biff44
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Antennas question.....I know if i have a transmitting antenna that is circularly polarized, and a receiving antenna that is vertical polarized...i will get low link loss no mater how i rotate that circularly polarized patch antenna. The link will have a 3 dB loss higher than normal, since i am only receiving one of the two components of the transmitted signal.
But does it need to be "circular polarized" to do this? I mean, what if i had a "dual polarized" transmit antenna. One that sends one transmit component vertically polarized, and one component horizontally polarized, but without the 90 degree phase shift? Can i rotate that dual polarized antenna around its center point, and get uniform link loss....or will there be certain rotation angles where something odd happens and the signal has a dip in level?
But does it need to be "circular polarized" to do this? I mean, what if i had a "dual polarized" transmit antenna. One that sends one transmit component vertically polarized, and one component horizontally polarized, but without the 90 degree phase shift? Can i rotate that dual polarized antenna around its center point, and get uniform link loss....or will there be certain rotation angles where something odd happens and the signal has a dip in level?