Patents Examined by Dean O Takaoka
  • Patent number: 11329630
    Abstract: A switch module includes a first terminal, first and second filters, and first and second switches. Impedance of the first filter for a signal in a stop band is capacitive. When the first switch is turned OFF, impedance of the first switch is capacitive, and impedance of the first filter seen from an end portion of the first switch connected to the first filter is not in a short state and impedance of the first filter seen from the first terminal is in an open state.
    Type: Grant
    Filed: April 15, 2020
    Date of Patent: May 10, 2022
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Takayuki Tomita, Daisuke Watanabe
  • Patent number: 11329626
    Abstract: Bandpass filters are disclosed. A bandpass filter includes a plurality of series resonators and a plurality of shunt resonators. The series resonators are connected in series between a first port and a second port. The plurality of series resonators includes a first series resonator and a second series resonator connected at a node. The plurality of shunt resonators includes a first shunt resonator coupled between the node and a ground. A capacitor bridges the first and second series resonators.
    Type: Grant
    Filed: November 27, 2019
    Date of Patent: May 10, 2022
    Assignee: Resonant Inc.
    Inventor: Douglas Jachowski
  • Patent number: 11322813
    Abstract: A band pass filter (1) includes two resonators (8) and (10) including respectively linear conductors (9) and (11) disposed inside a dielectric substrate (2), and a pair of input-output lines (13) and (14) to which the two resonators (8) and (10) are connected in parallel. Both ends of the linear conductor (9) of the resonator (8) are left open. The resonator (10) includes vias (12A) and (12B) through which both ends of the linear conductor (11) of the resonator (10) are connected to a ground conductor (6) on a first surface (2A) of the dielectric substrate (2). The pair of input-output lines (13) and (14) include respectively vias (15A) and (15B) for connection to a ground conductor (7) that is disposed on a second surface (2B) of the dielectric substrate (2).
    Type: Grant
    Filed: March 23, 2021
    Date of Patent: May 3, 2022
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Toshiro Hiratsuka, Yoshinori Taguchi
  • Patent number: 11322812
    Abstract: The invention relates to a rotary joint which comprises two components mounted for rotation relative to one another about an axis of rotation, and each comprising electrically conductive material and jointly enclosing at least one intermediate gap, which is in the form of a capacitive gap for the purpose of transmitting electrical signals and/or energy. The two components are mounted by means of at least one plain bearing such that they are axially fixed longitudinally relative to the axis of rotation and can be rotated relative to one another about the axis of rotation. The plain bearing has at least one plain bearing gap, at least some regions of which correspond to the capacitive gap. The invention is characterized in that the surface of at least one of the two components has, at least in the region of the capacitive gap, the electrically conductive material with an electrically insulating layer in the form of a metal oxide layer.
    Type: Grant
    Filed: January 14, 2020
    Date of Patent: May 3, 2022
    Assignee: SPINNER GMBH
    Inventors: Thomas Pröckl, Friedrich Jakob, Bernhard Rimsl
  • Patent number: 11322817
    Abstract: A directional coupler includes: a main line; a sub line; a first switch, a first end of which is directly connected to one end of the sub line and a second end of which is connected to a first signal path that extends to an isolation port (ISO), which is a first port; and a second switch, a first end of which is directly connected to another end of the sub line and a second end of which is connected to a second signal path that extends to a coupling port (CPL), which is a second port.
    Type: Grant
    Filed: October 22, 2020
    Date of Patent: May 3, 2022
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Daisuke Tokuda, Hisanori Murase
  • Patent number: 11322815
    Abstract: Disclosed are various embodiments for a pre-matched power resistance system including a pre-matching network for use with a passive electrical device, such as a Lange coupler or a Wilkinson power splitter, where the system provides a predetermined input impedance across a predetermined target bandwidth. The pre-matched power resistance system network further includes an on-chip thin film resistor disposed on a substrate comprising a plurality of coplanar sub-resistors electrically isolated from one another and a manifold portion comprising a plurality of manifold traces in a tiered arrangement terminating in an electrical connection to a respective one of the coplanar sub-resistors.
    Type: Grant
    Filed: April 22, 2020
    Date of Patent: May 3, 2022
    Assignee: MACOM TECHNOLOGY SOLUTIONS HOLDINGS, INC.
    Inventor: Thomas Winslow
  • Patent number: 11323094
    Abstract: Networks and filters are disclosed. A network includes a resonator that exhibits both a resonance and an anti-resonance and an inverter circuit connected in parallel with the resonator to form a composite resonator. An anti-resonant frequency of the composite resonator is different from the resonator's anti-resonant frequency.
    Type: Grant
    Filed: December 2, 2019
    Date of Patent: May 3, 2022
    Inventors: Douglas Jachowski, Gregory L. Hey-Shipton
  • Patent number: 11316499
    Abstract: A filter device includes: a common terminal; a first input/output terminal; a second input/output terminal; a first filter connected to a first path that connects the common terminal and the first input/output terminal, and having a passband that is a first band; a second filter connected to a second path that connects the common terminal and the second input/output terminal, and having a passband that is a second band having a frequency range that is different from and does not overlap a frequency range of the first band; a first switch element connected between a first node on the first path between the first filter and the first input/output terminal and a second node on the second path between the second filter and the second input/output terminal; and a second switch element on the second path, which is connected between the second node and the second input/output terminal.
