Examples given above combine a receiver anil transnutter on a single antenna or antenna system. It is also possible to use the hybrid for antenna arrays intended for receivers. Antenna spac ed some distance A' apart will have different patterns and gains depending on the value of X and the relative phase of the currents in the two antennas. One can, therefore, connect the antennas to ports 2 and 3 and the receiver antenna input to port 1. A terminating resistor would be used at port 4. You can use 0°, 90*, or 180* hybrids depending on the particular antenna system.
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