Waveguide Patents (Class 333/208)
  • Patent number: 10305440
    Abstract: A band-pass filter for a wireless communications signal is provided. The band-pass filter includes a first element and a second element that mates with the first element to form a waveguide. The formed waveguide comprises a first linear segment and a second linear segment coupled by a first angular bend. The band-pass filter further includes an insert plate disposed between the first element and the second element along a direction of propagation of the waveguide. The direction of propagation follows the angular bend in the waveguide. In some embodiments, the band-pass filter is an E-plane filter. In some embodiments, the band-pass septum filter has a shorter length along an x-direction than a straight septum filter with the same performance.
    Type: Grant
    Filed: May 5, 2017
    Date of Patent: May 28, 2019
    Assignee: ZTE CORPORATION
    Inventors: Zhiping Feng, Zhou Li, Edwin Nealis, Ying Shen
  • Patent number: 10256518
    Abstract: A pair of joined dielectric resonator components of an RF filter includes a first dielectric resonator component and a second dielectric resonator component. The first dielectric resonator component includes a first block of dielectric material, which has a coating of a first conductive material and at least one planar face. The at least one planar face includes a first aperture formed by removing the coating of first conductive material from a portion of the planar face of the first block. The second dielectric resonator component includes a second block of dielectric material, which has a coating of a second conductive material and at least one planar face. The at least one planar face includes a second aperture formed by removing the coating of second conductive material from a portion of the planar face of the second block.
    Type: Grant
    Filed: January 18, 2017
    Date of Patent: April 9, 2019
    Assignee: Nokia Solutions and Networks Oy
    Inventors: David R Hendry, Steven J Cooper, Chris Boyle, Brian Hurley
  • Patent number: 10209168
    Abstract: A measuring instrument for thermogravimetrically determining the moisture content of a material, which includes a base (12), configured as a balance, with a base surface (22), and a hood (14) pivotably connected to the base. The hood has a weighing chamber lid (50), weighing chamber walls (52-56) and a heating element (44). The hood consists of an electronics module (36) that includes the heating element and an electronic power unit, and of a mechanical module (48) that includes the weighing chamber lid and all of the weighing chamber walls. The mechanical module (48) is rigidly and reversibly coupled to the electronics module so that the heating element, protrudes from a main body (42) of the electronics module and rises through a corresponding opening (58) in the rearward weighing chamber wall (56), with the main body being pivotably connected to the base and surrounding the electronic power unit.
    Type: Grant
    Filed: September 27, 2016
    Date of Patent: February 19, 2019
    Assignee: SARTORIUS LAB INSTRUMENTS GMBH & CO. KG
    Inventors: Olaf Dudda, Wilfried Spannagel, Daniel Faerger
  • Patent number: 10205209
    Abstract: A triple-band bandpass filter with at least one cavity resonator. Each cavity resonator has the same three orthogonal resonances modes corresponding to three unique resonance frequencies. The three unique resonance frequencies define the passbands of the filter. The filter has an input probe coupled to an input cavity resonator. The filter has an output probe coupled to an output cavity resonator. The input and output probes are shaped to concurrently couple signal waveforms in each of the resonance modes. Coupling probes that can be used as input or output probes are also provided. An inter-cavity coupling operable to concurrently transmit signal waveforms in each of the resonance modes is also provided. The inter-cavity coupling can be used to transmit signals between adjacent cavity resonators in the filter.
    Type: Grant
    Filed: November 4, 2016
    Date of Patent: February 12, 2019
    Assignee: COM DEV LTD.
    Inventors: Li Zhu, Ming Yu, Raafat R. Mansour
  • Patent number: 10135150
    Abstract: A beamformer comprises a transmission line fed by at least one input feed source, the transmission line comprising two stacked metal plates extending, along two directions, longitudinal X and transverse Y. The transmission line further comprises at least one protuberance extending in the directions X, Y, and in a direction Z orthogonal to the plane XY, the protuberance comprising a metal insert extending in the directions X and Y and extending height-wise in the direction Z, the insert comprising a base fastened to one of the two metal plates and a free end and having a contour of variable length between the two lateral edges of the transmission line. In the protuberance, the transmission line is adjoining the insert and forms, in the direction Z, a circumvolution around the insert.
    Type: Grant
    Filed: June 28, 2016
    Date of Patent: November 20, 2018
    Assignees: THALES, UNIVERSITE DE RENNES 1, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE
    Inventors: Hervé Legay, Ségolène Tubau, Jean-Philippe Fraysse, Etienne Girard, Mauro Ettorre, Ronan Sauleau, Nelson Fonseca
  • Patent number: 10128556
    Abstract: The present invention relates to a transition arrangement (1) between a SIW and a waveguide interface (3). The SIW comprises a dielectric material (4), a first and second metal layer (5, 6) and a first and second electric wall element (7a, 7b) running essentially parallel and electrically connecting the metal layers (5, 6). The transition arrangement (1) comprises a coupling aperture (8) in the first metal layer (5) and a third wall element (7c) running between the first and second electric wall elements (7a, 7b). The transition arrangement (1) further comprises an intermediate transition element (9) with a first and second main surface (10, 11), and a transition aperture (12) having first and second opening (13, 14) with corresponding first and second widths (w1, w2).