    Type: Grant
    Filed: February 25, 2020
    Date of Patent: April 26, 2022
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventor: Koji Nosaka
  • Patent number: 11309614
    Abstract: A device for transmitting a signal with the aid of waveguides in rotating systems. The device includes at least one transmitting waveguide and at least one receiving waveguide. The at least one receiving waveguide and the at least one transmitting waveguide being divided into multiple radially distributed segments. The radially distributed segments of the at least one receiving waveguide each include a tap. An adder for adding the signals obtained with the aid of the taps of the radially distributed segments of the at least one receiving waveguide is also provided.
    Type: Grant
    Filed: January 17, 2019
    Date of Patent: April 19, 2022
    Assignee: Robert Bosch GmbH
    Inventors: Kai Worms, Ludwig Brechter
  • Patent number: 11309617
    Abstract: A directional coupler (1) includes a substrate (10), a main line (20) formed directly or indirectly on the substrate (10), sub-lines (21, 22 and 23) at least part of each of which is formed directly or indirectly on the substrate (10) along the main line (20), a switch (30) switching connections among end portions of the plurality of sub-lines (21, 22 and 23), and detection output terminals (FWD and REV) connected to the sub-line (21), wherein, when looking at the substrate (10) in plan, the end portions of the sub-lines (21, 22 and 23) are disposed on the same side as the detection output terminals (FWD and REV) relative to the main line (20), and the sub-line (21) to which the detection output terminals (FWD and REV) are connected is overlapped with or surrounded by the sub-lines (22 and 23).
    Type: Grant
    Filed: August 4, 2020
    Date of Patent: April 19, 2022
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Daisuke Tokuda, Yasushi Shigeno
  • Patent number: 11296672
    Abstract: A surface acoustic wave device includes a quartz layer, an amorphous silicon oxide layer, a piezoelectric layer, and an Inter Digital Transducer. The amorphous silicon oxide layer is laminated on the quartz layer. The piezoelectric layer is laminated on the amorphous silicon oxide layer. The Inter Digital Transducer is formed on the piezoelectric layer. The Inter Digital Transducer excites a surface acoustic wave on the piezoelectric layer. Assuming that the surface acoustic wave has a wavelength ?, 0.1?a thickness of the amorphous silicon oxide layer/??1, and 0.08<a thickness of the piezoelectric layer/??1.
    Type: Grant
    Filed: February 26, 2019
    Date of Patent: April 5, 2022
    Assignee: NDK SAW Devices Co., Ltd.
    Inventors: Yuya Hiratsuka, Kazuhiro Hirota
  • Patent number: 11296392
    Abstract: A magnetic structure for an electromagnetic resonator is provided. The magnetic structure comprises at least a solenoid and a permanent magnet, wherein the solenoid and the permanent magnet are concentrically arranged to each other such that the magnetic field lines provided by the permanent magnet are at least essentially perpendicular to magnetic field lines of a magnetic field generated by the solenoid. The arrangement of the permanent magnet and the solenoid may be housed by an element with a high magnetic permeability.
    Type: Grant
    Filed: September 17, 2020
    Date of Patent: April 5, 2022
    Assignee: ROHDE & SCHWARZ GMBH & CO. KG
    Inventor: Florian Huber
  • Patent number: 11290084
    Abstract: A method and apparatus for modifying or controlling a resonator connected to a signal loop having an input (18828), an output (18822), and a closed loop frequency response. The signal loop has a primary resonator (18810) having a primary frequency response. There is at least one adjustable resonator (18812) having an adjustable frequency (f) and a secondary Q-factor. An adjustable scaling block (18824) applies a gain factor (g). A controller is connected to the at least one adjustable resonator (18812) and the adjustable scaling block (18824). The controller has instructions to adjust the closed loop frequency response toward a desired closed loop frequency response by controlling the adjustable frequency (f) of the at least one adjustable resonator (18812) and the gain factor (g) of the adjustable scaling block (18824).
    Type: Grant
    Filed: May 24, 2018
    Date of Patent: March 29, 2022
    Inventors: Jorgen Staal Nielsen, Richard Nichols
  • Patent number: 11289784
    Abstract: A multipaction-proof waveguide filter includes a main cavity and a number of corrugations extending from the main cavity. The main cavity includes corrugation interconnect regions between the plurality of corrugations. The corrugation interconnect regions include sloped surfaces, and the corrugations include flared nonparallel sidewalk. Due to the introduced sloped surfaces and flares, an increased Q is achieved, improved roll off is observed and multipaction risks are mitigated.
