Abstract: An electrical connector of an electrical connector assembly. The electrical connector includes a housing with a mating face for mating with a mating electrical connector. Contact receiving cavities extend into the housing from the mating face. Contacts are provided in the contact receiving cavities. Mating portions of the contacts extend from the mating face in a direction away from the housing. Protrusions extend from the mating face in a direction away from the housing. The protrusions extend proximate edges of the mating portions of the contacts. The protrusions form reverse chamfers which cooperate with lead-in chamfers provided in a surface of the mating electrical connector. The positioning of the protrusions in the lead-in chamfers fills in air gaps provided by the lead-in chamfers to provide an impedance match along the mating portions of the contacts when the electrical connector is mated with the mating electrical connector.

Abstract: An electrical connector of an electrical connector assembly. The electrical connector includes a housing with a mating face for mating with a mating electrical connector. Contact receiving cavities extend into the housing from the mating face. Contacts are provided in the contact receiving cavities. Mating portions of the contacts extend from the mating face in a direction away from the housing. Protrusions extend from the mating face in a direction away from the housing. The protrusions extend proximate edges of the mating portions of the contacts. The protrusions form reverse chamfers which cooperate with lead-in chamfers provided in a surface of the mating electrical connector. The positioning of the protrusions in the lead-in chamfers fills in air gaps provided by the lead-in chamfers to provide an impedance match along the mating portions of the contacts when the electrical connector is mated with the mating electrical connector.

Abstract: An electrical connector includes a conductive shell, a dielectric holder, and electrical contacts. The conductive shell defines a cavity. The dielectric holder is disposed within the cavity. The electrical contacts are mounted to the dielectric holder within the cavity and are arranged in pairs. The pairs include multiple pairs in a cancellation arrangement and an isolated pair spaced apart from the pairs in the cancellation arrangement. A separation distance from the isolated pair to a closest neighboring electrical contact of the electrical contacts is greater than respective separation distances from each of the pairs in the cancellation arrangement to corresponding closest neighboring electrical contacts of the electrical contacts.

Abstract: A board to board contactless interconnect system includes a first circuit board for launching at st one microwave signal into a cavity of a first waveguide secured thereto. A second waveguide, secured to a second circuit board, is coupleable to the first waveguide to receive the at least one microwave signal in a cavity of the second waveguide and conduct the at least one microwave signal onto a microwave receiver aligned with the cavity on the second circuit board. The waveguides may be separable and may include additional waveguides. Conductive gaskets with apertures for microwave signals to pass through are positioned between the waveguides and between each circuit board and a waveguide to prevent leakage of microwave energy therebetween. Some embodiments may pass signals through a sealed boundary and maintain integrity of the seal. Such embodiments may have a third waveguide interposed between the first and second waveguides.

Abstract: An electrical contact pad for electrically contacting a connector includes a first region having a first length in a longitudinal direction, and a second region having a second length in the longitudinal direction that is greater than the first length. The first region is arranged to contact a first arm of the connector and the second region is arranged to contact a second arm of the connector. The first length being smaller than the second length results in a beneficial increases the impedance of the electrical contact pad. A chamfered edge of the contact pad results in an additional beneficial increase in the impedance of the electrical contact pad.

Abstract: An electrical contact pad for electrically contacting a connector includes first, second and third regions. The first region is connected to a trace. The second region is adjacent to the first region and has a width less than the first region. The third region is adjacent to the second region and has a width that is greater than the second region. The third region is sized to make contact with a connector. Having the width of the second region be smaller than the width of the first and third regions increases an impedance of the electrical contact pad.

Abstract: An electrical contact pad for electrically contacting a connector includes first, second and third regions. The first region is connected to a trace. The second region is adjacent to the first region and has a width less than the first region. The third region is adjacent to the second region and has a width that is greater than the second region. The third region is sized to make contact with a connector. Having the width of the second region be smaller than the width of the first and third regions increases an impedance of the electrical contact pad.

