Abstract: A multilayer stripline wafer for use in an electrical connector. The multilayer stripline wafer includes multiple layers. Signal transmission pathways are positioned on at least one internal layer of the multiple layers. The signal transmission pathways may be uncoupled or loosely coupled singe ended single ended signal transmission pathways or differentially coupled signal transmission pathways. Conductive planar members are positioned in one or more layers of the multiple layers. The conductive planar members are spaced from the signal transmission pathways. One or more conductive planar members controls the impedance of the signal transmission pathways.

Abstract: An electrical connector assembly having a housing, signal contacts and ground contacts. The housing has a mounting side configured to face a circuit board. The signal contacts are provided in the housing and have signal contact circuit board mounting sections with signal contact compliant portions. The ground contacts are provided in the housing and have ground contact circuit board mounting sections with ground contact compliant portions. One or more of the signal contact compliant portions or the ground compliant portions have a larger width than the remainder of signal contact compliant portions and the ground compliant portions. The one or more of the signal contact compliant portions or the ground compliant portions cooperate with one or more enlarged vias of the circuit board to align the connector assembly with the circuit board.

Abstract: An electrical connector for use in an electrical connector system which controls cross talk and signal radiation. The electrical connector having a plurality of modules with mating ends and mounting ends. Signal contacts have signal mating contact receiving sections proximate the mating ends and signal circuit board mounting sections proximate the mounting ends. The signal contacts are angled relative to a plane of the mounting ends of the modules, wherein the signal mating contact receiving sections are offset from the signal circuit board mounting section. Ground contacts have ground mating contact receiving sections proximate the mating ends and ground circuit board mounting sections proximate the mounting ends. The ground contacts are angled relative to the plane of the mounting ends of the modules, wherein the ground mating contact receiving sections are offset from the ground circuit board mounting sections.

Abstract: An electrical connector which controls cross talk and signal radiation. The electrical connector includes columns of contacts having signal contacts and ground contacts. Ground shields are positioned between the columns of contacts. The ground shields have planar members with mating ends and mounting ends. The planar members have surfaces which are configured to be electrically coupled to ground members on a mating connector. Voids are provided in the planar members. Mounting members extend from the mounting ends of the planar members. The mounting members are configured to cooperate with the ground contacts provided in the columns of contacts.

Abstract: An electrical connector and a ground system which includes ground contacts and ground shields positioned proximate the ground contacts. The ground contacts have receiving sections, securing sections and mounting sections. The receiving sections have first engagement portions and second engagement portions. The ground shields have a nonplanar configuration, with portions of the ground shields passing between signal contacts. Surfaces of the securing sections of the ground contacts are positioned in mechanical and electrical engagement with surfaces of the ground shields, providing first ground contact areas across which ground currents may flow. The first engagement portions of the ground contacts are provided in electrical and mechanical engagement with the surfaces of the ground shields, providing second ground contact areas across which the ground currents may flow.

Abstract: An electrical interconnection system. The electrical interconnection system includes a housing with at least one circuit board positioned in the housing. At least one cavity is positioned proximate the at least one circuit board. At least one electromagnetic absorber member is positioned in the at least one cavity. The at least one electromagnetic absorber member reduces resonance present in the at least one cavity.

Abstract: A printed circuit board having signal contact receiving vias positioned in rows and ground contact receiving vias positioned in line with the signal contact receiving vias in the rows. Signal integrity vias are positioned between the signal contact receiving vias, between the ground contact receiving vias, and between respective signal contact receiving vias and respective ground contact receiving vias. The signal integrity vias form a ground fence which reduces cross talk in a foot print of a connector mated with the printed circuit board.

