A communication link for communicating between a host device (16; 216) and a client device (14; 214) remote from the host device (16; 216), the communication link comprising: at least one optical fiber comprising a first terminal end and a second terminal end; a head end unit (18; 218) coupled to the host device (16, 216) and optically coupled to the at least one optical fiber at the first terminal end, the head end unit comprising a first electro-optic converter configured to convert a received optical signal into an electrical signal or vice versa; and a remote antenna assembly (20, 220) at the second terminal end comprising a second electro-optic converter that converts a received optical signal into an electrical signal or vice versa, wherein the remote antenna assembly (20, 220) comprises an electromagnetic coupler (284, 580), characterized in that the electromagnetic coupler (284, 580) is configured to couple electromagnetic energy to the client device (14; 214) in the near field, the electromagnetic coupler (284, 580) comprising: a substrate (288; 582) comprising a first surface (290; 584) and a second surface (292; 586) opposite the first surface (290; 584), wherein the substrate (288; 582) has a thickness equal to or less than 500 μm; a conductive ground plane (296; 590) disposed on the second surface (292; 586) of the substrate (288; 582), the conductive ground plane (296; 590) defining an aperture (298; 592) extending therethrough, wherein the aperture (298; 592) has a width (W2; W7) in a range from 125 μm to 225 μm and a length (L2; L7) in a range from 600 μm to 700 μm; and a conductive strip (294; 588) positioned on the first surface (290; 584) of the substrate (288; 582), wherein the conductive strip (294; 588) has a width (W1; W6) in a range from 150 μm to 250 μm and a length (L1; L6) in a range from 2200 μm to 2300 μm. at least one optical fiber comprising a first terminal end and a second terminal end; a head end unit (18; 218) coupled to the host device (16, 216) and optically coupled to the at least one optical fiber at the first terminal end, the head end unit comprising a first electro-optic converter configured to convert a received optical signal into an electrical signal or vice versa; and a remote antenna assembly (20, 220) at the second terminal end comprising a second electro-optic converter that converts a received optical signal into an electrical signal or vice versa, wherein the remote antenna assembly (20, 220) comprises an electromagnetic coupler (284, 580), characterized in that the electromagnetic coupler (284, 580) is configured to couple electromagnetic energy to the client device (14; 214) in the near field, the electromagnetic coupler (284, 580) comprising: a substrate (288; 582) comprising a first surface (290; 584) and a second surface (292; 586) opposite the first surface (290; 584), wherein the substrate (288; 582) has a thickness equal to or less than 500 μm; a conductive ground plane (296; 590) disposed on the second surface (292; 586) of the substrate (288; 582), the conductive ground plane (296; 590) defining an aperture (298; 592) extending therethrough, wherein the aperture (298; 592) has a width (W2; W7) in a range from 125 μm to 225 μm and a length (L2; L7) in a range from 600 μm to 700 μm; and a conductive strip (294; 588) positioned on the first surface (290; 584) of the substrate (288; 582), wherein the conductive strip (294; 588) has a width (W1; W6) in a range from 150 μm to 250 μm and a length (L1; L6) in a range from 2200 μm to 2300 μm. a substrate (288; 582) comprising a first surface (290; 584) and a second surface (292; 586) opposite the first surface (290; 584), wherein the substrate (288; 582) has a thickness equal to or less than 500 μm; a conductive ground plane (296; 590) disposed on the second surface (292; 586) of the substrate (288; 582), the conductive ground plane (296; 590) defining an aperture (298; 592) extending therethrough, wherein the aperture (298; 592) has a width (W2; W7) in a range from 125 μm to 225 μm and a length (L2; L7) in a range from 600 μm to 700 μm; and a conductive strip (294; 588) positioned on the first surface (290; 584) of the substrate (288; 582), wherein the conductive strip (294; 588) has a width (W1; W6) in a range from 150 μm to 250 μm and a length (L1; L6) in a range from 2200 μm to 2300 μm.