    Type: Grant
    Filed: March 24, 2013
    Date of Patent: November 13, 2018
    Assignee: Telefonaktiebolaget LM Ericsson (Publ)
    Inventors: Per Ligander, Valter Pasku, Ove Persson, Pietro Sanchirico, Ola Tageman
  • Patent number: 10096877
    Abstract: In an example embodiment, a waveguide device comprises: a first common waveguide; a polarizer section, the polarizer section including a conductive septum dividing the first common waveguide into a first divided waveguide portion and a second waveguide divided portion; a second waveguide coupled to the first divided waveguide portion of the polarizer section; a third waveguide coupled to the second divided waveguide portion of the polarizer section; and a dielectric insert. The dielectric insert includes a first dielectric portion partially filling the polarizer section. The conductive septum and the dielectric portion convert a signal between a polarized state in the first common waveguide and a first polarization component in the second waveguide and a second polarization component in the third waveguide.
    Type: Grant
    Filed: November 28, 2017
    Date of Patent: October 9, 2018
    Assignee: VIASAT, INC.
    Inventors: Anders Jensen, John D Voss, Donald L Runyon
  • Patent number: 10056672
    Abstract: Embodiments include package structures having integrated waveguides to enable high data rate communication between package components. For example, a package structure includes a package substrate having an integrated waveguide, and first and second integrated circuit chips mounted to the package substrate. The first integrated circuit chip is coupled to the integrated waveguide using a first transmission line to waveguide transition, and the second integrated circuit chip is coupled to the integrated waveguide using a second transmission line to waveguide transition. The first and second integrated circuit chips are configured to communicate by transmitting signals using the integrated waveguide within the package carrier.
    Type: Grant
    Filed: July 28, 2016
    Date of Patent: August 21, 2018
    Assignee: International Business Machines Corporation
    Inventors: Bing Dang, Duixian Liu, Jean-Olivier Plouchart, Alberto Valdes-Garcia
  • Patent number: 10038232
    Abstract: Embodiments include package structures having integrated waveguides to enable high data rate communication between package components. For example, a package structure includes a package substrate having an integrated waveguide, and first and second integrated circuit chips mounted to the package substrate. The first integrated circuit chip is coupled to the integrated waveguide using a first transmission line to waveguide transition, and the second integrated circuit chip is coupled to the integrated waveguide using a second transmission line to waveguide transition. The first and second integrated circuit chips are configured to communicate by transmitting signals using the integrated waveguide within the package carrier.
    Type: Grant
    Filed: July 28, 2016
    Date of Patent: July 31, 2018
    Assignee: International Business Machines Corporation
    Inventors: Bing Dang, Duixian Liu, Jean-Olivier Plouchart, Alberto Valdes-Garcia
  • Patent number: 9947980
    Abstract: A terahertz waveguide bandpass filter block assembly including a waveguide iris filter, a pedestal block having a pedestal channel including a first one-half portion of the iris filter, and a cover block having a cover channel including a second one-half portion of the iris filter, where the first and second one-half portions combine to define the iris filter having a plurality of poles when the pedestal block and the cover block are secured together. The assembly also includes first and second ribbon strips positioned on opposing sides and adjacent to the iris filter between the pedestal block and the cover block, where a compression force between the pedestal block and the cover block compresses the first and second ribbon strips and sets an “a” dimension of the iris filter to tune the filter to a frequency band of interest.
    Type: Grant
    Filed: January 14, 2016
    Date of Patent: April 17, 2018
    Assignee: Northrop Grumman Systems Corporation
    Inventors: Shih-En Shih, Ben Gorospe, Kevin Leong, William R. Deal
  • Patent number: 9929454
    Abstract: A circularly polarized wave generator includes a rectangular hollow waveguide (1), a plurality of first protrusions (2) that are provided on one pair of opposing wall surfaces in the waveguide (1), have longitudinal directions orthogonal to an axial direction of the waveguide (1), and are arranged at intervals along the axial direction, and a plurality of second protrusions (3) that are provided between the first protrusions (2) on the wall surfaces and are arranged with longitudinal directions thereof running along the axial direction.
    Type: Grant
    Filed: April 2, 2015
    Date of Patent: March 27, 2018
    Assignee: Mitsubishi Electrics Corporation
    Inventors: Yu Ushijima, Hidenori Yukawa, Tetsu Owada, Shuji Nuimura
  • Patent number: 9799937
    Abstract: The present invention relates to a waveguide E-plane filter component comprising a first and second main part (2) with a corresponding first and second waveguide section part (3). The main parts (2) are mounted to each other, such that a waveguide arrangement is formed. The waveguide arrangement has a height and a width. The waveguide E-plane filter component further comprises at least one electrically conducting foil (10, 11) that is placed between the main parts (3), said foil comprising a filter part (25) with apertures (12a, 12b, 12c, 12d). Each pair of adjacent apertures is separated by a corresponding foil conductor (13a, 13b, 13c) of which at least one is constituted by a tuning foil conductor (13a) that has a first, second and third part (14, 16, 18) with a corresponding first, second and third width (15, 17, 19).
