logic of coupling between two types of antennas

Thread Starter

yef smith

Joined Aug 2, 2020
756
Hello ,In the attached article i got two types of antennas.
one on low frequency and the other in high frequency as shown bellow.
We have two types of antennas together ,one antenna(high frequency) radiates at horisontal polarization and the other(low frequency) with vertical polarization.
In the article they say that mutual coupling is contolled by orthogonal orientation.
I dont understand that ,why the difference in polarization cancelles the effect of low frequency antenna will ruin the S11 of the high frequency antenna?
Its a foreign object ,it will do coupling and create returns.

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