Patents Examined by Jorge L Salazar, Jr.
  • Patent number: 10524354
    Abstract: An electronic device includes a transmission line and a circuit board. The transmission line includes a signal conductor, a base material, a first external connection conductor, a second external connection conductor, and a ground conductor, and defines a stripline. The circuit board includes a first mounting land conductor, a second mounting land conductor, and a radiation reduction conductor. The first mounting land conductor and the second mounting land conductor are provided in a concave portion on the surface of the circuit board, and are respectively connected to the first external connection conductor and the second external connection conductor. The radiation reduction conductor is provided on the lateral surface of the concave portion in which the transmission line is disposed, and is in contact with or adjacent to the first lateral surface and the second lateral surface of the base material.
    Type: Grant
    Filed: August 23, 2018
    Date of Patent: December 31, 2019
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Shinya Oguri, Wataru Tamura, Kanto Iida, Kuniaki Yosui, Isamu Morita
  • Patent number: 10523179
    Abstract: Example implementations of a bulk acoustic wave resonator with an optimized outer perimeter are disclosed. In an example aspect, a resonator includes a truncated-ellipsoid-shaped active region. The active region includes an outer electrode disposed as a first layer of the active region. The active layer also includes a piezoelectric layer disposed as a second layer of the active region with the piezoelectric layer disposed interior to the outer electrode. The active layer further includes an inner electrode disposed as a third layer of the active region with the inner electrode disposed interior to the piezoelectric layer.
    Type: Grant
    Filed: September 18, 2017
    Date of Patent: December 31, 2019
    Assignee: SnapTrack, Inc.
    Inventors: Oscar Menendez-Nadal, Thomas Bain Pollard, Brian Hal Fisher, Janardan Nath
  • Patent number: 10516198
    Abstract: A waveguide connector assembly for coupling a waveguide to a microwave device includes a male part and a female part. The male part includes a threaded external cylindrical surface defining a male center axis, a first end surface, and a second end surface opposed to the first end surface. The female part includes a first annular end surface, a second annular end surface opposed to the first annular surface, a threaded internal cylindrical surface configured to engage with the threaded external cylindrical surface of the male part, and a gap in the threaded internal cylindrical surface from the first end annular end surface to the second annular end surface, and extends in a female radial direction the entire width of the first annular end surface and the second annular end surface.
    Type: Grant
    Filed: December 6, 2017
    Date of Patent: December 24, 2019
    Assignee: Quantum Microwave Components, LLC
    Inventors: Christopher T. Koh, Francis T. Koh, Andrew Cobin
  • Patent number: 10511346
    Abstract: Aspects of the subject disclosure may include, receiving a plurality of communication signals, and generating, by a transmitting device according to the plurality of communication signals, a plurality of wireless signals that induces a plurality of electromagnetic waves that propagates along a pseudo dielectric layer of an uninsulated conductor. The plurality of electromagnetic waves can propagate along the pseudo dielectric layer of the uninsulated conductor without an electrical return path, each electromagnetic wave of the plurality of electromagnetic waves conveying at least a portion of the plurality of communication signals. Other embodiments are disclosed.
    Type: Grant
    Filed: November 13, 2017
    Date of Patent: December 17, 2019
    Assignee: AT&T Intellectual Property I, L.P.
    Inventors: Paul Shala Henry, Giovanni Vannucci, Thomas M. Willis, III, Robert Bennett, Donald J. Barnickel, Irwin Gerszberg, Farhad Barzegar
  • Patent number: 10511283
    Abstract: A surface acoustic wave filter includes resonators, wherein one of the resonator includes four or more regions with different pitches of electrode fingers, the pitch of electrode fingers in each of the four or more regions is constant, the pitch of electrode fingers in first regions, among the four or more regions, disposed at both ends of the resonator in a surface acoustic wave propagation direction is smaller than the pitch of electrode fingers in the regions other than the first regions, and the pitch of electrode fingers in a second region adjacent to the first region and the pitch of electrode fingers in a third region adjacent to the first region are different from each other.
