Patents by Inventor Sankerlingam Rajendran
Sankerlingam Rajendran 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).
-
Patent number: 11317505Abstract: A conductive network fabrication process is provided and includes filling a hole formed in a substrate with dielectric material, laminating films of the dielectric material on either side of the substrate, opening a through-hole through the dielectric material at the hole, depositing a conformal coating of dielectric material onto an interior surface of the through-hole and executing seed layer metallization onto the conformal coating in the through-hole to form a seed layer extending continuously along an entire length of the through-hole.Type: GrantFiled: February 18, 2021Date of Patent: April 26, 2022Assignee: RAYTHEON COMPANYInventors: Brian K. Atwood, Thang D. Nguyen, Sankerlingam Rajendran, Douglas R. Gentry, Walter B. Aschenbeck, Jr.
-
Publication number: 20210321511Abstract: A conductive network fabrication process is provided and includes filling a hole formed in a substrate with dielectric material, laminating films of the dielectric material on either side of the substrate, opening a through-hole through the dielectric material at the hole, depositing a conformal coating of dielectric material onto an interior surface of the through-hole and executing seed layer metallization onto the conformal coating in the through-hole to form a seed layer extending continuously along an entire length of the through-hole.Type: ApplicationFiled: February 18, 2021Publication date: October 14, 2021Inventors: Brian K. Atwood, Thang D. Nguyen, Sankerlingam Rajendran, Douglas R. Gentry, Walter B. Aschenbeck, JR.
-
Patent number: 11096271Abstract: A conductive network fabrication process is provided and includes filling a hole formed in a substrate with dielectric material, laminating films of the dielectric material on either side of the substrate, opening a through-hole through the dielectric material at the hole, depositing a conformal coating of dielectric material onto an interior surface of the through-hole and executing seed layer metallization onto the conformal coating in the through-hole to form a seed layer extending continuously along an entire length of the through-hole.Type: GrantFiled: April 9, 2020Date of Patent: August 17, 2021Assignee: RAYTHEON COMPANYInventors: Brian K. Atwood, Thang D. Nguyen, Sankerlingam Rajendran, Douglas R. Gentry, Walter B. Aschenbeck, Jr.
-
Patent number: 10727558Abstract: A circulator is provided, comprising, first second and third conductors forming three equally spaced junctions and a permanent magnet configured to apply a shaped bias magnetic field to a ferrite resonator in operable communication with the first, second, and third conductors. The permanent magnet comprises a substantially planar monolithic structure having defined thereon at least first and second substantially concentric regions having first and second respective magnetic field strength levels, wherein the second magnetic field strength level is lower than the first magnetic field strength level. The first and second magnetic field strength levels are configured to cooperate to shape an external bias magnetic field of the permanent magnet to counteract at least a portion of a demagnetizing effect resulting from of an overall shape of the ferrite resonator, to achieve a substantially uniform internal magnetic bias within at least a portion of the ferrite resonator.Type: GrantFiled: January 15, 2020Date of Patent: July 28, 2020Assignee: Raytheon CompanyInventors: Sankerlingam Rajendran, James A. Carr, Cary C. Kyhl, Karl L. Worthen
-
Publication number: 20200153072Abstract: A circulator is provided, comprising, first second and third conductors forming three equally spaced junctions and a permanent magnet configured to apply a shaped bias magnetic field to a ferrite resonator in operable communication with the first, second, and third conductors. The permanent magnet comprises a substantially planar monolithic structure having defined thereon at least first and second substantially concentric regions having first and second respective magnetic field strength levels, wherein the second magnetic field strength level is lower than the first magnetic field strength level. The first and second magnetic field strength levels are configured to cooperate to shape an external bias magnetic field of the permanent magnet to counteract at least a portion of a demagnetizing effect resulting from of an overall shape of the ferrite resonator, to achieve a substantially uniform internal magnetic bias within at least a portion of the ferrite resonator.Type: ApplicationFiled: January 15, 2020Publication date: May 14, 2020Applicant: Raytheon CompanyInventors: Sankerlingam Rajendran, James A. Carr, Cary C. Kyhl, Karl L. Worthen
