Wave transmission lines and networks inventions 07/09

20090189708 - Coupling cancellation scheme: Methods and apparatus are disclosed, such as those involving an interconnection layout for an integrated circuit (IC). One such layout includes a plurality of differential pairs of lines. Each differential pair has two lines including one or more parallel portions extending substantially parallel to each other. Each pair also includes... Agent: Knobbe Martens Olson & Bear LLP

20090189717 - Circular polarized coupling device: A coupling device for transmitting a wireless signal is provided. The coupling device includes a substrate, a ground layer and a feed conductor. The substrate includes a first surface and a second surface opposite to the first surface. The ground layer is disposed on the second surface having a circular... Agent: Quintero Law Office, PC

20090189709 - Signal splitter with improved transmisson line transformer: A splitter circuit for use in a CATV network. A signal input communicates with a first balun to supply two signal outputs, wherein the first balun is impedance matched to the impedance of the input using two or more additional baluns in parallel with each other. The additional baluns are... Agent: Abelman, Frayne & Schwab

20090189710 - Dual-frequency matching circuit: The connection topology of input terminals (2), elements (4a, 4b, 4c and 4d) and load (5) is designed similarly to a “seven-segment display” that is often used to display numerals on a calculator or a digital watch. Specifically, suppose in the three horizontally running segments of the seven-segment display, the... Agent: Mcdermott Will & Emery LLP

20090189711 - Rf system having a one-dimensional nanostructure multi-port coupler: A one-dimensional nanostructure multi-port coupler (100, 300, 400, 600) is provided for use in an RF device (700). The coupler (100, 300, 400, 600) includes a first plurality of one-dimensional nanostructures (102) aligned substantially in a first direction (110) and coupled between the input (103) and first output (103′), and... Agent: Ingrassia Fisher & Lorenz, P.C. (mot)

20090189712 - Spiral coupler: An improved spiral coupler including a plurality of parallel, coextensive conductive strips disposed in a planar spiral path, including a first strip having an input port and a direct or through port, a second strip having a coupler port and an isolated port and a first cross-over connection for bridging... Agent: Iandiorio Teska & Coleman

20090189713 - Voltage controlled on-chip decoupling capacitance to mitigate power supply noise: A method and system for reducing the noise level of a power supply system with the implementation of a voltage controlled decoupling capacitor in an electrical circuit. Voltage variations of the power supply caused by switching currents are detected by a voltage sensor control circuit. The voltage sensor circuit compares... Agent: Dillon & Yudell LLP

20090189714 - Layered low-pass filter: A layered low-pass filter includes: a first inductor and a second inductor that are connected in series and are located between an input terminal and an output terminal; a first capacitor connected in parallel to the first inductor; a second capacitor connected in parallel to the second inductor; and third... Agent: Oliff & Berridge, PLC

20090189715 - Layered low-pass filter: A layered low-pass filter includes: a layered substrate; an input terminal, an output terminal and a grounding terminal each disposed on a periphery of the layered substrate; first and second inductors connected in series and provided between the input terminal and the output terminal; first to fifth capacitors formed within... Agent: Oliff & Berridge, PLC

20090189716 - Filter device with finite transmission zeros: A filter device with transmission zeros is provided according to the present invention, which has an odd mode resonant frequency and an even mode resonant frequency. The filter device includes: a substrate, a metallic rectangular ring, a signal couple-in/couple-out module, and a metallic ground plane, wherein the surface of said... Agent: Law Offices Of Mikio Ishimaru

20090189718 - Transistor single-pole-single-throw circuit device: A transistor single-pole-single-throw circuit device includes at least a transistor single-pole-single-throw circuit having a first transistor and a second transistor, and an inductor capacitor (LC) resonator having an inductor and a capacitor connected in series, allowing two ends of the LC resonator connected to the first source and the first... Agent: Pearne & Gordon LLP

20090184778 - Substrate having a structure for suppressing noise generated in a power plane and/or a ground plane, and an electronic system including the same: A substrate includes a power plane and a ground plane that are placed apart from and are substantially parallel to each other, and at least one signal line that is placed between the power plane and the ground plane. The ground plane includes a first conductive layer having a first... Agent: F. Chau & Associates, LLC