    Type: Grant
    Filed: April 2, 2013
    Date of Patent: October 24, 2017
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Anatoli Deleniv, Piotr Kozakowski
  • Patent number: 9793589
    Abstract: In order to prevent electrical characteristics from degrading, a band-pass filter includes: a dielectric substrate having an upper surface and a lower surface opposed to each other, the dielectric substrate extending in a waveguide axial direction; a pair of conductor layers respectively arranged on the upper surface and the lower surface of the dielectric substrate; two rows of through hole groups for sidewalls, which are formed at predetermined intervals in the waveguide axial direction so as to electrically connect the pair of conductor layers; and a plurality of through holes for electrically connecting the pair of conductor layers, the plurality of through holes being formed in parallel to the waveguide axial direction and arranged in a center of a waveguide formed in a region surrounded by the pair of conductor layers and the two rows of the through hole groups for sidewalls.
    Type: Grant
    Filed: April 1, 2013
    Date of Patent: October 17, 2017
    Assignee: NEC Corporation
    Inventor: Takafumi Kai
  • Patent number: 9786972
    Abstract: In an end surface 32b of the second transmission line forming body 32 forming a second waveguide 30, the height of a central region 33 which includes an opening of the second transmission line 30b is a reference plane. A depressed portion 32e that is depressed to a depth greater than the length of a thread portion of a screw 205 from the reference plane is provided in a region outside the central region 33 and includes a screw hole forming position. A screw hole 32d for fixing an external circuit 200 to be connected is provided at the screw hole forming position in the depressed portion 32e. The height of a region, which is excluding the depressed portion 32e and is further away from the central region 33 than the screw hole forming position, is equal to the reference plane.
    Type: Grant
    Filed: July 2, 2015
    Date of Patent: October 10, 2017
    Assignee: Anritsu Corporation
    Inventors: Takashi Kawamura, Akihito Otani
  • Patent number: 9742052
    Abstract: A device for transmitting millimeter-wave signals between a microstrip formed on a circuit board and a waveguide, characterized by a housing which is soldered onto the circuit board with the aid of solder contacts and which contains a signal line, which is connected to the microstrip via a soldered connection suitable for use at high frequencies, and which connects this microstrip to a coupling point for the millimeter-wave signals, the coupling point facing the waveguide.
    Type: Grant
    Filed: September 11, 2015
    Date of Patent: August 22, 2017
    Assignee: ROBERT BOSCH GMBH
    Inventors: Juergen Hasch, Elena Pancera, Carsten Potratz, Dirk Schmidt
  • Patent number: 9673497
    Abstract: A temperature-compensated high frequency filter of coaxial construction comprises at least one resonator having an inner conductor and an outer conductor housing. A compensation device made of a second material has a second coefficient of thermal expansion. The compensation device comprises a wall section, which extends in an axial direction and is variable in length in this direction in the event of a temperature change. The wall section is part of the housing wall configured in the manner of an intermediate layer or an upper-most layer located adjacent to the housing cover. The wall section may extend in an axial direction or in a direction transversely thereto and be variable in length in this direction in the event of a temperature change. The wall section is an integral part of the housing cover or is connected to the housing cover, or forms the housing cover having convex outwardly directed curvature.
    Type: Grant
    Filed: November 14, 2013
    Date of Patent: June 6, 2017
    Assignee: Kathrein-Austria Ges.m.b.H
    Inventor: Bernd Schöninger
  • Patent number: 9583813
    Abstract: Various embodiments are directed toward systems and method for manufacturing low cost passive waveguide components. For example, various embodiments relate to low cost manufacturing of passive waveguide components, including without limitation, waveguide filters, waveguide diplexers, waveguide multiplexers, waveguide bends, waveguide transitions, waveguide spacers, and antenna adapters. Some embodiments comprise manufacturing a passive waveguide component by creating a non-conductive structure using a low cost fabrication technology, such as injection molding or three-dimensional (3D) printing, and then forming a conductive layer over the non-conductive structure such that the conductive layer creates an electrical feature of the passive waveguide component.
    Type: Grant
    Filed: August 6, 2014
    Date of Patent: February 28, 2017
    Assignee: Aviat U.S., Inc.
    Inventors: Jayesh Nath, Ying Shen, Edwin Nealis
  • Patent number: 9553371
    Abstract: An integrated antenna package includes an interposer, an integrated circuit die, and a cap that forms a cavity within the integrated antenna package. A lossy EBG structure resides at the cap overlying the integrated circuit device. A lossless EBG structure resides at the cap overlying a microstrip feedline. A radar module includes a plurality of receive portions, each receive portion including a parabolic structure having a reflective surface, an absorber structure, a lens, and an antenna.