-
Patent number: 10573948Abstract: A circulator is provided, comprising, first second and third conductors forming three equally spaced junctions and a permanent magnet configured to apply a shaped bias magnetic field to a ferrite resonator in operable communication with the first, second, and third conductors. The permanent magnet comprises a substantially planar monolithic structure having defined thereon at least first and second substantially concentric regions having first and second respective magnetic field strength levels, wherein the second magnetic field strength level is lower than the first magnetic field strength level. The first and second magnetic field strength levels are configured to cooperate to shape an external bias magnetic field of the permanent magnet to counteract at least a portion of a demagnetizing effect resulting from of an overall shape of the ferrite resonator, to achieve a substantially uniform internal magnetic bias within at least a portion of the ferrite resonator.Type: GrantFiled: August 6, 2019Date of Patent: February 25, 2020Assignee: Raytheon CompanyInventors: Sankerlingam Rajendran, James A. Carr, Cary C. Kyhl, Karl L. Worthen
-
Publication number: 20190386371Abstract: A method for making a composite substrate circulator comprising disposing a plurality of sleeves about a plurality of rods, disposing the plurality of rods and the plurality of sleeves in a plurality of openings in a block to form an assembly, and dividing the assembly to form a plurality of plates. Each plate includes a portion of the plurality of sleeves and the plurality of rods. The magnetic saturation (4PiMs) values of the rods and sleeves are chosen to decrease radially (rod has the highest 4PiMs).Type: ApplicationFiled: August 28, 2019Publication date: December 19, 2019Inventors: Mark B. Hanna, Sankerlingam Rajendran
-
Publication number: 20190363416Abstract: A circulator is provided, comprising, first second and third conductors forming three equally spaced junctions and a permanent magnet configured to apply a shaped bias magnetic field to a ferrite resonator in operable communication with the first, second, and third conductors. The permanent magnet comprises a substantially planar monolithic structure having defined thereon at least first and second substantially concentric regions having first and second respective magnetic field strength levels, wherein the second magnetic field strength level is lower than the first magnetic field strength level. The first and second magnetic field strength levels are configured to cooperate to shape an external bias magnetic field of the permanent magnet to counteract at least a portion of a demagnetizing effect resulting from of an overall shape of the ferrite resonator, to achieve a substantially uniform internal magnetic bias within at least a portion of the ferrite resonator.Type: ApplicationFiled: August 6, 2019Publication date: November 28, 2019Applicant: Raytheon CompanyInventors: Sankerlingam Rajendran, James A. Carr, Cary C. Kyhl, Karl L. Worthen
-
Patent number: 10431865Abstract: A circulator is provided, comprising, first second and third conductors forming three equally spaced junctions and a permanent magnet configured to apply a shaped bias magnetic field to a ferrite resonator in operable communication with the first, second, and third conductors. The permanent magnet comprises a substantially planar monolithic structure having defined thereon at least first and second substantially concentric regions having first and second respective magnetic field strength levels, wherein the second magnetic field strength level is lower than the first magnetic field strength level. The first and second magnetic field strength levels are configured to cooperate to shape an external bias magnetic field of the permanent magnet to counteract at least a portion of a demagnetizing effect resulting from of an overall shape of the ferrite resonator, to achieve a substantially uniform internal magnetic bias within at least a portion of the ferrite resonator.Type: GrantFiled: August 20, 2018Date of Patent: October 1, 2019Assignee: Raytheon CompanyInventors: Sankerlingam Rajendran, James A. Carr, Cary C. Kyhl, Karl L. Worthen
-
Patent number: 10403958Abstract: A method for making a composite substrate circulator comprising disposing a plurality of sleeves about a plurality of rods, disposing the plurality of rods and the plurality of sleeves in a plurality of openings in a block to form an assembly, and dividing the assembly to form a plurality of plates. Each plate includes a portion of the plurality of sleeves and the plurality of rods. The magnetic saturation (4PiMs) values of the rods and sleeves are chosen to decrease radially (rod has the highest 4PiMs).Type: GrantFiled: December 19, 2016Date of Patent: September 3, 2019Assignee: Raytheon CompanyInventors: Mark B. Hanna, Sankerlingam Rajendran
