Abstract: Electrical connector including a conductor pair having first and second signal conductors extending through the connector body along respective paths between the mating and mounting sides. The first signal conductor has a height and a thickness taken transverse to a direction of the respective path and includes a flag segment and a base segment. The height of the first signal conductor along the flag segment is greater than the height of the first signal conductor along the base segment. The electrical connector also includes a dielectric body extending between the mating and mounting sides and surrounding the conductor pair. The dielectric body has a signal-control trench that extends along and exposes the flag segment to an air dielectric. The signal-control trench has a height that is measured along the height of the flag segment. The height of the signal-control trench is less than the height of the flag segment.

Abstract: A receptacle assembly includes a contact module having a conductive holder and a frame assembly received in the conductive holder and electrically shielded by the conductive holder. The frame assembly has a plurality of receptacle signal contacts having mating portions extending from the conductive holder. The receptacle signal contacts are arranged in differential pairs carrying differential signals. Ground shields are received in the conductive holder between the frame assembly and the conductive holder. The ground shields have grounding beams extending along the mating portions of the receptacle signal contacts. The grounding beams are arranged on four sides of each differential pair of the receptacle signal contacts.

Abstract: Electrical connector including a conductor pair having first and second signal conductors extending through the connector body along respective paths between the mating and mounting sides. The first signal conductor has a height and a thickness taken transverse to a direction of the respective path and includes a flag segment and a base segment. The height of the first signal conductor along the flag segment is greater than the height of the first signal conductor along the base segment. The electrical connector also includes a dielectric body extending between the mating and mounting sides and surrounding the conductor pair. The dielectric body has a signal-control trench that extends along and exposes the flag segment to an air dielectric. The signal-control trench has a height that is measured along the height of the flag segment. The height of the signal-control trench is less than the height of the flag segment.

Abstract: A receptacle assembly includes a contact module having a conductive holder and a frame assembly received in the conductive holder and electrically shielded by the conductive holder. The frame assembly has a plurality of receptacle signal contacts having mating portions extending from the conductive holder. The receptacle signal contacts are arranged in differential pairs carrying differential signals. Ground shields are received in the conductive holder between the frame assembly and the conductive holder. The ground shields have grounding beams extending along the mating portions of the receptacle signal contacts. The grounding beams are arranged on four sides of each differential pair of the receptacle signal contacts.

Abstract: A flexible circuit is provided. The flexible circuit includes a circuit board mating end and a flexible body extending from the circuit board mating end. A conductive pathway extends through the flexible body to electrically couple circuit boards. A connector pad is positioned on the circuit board mating end. The conductive pathway electrically engages the connector pad. The connector pad is configured to electrically couple the flexible circuit to one of the circuit boards. A layer of uncured material extends between the connector pad and the conductive pathway. The layer of uncured material increases an impedance of the connector pad.