(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

For a given rectangular waveguide the cut off frequency of the fundamental mode is 6.5GHz. What is the fundamental resonant frequency of a 30mm long cavity made from the same waveguide?

2. Relevant equations

Unsure

3. The attempt at a solution

I would have thought that if the rectangular waveguide dimensions didn't change then the fundamental mode would still be 6.5GHz.

I am unsure of how the length contributes to the resonant frequency...

Any help would be great.

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# Homework Help: Fundamental Resonant Frequency of a Waveguide

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