Patents Examined by Robert Pascal
  • Patent number: 9225051
    Abstract: A method for independently tuning bandwidth and center frequencies in a bandpass filter. The filter can be configured with a plurality of resonators, wherein the resonators are coupled over a certain coupling region. Additionally, the filter can be configured with a plurality of tuning elements. For each of the inter-resonator couplings, at least one of the resonators associated with the inter-resonator coupling can have a first tuning element placed at a first location on the resonator and a second tuning element placed at a second location on the resonator. Simultaneously tuning the first and second tuning elements can adjust the center frequency, and offset tuning the first and second tuning elements can adjust the bandwidth frequency.
    Type: Grant
    Filed: September 28, 2011
    Date of Patent: December 29, 2015
    Assignee: The Goverment of the United States of America, as represented by the Secretary of the Navy
    Inventor: Andrew C. Guyette
  • Patent number: 9226385
    Abstract: A radio frequency (RF) device includes a transmission line arranged on a substrate, the transmission line operative to propagate an RF signal having a wavelength (?), and a first isolation portion arranged on the substrate proximate to the transmission line, the first isolation portion including an arrangement of stubs, where each stub of the arrangement of stubs has a length (y) where y=¼?, the first isolation portion operative to substantially prevent electromagnetic interference caused by the propagation of the RF signal in the transmission line from passing through the first isolation portion.
    Type: Grant
    Filed: November 16, 2012
    Date of Patent: December 29, 2015
    Assignee: RAYTHEON COMPANY
    Inventors: Andrew K. Brown, Shane A. O'Connor
  • Patent number: 9219877
    Abstract: The present invention provides an adjustable radio frequency (“RF”) impedance method. Embodiments of the invention provide voltage adjustable RF impedance termination methods.
    Type: Grant
    Filed: March 7, 2013
    Date of Patent: December 22, 2015
    Assignee: Holland Electronics, LLC
    Inventor: Michael Holland
  • Patent number: 9218309
    Abstract: In accordance with embodiments of the present disclosure, a system may include a driver, a plurality of drops, and a plurality of transmission lines, including one transmission line between the driver and one of the plurality of drops and one transmission line between successive adjacent drops. Each particular transmission line of the plurality of transmission lines may be manufactured to have a desired impedance based on a corresponding effective impedance as seen at a drop located on an end of the particular transmission line furthest from the driver in a direction away from the driver.
    Type: Grant
    Filed: February 26, 2013
    Date of Patent: December 22, 2015
    Assignee: Dell Products L.P.
    Inventors: Bhyrav M. Mutnury, Stuart Allen Berke, Douglas S. Winterberg
  • Patent number: 9214920
    Abstract: An antenna matching circuit includes at least two signal paths are connected to one antenna connection. The signal paths are designed to transmit and/or receive RF signals. A matching circuit includes a discrete line for phase shifting integrated at the antenna end in at least one of the signal paths. In this case, at least one of the capacitances contained in the discrete line is in the form of a micro-acoustic resonator, whose resonance is shifted sufficiently far that it is outside the pass band of the respective signal paths.
    Type: Grant
    Filed: February 10, 2011
    Date of Patent: December 15, 2015
    Assignee: EPCOS AG
    Inventors: Andreas Link, Stephan Marksteiner
  • Patent number: 9214917
    Abstract: A stack type common mode filter (CMF) for high frequency may improve high frequency characteristics, like removing an impedance difference between terminals by not overlapping terminal portions of multiple stack structures with upper and lower magnetic substances, and removing noise in a common mode and removing a signal distortion in a differential mode by removing an unnecessary parasitic impedance from terminal portions, and thus the stack type CMF for high frequency may be applicable at a high frequency compared to a conventional CMF.
    Type: Grant
    Filed: February 27, 2014
    Date of Patent: December 15, 2015
    Assignees: Joinset Co., Ltd.
    Inventor: Sun-Ki Kim
  • Patent number: 9214918
    Abstract: A power distributing duplexer system is provided. In some aspects, the system includes a duplexer configured to couple an antenna to a transmitter and a receiver. The system also includes a balancing network coupled to the duplexer. The balancing network includes a network impedance. The balancing network is configured to adjust the network impedance to match an antenna impedance of the antenna. The balancing network includes a plurality of balancing network modules coupled to the duplexer. Each of the plurality of balancing network modules is configured to receive a portion of an output voltage from the duplexer.
