Patents by Inventor Vysakh Sivarajan

Vysakh Sivarajan has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20210257788
    Abstract: An electrical interconnect for passing high speed signals through an electronic system with a high density of signals and high signal integrity. The interconnect includes an electrical connector and a transition portion of a printed circuit board to which the connector is mounted. Signal conductors are connected to pads on the surface of the PCB using edge-to-pad mounting. The pads align with intermediate portions of the signal conductors such that transitions within the connector that could degrade signal integrity are avoided. The signal conductors may be positioned as individually shielded broadside coupled pairs extending in rows within the connector. Surface traces on the PCB connect the pads to signal vias aligned for vertical routing out of the connector footprint. Ground planes underlying the surface traces facilitate a transition from the signal paths in the connector to those in the PCB with low mode conversion avoiding resonances in the connector shields.
    Type: Application
    Filed: January 27, 2021
    Publication date: August 19, 2021
    Applicant: Amphenol Corporation
    Inventors: Marc B. Cartier, JR., John Robert Dunham, Mark W. Gailus, David Levine, Allan Astbury, Vysakh Sivarajan, Daniel B. Provencher, Eric Leo
  • Publication number: 20210234290
    Abstract: An electrical interconnect for passing high speed signals through an electronic system with a high density of signals and high signal integrity. The interconnect includes an electrical connector and a transition portion of a printed circuit board to which the connector is mounted. Signal conductors are connected to pads on the surface of the PCB using edge-to-pad mounting. The pads align with intermediate portions of the signal conductors such that transitions within the connector that could degrade signal integrity are avoided. The signal conductors may be positioned as individually shielded broadside coupled pairs extending in rows within the connector. Surface traces on the PCB connect the pads to signal vias aligned for vertical routing out of the connector footprint. Ground planes underlying the surface traces facilitate a transition from the signal paths in the connector to those in the PCB with low mode conversion avoiding resonances in the connector shields.
    Type: Application
    Filed: January 27, 2021
    Publication date: July 29, 2021
    Applicant: Amphenol Corporation
    Inventors: John Robert Dunham, Marc B. Cartier, JR., Mark W. Gailus, David Levine, Allan Astbury, Vysakh Sivarajan, Daniel B. Provencher, Eric Leo
  • Patent number: 11070006
    Abstract: A modular electrical connector facilitates low loss connections to components on a printed circuit board. A portion is of the connector is formed of one or more first type units with conductive elements designed to be attached to a printed circuit board. Signals passing through those units may be routed to components on the printed circuit board through traces in the board. One or more second type units may be integrated with the connector. Those units may be designed for attachment to a cable, which may provide signal paths to a location on the printed circuit board near relatively distant components.
    Type: Grant
    Filed: August 3, 2018
    Date of Patent: July 20, 2021
    Assignee: Amphenol Corporation
    Inventors: Mark W. Gailus, Allan Astbury, David Manter, Marc B. Cartier, Jr., Vysakh Sivarajan, John Robert Dunham
  • Publication number: 20210218198
    Abstract: An electrical connector module with openings in an insulative support selectively positioned to limit dielectric loss in a signal. The connector may include a first and second conductor including first and second sides between first and second edges. An insulative support holds the first conductor adjacent the second conductor and may have at least five pedestal portions, wherein the first pedestal portion contacts the first side of the first conductor, the second pedestal portion contacts the second side of the first conductor, the third pedestal portion contacts the first side of the second conductor, the fourth pedestal portion contacts the second side of the second conductor, and at least a portion of the fifth pedestal portion is disposed between two edges of the first and second conductors. The pedestal portions may have widths less than the widths of the first and second sides of the first and second conductors.
    Type: Application
    Filed: March 29, 2021
    Publication date: July 15, 2021
    Applicant: Amphenol Corporation
    Inventors: Marc B. Cartier, JR., John Robert Dunham, Vysakh Sivarajan, Mark W. Gailus, David Levine, Michael Joseph Snyder
  • Publication number: 20210194182
    Abstract: A cable termination that provides low signal distortion even at high frequencies. Conductive elements of the cable are fused to edges of signal conductors in a cable connector or other component terminating the cable. For terminating a differential pair, the conductive elements of the cable may be terminated to opposing edges of a pair of signal conductors in the cable termination. The conductive elements may be shaped such that the spacing between signal paths passing through the conductive elements of the cable and into the signal conductors of the cable termination is uniform.