Abstract: A substrate assembly includes a first substrate having a first surface and an oppositely facing second surface. Signal pathways are provided on the first surface. The signal pathways extend to first openings which extend inward from an edge of the substrate. First ground pathways are provided on the first surface. Each of the first ground pathways are positioned adjacent at least one of the signal pathways. The first ground pathways extend to second openings which extend inward from the edge of the substrate. Signal contacts are mounted to the first substrate. The signal contacts have first mounting surfaces which provide mechanical and electrical engagement with the first openings. Ground contacts are mounted to the first substrate. The ground contacts have second mounting surfaces which provide mechanical and electrical engagement with the second openings.

Abstract: A multilayer stripline wafer for use in an electrical connector. The multilayer stripline wafer includes multiple layers. Signal transmission pathways are positioned on at least one internal layer of the multiple layers. The signal transmission pathways may be uncoupled or loosely coupled singe ended single ended signal transmission pathways or differentially coupled signal transmission pathways. Conductive planar members are positioned in one or more layers of the multiple layers. The conductive planar members are spaced from the signal transmission pathways. One or more conductive planar members controls the impedance of the signal transmission pathways.

Abstract: An electrical connector with a housing having at least one slot for receiving an electrical wafer therein. Signal contacts are positioned on a first side of the at least one slot. The signal contact resilient contact arms exert a first normal force on the electrical wafer inserted in the at least one slot. At least one ground shield contact member is positioned on a second side of the at least one slot. The ground shield resilient contact arms exert a second normal force on the wafer inserted in the at least one slot. The second normal force exerted by the ground shield resilient contact arms is greater than the first normal force exerted by the signal contact resilient contact arms. The wafer is biased toward the signal contact resilient contact arms of the signal contacts regardless of a thickness of the wafer.

Abstract: An electrical connector which controls cross talk and signal radiation. The electrical connector includes columns of contacts having signal contacts and ground contacts. Ground shields are positioned between the columns of contacts. The ground shields have planar members with mating ends and mounting ends. The planar members have surfaces which are configured to be electrically coupled to ground members on a mating connector. Voids are provided in the planar members. Mounting members extend from the mounting ends of the planar members. The mounting members are configured to cooperate with the ground contacts provided in the columns of contacts.

Abstract: An electrical connector and a ground system which includes ground contacts and ground shields positioned proximate the ground contacts. The ground contacts have receiving sections, securing sections and mounting sections. The receiving sections have first engagement portions and second engagement portions. The ground shields have a nonplanar configuration, with portions of the ground shields passing between signal contacts. Surfaces of the securing sections of the ground contacts are positioned in mechanical and electrical engagement with surfaces of the ground shields, providing first ground contact areas across which ground currents may flow. The first engagement portions of the ground contacts are provided in electrical and mechanical engagement with the surfaces of the ground shields, providing second ground contact areas across which the ground currents may flow.

Abstract: An electrical connector for use in an electrical connector system which controls cross talk and signal radiation. The electrical connector having a plurality of modules with mating ends and mounting ends. Signal contacts have signal mating contact receiving sections proximate the mating ends and signal circuit board mounting sections proximate the mounting ends. The signal contacts are angled relative to a plane of the mounting ends of the modules, wherein the signal mating contact receiving sections are offset from the signal circuit board mounting section. Ground contacts have ground mating contact receiving sections proximate the mating ends and ground circuit board mounting sections proximate the mounting ends. The ground contacts are angled relative to the plane of the mounting ends of the modules, wherein the ground mating contact receiving sections are offset from the ground circuit board mounting sections.

Abstract: A printed circuit board having signal contact receiving vias positioned in rows and ground contact receiving vias positioned in line with the signal contact receiving vias in the rows. Signal integrity vias are positioned between the signal contact receiving vias, between the ground contact receiving vias, and between respective signal contact receiving vias and respective ground contact receiving vias. The signal integrity vias form a ground fence which reduces cross talk in a foot print of a connector mated with the printed circuit board.