    Type: Grant
    Filed: November 12, 2010
    Date of Patent: January 24, 2017
    Assignee: NXP USA, INC.
    Inventors: James MacDonald, William McKinzie, III, Walter Parmon, Lawrence Rubin
  • Patent number: 9287598
    Abstract: A high-power microwave RF window is provided that includes a cylindrical waveguide, where the cylindrical waveguide includes a ceramic disk concentrically housed in a central region of the cylindrical waveguide, a first rectangular waveguide, where the first rectangular waveguide is connected by a first elliptical joint to a proximal end of the cylindrical waveguide, and a second rectangular waveguide, where the second rectangular waveguide is connected by a second elliptical joint to a distal end of the cylindrical waveguide.
    Type: Grant
    Filed: May 7, 2014
    Date of Patent: March 15, 2016
    Assignee: The Board of Trustees of the Leland Stanford Junior University
    Inventors: Sami G. Tantawi, Valery A. Dolgashev, Anahid D. Yeremian
  • Patent number: 9282625
    Abstract: A plasma resonant cavity, including a cylindrical resonant cavity casing, cutoff waveguides, and a waveguide inlet circumferentially formed on the cylindrical resonant cavity casing. The cutoff waveguides are arranged at two ends of the cylindrical resonant cavity casing and employ a movable end cover structure. An intermediate through hole is formed on each cutoff waveguide with the movable end cover structure, and a raised round table is arranged on an inner end surface of the cutoff waveguide and configured with the resonant cavity.
    Type: Grant
    Filed: October 9, 2012
    Date of Patent: March 8, 2016
    Assignee: YANGTZE OPTICAL FIBRE AND CABLE COMPANY, LTD.
    Inventors: Zhenyu Li, Songtao Lu, Shanpei Liu, Shengya Long, Gaoqing Lei, Yongtao Liu
  • Patent number: 9190706
    Abstract: Various embodiments are directed toward low cost passive waveguide components. For example, various embodiments relate to passive waveguide components created busing a low cost fabrication technology. In some embodiments, a three-dimensional (3D) printing process is used to create a design mold and a non-conductive structure of the waveguide is formed using a plastic injection molding process. A conductive layer may be formed over the non-conductive structure such that the conductive layer creates an electrical feature of the passive waveguide component.
    Type: Grant
    Filed: September 29, 2011
    Date of Patent: November 17, 2015
    Assignee: Aviat U.S., Inc.
    Inventors: Jayesh Nath, Ying Shen, Edwin Nealis
  • Patent number: 9136579
    Abstract: Provided is a phase shifter using a substrate integrated waveguide (SIW). The phase shifter includes: a substrate; and a waveguide integrated on the substrate, wherein the waveguide includes an input port, an out port, two columns of via walls which are separated by a width of the waveguide and are arranged parallel to each other, and either a plurality of air holes which are formed to shift a phase of a signal between the input port and the output port or a plurality of rods, each including an air hole and a dielectric material inserted into the air hole.
    Type: Grant
    Filed: November 4, 2010
    Date of Patent: September 15, 2015
    Assignee: AJOU UNIVERSITY INDUSTRY COOPERATION FOUNDATION
    Inventors: Hai-Young Lee, Ki-Bum Kang, Jin do Byun
  • Patent number: 9044754
    Abstract: Instant invention is about a micro chip comprising plurality of layers of LTCC wherein a reaction chamber is formed in plurality of top layers to load samples. A heater embedded in at least one of the layers below the reaction chamber and a temperature sensor is embedded in at least one of the layers between the heater and the reaction chamber for analyzing the sample. The temperature sensor can be placed outside the chip to measure the chip temperature.
    Type: Grant
    Filed: October 13, 2008
    Date of Patent: June 2, 2015
    Assignee: Bigtec Private Limited
    Inventors: Kishore Krishna Kumar, Raviprakash Jayaraman, Sankaranand Kaipa Narasimha, Renjith Mahiladevi Radhakrishnan, Sathyadeep Viswanathan, Chandrasekhar Bhaskaran Nair, Pillarisetti Venkata Subbarao, Manjula Jagannath, Shilpa Chennakrishnaiah
  • Publication number: 20150137911
    Abstract: In order to prevent electrical characteristics from degrading, a band-pass filter includes: a dielectric substrate having an upper surface and a lower surface opposed to each other, the dielectric substrate extending in a waveguide axial direction; a pair of conductor layers respectively arranged on the upper surface and the lower surface of the dielectric substrate; two rows of through hole groups for sidewalls, which are formed at predetermined intervals in the waveguide axial direction so as to electrically connect the pair of conductor layers; and a plurality of through holes for electrically connecting the pair of conductor layers, the plurality of through holes being formed in parallel to the waveguide axial direction and arranged in a center of a waveguide formed in a region surrounded by the pair of conductor layers and the two rows of the through hole groups for sidewalls.
