electrical Engineering

Why in a metal parallel-plate waveguide does TM0 exist and TE0 does not? Or is it...

Why in a metal parallel-plate waveguide does TM0 exist and TE0 does not? Or is it the other way around?

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Expert Solution

In metal parallel-plate waveguides,the the electric field of TE​​​​​m is derived from Maxwell equation is:

E(x)= y​​​​​​​​​​^ E o sin(mπx/d) e -i beta z

In the figure attached you see that for TE​​​​​0 case

(m=0),we have trivial answer of E=0,that is why TE starts with TE​​1 .This doesn't happen with TM​​​​​0 model beacuse it behave like a cosine functions instead of sine i.e. it is not zero at m=0.

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Manojponduru answered 1 year ago
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