Electrical surge protection apparatus

摘要

A surge protection apparatus (20) has a first quadrature coupler (22) with a first input (24) coupled to an electrical ground (26), and a second input (28) connected to an input signal. A second quadrature coupler (34) having a third input (32) is coupled to a first output (30) of the first quadrature coupler (22). A fourth input (38) is coupled to a second output (36) of the first quadrature coupler (22). A third output (40) is coupled to a signal port and a fourth output (42) is coupled to the electrical ground.