Wave transmission lines and networks inventions

20090267702 - Printed circuit board for decreasing wireless wide area network noise: A printed circuit board (PCB) capable of decreasing wireless wide area network (WWAN) noise generated due to internal signal interference occurring in the PCB is disclosed. The PCB printed circuit board includes a first layer, a second layer, and at least one insulating layer formed between the first and second... Agent: Brinks Hofer Gilson & Lione

20090267703 - Dynamically adaptable impedance matching circuitry between an electro-optical load and a driving source: A system including a driving source that supplies an alternating current (AC) electrical signal is provided. At least one electro-optical device is coupled as an electrical load of the driving source. The system further includes an apparatus configured to provide a dynamically adaptable electrical impedance matching between the driving source... Agent: General Electric Company Global Research

20090267704 - Capacitor devices with a filter structure: A capacitor device is provided. The capacitor device includes at least one capacitor. The capacitor device also includes a first capacitor and a first filter coupling the first capacitor and a conductive region, wherein the first capacitor has a first resonance frequency and the first filter is configured to operate... Agent: Finnegan, Henderson, Farabow, Garrett & Dunner LLP

20090267705 - Tunable matching network circuit topology selection: Tunable matching network topologies are disclosed. A network in accordance with the present invention comprises at least one inductor, and at least one tunable capacitor, in parallel with the inductor, wherein the at least one tunable capacitor tunes the at least one inductor self-resonant frequency.... Agent: Gates & Cooper LLP Howard Hughes Center

20090267706 - Resonator and fabrication method thereof: A resonator fabrication method is provided. A method includes providing a plurality of electrode patterns disposed apart from each other on a substrate using a nano-imprint technique; and forming an extended electrode pattern connected to a plurality of electrode patterns, and forming a nano structure laid across an extended electrode... Agent: Dla Piper LLP Us

20090267707 - Elastic wave device: An elastic wave device is described which includes a piezoelectric substrate, comb-shaped electrodes having teeth electrodes that are disposed so as to face each other on the piezoelectric substrate, a non-overlapping area in which the teeth electrodes of the comb-shaped electrodes do not overlap each other, and a overlapping area... Agent: Arent Fox LLP

20090267708 - Dielectric filter: A dielectric filter having a dielectric block disposed on a mount board. The dielectric block includes inner conductor holes having open ends on the front surface of the dielectric block. Input/output electrodes are disposed on the undersurface of the dielectric block. Each of the input/output electrodes extends from the boundary... Agent: Dickstein Shapiro LLP

20090267709 - Wireless non-radiative energy transfer: The electromagnetic energy transfer device includes a first resonator structure receiving energy from an external power supply. The first resonator structure has a first Q-factor. A second resonator structure is positioned distal from the first resonator structure, and supplies useful working power to an external load. The second resonator structure... Agent: Fish & Richardson PC

20090267710 - Wireless non-radiative energy transfer: The electromagnetic energy transfer device includes a first resonator structure receiving energy from an external power supply. The first resonator structure has a first Q-factor. A second resonator structure is positioned distal from the first resonator structure, and supplies useful working power to an external load. The second resonator structure... Agent: Fish & Richardson PC

20090267712 - Feed thru with flipped signal plane using guided vias: An embodiment of the invention includes a high speed feed thru connecting a first circuit outside a housing to a second circuit inside the housing. The first circuit includes a first high speed integrated circuit chip and the second circuit includes a second high speed integrated circuit chip or optoelectronic... Agent: Workman Nydegger 1000 Eagle Gate Tower

20090267711 - High frequency circuit: A circuit has a first coplanar line including a first strip conductor formed on the first plane of a dielectric substrate and a first grounded conductor formed on the first plane and disposed on one side of the first strip conductor, and a second coplanar line including a second strip... Agent: Agilent Technologies Inc.

20090267713 - High-frequency transmission line: A high-frequency transmission line includes: a dielectric substrate; a signal line formed on one surface of the dielectric substrate; a first and a second surface ground patterns formed so as to sandwich the signal line at a given distance from the signal line on the surface of the dielectric substrate;... Agent: Nec Corporation Of America

20090261919 - Millimeter wave band nonreciprocal device: [Solving means] To solve this problem, there is provided a millimeter-wave band nonreciprocal device composed of a magnetic material represented by a formula ε-MxFe2-xO3 (0<x<2), wherein M is at least one of elements In, Ga, Al, Sc, Cr, Sm, Yb, Ce, Ru, Rh, Ti, Co, Ni, Mn, Zn, Zr, and... Agent: Darby & Darby P.C.