20090184779 - Wireless communication module: A wireless communication module includes a laminated substrate where a plurality of dielectric sheets are laminated, a band pass filter, a balun circuit, and first and second matching circuits. The band pass filter is formed in the laminated substrate. The balun circuit is formed in the laminated substrate, and includes... Agent: Mcdermott Will & Emery LLP

20090184785 - Attenuator: A π-type voltage-controlled variable attenuator is disclosed. The variable attenuator may include variably resistive components in the series and shunt arms. The variably resistive components may be implemented as field effect transistors. The shunt arms may be coupled to the series arm, and the variable attenuator may lack capacitors between... Agent: Wolf Greenfield & Sacks, P.C.

20090184780 - Variable phase shifter: Disclosed is a variable phase shifter, the variable phase shifter including: a fixed board which is fixedly provided in a housing, and consisting of a dielectric board, and consisting of a dielectric board, having a second transfer stripline having at least one arc-shaped output micro stripline on one surface; a... Agent: Storm LLP

20090184781 - Resonator: A resonator that can alleviate restrictions in usage and design due to the bias voltage dependency and for which usage and design conditions can be easily determined. The resonator comprises a fixed electrode, a movable electrode opposite and sandwiching the fixed electrode, and an extension of the fixed electrode or... Agent: Volentine & Whitt PLLC

20090184782 - Electromagnetic bandgap structure and printed circuit board: Disclosed are an electromagnetic bandgap structure and a printed circuit board. In accordance with an embodiment of the present invention, the electromagnetic bandgap structure can include a dielectric layer; a plurality of conductive plates; a stitching via, configured to pass through the dielectric layer and have a part electrically connecting... Agent: Staas & Halsey LLP

20090184783 - Resonant structure comprising wire, resonant tunneling transistor, and method for fabricating the resonant structure: A resonant structure is provided, including a first terminal, a second terminal which faces the first terminal, a wire unit which connects the first terminal and the second terminal, a third terminal which is spaced apart at a certain distance from the wire unit and which resonates the wire unit,... Agent: Dla Piper LLP Us

20090184784 - Reference plane voids with strip segment for improving transmission line integrity over vias: Reference plane voids with a strip segment for improving transmission line integrity over vias permits routing critical signal paths over vias, while increasing via insertion capacitance only slightly. The transmission line reference plane defines voids above (or below) signal-bearing plated-through holes (PTHs) that pass through a rigid substrate core, so... Agent: Ibm Corporation (mh) C/o Mitch Harris, Attorney At Law, L.L.C.

20090179710 - Electromagnetic interference eliminating apparatus: An electromagnetic interference eliminating apparatus includes a multi-stage filter that is composed of inductors, capacitors and resistors, and an active filter. The multi-stage filter receives an input signal and provides an eliminating band to eliminate the noise in the input signal. The active filter is connected with the multi-stage filter... Agent: Rosenberg, Klein & Lee

20090179711 - Matching circuit: The present invention has for its object to provide a matching circuit with multiband capability which can be reduced in size, even if the number of handled frequency bands rises. The matching circuit of the present invention comprises a load having frequency-dependent characteristics, a first matching block connected with one... Agent: Oblon, Spivak, Mcclelland Maier & Neustadt, P.C.

20090179712 - Electric apparatus: An electric apparatus capable of stably transmitting signals in a high frequency band (high speed signals) by preventing distortion of a signal waveform through impedance control is disclosed. The electric apparatus includes a case having a signal line which transmits signals between electronic parts, a dielectric deposited on the case... Agent: Staas & Halsey LLP

20090179713 - Low pass filter incorporating coupled inductors to enhance stop band attenuation: The present invention relates to a low pass filter incorporating coupled inductors to enhance stop band attenuation. In one embodiment, the coupled inductors are provided along with various capacitors to provide for superior performance within a smaller surface area of a semiconductor or ceramic integrated device. In a further specific... Agent: Pillsbury Winthrop Shaw Pittman LLP

20090179714 - Harmonic termination of power amplifiers using baw filter output matching circuits: A system, apparatus and method for providing filtering functionality and impedance transformation within a BAW resonator network are disclosed. In particular, a BAW resonator network is designed to provide bandpass capability and a transformation between its input impedance and output impedance. By effectively integrating impedance matching functionality within the BAW... Agent: North Weber & Baugh LLP

