#### pikuha

##### Newbie

Hello everyone! My question relates to the dispersion diagram (I've attached Abb. 2).

I have a coplanar waveguide and have to plot the dispersion diagram ω(β), where ω - angular frequency and β - the phase constant.

I have found some information about the dispersion diagram for the rectangular waveguide, where the TEM mode exists. But as I know, in the coplanar waveguide exists quasi TEM mode and the coplanar waveguide isn't a rectangular waveguide, I couldn't use geometric parameters like the height

If I would like to plot the angular frequency versus the phase constant for the coplanar waveguide, I can't just multiply ω*β, or?

So, I am not sure, how it works for the coplanar waveguide.

If you have any related information, please let me know. I'd be grateful!

I have a coplanar waveguide and have to plot the dispersion diagram ω(β), where ω - angular frequency and β - the phase constant.

I have found some information about the dispersion diagram for the rectangular waveguide, where the TEM mode exists. But as I know, in the coplanar waveguide exists quasi TEM mode and the coplanar waveguide isn't a rectangular waveguide, I couldn't use geometric parameters like the height

*b*and the width*a*(I've attached Abb. 1) to calculate mods for the dispersion diagram.If I would like to plot the angular frequency versus the phase constant for the coplanar waveguide, I can't just multiply ω*β, or?

So, I am not sure, how it works for the coplanar waveguide.

If you have any related information, please let me know. I'd be grateful!

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