Wave transmission lines and networks inventions 11/07

20070273454 - Biased nonlinear transmission line comb generators: Comb generators include a nonlinear transmission line (NLTL) having one or more NLTL sections. Each NLTL section includes one or more nonlinear elements and transmission line portions that provide transmission line dispersion. Typically, the nonlinear elements are Schottky diodes, and a pulse forming bias network is configured to establish Schottky... Agent: Klarquist Sparkman, LLP

20070273460 - Polarizer: A polarizer includes a waveguide, a pair of ridges and a dielectric slab. The waveguide has a side wall. The ridges protrude from the inner surface of the side wall of the waveguide, and the ridges are substantially symmetric with respect to the central axis of the waveguide. The dielectric... Agent: Rosenberg, Klein & Lee

20070273455 - Splitter balun apparatus and method for variable connector directions: As networking demands only increase for both home and business uses, the need for a splitter balun which enables repositioning of coaxial connections in the non-axial directions and provides universal positioning to interface jacks is highly desirable. For some applications, the challenge is to provide a splitter which provides a... Agent: Sughrue Mion, PLLC

20070273457 - Switch circuit: A branch path having a transmission line and a distributed constant line includes a resonant circuit. The resonant circuit resonates at a predetermined operating frequency when the branch path is in OFF state. At this time, the distributed constant line has a predetermined impedance. Further, an impedance of a node... Agent: Mcginn Intellectual Property Law Group, PLLC

20070273456 - Phase-shifting circuit and multibit phase shifter: A phase-shifting circuit includes: a first parallel circuit which is connected across input and output terminals of a high frequency signal, composed of a first inductor and a first switching element that exhibits a through state in an ON state and a capacitive property in an OFF state, and produces... Agent: Birch Stewart Kolasch & Birch

20070273458 - Waveguide samplers and frequency converters: Frequency converters include waveguides configured for a local oscillator (LO) signal, an intermediate frequency (IF) signal, and an RF signal. A multimode IF waveguide can be used for selectively coupling of an IF signal and to reduce signal contributions produced by the LO signal. Typically, the multimode waveguide is situated... Agent: Klarquist Sparkman, LLP

20070273459 - Band stop filter: A band stop filter (300) implemented by coaxial resonators for filtering antenna signals particularly in base stations of mobile communication networks. The starting point is a structure with a transmitting line and coaxial resonators electromagnetically coupled parallel with it, the natural frequencies of which resonators differ from each other slightly.... Agent: Darby & Darby P.C.

20070268085 - Method and system for designing shielded interconnects: A method of determining characteristics for electromagnetic shielding for a signal interconnect is disclosed. The electromagnetic shielding is to comprise a shielding dielectric layer and a shielding conductive layer. The method includes determining a set of harmonic frequencies associated with an operating frequency of a signal to be transmitted via... Agent: Larson Newman Abel Polansky & White, LLP

20070268094 - Semiconductor device interconnecting unit, semiconductor device, high-frequency module, and semiconductor device interconnecting method: A semiconductor device interconnecting unit for inputting/outputting a high-frequency signal having a millimeter wave band to/from a semiconductor device includes a part of a band pass filter and a remainder is provided. The part of a band pass filter is configured to pass therethrough the high-frequency signal having a millimeter... Agent: Bell, Boyd & Lloyd, LLP

20070268086 - Transmission line balun for broadband combiners, splitters and transformers: A transmission line balun comprising a tubular ferrite having a longitudinal passageway concentrically positioned over a conductive sleeve having a longitudinal passageway. The end of a coax feeder is positioned in the longitudinal passageway of the sleeve and the sleeve is grounded at its proximal end to the shield of... Agent: Holland & Knight LLP Attn: Stefan V. Stein/IPDept.