    Type: Application
    Filed: March 8, 2021
    Publication date: June 24, 2021
    Applicant: Amphenol Corporation
    Inventors: Mark W. Gailus, Allan Astbury, David Manter, Marc B. Cartier, JR., Vysakh Sivarajan, John Robert Dunham
  • Publication number: 20210175670
    Abstract: A modular electrical connector with separately shielded signal conductor pairs. The connector may be assembled from modules, each containing a pair of signal conductors with surrounding partially or fully conductive material. Modules of different sizes may be assembled into wafers, which are then assembled into a connector. Wafers may include lossy material. In some embodiments, shielding members of two mating connectors may each have compliant members along their distal portions, such that, the shielding members engage at points of contact at multiple locations, some of which are adjacent the mating edge of each of the mating shielding members.
    Type: Application
    Filed: November 23, 2020
    Publication date: June 10, 2021
    Applicant: Amphenol Corporation
    Inventors: Marc B. Cartier, JR., John Robert Dunham, Mark W. Gailus, Donald A. Girard, JR., David Manter, Tom Pitten, Vysakh Sivarajan, Michael Joseph Snyder
  • Patent number: 10992086
    Abstract: A cable assembly comprising a termination with at least one conductive, compressible member and a conductive ground shield. The conductive, compressible member may be held within a connector module forming the termination such that the conductive compressive member is pressed against, and therefore makes electrical contact with, both an outer conductive layer of the cable and ground structures within the connector module. In some embodiments, these connections may be formed using a conductive, compressible member with an opening configured to receive the end of the cable therethrough. The conductive ground shield may be configured to compress the conductive, compressible member, and to cause the conductive, compressible member to electrically contact the cable's conductive layer. The conductive, compressible member may be formed from a compressible material and may comprise a plurality of conductive particulates configured to provide electrically conductive paths.
    Type: Grant
    Filed: April 22, 2019
    Date of Patent: April 27, 2021
    Assignee: Amphenol Corporation
    Inventors: Donald A. Girard, Jr., David Manter, Vysakh Sivarajan
  • Patent number: 10965065
    Abstract: An electrical connector module with openings in an insulative support selectively positioned to limit dielectric loss in a signal. The connector may include a first and second conductor including first and second sides between first and second edges. An insulative support holds the first conductor adjacent the second conductor and may have at least five pedestal portions, wherein the first pedestal portion contacts the first side of the first conductor, the second pedestal portion contacts the second side of the first conductor, the third pedestal portion contacts the first side of the second conductor, the fourth pedestal portion contacts the second side of the second conductor, and at least a portion of the fifth pedestal portion is disposed between two edges of the first and second conductors. The pedestal portions may have widths less than the widths of the first and second sides of the first and second conductors.
    Type: Grant
    Filed: March 2, 2020
    Date of Patent: March 30, 2021
    Assignee: Amphenol Corporation
    Inventors: Marc B. Cartier, Jr., John Robert Dunham, Vysakh Sivarajan, Mark W. Gailus, David Levine, Michael Joseph Snyder
  • Publication number: 20210076486
    Abstract: A printed circuit board includes a plurality of layers including attachment layers and routing layers; and via patterns formed in the plurality of layers, each of the via patterns including first and second signal vias forming a differential signal pair, the first and second signal vias extending through at least the attachment layers; ground vias extending through at least the attachment layers, the ground vias including ground conductors; and shadow vias located adjacent to each of the first and second signal vias, wherein the shadow vias are free of conductive material in the attachment layers. The printed circuit board may further include slot vias extending through the attachment layers and located between via patterns.
    Type: Application
    Filed: October 28, 2020
    Publication date: March 11, 2021
    Applicant: Amphenol Corporation
    Inventors: Mark W. Gailus, Marc B. Cartier, JR., Vysakh Sivarajan, David Levine
  • Patent number: 10944214
    Abstract: A cable termination that provides low signal distortion even at high frequencies. Conductive elements of the cable are fused to edges of signal conductors in a cable connector or other component terminating the cable. For terminating a differential pair, the conductive elements of the cable may be terminated to opposing edges of a pair of signal conductors in the cable termination. The conductive elements may be shaped such that the spacing between signal paths passing through the conductive elements of the cable and into the signal conductors of the cable termination is uniform.