20090261920 - Non-reciprocal circuit element: A non-reciprocal circuit element (for example, a 2-port isolator) includes a tabular yoke, permanent magnets, a ferrite to which a direct current magnetic field is applied from the permanent magnets, a first center electrode and a second center electrode disposed on the ferrite, and a circuit board. The tabular yoke... Agent: Murata Manufacturing Company, Ltd. C/o Keating & Bennett, LLP

20090261921 - Balance filter: A balance filter includes two acoustic wave filters connected between a single unbalanced terminal and two balanced terminals, and a ground terminal connected to the two acoustic wave filters via a first interconnection portion and a second interconnection portion. The first interconnection portion is connected to the two acoustic wave... Agent: Arent Fox LLP

20090261926 - Method and structure for inhibiting multipactor: A method of reducing multipactor effect occurrence on surfaces in a high energy field, e.g., RF devices, is provided and RF devices having a configuration produced by the method are provided. The method includes forming wall structures formed of a metallic wall material and defining a channel through which the... Agent: Jordan And Hamburg LLP

20090261922 - Piezoelectric resonator and piezoelectric filter: A piezoelectric resonator includes a substrate and a thin-film section. The thin-film section includes a first thin-film section supported by the substrate, and an acoustically-isolated second thin-film section which is separated from the substrate. In the second thin-film section, first and second electrodes are arranged on the respective main surfaces... Agent: Murata Manufacturing Company, Ltd. C/o Keating & Bennett, LLP

20090261923 - Electronic apparatus: A quartz crystal unit has a quartz crystal tuning fork resonator that is capable of vibrating in a flexural mode and that has a quartz crystal tuning fork base, and first and second quartz crystal tuning fork tines. The quartz crystal tuning fork resonator is mounted on a mounting portion... Agent: Bruce L. Adams, Esq. Adams & Wilks

20090261924 - Cavity filter coupling system: The elliptical response bandpass filter according to the invention comprises a plurality N of cavities connected in series by means of in-phase coupling loops; the first cavity is in addition connected to the last by a complementary phase-inversion coupling loop in order to generate transmission zeros at determined frequencies.... Agent: Thomson Licensing LLC

20090261925 - Slow wave structures and electron sheet beam-based amplifiers including same: A traveling wave amplifier circuit to receive an RF wave and an electron sheet beam and to effect synchronized interaction therebetween. The circuit includes a wave guide having at least a first wall and a second wall opposite the first wall. The first wall and the second wall are connected... Agent: K&l Gates LLP

20090256644 - Radio frequency communication devices and methods: One embodiment relates to a radio frequency (RF) communication device. The RF communication device includes an antenna interface coupled to an antenna that exhibits a time-varying impedance. The RF communication device also includes a test interface coupled to RF test equipment that exhibits a test impedance. A tuning circuit in... Agent: Eschweiler & Associates LLC

20090256655 - Anti-parallel pi pin attenuator structure with improved cso performance: An RF attenuator circuit includes an anti-parallel PI structure having an input shunt arm comprising a single PIN diode, and an output shunt arm comprising a single PIN diode configured to have opposite polarity of the PIN diode of the input shunt arm.... Agent: Fsp LLC

20090256645 - Composite duplexer: A composite duplexer includes an antenna terminal, a first receiving terminal, a second receiving terminal, a transmitting terminal, a first switch, a duplexer, and a second switch. The first switch includes a first branch contact, a second branch contact connected with the transmitting terminal, a third branch contact connected with... Agent: Pearne & Gordon LLP

20090256646 - Millimeter waveband switch: A millimeter waveband switch which enables high isolation without increasing passing loss, includes a first switching element that is connected in series between input and output terminals through which a signal passes; and a first transmission line having an electrical length of ½ wavelength and which is connected in parallel... Agent: Leydig Voit & Mayer, Ltd

20090256647 - Band blocking filter for attenuating unwanted frequency components: A band-blocking filter for attenuating an unwanted frequency component in a signal having a plurality of frequency components is disclosed. The band-blocking filter includes an input port, a cancellation signal generator, and a combining circuit. An input signal having the plurality of frequency components including a first frequency component at... Agent: Agilent Technologies Inc.