    Type: Application
    Filed: April 1, 2013
    Publication date: May 21, 2015
    Inventor: Takafumi Kai
  • Patent number: 9019047
    Abstract: The present invention relates to a waveguide E-plane filter component (1) comprising a first and second main part (2: 4) with a corresponding first and second waveguide section part (3, 5). The main parts (2, 4) are arranged to be mounted to each other, such that an open side (8) of the first waveguide section part (3) is arranged to face an open side (9) of the second waveguide section part (5). The E-plane filter component (1) further comprises at least one electrically conducting foil (10, 11) that is arranged to be placed between the main part (2, 4), Said foil (10, 11) have a longitudinal extension (L) and comprises a filter part (12) that is arranged to run between the waveguide section parts (3, 5), and is divided into a first filter part (13) and a second filter part (14) by an imaginary symmetry line (15) running along the longitudinal extension (L) in the middle of the filter part (12).
    Type: Grant
    Filed: May 18, 2011
    Date of Patent: April 28, 2015
    Assignee: Telefonaktiebolaget L M Ericsson (publ)
    Inventors: Piotr Kozakowski, Anatoli Deleniv
  • Patent number: 8988171
    Abstract: A bandpass filter of the present invention includes: rectangular waveguides which are divided into two in a center of a broad plane; and a metal plate which has a substantially ladder shape, is disposed between the rectangular waveguides in parallel with a narrow plane of the rectangular waveguides, and has a pair of beams and plurality of fins that connect the pair of beams. At least one other waveguide is formed by dividing a waveguide path within the rectangular waveguides vertically with respect to a direction which is parallel with the broad plane. At least three resonators are formed within the rectangular waveguides by the metal plate, and each of the other waveguides couples resonators together which crosses at least one of the plurality of resonators so as to form a pole outside a pass band.
    Type: Grant
    Filed: December 17, 2009
    Date of Patent: March 24, 2015
    Assignee: NEC Corporation
    Inventor: Takafumi Kai
  • Publication number: 20150077198
    Abstract: The present invention provides a dielectric waveguide resonator comprising a pair of rectangular parallelepiped-shaped dielectric blocks being in contact with each other through respective contact surfaces thereof. The dielectric waveguide resonator has an outer periphery coated with an electrically conductive film except for the contact surfaces, and is configured to resonate in a TE mode. A probe composed of an electrically conductive film is formed on at least one of the contact surface. Thus, it becomes possible to provide a dielectric waveguide resonator having a simple structure, requiring no adjustment structure, and comprising a structure for conversion between a dielectric waveguide and a coaxial line.
    Type: Application
    Filed: September 12, 2014
    Publication date: March 19, 2015
    Applicant: TOKO, INC.
    Inventor: Yukikazu YATABE
  • Patent number: 8941443
    Abstract: A cavity filter having a piezoelectric tuning element is tuned by determining a desired oscillating frequency for the piezoelectric tuning element and applying that frequency through a phase-locked loop. The phase-locked loop maintains the piezoelectric tuning element at the desired frequency.
    Type: Grant
    Filed: March 1, 2012
    Date of Patent: January 27, 2015
    Assignee: Rockwell Collins, Inc.
    Inventor: Robert Newgard
  • Publication number: 20140368300
    Abstract: A waveguide filter, a preparation method thereof, and a communication device to resolve a problem in which a prepared high-resonance-frequency waveguide filter cannot meet an application requirement due to a low precision of an existing machining process. The waveguide filter includes a substrate made of a silicon material, where an etching cavity having a flat side wall is formed in the substrate, a depth of the etching cavity is not greater than 0.7 mm, and an angle between the side wall of the etching cavity and a vertical direction is not smaller than 1 degree, and a waveguide port is disposed on the substrate, where the waveguide port is connected to the etching cavity and electrically connected to the etching cavity.
    Type: Application
    Filed: August 5, 2014
    Publication date: December 18, 2014
    Inventors: Yanzhao Zhou, Yufeng Dai, Xiang Wei
  • Patent number: 8912867
    Abstract: A waveguide filter, comprising a housing defining a passage through which electromagnetic waves can travel and a plurality of adjustable projections extending through the housing into the passage. The passage is absent any fixed protrusions. The plurality of adjustable projection s comprises a set of coupling projections, wherein each pair of adjacent coupling projections in the set of coupling projections defines there between a resonant cavity. Each coupling projection in the set of coupling projections acts as a coupling element for at least one resonant cavity and is adjustable for trimming the coupling of that at least one resonant cavity. The plurality of adjustable projections further comprises a set of tuning projections, wherein a tuning projection from the set of tuning projections is positioned between each pair of adjacent coupling projections and is adjustable for trimming a resonance frequency of an associated resonant cavity.
    Type: Grant
    Filed: December 14, 2011
    Date of Patent: December 16, 2014
    Assignee: Apollo Microwaves, Ltd.