Abstract: An electrical contact pad for electrically contacting a connector includes a first region having a first length in a longitudinal direction, and a second region having a second length in the longitudinal direction that is greater than the first length. The first region is arranged to contact a first arm of the connector and the second region is arranged to contact a second arm of the connector. The first length being smaller than the second length results in an increase in the impedance of the electrical contact pad as compared to typical contact pads which tend to correspond to low impedance regions.

Abstract: A board to board contactless interconnect system includes a first circuit board for launching at st one microwave signal into a cavity of a first waveguide secured thereto. A second waveguide, secured to a second circuit board, is coupleable to the first waveguide to receive the at least one microwave signal in a cavity of the second waveguide and conduct the at least one microwave signal onto a microwave receiver aligned with the cavity on the second circuit board. The waveguides may be separable and may include additional waveguides. Conductive gaskets with apertures for microwave signals to pass through are positioned between the waveguides and between each circuit board and a waveguide to prevent leakage of microwave energy therebetween. Some embodiments may pass signals through a sealed boundary and maintain integrity of the seal. Such embodiments may have a third waveguide interposed between the first and second waveguides.

Abstract: An optical assembly comprising: (a) a substrate having a first planar surface; (b) an optical component connected to the substrate and having a second planar surface parallel to the first surface and at least one first optical axis; (c) a plurality of optical fiber stubs having a certain diameter and being disposed at least partially between the substrate and the optical component; (d) at least one of the substrate or the optical component having one or more grooves on the first or second surfaces, respectively, such that each groove is configured to receive one of the plurality of fiber stubs such that each of the fiber stubs protrudes a first distance from the first or second surface to space the first surface the first distance from the second surface; and (e) a least one optical conduit having a second optical axis, the optical conduit being disposed on the first or second surface such that the second optical axis is optically aligned with the first optical axis.

Abstract: A card edge connector is provided for mating with a printed circuit board (PCB) having a card edge. The connector includes a housing having a card slot. The card slot is configured to receive the card edge of the PCB therein. The card slot includes opposing first and second sides. Signal contacts are held by the housing. The signal contacts include signal mating segments arranged in opposing first and second rows that extend along the opposing first and second sides, respectively, of the card slot. The signal mating segments are arranged in differential signal pairs, wherein the signal mating segments within a differential pair are arranged within the same row of the first and second rows. A ground contact is held by the housing. The ground contact includes a base and first and second ground mating segments that extend outwardly from the base.

Abstract: A receptacle connector is provided for mating with a pluggable module having a plug and a printed circuit. The receptacle connector includes a housing having a mating receptacle and a slot. The mating receptacle is configured to receive the plug of the pluggable module therein. The slot is configured to receive the printed circuit of the pluggable module therein. A receptacle contact is held by the housing. The receptacle contact includes a receptacle mating segment that extends within the mating receptacle and is configured to engage a mating contact of the plug of the pluggable module. A slot contact is held by the housing. The slot contact includes a slot mating segment that extends within the slot and is configured to engage the printed circuit of the pluggable module.

Abstract: A straddle mount connector is provided for edge mounting to a circuit board of a pluggable module. The straddle mount connector includes a dielectric connector body having a base and a plug extending from the base. The base is configured to be coupled to an edge of the circuit board. The plug has opposite first and second sides and a plate cavity that extends within the plug between the first and second sides. The plug is configured to be received within a receptacle of a receptacle connector. Electrical contacts are held by the connector body. The electrical contacts include mating segments. The mating segments of a first group of the electrical contacts are arranged in a first row that extends a length along the first side of the plug. The mating segments of a second group of the electrical contacts are arranged in a second row that extends a length along the second side of the plug. A ground plate is held within the plate cavity of the plug of the connector body.