    Type: Grant
    Filed: January 30, 2019
    Date of Patent: December 17, 2019
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventor: Kenta Maeda
  • Patent number: 10498000
    Abstract: A method and apparatus for producing an RF part of an antenna system is disclosed, as well as thereby producible RF parts. The RF part has at least one surface provided with a plurality of protruding elements. In particular, the RF part may be a gap waveguide. The protruding elements are monolithically formed and fixed on a conducting layer, and all protruding elements are connected electrically to each other at their bases via the conductive layer. The RF part is produced by providing a die having a plurality of recessions forming the negative of the protruding elements of the RF part. The die may be a multilayer die, having several layers, at least some having through-holes to form the recessions. A formable piece of material is arranged on the die, and pressure is applied, thereby compressing the formable piece of material to conform with the recessions of the die.
    Type: Grant
    Filed: January 19, 2015
    Date of Patent: December 3, 2019
    Assignee: Gapwaves AB
    Inventors: Farid Hadavy, Per-Simon Kildal
  • Patent number: 10483942
    Abstract: Aspects of this disclosure relate to an acoustic wave device that includes an acoustic obstacle disposed between canceling circuits coupled to one or more acoustic wave filters. The canceling circuits can cancel frequency components within different frequency bands. The acoustic obstacle can reduce acoustic coupling between the canceling circuits by scattering and/or absorbing acoustic energy.
    Type: Grant
    Filed: January 18, 2018
    Date of Patent: November 19, 2019
    Assignee: Skyworks Solutions, Inc.
    Inventors: Rei Goto, Toru Yamaji
  • Patent number: 10476551
    Abstract: Aspects of the subject disclosure may include, for example, a coupling device including a receiving portion that receives a radio frequency signal conveying data from a transmitting device. A magnetic coupler magnetically couples the radio frequency signal to a transmission medium as a guided electromagnetic wave that is bound by an outer surface of the transmission medium. A cap includes a dielectric portion that secures the transmission medium adjacent to the magnetic coupler and a reflective plate that reduces electromagnetic emissions from the magnetic coupler. Other embodiments are disclosed.
    Type: Grant
    Filed: January 4, 2019
    Date of Patent: November 12, 2019
    Assignee: AT&T Intellectual Property I, L.P.
    Inventors: Robert Bennett, Irwin Gerszberg, Paul Shala Henry, Farhad Barzegar, Donald J. Barnickel, Thomas M. Willis, III
  • Patent number: 10476482
    Abstract: Aspects and examples provide improvement in the attenuation level near the passband within the stopband of the bandpass-type filter using a ladder-type circuit formed by a BAW resonator. In one example the filter includes a ladder-type circuit formed by a bulk acoustic wave (BAW) resonator, and a loop circuit connected between two distinct points on a signal path extending from an input to an output of the ladder-type circuit for phase-cancellation of signals at the two distinct points. The two distinct points may be the input and the output of the ladder-type circuit. The loop circuit may include a SAW resonator or a BAW resonator. The BAW resonator may be a film bulk acoustic resonator (FBAR) or solidly mounted resonator (SMR).
    Type: Grant
    Filed: November 20, 2017
    Date of Patent: November 12, 2019
    Assignee: SKYWORKS SOLUTIONS, INC.
    Inventors: Satoshi Niwa, Yoshiaki Ando, Hiroyuki Nakamura
  • Patent number: 10476470
    Abstract: An elastic wave filter device includes a piezoelectric film, a high acoustic velocity support substrate in which an acoustic velocity of a propagating bulk wave is larger than an acoustic velocity of a main mode elastic wave propagating in the piezoelectric film, and IDT electrodes in contact with the piezoelectric film. A serial arm resonator and a parallel arm resonator are defined by the IDT electrodes such that, a direction in which tips of first and second electrode fingers are connected defines a tilt angle with respect to a propagation direction of elastic waves excited by the IDT electrodes. A tilt angle of the serial arm resonator is different from a tilt angle of the parallel arm resonator.