    Inventor: Giuseppe Frenna
  • Patent number: 8888995
    Abstract: High power RF energy supplied to a reaction chamber at a resonant frequency is used to break the covalent bonds of a hydrocarbon material without heat. An RF signal generator may be used to supply RF energy to a resonant ring through a four port coupler. The phase of the RF energy passing through the resonant ring may be adjusted to achieve an integral multiple of a resonant wavelength. Wavelength and intensity may be adjusted to sublimate or pyrolyze the hydrocarbon material to yield a useful gaseous product.
    Type: Grant
    Filed: August 12, 2011
    Date of Patent: November 18, 2014
    Assignee: Harris Corporation
    Inventors: Victor Hernandez, Lisa Patton
  • Publication number: 20140320237
    Abstract: A radiofrequency filter exhibiting at least one resonant mode comprises: at least one cavity at least partially closed using conductive walls, having a cylindrical outer surface defined by a directing curve described by a generatrix and having a point of symmetry, an axis passing through a point of symmetry and parallel to the generatrix being a longitudinal axis of the cavity. At least one dielectric element is arranged in the cavity and comprises: a first portion having a thickness according to the longitudinal axis and a section according to a plane perpendicular to the longitudinal axis whose vertices are distributed according to a polygon, at least two vertices being short-circuited between them by the conductive walls of the cavity, via an electrical or radiofrequency contact between the vertices and walls, at least one pyramidal portion comprising an apex and a base coinciding with an extreme section of the first portion.
    Type: Application
    Filed: April 24, 2014
    Publication date: October 30, 2014
    Inventors: Damien PACAUD, Nicolas JOLLY
  • Publication number: 20140292447
    Abstract: To provide a radio wave half mirror for a millimeter wave band which can flatten transmittance characteristics and a method of flattening the transmittance of the radio wave half mirror for a millimeter wave band. A radio wave half mirror 20 includes a metal plate 21 that has an outward shape closing a transmission line 11 and a slit 22 for transmitting electromagnetic waves that is provided in the metal plate 21 along a long side of an opening of the transmission line 11. The thickness L of the metal plate 21 in a direction in which the electromagnetic waves pass through the slit 22 is set on the basis of the transmittance characteristics of the electromagnetic waves.
    Type: Application
    Filed: March 17, 2014
    Publication date: October 2, 2014
    Applicant: ANRITSU CORPORATION
    Inventor: Takashi Kawamura
  • Publication number: 20140266961
    Abstract: A mode filter provides a low-loss transmission path for RF signals propagating in a first mode, while substantially suppressing at least one second mode. The mode filter includes a proximal port and a distal port, having a respective characteristic cross sectional dimension Dp1 and Dp2, and an electrically conductive hollow tube having a longitudinal axis that extends a length L between a distal end of the proximal port and a proximal end of the distal port. A cross section transverse to the longitudinal axis is non-uniform along length L and has a minimum internal characteristic dimension Dmin at least at a first longitudinal position and a maximum internal characteristic dimension Dmax at least at a second longitudinal position. The mode filter is configured to suppress the at least one second mode by at least 5 dB, and Dmax is less than 2.5 times the greater of Dp1 and Dp2.
    Type: Application
    Filed: March 13, 2013
    Publication date: September 18, 2014
    Applicant: SPACE SYSTEMS/LORAL, LLC
    Inventor: Behzad Tavassoli Hozouri
  • Patent number: 8818319
    Abstract: Various embodiments implement waveguides for signal distribution or signal filtering in satellite receivers. According to some embodiments, a low noise block downconverter (LNB) is implemented using waveguides configured for signal distribution, band pass filtering, low pass filtering, high pass filtering, or band stop filtering. For some embodiments, the waveguides may be formed by the LNB chassis and the ground plane of a printed circuit board mounted to the LNB chassis.
    Type: Grant
    Filed: June 29, 2012
    Date of Patent: August 26, 2014
    Assignee: Entropic Communications, Inc.
    Inventor: Martin Christopher Alderton
  • Publication number: 20140176379
    Abstract: A waveguide filter is provided. The waveguide filter includes a pipe and a first rib structure. The pipe includes a first inner wall. The first rib structure includes a first rib. The first rib is disposed in the pipe and formed on the first inner wall. The first rib includes a first section and a second section, wherein the first section and the second section extend on a first straight line and are perpendicular to the first inner wall, and a first gap is formed between the first section and the second section, and a first gap distance of the first gap is between 0.1 to 1.2 mm.
    Type: Application
    Filed: September 10, 2013
    Publication date: June 26, 2014
    Applicant: Wistron NeWeb Corp.
    Inventors: Shun-Chung KUO, Chang-Hsiu HUANG
  • Patent number: 8686812
    Abstract: A waveguide for transmission of data signals therealong. Data signals are typically received from and/or transmitted to a remote location and subsequently passed to or emitted from the apparatus which allows the data to be processed. The waveguide includes a channel which has a cross-sectional shape, the angular orientation of which is changed at least one point along the length of the same so as to provide a waveguide which is less sensitive to interferences. The waveguide, in one embodiment, can also include recessed portions and/or ridges along the length of the channel which ensures that the waveguide can be formed in a more reliable and controlled manner.
