FIG. 4C illustrates a cutaway side view of an example of the isolator 100 according to various implementations. As shown, the isolator 100 can be configured with the two toroids 132. In this example, the toroids 132 can be positioned can be positioned on a side of the isolator 100 closer to the coupler 104. For example, the toroids 132 can be formed to fit over the diameters 202 and 204 of the coupling/filtering member 118. The isolator 100 can also include the coaxial PCB 130 positioned on the output side of the coupling/filtering member 118. In some implementations, for example, the coaxial PCB 130 can be the coaxial PCB 130 as described in FIGS. 3A and 3B. In some implementations, for example, the coaxial PCB 130 can be the coaxial PCB 130, as described in FIGS. 3C and 3D. In some implementations, for example, the coaxial PCB 130 can be the coaxial PCB 130, as described in FIG. 3E. While FIG. 4C illustrates the positioning of the toroids 132 and the coaxial PCB 130, in some implementations, the positioning of the toroids 132 and the coaxial PCB 130 can be reversed.