20090256648 - Dc and/or af output from an rf path: An improved DC and/or audio-frequency output for RF paths has the following features: an earth connection is provided, in particular in the form of an electrically conductive housing (17), an output path (13) branches off from a connection point (117, 117′) on an RF path (3, 5), the output path... Agent: Nixon & Vanderhye, PC

20090256649 - Acoustic wave filter device: An acoustic wave filter device includes plural filter circuits between an input terminal and an output terminal. Plural inductors are connected in series in a series arm that connects the input terminal and the output terminal, and plural first acoustic wave resonators are connected between the series arm and a... Agent: Studebaker & Brackett PC

20090256650 - Filtering circuit with coupled acoustic resonators: A filter with coupled resonator having a substrate; an acoustic mirror intended to support acoustic resonators, and to isolate these resonators from the substrate; a first structure with an upper resonator and a lower resonator coupled to one another through at least one layer of acoustic coupling; a second structure... Agent: Seed Intellectual Property Law Group PLLC

20090256651 - Triple-mode cavity filter having a metallic resonator: A triple-mode filter is disclosed, the triple-mode filter including a cavity for confining electromagnetic waves and a metallic block acting as a resonator within that cavity. The metallic block does not contact the conductive walls of the cavity, but is instead suspended by a support element. Triple-mode resonators may be... Agent: Kramer & Amado, P.C.

20090256652 - Suspended tm mode dielectric combline cavity filter: A combline filter has a ceramic resonator disposed inside at least one cavity wall. Because the resonator is implemented as a hollow rod, a tuning element may be inserted into an opening on the top of the rod to tune its frequency. A mounting element, inserted into an opening on... Agent: Kramer & Amado, P.C.

20090256653 - Dual-band coupling device: A coupling device is provided. The coupling device has a substrate, a ground element, a first feed conductor and a second feed conductor. The substrate has a first surface and a second surface. The ground element is disposed on the second surface, wherein the ground element has a first annular... Agent: Quintero Law Office, PC

20090256654 - Switchable frequency response microwave filter: The present invention discloses a switchable frequency response microwave filter, which uses voltage-controlled varactors to attain the separation or combination of the odd mode and even mode of signals in a dual-mode ring resonator to realize a bandpass or bandstop function and then controls the frequency response of the output... Agent: Sinorica, LLC

20090251232 - Coplanar waveguide structures and design structures for radiofrequency and microwave integrated circuits: Coplanar waveguide structures and design structures for radiofrequency and microwave integrated circuits. The coplanar waveguide structure includes a signal conductor and ground conductors generally coplanar with the signal conductor. The signal conductor is disposed between upper and lower arrays of substantially parallel shield conductors. Conductive bridges, which are electrically isolated... Agent: Wood, Herron & Evans, LLP (ibm-bur)

20090251236 - Transmission path for use in rf fields: A transmission path (13) for transmitting high frequency (RF) signals is disclosed, which comprises a plurality of lead segments (20, 21, 22) which are coupled to one another on one end by a capacitive coupling element (30) and on the other end by an inductive coupling element (31) and which... Agent: Philips Intellectual Property & Standards

20090251233 - Ortho-mode transducer for coaxial waveguide: There is disclosed an ortho-mode transducer. An annular common waveguide may be defined by an outside surface of an inner conductor and an inside surface of an outer conductor, the outside surface and the inside surface concentric about a waveguide axis. A first port may couple a first TE11 mode... Agent: SocalIPLaw Group LLP

20090251234 - Complex resonance circuit: A serial resonance circuit is prepared. The serial resonance circuit is configured of a pair of resonance elements serially connected to each other at a midpoint therebetween and exhibiting resonance frequencies equal to each other. To both ends of the serial resonance circuit, phase shift circuits that shift phases so... Agent: Drinker Biddle & Reath (dc)

20090251235 - Bulk acoustic wave resonator filter being digitally reconfigurable, with process: A filtering circuit with BAW type acoustic resonators having at least a first quadripole and a second quadripole connected in cascade, each quadripole having a branch series with a first acoustic resonator of type BAW and a branch parallel with each branch having an acoustic resonator of type BAW, the... Agent: Seed Intellectual Property Law Group PLLC