-
Patent number: 10356914Abstract: A method of lamination of dielectric circuit materials is provided. The method includes preparing first and second circuit layers of dielectric materials, stacking the first and second circuit layers with circuit trace elements interposed between the first and second circuit layers and ultrasonically welding the second circuit layer onto the first circuit layer around the circuit trace elements.Type: GrantFiled: October 21, 2016Date of Patent: July 16, 2019Assignee: RAYTHEON COMPANYInventors: Patrick J. Kocurek, Sankerlingam Rajendran
-
Publication number: 20190027799Abstract: A circulator is provided, comprising, first second and third conductors forming three equally spaced junctions and a permanent magnet configured to apply a shaped bias magnetic field to a ferrite resonator in operable communication with the first, second, and third conductors. The permanent magnet comprises a substantially planar monolithic structure having defined thereon at least first and second substantially concentric regions having first and second respective magnetic field strength levels, wherein the second magnetic field strength level is lower than the first magnetic field strength level. The first and second magnetic field strength levels are configured to cooperate to shape an external bias magnetic field of the permanent magnet to counteract at least a portion of a demagnetizing effect resulting from of an overall shape of the ferrite resonator, to achieve a substantially uniform internal magnetic bias within at least a portion of the ferrite resonator.Type: ApplicationFiled: August 20, 2018Publication date: January 24, 2019Applicant: Raytheon CompanyInventors: Sankerlingam Rajendran, James A. Carr, Cary C. Kyhl, Karl L. Worthen
-
Patent number: 10096879Abstract: A circulator is provided, comprising, first second and third conductors forming three equally spaced junctions and a permanent magnet configured to apply a shaped bias magnetic field to a ferrite resonator in operable communication with the first, second, and third conductors. The permanent magnet comprises a substantially planar monolithic structure having defined thereon at least first and second substantially concentric regions having first and second respective magnetic field strength levels, wherein the second magnetic field strength level is lower than the first magnetic field strength level. The first and second magnetic field strength levels are configured to cooperate to shape an external bias magnetic field of the permanent magnet to counteract at least a portion of a demagnetizing effect resulting from of an overall shape of the ferrite resonator, to achieve a substantially uniform internal magnetic bias within at least a portion of the ferrite resonator.Type: GrantFiled: March 7, 2016Date of Patent: October 9, 2018Assignee: Raytheon CompanyInventors: Sankerlingam Rajendran, James A. Carr, Cary C. Kyhl, Karl L. Worthen
-
Publication number: 20180175473Abstract: A method for making a composite substrate circulator comprising disposing a plurality of sleeves about a plurality of rods, disposing the plurality of rods and the plurality of sleeves in a plurality of openings in a block to form an assembly, and dividing the assembly to form a plurality of plates. The magnetic saturation (4PiMs) values of the rods and sleeves are chosen to decrease radially (rod has the highest 4PiMs). In addition, a method for making a composite substrate circulator component can include disposing a sleeve about a rod, and disposing the rod and the sleeve in an opening in a block to form an assembly. The rod and/or the sleeve can have a plurality of longitudinally spaced recesses. Additionally, the method can include dividing the assembly at the longitudinally spaced recesses to form a plurality of plates.Type: ApplicationFiled: December 19, 2016Publication date: June 21, 2018Inventors: Mark B. Hanna, Sankerlingam Rajendran
-
Patent number: 9899717Abstract: A stacked stripline circulator includes a first ferrite disc, a second ferrite disc, a first substrate having a metalized edge with the first ferrite disc disposed in the first substrate, a second substrate having a metalized edge with the second ferrite disc disposed in the second substrate, a first metalized pattern defining ports of a circulator disposed on the first substrate, the first metalized pattern comprising copper, a second metalized pattern defining ports of a circulator disposed on the second substrate, the second metalized pattern comprising copper, and a bonding ring bonding the metalized edge of the first substrate with the metalized edge of the second substrate.Type: GrantFiled: October 13, 2015Date of Patent: February 20, 2018Assignee: RAYTHEON COMPANYInventors: John M. Bedinger, Sankerlingam Rajendran