20070268088 - Stub-tuned wirebond package: An apparatus, system and method are described for impedance matching between a semiconductor package and a load on a board. In one embodiment of the present invention, a package trace is provided with an array of stubs that is designed to provide capacitance to the trace in order to more... Agent: Lsi Corporation

20070268096 - Attenuator: An attenuator includes a first diode, a first control voltage terminal, a second diode, a first resistance, a second resistance, a third diode, a fourth diode, a fifth capacitance, a second control voltage terminal, a third control voltage terminal, a fourth control voltage terminal, and a linearizer provided between an... Agent: Leydig Voit & Mayer, Ltd

20070268087 - High speed, controlled impedance air dielectric electronic backplane systems: A novel backplane interconnection system that is useful in the telecommunication and data process industries for ultra high speed backplane systems. It is capable of transmitting digital signals with bandwidths of 10 GHz and beyond. The invention provides high performance at a low cost of manufacture. It is suitable for... Agent: Roberts Abokhair & Mardula, LLC

20070268089 - Plasma immersion ion implantation using conductive mesh: A plasma process (5) for modifying at least a region of a surface of a component (1); wherein the component (1) is bombarded by ions from a gas plasma environment (4); and the ions are drawn towards the component (1) by a voltage source applied to a first mesh (3).... Agent: Mccarter & English , LLP Stamford Office

20070268090 - Variable power coupling device: An apparatus and method for providing adaptive control of the output of a radio frequency coupler. Adaptive control may include providing a transmission line having a plurality of branches extending therefrom and terminating, correspondingly, with a plurality of terminals and terminating, at its opposite end, with a single terminal, as... Agent: Thelen Reid Brown Raysman & Steiner LLP

20070268092 - Balanced filter and duplexer: A balanced filter includes: a filter that has at least one unbalanced signal terminal; a balun that is a lumped parameter balun that inputs or outputs signals with different phases generated based on a signal input or output from the unbalanced signal terminal of the filter, the balun being formed... Agent: Arent Fox LLP

20070268091 - Filter and duplexer: A duplexer includes: a first filter that is connected to a common terminal and a first terminal, and includes a first series-arm resonator; a second filter that is connected to the common terminal and a second terminal; a first inductor that is connected in parallel to the first series-arm resonator;... Agent: Arent Fox LLP

20070268093 - Integrated circuit shield structure and method of fabrication thereof: Embodiments of the invention provide an integrated circuit structure comprising: a substrate; a shield structure comprising a shield member and a ground strap formed on the substrate, wherein the shield member comprises a non-metallic portion, and the ground strap comprises a metallic portion.... Agent: HorizonIPPte Ltd

20070268095 - Micro-electromechanical system (mems) trampoline switch/varactor: A micro-electromechanical device includes an actuation electrode and a suspended electrode. The actuation electrode is disposed on a substrate. The suspended electrode is suspended proximate to the actuation electrode. The suspended electrode includes support members and a plate member. Each of the support members is clamped at either end to... Agent: Blakely Sokoloff Taylor & Zafman

20070262828 - Dielectric substrate for wave guide tube and transmission line transition using the same: A transmission line transition includes a waveguide tube section having a waveguide tube, a waveguide tube section that is formed of at least a dielectric substrate and a line transition section formed of at least a dielectric substrate disposed adjacent the waveguide tube section to cover the hole, a transmission... Agent: Harness, Dickey & Pierce, P.L.C

20070262829 - On-chip tx/rx antenna switching: An on-chip antenna switching scheme for Gigahertz frequencies where for the transmission path a first on-chip switching means is coupled between an on-chip power amplifier and an antenna. In the receiving path a second on-chip switching means at an input to an on-chip low noise amplifier (LNA) connects to ground.... Agent: Stephen B. Ackerman

20070262830 - Tunable microwave arrangements: The present invention relates to a tunable microwave arrangement (10) comprising a microwave/integrated circuit device (11) and a substrate (6). It comprises a layered structure disposed between said microwave/integrated circuit device and said substrate (5), said layered structure acting as a ground plane and it comprises at least one regularly... Agent: Potomac Patent Group PLLC

20070262831 - Electromechanical transducer and electrical device: The electromechanical transducer (1) for transducing an electrical input signal into an electrical output signal comprises a resonator element (20) and an actuator (30) for inducing an elastic deformation of the resonator element (20). The elastic deformation is dependent on the electrical input signal and is resonantly enhanced when the... Agent: Nxp, B.v. Nxp Intellectual Property Department