    Type: Grant
    Filed: July 10, 2020
    Date of Patent: March 29, 2022
    Assignee: Lockheed Martin Corporation
    Inventors: Jason Stewart Wrigley, Andrew Jason Kee
  • Patent number: 11290083
    Abstract: An acoustic wave filter device is disclosed. The device includes an acoustic wave filter element, and a first resonator and a second resonator coupled to the acoustic wave filter element. The acoustic wave filter element includes interdigitated input electrodes and output electrodes located on a top surface of a piezoelectric layer and an counter-electrode on the bottom surface of the piezoelectric layer. Each of the first and the second resonators includes a resonator electrode on the top surface of the piezoelectric layer and a resonator counter-electrode on the bottom surface of the piezoelectric layer. The first resonator has a first notch in resonator impedance at a first frequency. The second resonator includes a first mass loading layer on the second resonator electrode such that the second resonator has a second notch in resonator impedance at a second frequency that is different from the first frequency.
    Type: Grant
    Filed: September 28, 2020
    Date of Patent: March 29, 2022
    Assignee: VTT Technical Research Centre of Finland Ltd
    Inventors: Tapani Makkonen, Markku Ylilammi, Tuomas Pensala, James Dekker
  • Patent number: 11283147
    Abstract: A directional coupler includes first to fourth terminals, a first line, a second line, a ground conductor portion, and a stack. The first line includes a first center portion, a first connecting portion, and a second connecting portion. The second line includes a second center portion, a third connecting portion, and a fourth connecting portion. A distance between the first and third connecting portions and a distance between the second and fourth connecting portions decrease toward the first and second center portions. The first to fourth terminals are located on a bottom surface of the stack.
    Type: Grant
    Filed: January 22, 2021
    Date of Patent: March 22, 2022
    Assignee: TDK CORPORATION
    Inventors: Yuta Ashida, Masahiro Tatematsu, Shuhei Sawaguchi, Shigemitsu Tomaki
  • Patent number: 11283428
    Abstract: A radio frequency (RF) filter having a first passband and including a first circuit connected to a first node and a second node disposed on a path that connects a first terminal and a second terminal, and a second circuit connected to the first node and the second node. The first circuit includes a first filter having a second passband that includes a portion of a frequency range of the first passband and a bandwidth narrower than a bandwidth of the first passband. The second circuit includes a second filter having a third passband that includes a portion of a frequency range of the first passband and has a bandwidth narrower than the bandwidth of the first passband. The RF filter also includes a first phase shifter connected to a first terminal of the second filter; and a second phase shifter connected to a second terminal of the second filter.
    Type: Grant
    Filed: January 20, 2020
    Date of Patent: March 22, 2022
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventor: Koji Nosaka
  • Patent number: 11276912
    Abstract: A high input impedance magnetic balun/transformer having a phase balancing network (PBN) and method of operating. The balun is fully configurable and trimmable post fabrication using independently adjustable resistive and reactive parts by changing the resistance of a programmed transistor, e.g., NMOS. Parallel connected legs each having a field effect transistors (FETs) that make up NMOS device alter the impedance at the balun output terminals. The ground terminal of a secondary winding or coil at an unbalanced, single-ended side is connected to a phase balancing network. The phase balancing network includes at least two parallel legs, each leg having a resistive element in the form of a transistor device and at least one leg including a capacitive element. The transistor device at a leg can be operated in a linear region to trim the resistance and capacitances at the unbalanced side in order to achieve proper phase balancing and amplitude matching.
    Type: Grant
    Filed: December 28, 2020
    Date of Patent: March 15, 2022
    Assignee: International Business Machines Corporation
    Inventors: Sudipto Chakraborty, Rajiv Joshi, Steven J. Holmes, Bruce B. Doris
  • Patent number: 11277112
    Abstract: A microelectromechanical device having a mobile structure including mobile arms formed from a composite material and having a fixed structure including fixed arms capacitively coupled to the mobile arms. The composite material includes core regions of insulating material and a silicon coating.
    Type: Grant
    Filed: August 12, 2020
    Date of Patent: March 15, 2022
    Assignee: STMICROELECTRONICS S.R.L.
    Inventors: Gabriele Gattere, Lorenzo Corso, Alessandro Tocchio, Carlo Valzasina
  • Patent number: 11276913
    Abstract: A directional coupler having coupling variability at separate portions of an operational frequency band. A frequency selective coupler comprises an input port, an output port, a coupled port, a termination port, a first RF filter coupled to the coupled port, and a second RF filter coupled to the termination port. The first and second RF filters yield a first coupling value at a first portion of the operational frequency band of the coupler and a second coupling value at a second portion of the operational frequency band. The first portion of the band corresponds to a range of frequencies at which higher coupling for the coupler is desired and greater loss in the signal is tolerable. The second portion of the band corresponds to a range of frequencies at which lower coupling for the coupler is tolerable and lower loss in the signal is desirable.
    Type: Grant
    Filed: June 9, 2020
    Date of Patent: March 15, 2022
    Assignee: Harmonic, Inc.
    Inventor: Adi Bonen