天线中的耦合应用

如何两副天线同为接受天线，那么天线之间的耦合只是会影响两副天线的接受频点
如何一副为发射天线，另一副为接收天线 ，耦合不但影响两副天线的接受频点，强的耦合会造成一幅天线的增益增大，另一幅电线接收不必要的信号 ，引起噪声

耦合 should be mutual couping. for the antennas in separate systems, the MC is a interference to each other even they are working in different frequencies. in multi-antenna systems, such as MIMO or diversity systems, the MC will cause correlation to degrade the system performance such as capacity.

however, the MC can be used to control radiation performance in multiple antenna systems to achieve space diversity.

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