Abstract: A substrate assembly includes a first substrate having a first surface and an oppositely facing second surface. Signal pathways are provided on the first surface. The signal pathways extend to first openings which extend inward from an edge of the substrate. First ground pathways are provided on the first surface. Each of the first ground pathways are positioned adjacent at least one of the signal pathways. The first ground pathways extend to second openings which extend inward from the edge of the substrate. Signal contacts are mounted to the first substrate. The signal contacts have first mounting surfaces which provide mechanical and electrical engagement with the first openings. Ground contacts are mounted to the first substrate. The ground contacts have second mounting surfaces which provide mechanical and electrical engagement with the second openings.

Abstract: A circuit board for use in a modular electrical connector. The circuit board has a first surface and an oppositely facing second surface. Signal pathways are provided on the first surface. The signal pathways have signal pathway ends abutting a mounting end of the circuit board. First ground pathways are provided on the first surface. The first ground pathways are positioned adjacent at least one of the signal pathways. The first ground pathways have first ground pathway ends abutting the mounting end of the circuit board. One or more second ground pathways are provided on the second surface. The one or more second ground pathways have second ground pathway ends abutting the mounting end of the circuit board. The positioning of the signal pathway ends, the first ground pathway ends and the second ground pathway ends abutting the mounting end reduces crosstalk between signal pairs.

Abstract: A circuit board for use in a modular electrical connector. The circuit board has a first surface and an oppositely facing second surface. Signal pathways are provided on the first surface. The signal pathways have signal pathway ends abutting a mounting end of the circuit board. First ground pathways are provided on the first surface. The first ground pathways are positioned adjacent at least one of the signal pathways. The first ground pathways have first ground pathway ends abutting the mounting end of the circuit board. One or more second ground pathways are provided on the second surface. The one or more second ground pathways have second ground pathway ends abutting the mounting end of the circuit board. The positioning of the signal pathway ends, the first ground pathway ends and the second ground pathway ends abutting the mounting end reduces crosstalk between signal pairs.

Abstract: A cable connector includes a cable having wire pairs and contacts in contact pairs. The contacts of the contact pairs may be simultaneously crimped to the corresponding wires by a crimp tool. Pair holders hold the contact pairs with an overmolded body molded around supporting bases of the contacts of the contact pair to fix relative positions of the contacts. The cable connector includes a pair shield having shield elements forming shield pockets receiving wire pairs, contact pairs, and pair holders. The cable connector includes a retainer having a retainer cavity that receives the wire pairs and the pair shield. The retainer includes a contact support to support the pair holders and the contact pairs. The cable connector includes an outer shell having an outer shell cavity that receives the retainer and provides electrical shielding for the contact pairs.

Abstract: A cable connector includes a cable having wire pairs and contacts in contact pairs. The contacts of the contact pairs may be simultaneously crimped to the corresponding wires by a crimp tool. Pair holders hold the contact pairs with an overmolded body molded around supporting bases of the contacts of the contact pair to fix relative positions of the contacts. The cable connector includes a pair shield having shield elements forming shield pockets receiving wire pairs, contact pairs, and pair holders. The cable connector includes a retainer having a retainer cavity that receives the wire pairs and the pair shield. The retainer includes a contact support to support the pair holders and the contact pairs. The cable connector includes an outer shell having an outer shell cavity that receives the retainer and provides electrical shielding for the contact pairs.

Abstract: An electrical connector for use in an electrical connector system which controls cross talk and signal radiation. The electrical connector includes a housing having a plurality of modules. The modules have mating ends and mounting ends. Signal contacts are positioned in the modules. The signal contacts extend between the mating ends and the mounting ends and are arranged in pairs to carry differential signals. Ground contacts are positioned in the modules. The ground contacts extend between the mating ends and the mounting ends. Respective ground contacts of the ground contacts are positioned adjacent to respective signal contacts of the signal contacts. Ground plates are positioned in the modules. The ground plates extend between the mating ends and the mounting ends, the ground contacts are electrically connected to the ground plates.