    Type: Grant
    Filed: December 4, 2017
    Date of Patent: November 12, 2019
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventor: Yuichi Takamine
  • Patent number: 10476473
    Abstract: An elastic wave element includes a piezoelectric substrate, an IDT electrode including a first comb-shaped electrode and a second comb-shaped electrode, and reflectors. Each of the reflectors includes a first reflective busbar electrode, a second reflective busbar electrode, and reflective electrode fingers. The first comb-shaped electrode includes a first busbar electrode connected to the first reflective busbar electrodes, and first electrode fingers. The second comb-shaped electrode includes a second busbar electrode and second electrode fingers. In in-between areas, in each of which a reflective electrode finger and a first electrode finger adjacent to each other in the elastic-wave propagation direction face each other, connecting electrodes which electrically couple the reflective electrode fingers to the first electrode fingers are provided.
    Type: Grant
    Filed: December 21, 2018
    Date of Patent: November 12, 2019
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventor: Akio Kaneda
  • Patent number: 10476478
    Abstract: The specification relates to an RF filter in which characteristic filter variables have a decreased dependency on tuning. A filter in this case comprises series-interconnected basic elements that each have an electroacoustic resonator and impedance converters interconnected in series between the basic elements.
    Type: Grant
    Filed: July 20, 2015
    Date of Patent: November 12, 2019
    Assignee: SnapTrack, Inc.
    Inventor: Edgar Schmidhammer
  • Patent number: 10469055
    Abstract: A filter device includes a longitudinally coupled resonator elastic wave filter that includes IDT electrodes including low acoustic velocity regions in outer side portions of center regions of the IDT electrodes and high acoustic velocity regions in outer side portions of the low acoustic velocity regions in a direction orthogonal or substantially orthogonal to an elastic wave propagation direction, and defines and functions as a first bandpass filter, and elastic wave resonators that are electrically connected to the longitudinally coupled resonator elastic wave filter.
    Type: Grant
    Filed: December 4, 2017
    Date of Patent: November 5, 2019
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Hideki Iwamoto, Keiji Okada, Yuichi Takamine, Tsutomu Takai
  • Patent number: 10469051
    Abstract: An acoustic wave filter includes series resonators and parallel resonators that have a piezoelectric film on an identical substrate and have a lower electrode and an upper electrode, wherein: one of the series resonators and the parallel resonators have a temperature compensation film on a face of the lower electrode or the upper electrode that is opposite to the piezoelectric film in a resonance region, the compensation film having an elastic constant of a temperature coefficient of which sign is opposite to a sign of a temperature coefficient of an elastic constant of the piezoelectric film; and the other have an added film on the same side as the temperature compensation film on the lower electrode side or the upper electrode side compared to the piezoelectric film in the resonance region in the one of the series resonators and the parallel resonators.
    Type: Grant
    Filed: June 1, 2017
    Date of Patent: November 5, 2019
    Assignee: TAIYO YUDEN CO., LTD.
    Inventors: Tokihiro Nishihara, Shinji Taniguchi
  • Patent number: 10461389
    Abstract: According to one embodiment, a converter includes a first dielectric substrate; a second dielectric substrate provided above the first dielectric substrate through a first adhesive layer; a first signal line provided between the first dielectric substrate and the second dielectric substrate; a first via that penetrates the first dielectric substrate and is coupled to the first signal line on an upper side of the first via; and a first conductor plate provided at least one of below the first dielectric substrate and above the second dielectric substrate.