    Type: Grant
    Filed: December 14, 2012
    Date of Patent: December 15, 2015
    Assignee: Broadcom Corporation
    Inventors: Mohyee Mikhemar, Hooman Darabi
  • Patent number: 9209774
    Abstract: There is provided a splitter circuit means for use with a CATV network comprising a signal input (34) in communication with a transformer or balun (32) to supply two signal outputs (36, 38), with a resistor (52) connected in parallel between the outputs (36, 38) and wherein additional capacitive, inductive and resistive elements (48, 50, 52, 54) are associated with the resistor (42), thereby to give an insertion loss in to out in the range of 3 to 10 dB and isolation 10 out to out of <17 dB for signal frequencies in the range 1125 MHz to 1700 MHz, while at the same time maintaining good RF performance in the frequency range 5 MHz to 1000 MHz.
    Type: Grant
    Filed: September 9, 2011
    Date of Patent: December 8, 2015
    Assignee: Technetix Group Limited
    Inventor: Martien Rijssemus
  • Patent number: 9209506
    Abstract: A resonant circuit includes a plurality of cables, each of which including: an outer conductor made of a conductive material in a cylindrical manner; an inner conductor, made of a conductive material in an elongated manner, and disposed inside of the outer conductor; and an insulator disposed between the outer conductor and the inner conductor. The plurality of cables is disposed in series in a circular manner. The inner conductor, provided in one of adjacently disposed cables among the plurality of cables, is conductively connected to the outer conductor of another of the adjacently disposed cable.
    Type: Grant
    Filed: December 21, 2011
    Date of Patent: December 8, 2015
    Assignee: Central Japan Railway Company
    Inventors: Junichi Kitano, Haruo Ikeda, Shunsaku Koga
  • Patent number: 9209504
    Abstract: A microwave resonator with impedance jump, comprises at least one line of high characteristic impedance of a determined length and one line of low characteristic impedance, at least the line of high characteristic impedance comprising a first line cut, a first link wire of a first determined impedance ensuring an electrical link for the passage of the signal from one side to the other of the first line cut. A method for producing a microwave resonator comprising an adjustment step is also provided.
    Type: Grant
    Filed: July 17, 2013
    Date of Patent: December 8, 2015
    Assignee: THALES
    Inventors: Stéphane Denis, Patrick Fouin, Gérard Haquet, Georges Peyresoubes Peyresoubes
  • Patent number: 9209511
    Abstract: The present invention is directed to a network that includes an output matching network coupled to an amplifier. The output matching network is configured to transform the at least one amplifier transistor output impedance to an output matching network impedance. A combiner network is coupled to the output matching network. The combiner network includes a first quarter wavelength transmission line coupled between the in-phase signal path and a combiner node. The combiner network further includes a bandwidth enhancement element coupled to the quadrature signal path at the combiner node and an impedance transformation element coupled between the combiner node and a load. The impedance transformation element is configured to substantially transform a combined output matching network impedance at the combiner node to the load impedance.
    Type: Grant
    Filed: October 15, 2012
    Date of Patent: December 8, 2015
    Assignee: Anaren, Inc.
    Inventor: Chong Mei
  • Patent number: 9203131
    Abstract: The present invention relates to a band stop filter comprising: a resonating bar; a housing on the inside of which is formed a receiving space where the resonating bar is positioned, and which is made in a stepped form such that at least one part of an upper-end part is narrower than a lower-end part in terms of the internal width of the receiving space during the formation of the receiving space; a lower cover which has the resonating bar fitted thereto, is joined to the lower part of the housing and, when so joined, is assembled such that the resonating bar is inserted into the receiving space, and which forms the floor surface of the receiving space; and a hermetic-sealing cover which is provided within a recess pre-made in the housing in such a way as to couple with a resonator formed by the receiving space and the resonating bar on the inside of the receiving space, and is designed to hermetically seal the recess in the housing where a transmission line has been provided.
    Type: Grant
    Filed: March 15, 2010
    Date of Patent: December 1, 2015
    Assignee: KMW INC.
    Inventors: Nam-Shin Park, Don-Yong Lee, Jae-Hong Kim
  • Patent number: 9203373
    Abstract: A diplexer includes a substrate having a set of through substrate vias. The diplexer also includes a first set of traces on a first surface of the substrate. The first traces are coupled to the through substrate vias. The diplexer further includes a second set of traces on a second surface of the substrate that is opposite the first surface. The second traces are coupled to opposite ends of the set of through substrate vias. The through substrate vias and the traces also operate as a 3D inductor. The diplexer also includes a capacitor supported by the substrate.