20090179715 - Surface acoustic wave filter device and duplexer: A surface acoustic wave filter device includes first and second longitudinally coupled resonator type surface acoustic wave filter units. The first and second filter units are cascade-connected to each other. A phase of a signal flowing through a first signal line electrically connecting second IDTs of the first and second... Agent: Murata Manufacturing Company, Ltd. C/o Keating & Bennett, LLP

20090179716 - Rf filter device: The present invention is directed to an integrated filter device for an implantable element. The device includes at least one filter component having N-circuit layers, N being an integer greater than or equal to one. Each of the N-circuit layers includes a first dielectric material having a first conductive material... Agent: Bond, Schoeneck & King, PLLC

20090179717 - Ferrite filter comprising aperture-coupled fin lines: A magnetically-tunable filter comprising a filter housing with two tunable resonator spheres made of magnetizable material, which are disposed one above the other in two filter arms. At least one filter arm provides a fin line or slot line disposed on a substrate layer and extending in the direction towards... Agent: Marshall, Gerstein & Borun LLP

20090174496 - Load-line adaptation: According to the general concept disclosed herein, a circuit for adaptive matching of a load impedance to a predetermined load-line impedance of a load-line connected to a power amplifier output includes a fixed matching network between the power transistor and an adaptive matching network, whereby the fixed matching network acts... Agent: Slater & Matsil, L.L.P.

20090174506 - Waveguide and method for adjusting waveguide structure thereof: A waveguide comprises a connecting part, a main chamber and a buffer. The connecting part is connected to the main chamber via the buffer. The side length of the junction between the connecting part and the buffer is smaller than that of the junction between the buffer and the main... Agent: Wpat, PC Intellectual Property Attorneys

20090174507 - On-die termination circuit: Methods and apparatuses to terminate transmission lines using voltage limiters. In one aspect, a termination circuit is integrated on a substrate to terminate a transmission line connected from outside the substrate. The termination circuit includes: a port to interface with the transmission line; a first resistive path including a first... Agent: Ivy Y. Mei

20090174497 - Electrical module: An electrical module with a first substrate, and a component mounted on the first substrate is specified. The component includes a second substrate and a chip arranged on the second substrate. In the module, a filter circuit is realized that includes shunt arms connected to ground each with at least... Agent: Slater & Matsil, L.L.P.

20090174498 - Rf switch device, magnetic resonance imaging system and an rf signal transmission method: A radio frequency (RF) switch device has at least two RF switch units, each RF switch unit having an output terminal and at least two input terminals. The RF switch units select one channel of RF signals from several channels of the RF signals that are supplied as inputs to... Agent: Schiff Hardin, LLP Patent Department

20090174499 - Dielectric waveguide device, phase shifter, high frequency switch, and attenuator provided with dielectric waveguide device, high frequency transmitter, high frequency receiver, high frequency transceiver, radar device, array antenna, and method of manufa: The invention relates to a small and low-voltage operable dielectric waveguide device. First and second electrode are embedded in a dielectric part and are formed to be thinner than a skin depth for a frequency of electromagnetic wave propagating along a first dielectric part included in the dielectric part. Thereby,... Agent: Hogan & Hartson L.L.P.

20090174500 - Continously tunable delay line: A tunable delay line for radiofrequency applications includes a waveguide and a dielectric perturbing member that is displaceable relative to the waveguide for varying the delay imparted by the line. The waveguide is a ridge waveguide and the perturbing member is arranged parallel to a longitudinal end surface of the... Agent: Finnegan, Henderson, Farabow, Garrett & Dunner LLP

20090174501 - Electronically variable inductor, associated tunable filter and methods: The electrically tunable inductive device includes an electromagnet including an electromagnet core and a bias or tuning coil cooperating therewith to define opposing magnetic poles for generating a quiescent magnetic field that may be varied. An inductor is tunable based upon the variable magnetic field and includes an inductor core... Agent: Allen, Dyer, Doppelt, Milbrath & Gilchrist

20090174502 - Printed board and filter using the same: A printed board is mounted with a chip-type solid electrolytic capacitor of a four-terminal structure where a pair of positive electrode terminals are disposed at opposite positions and a pair of negative electrode terminals are disposed at opposite positions on a mounting surface. The printed board has a pair of... Agent: Wenderoth, Lind & Ponack L.L.P.