    Type: Grant
    Filed: April 20, 2009
    Date of Patent: April 1, 2014
    Assignee: Raven Manufacturing Limited
    Inventors: Matthew Pike, Raymond Lloyd
  • Patent number: 8680936
    Abstract: A surface mountable transition block for perpendicular transitions between a microstrip or stripline and a waveguide. The transition block configuration allows for a reduction in the overall cost of a microwave circuit assembly because the circuit board to which the transition block is attached can be an FR-4 type circuit board as opposed to more expensive microwave circuit board materials.
    Type: Grant
    Filed: November 18, 2011
    Date of Patent: March 25, 2014
    Assignee: Delphi Technologies, Inc.
    Inventors: George J. Purden, David W. Zimmerman
  • Patent number: 8680953
    Abstract: The invention relates to a low-pass filter for electromagnetic signals, made up of a series of rejection elements defined by stubs (2) of length ?g/4, with a small or zero distance between them, these elements being tuned to different frequencies determining the rejection band.
    Type: Grant
    Filed: January 21, 2009
    Date of Patent: March 25, 2014
    Inventors: Iván Arregui Padilla, Israel Arnedo Gil, José María Lopetegui Beregaña, Miguel Ángel Gómez Laso, José Antonio Marcotegui Iturmendi
  • Publication number: 20140049342
    Abstract: The present invention relates to a waveguide E-plane filter component (1) comprising a first and second main part (2: 4) with a corresponding first and second waveguide section part (3, 5). The main parts (2, 4) are arranged to be mounted to each other, such that an open side (8) of the first waveguide section part (3) is arranged to face an open side (9) of the second waveguide section part (5). The E-plane filter component (1) further comprises at least one electrically conducting foil (10, 11) that is arranged to be placed between the main part (2, 4), Said foil (10, 11) have a longitudinal extension (L) and comprises a filter part (12) that is arranged to run between the waveguide section parts (3, 5), and is divided into a first filter part (13) and a second filter part (14) by an imaginary symmetry line (15) running along the longitudinal extension (L) in the middle of the filter part (12).
    Type: Application
    Filed: May 18, 2011
    Publication date: February 20, 2014
    Applicant: TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)
    Inventors: Piotr Kozakowski, Anatoli Deleniv
  • Patent number: 8598960
    Abstract: A method and apparatus for a polarizer. The apparatus comprises a dielectric rod, a first array of slots, and a second array of slots. The first array of slots and the second array of slots are formed in sidewalls of the dielectric rod. The first array of slots is substantially opposite to the second array of slots. The first array of slots and the second array of slots are configured to shift a first component orthogonal to a second component in a signal traveling through the dielectric rod by around 90 degrees with respect to each other. The dielectric rod may be a solid material or comprised of layers of dielectric substrates with metal tabs.
    Type: Grant
    Filed: January 29, 2009
    Date of Patent: December 3, 2013
    Assignee: The Boeing Company
    Inventors: Bruce Larry Blaser, John B. O'Connell
  • Publication number: 20130314179
    Abstract: A transmission line which allows electromagnetic waves in a predetermined frequency range of a millimeter waveband to propagate in a TE10 models formed by a first waveguide and a second waveguide. A resonator is formed by electric wave half mirrors fixed to the first waveguide and the second waveguide. The second waveguide has a structure in which a first transmission line forming body has a plate shape and has a square hole forming the first transmission line formed to pass therethrough from one surface toward an opposite surface, a second transmission line forming body has a plate shape and has a square hole forming the second transmission line formed to pass therethrough from one surface toward an opposite surface, and the first transmission line forming body and the second transmission line forming body are connectable and separable.
    Type: Application
    Filed: May 14, 2013
    Publication date: November 28, 2013
    Applicant: ANRITSU CORPORATION
    Inventors: Takashi Kawamura, Akihito Otani, Hiroshi Hasegawa
  • Publication number: 20130300522
    Abstract: Embodiments of the present disclosure provide a radio frequency (RF) conductive medium for reducing the undesirable insertion loss of all RE hardware components and improving the Q factor or “quality factor” of RF resonant cavities. The RF conductive medium decreases the insertion loss of the RF device by including one or more conductive pathways in a transverse electromagnetic axis that are immune to skin effect loss and, by extension, are substantially free from resistance to the conduction of RF energy.
    Type: Application
    Filed: April 29, 2013
    Publication date: November 14, 2013
    Applicant: Nanoton, Inc.
    Inventor: Nanoton, Inc.
  • Publication number: 20130293322
    Abstract: Various embodiments implement waveguides for signal distribution or signal filtering in satellite receivers. According to some embodiments, a low noise block downconverter (LNB) is implemented using waveguides configured for signal distribution, band pass filtering, low pass filtering, high pass filtering, or band stop filtering. For some embodiments, the waveguides may be formed by the LNB chassis and the ground plane of a printed circuit board mounted to the LNB chassis.
