Variable antenna impedance matching system - matches antenna to supply cable impedance in presence of influence from adjacent antenna

摘要

The impedance matching system matches the impedance of an antenna to the impedance of the cable supplying it in circumstances where the antenna impedance can change as a result of being influenced by an adjacent antenna. The variable matching components in the system are set such that the impedance circle representing the variable antenna impedance in a complex impedance diagram is transformed (by transformation in the matching system) into an impedance circle of constant standing-wave ratio.