20070262833 - Band-pass filter element and high frequency module: A high frequency module incorporates a layered substrate, a plurality of elements mounted on a top surface of the layered substrate, and a metallic casing that covers these elements. The plurality of elements mounted on the top surface of the layered substrate include a band-pass filter element. The band-pass filter... Agent: Oliff & Berridge, PLC

20070262834 - Bandpass filter, electronic device including said bandpass filter, and method of producing a bandpass filter: h

20070262832 - Distributed constant type filter device: A distributed constant type filter includes a substrate including a part made of a first dielectric material having a first relative dielectric constant and a different-material part made of a second dielectric material having a second relative dielectric constant different from the first relative dielectric constant. A filter pattern is... Agent: Staas & Halsey LLP

20070262835 - Polarization-preserving waveguide filter and transformer: A microwave waveguide filter comprises an input waveguide section; an output waveguide section; a plurality of resonator sections disposed between the input and output waveguide sections; and a plurality of coupling sections disposed on either side of each of the resonator sections; wherein the input waveguide section, the resonator sections,... Agent: Nasa Goddard Space Flight Center

20070262836 - Planar mixed-signal circuit board: A mixed-signal circuit board can provide a flexible arrangement of multiple RF transmission mediums in a single lightweight and compact structure as well as support embedding electronic devices within RF transmission paths. The transmission mediums may include a voided waveguide, a dielectric waveguide, a microstrip, a suspended microstrip, a traditional... Agent: King & Spalding LLP

20070262837 - Waveguide interface adapter and method of manufacture: A waveguide interface for a waveguide having a split ring with a first half and a second half joined by a web portion. The split ring first half and second half having an inner surface configured to mate with an exterior of the waveguide, the first half and the second... Agent: Babcock Ip, PLLC

20070257743 - Method for testing plasma reactor multi-frequency impedance match networks: In one implementation, a method is provided for testing a plasma reactor multi-frequency matching network comprised of multiple matching networks, each of the multiple matching networks having an associated RF power source and being tunable within a tunespace. The method includes providing a multi-frequency dynamic dummy load having a frequency... Agent: Aagaard & Balzan, LLP Suite 105

20070257744 - Interpolating programmable gain attenuator: A programmable gain attenuator includes a termination resistor. A first termination switch connects one side of the termination resistor to a first output. A second termination switch connects another side of the termination resistor to a second output. A first resistor ladder is arranged between a first input and the... Agent: Sterne, Kessler, Goldstein & Fox P.l.l.c.

20070257745 - Method and apparatus for changing the polarization of a signal: A method and apparatus for changing the polarization of an input signal includes propagating a polarized input signal having orthogonal E-field components by at least one surface each having a respective surface impedance and varying at least one of the surface impedances to shift the phase of one of the... Agent: Koppel, Patrick & Heybl

20070257746 - Dual bandpass filter having serial configuration of coupled-line filters: Two second-order bandpass filter are connected serially to obtain a dual bandpass filter. One is inductive and the other is capacitive. One has a low passband and the other has a high passband. Between them, a finite transmission zero is formed to suppress noise. The present invention achieves a passband... Agent: Troxell Law Office PLLC

20070257747 - Active capacitor: The present invention provides an active capacitor comprising an input terminal, a primary all-pass type 90° phase-advanced stage constituted of discrete elements, and a phase inversion amplifying stage and including a constitution in which a signal supplied to the input terminal is inputted to the primary all-pass type 90° phase-advanced... Agent: Trexler, Bushnell, Giangiorgi, Blackstone & Marr, Ltd.

20070257748 - Active inductor: The present invention provides an active inductor comprising an input terminal, a primary all-pass type 90° phase-delayed stage constituted of discrete elements, and a phase inversion amplifying stage and including a constitution in which a signal supplied to the input terminal is inputted to the primary all-pass type 90° phase-delayed... Agent: Trexler, Bushnell, Giangiorgi, Blackstone & Marr, Ltd.

