Electrical Plug Connector, Electrical Mating Plug Connector, and Electrical Plug Connection

An plug connector for electrical and mechanical connection to a mating plug connector has an outer conductor contact element and an inner conductor contact element. The inner conductor contact element has an inner-conductor-side contact region and the outer conductor contact element has an outer-conductor-side contact region. An inner-conductor-side contact plane is spanned by contact points of the inner-conductor-side contact region to contact a corresponding contact point of an inner conductor mating contact element. An outer-conductor-side contact plane is defined by contact points to contact a corresponding contact point of an outer conductor mating contact element. The inner-conductor-side contact plane and the outer-conductor-side contact plane are spaced apart in such a way that, in a plugged state of the plug connector and the mating plug connector, compensation of an electrical signal reflected in the inner-conductor-side contact plane by an electrical signal reflected in outer-conductor-side contact plane is attainable.