Abstract: A receptacle connector includes a dielectric connector body having a receptacle configured to receive a mating connector therein. Signal and ground contacts are held by the connector body. The signal and ground contacts include mating segments that are arranged within the receptacle of the connector body in a row that extends a length along a row axis. The mating segments of the signal and ground contacts include mating interfaces that extend within the receptacle for mating with corresponding mating contacts of the mating connector. A ground shield extends within the receptacle. The ground shield overlaps the mating segments of the signal and ground contacts within the receptacle along the length of the row of the mating segments.

Abstract: A straddle mount connector is provided for edge mounting to a circuit board of a pluggable module. The straddle mount connector includes a dielectric connector body having a base and a plug extending from the base. The base is configured to be coupled to an edge of the circuit board. The plug has opposite first and second sides and a plate cavity that extends within the plug between the first and second sides. The plug is configured to be received within a receptacle of a receptacle connector. Electrical contacts are held by the connector body. The electrical contacts include mating segments. The mating segments of a first group of the electrical contacts are arranged in a first row that extends a length along the first side of the plug. The mating segments of a second group of the electrical contacts are arranged in a second row that extends a length along the second side of the plug. A ground plate is held within the plate cavity of the plug of the connector body.

Abstract: A receptacle connector includes contacts having posts and contact tails extending from the posts. The contact tails are configured to be mounted to a circuit board. The contacts have mating sections extending from the posts. The mating sections are configured for mating with a mating connector. The contacts define signal contacts and ground contacts with the signal contacts arranged in pairs and the pairs of signal contacts being separated by at least one ground contact. The receptacle connector also includes a housing holding the signal and ground contacts in parallel at a predetermined pitch. The housing has a front and a rear with a cavity at the front being configured to receive the mating connector. The housing has walls defining channels that receive the signal and ground contacts.

Abstract: A card edge connector is provided for mating with a printed circuit board (PCB) having a card edge. The connector includes a housing having a card slot. The card slot is configured to receive the card edge of the PCB therein. The card slot includes opposing first and second sides. Signal contacts are held by the housing. The signal contacts include signal mating segments arranged in opposing first and second rows that extend along the opposing first and second sides, respectively, of the card slot. The signal mating segments are arranged in differential signal pairs, wherein the signal mating segments within a differential pair are arranged within the same row of the first and second rows. A ground contact is held by the housing. The ground contact includes a base and first and second ground mating segments that extend outwardly from the base.

Abstract: A receptacle connector includes contacts having posts and contact tails extending from the posts. The contact tails are configured to be mounted to a circuit board. The contacts have mating sections extending from the posts. The mating sections are configured for mating with a mating connector. The contacts define signal contacts and ground contacts with the signal contacts arranged in pairs and the pairs of signal contacts being separated by at least one ground contact. The receptacle connector also includes a housing holding the signal and ground contacts in parallel at a predetermined pitch. The housing has a front and a rear with a cavity at the front being configured to receive the mating connector. The housing has walls defining channels that receive the signal and ground contacts.

Abstract: A receptacle connector includes a housing having a mating interface for mating with a mating connector. Ground contacts are held by the housing. The ground contacts include ground mating segments arranged along the mating interface of the housing for mating with ground terminals of the mating connector. The ground mating segments of the ground contacts include ground mating surfaces configured to engage the ground terminals. The ground mating surfaces of the ground mating segments extending within at least one ground plane. Signal contacts are held by the housing. The signal contacts include signal mating segments arranged along the mating interface of the housing for mating with signal terminals of the mating connector. The signal mating segments of the signal contacts include signal mating surfaces configured to engage the signal terminals.

Abstract: A receptacle connector is provided for mating with a pluggable module having a plug and a printed circuit. The receptacle connector includes a housing having a mating receptacle and a slot. The mating receptacle is configured to receive the plug of the pluggable module therein. The slot is configured to receive the printed circuit of the pluggable module therein. A receptacle contact is held by the housing. The receptacle contact includes a receptacle mating segment that extends within the mating receptacle and is configured to engage a mating contact of the plug of the pluggable module. A slot contact is held by the housing. The slot contact includes a slot mating segment that extends within the slot and is configured to engage the printed circuit of the pluggable module.