20070257749 - Coupling a signal through a window: A device and method is provided that includes a window for coupling a signal between cavities of a device or between cavities of different devices. A wall or microstructure is formed on a surface and defines a cavity. The window is formed in the wall and comprises at least a... Agent: Davidson Berquist Jackson & Gowdey LLP

20070257750 - Reconfigurable cavity resonator with movable micro-electromechanical elements as tuning elements: One inventive aspect relates to a reconfigurable cavity resonator. The resonator comprises a cavity delimited by metallic walls. The resonator further comprises a coupling device for coupling an electromagnetic wave into the cavity. The resonator further comprises a tuning element for tuning a resonance frequency at which the electromagnetic wave... Agent: Knobbe Martens Olson & Bear LLP

20070257751 - Guiding devices for electromagnetic waves and process for manufacturing these guiding devices: The invention relates to electromagnetic wave guiding devices or waveguides (f<10 THz) and to processes for manufacturing these waveguides, which comprise at least one body (30) supporting at least one active wall (40). The body (30) of the waveguide is made from a volume of a ceramic selected from the... Agent: Lowe Hauptman & Berner, LLP

20070252658 - Inductive coupling circuit and telecommunication method by sheated cables of an electrical current distribution network: The various designs of capacitive or inductive coupling/decoupling fitted on cables in a medium voltage network are known, the inductive coupling circuits constantly inducing current in the sheath of the electric cable. The invention aims at obtaining ranges of capacitive coupling/decoupling for an inductive coupling circuit. Therefore, an inductive coupling... Agent: Kohler Schmid Moebus

20070252659 - Filter circuit, differential transmission system having same, and power supply: In a filter circuit (1), a common mode choke (2) and a normal mode choke (3) have extremely high and low impedances, respectively, for common mode signals received through two input terminals (1a and 1b). The chokes have the opposite impedance characteristics for differential signals. In particular, the difference in... Agent: Wenderoth, Lind & Ponack L.L.P.

20070252660 - Single-substrate planar directional bridge: A directional bridge circuit is formed on a single substrate. The substrate has an access hole and is housed in a conductive package. A pedestal extends from the conductive package and enables a physical connection between the directional bridge circuit and the pedestal through the access hole.... Agent: Agilent Technologies Inc.

20070252661 - Manifold combiner for multi-station broadcast sites apparatus and method: A manifold combiner for a plurality of radio frequency electromagnetic signals includes a first RF bandpass filter element with input and output ports and a first junction element, wherein the first junction element includes a first port connected to the first filter output port, a second port connected to a... Agent: Baker & Hostetler LLP

20070252662 - Filter and duplexer: A filter includes piezoelectric thin-film resonators having a substrate, a lower electrode supported by the substrate, a piezoelectric film provided on the lower electrode, and an upper electrode provided on the piezoelectric film. At least one of the piezoelectric thin-film resonators has a portion in which the upper electrode overlaps... Agent: Arent Fox PLLC

20070252663 - Laser marked catv filter: A CATV filter assembled inside a housing has the housing marked by a laser system with indicia relating to specific characteristics of the filter. The housing is thus not mechanically deformed during the step of marking, resulting in unchanged RF characteristics of the filter as a result of the marking.... Agent: Pastel Law Firm

20070252664 - Noise suppression circuit: The present invention realizes a noise suppression circuit capable of suppressing noise in a wide frequency range even if impedance fluctuates on the input side or the output side. A noise suppression circuit has first and second inductors (L1, L2) inserted in series in a first conductive line (3), and... Agent: Oliff & Berridge, PLC

20070252665 - System for connecting waveguides: A connecting system can couple two waveguides to one another, wherein each of the waveguides comprises a flange or a protruding rim. When the waveguides are connected together, the flanges can face one another in an adjoining arrangement. The connecting system can comprise two members, each having a groove, recess,... Agent: King & Spalding LLP

20070252666 - Pin diode network for multiband rf coupling: A PIN diode network includes a parallel inductor. In the off state of the PIN diode, the inductor forms a resonant tank circuit in parallel with the PIN diode. The inductor is selected based on the stray capacitance of the PIN diode so that the self resonant frequency (SRF) of... Agent: Carr & Ferrell LLP