-
Publication number: 20170290172Abstract: A method of lamination of dielectric circuit materials is provided. The method includes preparing first and second circuit layers of dielectric materials, stacking the first and second circuit layers with circuit trace elements interposed between the first and second circuit layers and ultrasonically welding the second circuit layer onto the first circuit layer around the circuit trace elements.Type: ApplicationFiled: October 21, 2016Publication date: October 5, 2017Inventors: Patrick J. Kocurek, Sankerlingam Rajendran
-
Publication number: 20170256836Abstract: A circulator is provided, comprising, first second and third conductors forming three equally spaced junctions and a permanent magnet configured to apply a shaped bias magnetic field to a ferrite resonator in operable communication with the first, second, and third conductors. The permanent magnet comprises a substantially planar monolithic structure having defined thereon at least first and second substantially concentric regions having first and second respective magnetic field strength levels, wherein the second magnetic field strength level is lower than the first magnetic field strength level. The first and second magnetic field strength levels are configured to cooperate to shape an external bias magnetic field of the permanent magnet to counteract at least a portion of a demagnetizing effect resulting from of an overall shape of the ferrite resonator, to achieve a substantially uniform internal magnetic bias within at least a portion of the ferrite resonator.Type: ApplicationFiled: March 7, 2016Publication date: September 7, 2017Applicant: Raytheon CompanyInventors: Sankerlingam Rajendran, James A. Carr, Cary C. Kyhl, Karl L. Worthen
-
Publication number: 20170104256Abstract: A stacked stripling circulator includes a first ferrite disc, a second ferrite disc, a first substrate having a metalized edge with the first ferrite disc disposed in the first substrate, a second substrate having a metalized edge with the second ferrite disc disposed in the second substrate, a first metalized pattern defining ports of a circulator disposed on the first substrata, the first metalized pattern comprising copper, a second metalized pattern defining ports of a circulator disposed on the second substrate, the second metalized pattern comprising copper, and a bonding ring bonding the metalized edge of the first substrate with the metalized edge of the second substrate.Type: ApplicationFiled: October 13, 2015Publication date: April 13, 2017Applicant: RAYTHEON COMPANYInventors: John M. Bedinger, Sankerlingam Rajendran
-
Patent number: 8963313Abstract: Integrating a semiconductor component with a substrate through a low loss interconnection formed through adaptive patterning includes forming a cavity in the substrate, placing the semiconductor component therein, filling a gap between the semiconductor component and substrate with a fill of same or similar dielectric constant as that of the substrate and adaptively patterning a low loss interconnection on the fill and extending between the contacts of the semiconductor component and the electrical traces on the substrate. The contacts and leads are located and adjoined using an adaptive patterning technique that places and forms a low loss radio frequency transmission line that compensates for any misalignment between the semiconductor component contacts and the substrate leads.Type: GrantFiled: December 22, 2011Date of Patent: February 24, 2015Assignee: Raytheon CompanyInventors: Sankerlingam Rajendran, Monte R. Sanchez, Susan M. Eshelman, Douglas R. Gentry, Thomas A. Hanft
-
Patent number: 7979144Abstract: According to one embodiment, a pattern forming system includes a patterning tool, a multi-axis robot, and a simulation tool that are coupled to a pattern forming tool that is executed on a suitable computing system. The pattern forming tool receives a contour measurement from the patterning tool and transmits the measured contour to the simulation tool to model the electrical characteristics of a conductive pattern or a dielectric pattern on the measured contour. Upon receipt of the modeled characteristics, the pattern forming system may adjust one or more dimensions of the pattern according to the model, and subsequently create, using the patterning tool, the corrected pattern on the surface.Type: GrantFiled: October 10, 2008Date of Patent: July 12, 2011Assignee: Raytheon CompanyInventors: Sankerlingam Rajendran, Billy D. Ables