    Type: Grant
    Filed: June 30, 2017
    Date of Patent: October 29, 2019
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Manabu Mukai, Koh Hashimoto, Makoto Higaki
  • Patent number: 10461718
    Abstract: An acoustic wave resonator includes: a piezoelectric substrate; and an IDT that is located on the piezoelectric substrate and includes first regions and second regions alternately arranged in an extension direction of electrode fingers, which excite an acoustic wave, in an overlap region in which the electrode fingers overlap, at least one electrode finger of the electrode fingers in the second regions having a different width from the at least one electrode finger in the first regions, a width of an outer second region of the second regions in the extension direction differs from a width of an inner second region of the second regions.
    Type: Grant
    Filed: January 26, 2017
    Date of Patent: October 29, 2019
    Assignee: TAIYO YUDEN CO., LTD.
    Inventors: Hidetaro Nakazawa, Masafumi Iwaki, Tabito Tanaka, Takashi Matsuda
  • Patent number: 10461720
    Abstract: Techniques are disclosed for increasing capacitance, decreasing losses, and/or improving a quality factor of a SAW filter. The techniques include using a partial-IDT instead of a reflector between two groups of IDTs. The partial-IDT is implemented having a cavity transition on a first end and a reflector transition on a second end. The cavity transition facilitates propagation of main-resonance acoustic waves into, or between elements of, the partial-IDT. The reflector transition facilitates reflection of main-resonance acoustic waves.
    Type: Grant
    Filed: September 21, 2017
    Date of Patent: October 29, 2019
    Assignee: SnapTrack, Inc.
    Inventors: Ravi Kiran Challa, Akshaya Ishwarayya Hiremath, Attieh Shahvarpour
  • Patent number: 10454447
    Abstract: Embodiments of a Surface Acoustic Wave (SAW) device and methods of fabrication thereof are disclosed. In some embodiments, a SAW device includes a quartz carrier substrate, a piezoelectric layer on a surface of the quartz carrier substrate, and at least one interdigitated transducer on a surface of the piezoelectric layer opposite the quartz carrier substrate, wherein a thickness of the piezoelectric layer is less than twice a transducer electrode period of the at least one interdigitated transducer. Using the piezoelectric layer on the carrier substrate suppresses acoustic radiation into the bulk, thereby improving the performance of the SAW device. Further, by utilizing quartz for the carrier substrate, additional advantages of small viscous losses, small permittivity, and small thermal sensitivity are achieved. Still further, as compared to Silicon, the use of quartz for the carrier substrate eliminates resistive losses.
    Type: Grant
    Filed: July 30, 2018
    Date of Patent: October 22, 2019
    Assignee: Qorvo US, Inc.
    Inventors: Marc Solal, Shogo Inoue
  • Patent number: 10447225
    Abstract: A filter apparatus, which includes a feedback active common-mode filter and a feed-forward active common-mode filter, the feedback active common-mode filter includes a common-mode noise detection component and a first filter circuit, and the feed-forward active common-mode filter includes the common-mode noise detection component and a second filter circuit, where the first filter circuit is connected between the common-mode noise detection component and the device, and performs feedback filtering on a first common-mode noise signal, to obtain a second common-mode noise signal; the common-mode noise detection component is connected between the first filter circuit and the second filter circuit, detects the second common-mode noise signal, and provides the second filter circuit with the second common-mode noise signal; and the second filter circuit is connected between an external power source and the common-mode noise detection component, and performs feed-forward filtering on the second common-mode noise sig
    Type: Grant
    Filed: October 26, 2017
    Date of Patent: October 15, 2019
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Changsheng Pei, Yongbing Gao, Heling Zhang
  • Patent number: 10447233
    Abstract: An elastic wave device includes a piezoelectric substrate, filter electrodes, input terminal electrodes, output terminal electrodes, and ground terminal electrodes. The filter electrodes are disposed along a first direction. The ground terminal electrodes corresponding to the filter electrodes are respectively disposed between adjacent filter electrodes, and are common to the adjacent filter electrodes.
    Type: Grant
    Filed: December 19, 2018
    Date of Patent: October 15, 2019
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventor: Kentaro Funahashi