Patents by Inventor Roberto W. Alm

Roberto W. Alm 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: 8866291
    Abstract: A microstrip MMIC chip flip-chip mounted to a printed circuit board with conductive vias passing through the chip to electrical connect a ground plane of the microstrip MMIC chip to a ground conductor of the printed circuit board.
    Type: Grant
    Filed: February 10, 2012
    Date of Patent: October 21, 2014
    Assignee: Raytheon Company
    Inventor: Roberto W. Alm
  • Publication number: 20130208434
    Abstract: A microstrip MMIC chip flip-chip mounted to a printed circuit board with conductive vias passing through the chip to electrical connect a ground plane of the microstrip MMIC chip to a ground conductor of the printed circuit board.
    Type: Application
    Filed: February 10, 2012
    Publication date: August 15, 2013
    Applicant: Raytheon Company
    Inventor: Roberto W. Alm
  • Patent number: 8339790
    Abstract: A monolithic microwave integrated circuit structure having a semiconductor substrate structure with a plurality of active devices and a microwave transmission line having an input section, an output section and a interconnecting section electrically interconnecting the active devices on one surface and a metal layer on an opposite surface overlaying the interconnection section and absent from overlaying at least one of the input section and the output section.
    Type: Grant
    Filed: September 10, 2010
    Date of Patent: December 25, 2012
    Assignee: Raytheon Company
    Inventors: Shahed Reza, Edward Swiderski, Roberto W. Alm
  • Patent number: 8279131
    Abstract: A mixed-signal, multilayer printed wiring board fabricated in a single lamination step is described. The PWB includes one or more radio frequency (RF) interconnects between different circuit layers on different circuit boards which make up the PWB. The PWB includes a number of unit cells with radiating elements and an RF cage disposed around each unit cell to isolate the unit cell. A plurality of flip-chip circuits are disposed on an external surface of the PWB and a heat sink can be disposed over the flip chip components.
    Type: Grant
    Filed: June 15, 2009
    Date of Patent: October 2, 2012
    Assignee: Raytheon Company
    Inventors: Angelo M Puzella, Joseph A. Licciardello, Patricia S. Dupuis, John B. Francis, Kenneth S. Komisarek, Donald A. Bozza, Roberto W. Alm
  • Publication number: 20120063097
    Abstract: A monolithic microwave integrated circuit structure having a semiconductor substrate structure with a plurality of active devices and a microwave transmission line having an input section, an output section and a interconnecting section electrically interconnecting the active devices on one surface and a metal layer on an opposite surface overlaying the interconnection section and absent from overlaying at least one of the input section and the output section.
    Type: Application
    Filed: September 10, 2010
    Publication date: March 15, 2012
    Applicant: Raytheon Company
    Inventors: Shahed Reza, Edward Swiderski, Roberto W. Alm
  • Publication number: 20100066631
    Abstract: A mixed-signal, multilayer printed wiring board fabricated in a single lamination step is described. The PWB includes one or more radio frequency (RF) interconnects between different circuit layers on different circuit boards which make up the PWB. The PWB includes a number of unit cells with radiating elements and an RF cage disposed around each unit cell to isolate the unit cell. A plurality of flip-chip circuits are disposed on an external surface of the PWB and a heat sink can be disposed over the flip chip components.
    Type: Application
    Filed: June 15, 2009
    Publication date: March 18, 2010
    Applicant: Raytheon Company
    Inventors: Angelo M. Puzella, Joseph A. Licciardello, Patricia S. Dupuis, John B. Francis, Kenneth S. Komisarek, Donald A. Bozza, Roberto W. Alm
  • Publication number: 20090256748
    Abstract: A phased array system having a plurality of array elements, a beam steering computer; at plurality of attenuation and phase control elements for controlling attenuation and phase of energy passing through such attenuation and phase control elements, and a feed network for feeding phase and attenuation data to the plurality of attenuation and phase control elements. The feed network includes at least one slave, wireless receive unit connected to a corresponding one of the plurality of attenuation and phase control elements; and a master wireless transmit unit coupled to the beam steering computer and in wireless communication with the at least one of the plurality of slave, wireless receive units, for transmitting the phase and attenuation data from the beam steering unit to the at least one of the plurality of attenuation and phase control elements. The slave wireless receive unit and the master transmit unit are a spread spectrum communication system.
    Type: Application
    Filed: April 14, 2008
    Publication date: October 15, 2009
    Inventors: Roberto W. Alm, Angelo M. Puzella, Mark E. Stading
  • Patent number: 7335931
    Abstract: A field effect transistor structure includes a single crystal substrate having: a source, gate and drain electrodes disposed on an upper surface of the substrate, the gate electrode having a region thereof disposed between a region of the drain electrode and a region of the source electrode; a ground conductor disposed on a lower surface of the substrate; a plurality of electrically conductive vias passing through the substrate, each one of the vias having one end electrically connected to a different region of the ground conductor and having another end electrically connected to the gate electrode. The plurality of electrically conductive vias provide parallel and symmetric connections between the gate electrode and the ground conductor.
    Type: Grant
    Filed: December 17, 2004
    Date of Patent: February 26, 2008
    Assignee: Raytheon Company
    Inventor: Roberto W. Alm
  • Patent number: 5396658
    Abstract: A radio frequency millimeter-wave signal antenna and mixer system includes a dielectric substrate having a generally planar upper surface, and a ground-plane layer of conductive material disposed below the upper surface. This ground plane layer includes a plurality of spaced-apart low conductivity sections or windows to allow passage therethrough of radio frequency signals received at a surface of the substrate. A plurality of antennae are disposed on the upper surface of the substrate, with each antenna being positioned over a respective one of the windows in the ground-plane layer. A plurality of mixers are also disposed on the upper surface of the substrate, each adjacent a respective antenna for receiving radio frequency signals therefrom and for producing intermediate frequency signals.
    Type: Grant
    Filed: June 14, 1993
    Date of Patent: March 7, 1995
    Assignee: University of Utah Research Foundation
    Inventors: R. Jennifer Hwu, J. Mark Baird, Roberto W. Alm