Space diversity combiner

摘要

The benefits of space diversity combining in the presence of interference has been found to depend upon the signal-to-interference ratios at the two antennas. For optimum results, the signal-to-interference ratios should not differ by more than +/-3 dB. If they do, an attenuator (12) is included in the antenna circuit (10) having the poorer signal-to-interference ratio so as to reduce the signal contribution from that antenna. Optimum signal conditions are disclosed.