Method of calculating the transmission matrix (Tvv, Tvh, Thv, Thh)

Hello,

the transmission matrix considers both polarization states (V and H) for the computations, which means it is independent of the assignment done at the transmitter in your project as both cases (V and H pol) will be computed in any case and provided in the corresponding results.

For the interactions (reflections, transmissions, diffractions) the defined material properties are considered.

Best regards

Hello Reinerh

Thanks for your response! I understand that the material properties are considered for all interactions, and so the values of the transmission matrix are influenced by the material properties. But i'm having trouble to see how the values in the transmission matrix are generated, how they are calculated? 

For example for the direct ray the material properties do not matter, how is the transmission matrix generated in that case? And what if there is a reflection?

I'm sorry if i'm missing something here.

Kind regards

Publi

Hello,

In case of the direct ray (where the material properties do not matter) also the four different cases Tvv, Tvh, Thv, Thh are analyzed.

So what happens in case of Tx antenna with v-pol and Rx antenna with v-pol, and so on for the other cases.

As for the direct ray no interactions (like e.g. reflections) are included just the direct ray is analyzed and then Tvv as well as Thh describe the corresponding complex transmission factor in linear scale (depending on the distance) while Tvh as well as Thv are almost zero due to the polarisation mismatch.

The first letter stands for the Tx polarization and the second letter for the Rx polarization, so Tvh is for vertically polarized transmission with horizontally polarized reception and Thv evaluates the case for Tx H pol with Rx V pol.

Best regards