    Type: Grant
    Filed: August 3, 2018
    Date of Patent: March 9, 2021
    Assignee: Amphenol Corporation
    Inventors: Mark W. Gailus, Allan Astbury, David Manter, Marc B. Cartier, Jr., Vysakh Sivarajan, John Robert Dunham
  • Patent number: 10847937
    Abstract: A modular electrical connector with separately shielded signal conductor pairs. The connector may be assembled from modules, each containing a pair of signal conductors with surrounding partially or fully conductive material. Modules of different sizes may be assembled into wafers, which are then assembled into a connector. Wafers may include lossy material. In some embodiments, shielding members of two mating connectors may each have compliant members along their distal portions, such that, the shielding members engage at points of contact at multiple locations, some of which are adjacent the mating edge of each of the mating shielding members.
    Type: Grant
    Filed: July 8, 2019
    Date of Patent: November 24, 2020
    Assignee: Amphenol Corporation
    Inventors: Marc B. Cartier, Jr., John Robert Dunham, Mark W. Gailus, Donald A. Girard, Jr., David Manter, Tom Pitten, Vysakh Sivarajan, Michael Joseph Snyder
  • Patent number: 10849218
    Abstract: A printed circuit board includes a plurality of layers including attachment layers and routing layers; and via patterns formed in the plurality of layers, each of the via patterns including first and second signal vias forming a differential signal pair, the first and second signal vias extending through at least the attachment layers; ground vias extending through at least the attachment layers, the ground vias including ground conductors; and shadow vias located adjacent to each of the first and second signal vias, wherein the shadow vias are free of conductive material in the attachment layers. The printed circuit board may further include slot vias extending through the attachment layers and located between via patterns.
    Type: Grant
    Filed: September 23, 2019
    Date of Patent: November 24, 2020
    Assignee: Amphenol Corporation
    Inventors: Mark W. Gailus, Marc B. Cartier, Jr., Vysakh Sivarajan, David Levine
  • Publication number: 20200303879
    Abstract: An interconnection system with a compliant shield between a connector and a substrate such as a PCB. The compliant shield may provide current flow paths between shields internal to the connector and ground structures of the PCB. The connector, compliant shield and PCB may be configured to provide current flow in locations relative to signal conductors that provide desirable signal integrity for signals carried by the signal conductors. In some embodiments, the current flow paths may be adjacent the signal conductors, offset in a transverse direction from an axis of a pair of conductors. Such paths may be created by tabs extending from connector shields. A compliant conductive member of the compliant shield may contact the tabs and a conductive pad on a surface of the PCB. Shadow vias, running from the surface pad to internal ground structures may be positioned adjacent the tip of the tabs.
    Type: Application
    Filed: June 10, 2020
    Publication date: September 24, 2020
    Applicant: Amphenol Corporation
    Inventors: Daniel B. Provencher, Mark W. Gailus, David Manter, Vysakh Sivarajan
  • Publication number: 20200274301
    Abstract: Connector assemblies that may be used to connect a cable to one or more contact tails of an electrical connector are disclosed. Some connector assemblies may include a wire extending from a cable and attached to an edge of a contact tail of a signal conductor. At least a portion of the wire may be flattened to form a planar surface that is attached to a corresponding planar surface of the edge of the contact tail. Moreover, some connector assemblies may include a wire extending from a cable that is attached to an edge of a contact tail via a metallurgical bond extending along at least a portion of an attachment interface between the wire and the contact tail.