    Type: Application
    Filed: June 29, 2012
    Publication date: November 7, 2013
    Inventor: Martin Christopher ALDERTON
  • Patent number: 8514034
    Abstract: A waveguide having a non-conductive material with a high permeability (?, ?r for relative permeability) and/or a high permittivity (?, ?r for relative permittivity) positioned within a housing. When compared to a hollow waveguide, the waveguide of this invention, reduces waveguide dimensions by ? 1 ? r * ? r . The waveguide of this invention further includes ridges which further reduce the size and increases the usable frequency bandwidth.
    Type: Grant
    Filed: October 15, 2010
    Date of Patent: August 20, 2013
    Assignee: UT-Battelle, LLC
    Inventor: Yoon W. Kang
  • Publication number: 20130135062
    Abstract: A radio-wave half mirror for millimeter waveband is fixed inside a transmission line propagating electromagnetic waves of millimeter waveband in a single mode so as to transmit a part of incident electromagnetic waves and reflect a part thereof. The radio-wave half mirror includes: a half mirror body where a slit for transmitting electromagnetic waves is provided on a metal plate; and a dielectric plate that is provided on one surface side of the half mirror body so as to form a dielectric resonator which resonates at a frequency determined by the thickness and the permittivity, and has a transmittance characteristic having a degree of inclination substantially the same as that of the half mirror body in a slope which is inverse to a slope of a transmittance characteristic of the half mirror body in a desired frequency range of the millimeter waveband.
    Type: Application
    Filed: November 27, 2012
    Publication date: May 30, 2013
    Applicant: ANRITSU CORPORATION
    Inventor: ANRITSU CORPORATION
  • Publication number: 20130135159
    Abstract: An adaptor with a lower portion designed to be connectable to an upper horizontal opening serving as electromagnetic aperture of a reflector frame of a surface-mountable antenna device and an upper portion of the adaptor being designed to accommodate a waveguide of testing or tuning equipment.
    Type: Application
    Filed: January 25, 2013
    Publication date: May 30, 2013
    Applicant: HUBER+SUHNER AG
    Inventor: HUBER+SUHNER AG
  • Publication number: 20130113578
    Abstract: A method for manufacturing a resonance tube includes: mixing powder materials, to form homogeneous powder particles, where the powder materials comprise iron powder with a weight proportion of 50% to 90%, at least one of copper powder and steel powder with a weight proportion of 1% to 30%, and an auxiliary material with a weight proportion of 1% to 20%; pressing and molding the powder particles, to form a resonance tube roughcast; sintering the resonance tube roughcast in a protective atmosphere, to form a resonance tube semi-finished product; and electroplating the resonance tube semi-finished product, to form the resonance tube. In the method, the resonance tube, and the filter according to embodiments of the present invention, the resonance tube is manufactured by using multiple powder materials.
    Type: Application
    Filed: December 27, 2012
    Publication date: May 9, 2013
    Applicant: HUAWEI TECHNOLOGIES CO., LTD.
    Inventor: Huawei Technologies Co., Ltd.
  • Patent number: 8432238
    Abstract: The present invention relates to a flexible cap system optimized for thermally-compensated technology microwave resonators. More specifically, this invention proposes a multiple-membrane flexible wall system for thermally-compensated filters and OMUX. The use of a multi-membrane flexible wall, in particular as sealing cap for a resonant cavity of an OMUX channel, makes it possible: to reduce the thermal resistance of the flexible wall, while maintaining an equivalent level of mechanical stresses exerted on said wall for a given displacement; or to reduce the mechanical stresses exerted on the flexible wall for a given displacement, while maintaining one and the same thermal resistance for said wall; or to increase the deformation of the flexible wall by maintaining an equivalent level of mechanical stresses and by maintaining an equivalent thermal resistance.
    Type: Grant
    Filed: May 12, 2010
    Date of Patent: April 30, 2013
    Assignee: Thales
    Inventors: Joël Lagorsse, Michel Blanquet, Emmanuel Hayard
  • Patent number: 8393071
    Abstract: An oscillator device manufacturing method includes: placing an oscillator provided with electrodes on a convex pedestal provided on an assembly table; arranging, on the assembly table, a frame member including an opening surrounded by a frame thereof and provided with electrode pads on the frame such that the opening is positioned at the pedestal; connecting the electrode pads to the electrodes of the oscillator placed on the pedestal via wires, while the frame member is arranged on the assembly table; removing the frame member from the assembly table together with the oscillator after the connecting, and bonding the frame member connected to the oscillator to a substrate. By using the method, the oscillator device including the oscillator suspended in air above the substrate can be efficiently manufactured. In stead of using the frame member, a frame body in which frame members are arrayed can be employed.
    Type: Grant
    Filed: March 28, 2011
    Date of Patent: March 12, 2013
    Assignee: Fujitsu Limited
    Inventors: Hajime Kubota, Masayuki Itoh, Masakazu Kishi