    Type: Grant
    Filed: March 13, 2013
    Date of Patent: December 1, 2015
    Assignee: QUALCOMM Incorporated
    Inventors: Chengjie Zuo, Jonghae Kim, Mario Francisco Velez, Je-Hsiung Lan, Daeik D. Kim, Changhan Yun, David F. Berdy, Robert P. Mikulka, Matthew M. Nowak, Xiangdong Zhang, Puay H. See
  • Patent number: 9203129
    Abstract: A Yttrium Iron Garnet (YIG) tuned band reject filter using one or more Shunt YIG resonators provides for much wider minimum rejection bandwidths without increasing maximum 3 db bandwidths or spurious response. Various configurations of a tunable shunt YIG tuned band reject filter achieves a wide rejection bandwidth at the low end of the tuning range while keeping the maximum 3 db bandwidth, normally occurring at the high end of the tuning range, to a minimum.
    Type: Grant
    Filed: October 1, 2012
    Date of Patent: December 1, 2015
    Assignee: TELEDYNE WIRELESS, LLC
    Inventor: Marinus L. Korber
  • Patent number: 9203369
    Abstract: The present disclosure is directed to systems and methods for operating, designing, testing and verifying the performance of wireless communication devices. Specifically, the present systems and methods can passively attenuate unwanted electromagnetic interference (EMI) without degrading signal quality of predetermined frequency using a novel versatile module including a RF absorbing material in a composite medium surrounding the conducting signal lines. Utilizing varying permeability media, the present invention offer a robust platform to eliminate unwanted noise while maintaining a desirable control and power interfaces used for testing of wireless communication systems.
    Type: Grant
    Filed: October 1, 2012
    Date of Patent: December 1, 2015
    Assignee: Octoscope Inc.
    Inventors: Ron Cook, James Sozanski
  • Patent number: 9196942
    Abstract: An adaptable filter made up of cavity resonators. The adaptation takes place by adjusting the connection from the input connector (CN1) of the filter to the input resonator and from the output resonator to the output connector. For adjusting the connection there is a coaxial transfer line (TL1), the outer conductor (OC1) of which is connected by its one end to the wall of the filter casing and by its other end to the outer conductor of the connector (CN1) and the inner conductor of which extends from the middle conductor of the connector to the cavity of the resonator and there into the internal connecting member of the resonator. A middle rod belonging to the inner conductor is surrounded over a certain distance by a cylindrical conductive tuning element, which can be moved by sliding it along the middle rod.
    Type: Grant
    Filed: November 10, 2011
    Date of Patent: November 24, 2015
    Assignee: Intel Corporation
    Inventors: Petri Päri, Jukka Puoskari
  • Patent number: 9196944
    Abstract: A broadband building block portion is provided, which may be used to construct N-way multi-port combiners. The building block portion comprises a first feeding probe that receives a first input signal, a second feeding probe that receives a second input signal, a combining probe that combines the first and second input signals to output a combined signal, and a transmission line coupled to the first and second feeding probes.
    Type: Grant
    Filed: August 6, 2012
    Date of Patent: November 24, 2015
    Assignee: Teledyne Wireless, LLC
    Inventors: Ankush Mohan, Yehuda Goren, William Goumas
  • Patent number: 9197187
    Abstract: A front-end circuit includes a diplexer and an impedance conversion circuit. The diplexer includes a feeding side common port through which a high-frequency signal in a high band and a high-frequency signal in a low band are input and output, a first port through which a high-frequency signal in a high band is input and output, and a second port through which a high-frequency signal in a low band is input and output, and demultiplexes or multiplexes the high-frequency signal in a low band and the high-frequency signal in a high band. The impedance conversion circuit is connected between the second port of the diplexer and an antenna port. The first port of the diplexer is directly connected to the antenna port through a transmission line.
    Type: Grant
    Filed: November 6, 2013
    Date of Patent: November 24, 2015
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Kenichi Ishizuka, Noboru Kato, Noriyuki Ueki
  • Patent number: 9190976
    Abstract: An embodiment of the invention provides a passive device cell. The passive device cell has a substrate layer, a passive device, and an intermediary layer formed between the substrate layer and the passive device. The intermediary layer includes a plurality of LC resonators.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: November 17, 2015
    Assignee: MEDIATEK INC.
    Inventors: Ming-Tzong Yang, Cheng-Chou Hung, Tung-Hsing Lee, Wei-Che Huang
  • Patent number: 9190707
    Abstract: The invention relates to a method for manufacturing an RF filter comprising several resonator cavities and an RF filter manufactured by the method. The resonator cavities are formed into shape from a copper plate in a first manufacturing phase. In a second manufacturing phase the formed resonator cavities are inserted or integrated into a chassis material of the RF filter.
    Type: Grant
    Filed: November 11, 2011
    Date of Patent: November 17, 2015
    Assignee: Prism Microwave, Inc.
    Inventors: Mika Hedemaki, John Kevin Pryor, William Baldwin Johnson