    Type: Application
    Filed: February 20, 2020
    Publication date: August 27, 2020
    Applicant: Amphenol Corporation
    Inventors: David Manter, Vysakh Sivarajan
  • Publication number: 20200259297
    Abstract: A modular electrical connector with broad-side coupled signal conductors in a right angle intermediate portion. Broadside coupling provides balanced pairs for very high frequency operation. The connector may be assembled with multiple subassemblies, each of which may have multiple pairs of signal conductors. The subassemblies may be formed from an insulative portion having grooves in opposite sides into which the intermediate portions of signal conductors. Covers, holding the signal conductors in the grooves, may establish the position of the signal conductors relative to reference conductors at the exterior of subassembly, so as to provide a controlled impedance. Lossy material may be positioned between the pairs in a subassembly and/or may contact the reference conductors of the subassemblies, and the lossy material of the subassemblies may in turn be connected with a conductive structure.
    Type: Application
    Filed: April 24, 2020
    Publication date: August 13, 2020
    Applicant: Amphenol Corporation
    Inventors: Marc B. Cartier, JR., John Robert Dunham, Mark W. Gailus, Donald A. Girard, JR., Brian Kirk, David Levine, Vysakh Sivarajan
  • Patent number: 10720735
    Abstract: An interconnection system with a compliant shield between a connector and a substrate such as a PCB. The compliant shield may provide current flow paths between shields internal to the connector and ground structures of the PCB. The connector, compliant shield and PCB may be configured to provide current flow in locations relative to signal conductors that provide desirable signal integrity for signals carried by the signal conductors. In some embodiments, the current flow paths may be adjacent the signal conductors, offset in a transverse direction from an axis of a pair of conductors. Such paths may be created by tabs extending from connector shields. A compliant conductive member of the compliant shield may contact the tabs and a conductive pad on a surface of the PCB. Shadow vias, running from the surface pad to internal ground structures may be positioned adjacent the tip of the tabs.
    Type: Grant
    Filed: February 11, 2019
    Date of Patent: July 21, 2020
    Assignee: Amphenol Corporation
    Inventors: Daniel B. Provencher, Mark W. Gailus, David Manter, Vysakh Sivarajan
  • Patent number: 10707626
    Abstract: A modular electrical connector with broad-side coupled signal conductors in a right angle intermediate portion and edge coupled end portions. Broadside coupling provides balanced pairs for very high frequency operation, while edge coupling provides a high density interconnection system at low cost. Each module has separately shielded signal conductor pairs. The shielding is shaped to avoid or suppress undesirable propagation modes within an enclosure formed by shielding per module. Lossy material is selectively placed within and outside the shielding per module to likewise avoid or suppress unwanted signal propagation.
    Type: Grant
    Filed: January 29, 2018
    Date of Patent: July 7, 2020
    Assignee: Amphenol Corporation
    Inventors: Marc B. Cartier, Jr., John Robert Dunham, Mark W. Gailus, Donald A. Girard, Jr., Brian Kirk, David Levine, Vysakh Sivarajan
  • Publication number: 20200203893
    Abstract: An electrical connector module with openings in an insulative support selectively positioned to limit dielectric loss in a signal. The connector may include a first and second conductor including first and second sides between first and second edges. An insulative support holds the first conductor adjacent the second conductor and may have at least five pedestal portions, wherein the first pedestal portion contacts the first side of the first conductor, the second pedestal portion contacts the second side of the first conductor, the third pedestal portion contacts the first side of the second conductor, the fourth pedestal portion contacts the second side of the second conductor, and at least a portion of the fifth pedestal portion is disposed between two edges of the first and second conductors. The pedestal portions may have widths less than the widths of the first and second sides of the first and second conductors.
    Type: Application
    Filed: March 2, 2020
    Publication date: June 25, 2020
    Applicant: Amphenol Corporation
    Inventors: Marc B. Cartier, JR., John Robert Dunham, Vysakh Sivarajan, Mark W. Gailus, David Levine, Michael Joseph Snyder
  • Patent number: D892058
    Type: Grant
    Filed: October 12, 2018
    Date of Patent: August 4, 2020
    Assignee: Amphenol Corporation
    Inventors: Marc B. Cartier, Jr., Mark W. Gailus, David Levine, Vysakh Sivarajan, John Robert Dunham, John Pitten
  • Patent number: D908633
    Type: Grant
    Filed: October 12, 2018
    Date of Patent: January 26, 2021
    Assignee: Amphenol Corporation
    Inventors: Marc B. Cartier, Jr., Mark W. Gailus, David Levine, Vysakh Sivarajan, John Robert Dunham, John Pitten