20090174503 - Integrable tunable filter circuit comprising a set of baw resonators: A tunable filter circuit having inputs IN1-IN2 and outputs OUT1-OUT2, comprising at least a primary four-pole circuit including in cascade: a first varactor having a first electrode connected to IN1 and a second electrode; a first inductive resistor connected between the second electrode of the varactor and input IN2, a... Agent: Seed Intellectual Property Law Group PLLC

20090174505 - Electrical connector with frequency-tuned groundplane: An electrical connector with a frequency-tuned groundplane is disclosed. The connector includes a signal medium to communicate an electrical signal and a frequency-tuned groundplane medium to communicate a reference voltage (i.e., ground). The groundplane medium differentially supplies the reference voltage to the groundplane second end, responsive to the frequency of... Agent: Kyocera Wireless Corp.

20090174504 - Ultra wideband filter: An ultra wideband (UWB) filter (20) disposed on a substrate (10). The UWB filter includes a first transmission portion (22), a second transmission portion (24), a connection portion (26), and a grounded portion (28). The first transmission portion is used for transmitting electromagnetic signals. The second transmission portion is used... Agent: PCe Industry, Inc. Att. Steven Reiss

20090167452 - Transmission characteristic adjustment device, circuit substrate, and transmission characteristic adjustment method: The device determines existence or non-existence of a difference with respect to confirmed data based on each phase of a multiphase clock, detects a window width in a time axis direction of receiving data based on a result of the determination and a phase of the multiphase clock, and evaluates... Agent: Staas & Halsey LLP

20090167453 - Method and apparatus for digital synthesis of microwaves through balanced transmission line structures: Conductor segments are positioned within a transmission line structure in order to generate microwave pulses. The conductor segments are switchably coupled to one or the other of the transmission lines or to each other, in parallel with the transmission line structure. Microwave pulses will be induced in the transmission line... Agent: Bingham Mccutchen LLP

20090167465 - Apparatus and systems for electrically isolating and transmitting rf signals between two devices: Various embodiments of apparatus and systems are provided for electrically isolating two devices while transferring power and RF signals therebetween. An electrical isolation apparatus includes an isolation transformer that operates to transfer electrical power between first and second devices. The electrical isolation apparatus also includes a decoupling device that transfers... Agent: Echostar Technologies, L.L.C. Legal Department

20090167454 - Non-reciprocal circuit device: A non-reciprocal circuit device comprising a first inductance element disposed between a first input/output port and a second input/output port; a second inductance element disposed between the second input/output port and the ground; a first capacitance element constituting a first parallel resonance circuit with the first inductance element; a resistance... Agent: Sughrue Mion, PLLC

20090167455 - Semiconductor device having balanced band-pass filter implemented with lc resonator: A band-pass filter has a plurality of frequency band channels each including a first inductor having a first terminal coupled to a first balanced port and a second terminal coupled to a second balanced port. A first capacitor is coupled between the first and second terminals of the first inductor.... Agent: Robert D. Atkins

20090167457 - Apparatus and method of selecting components for a reconfigurable impedance match circuit: A method of selecting component values for an analog circuit includes identifying a cost function that evaluates similarity between an approximate frequency response function and a preferred frequency response function for at least one characteristic of the functions, determining the approximate frequency response function of the analog circuit based on... Agent: Oblon, Spivak, Mcclelland Maier & Neustadt, P.C.

20090167456 - High speed wideband differential signal distribution: An exemplary device that operates as a differential splitter includes a plurality of differential signal conductors. Each of the conductors is coupled to at least one other of the conductors by a connector and a resistor. The coupled conductors are impedance matched by a combination of a spacing between the... Agent: Carlson, Gaskey & Olds, P.C./alcatel-lucent

20090167458 - Matching circuit: The present invention has for its object to provide a matching circuit with multiband capability which can be reduced in size, even if the number of handled frequency bands rises. The matching circuit of the present invention comprises a load having frequency-dependent characteristics, a first matching block connected with one... Agent: Oblon, Spivak, Mcclelland Maier & Neustadt, P.C.

20090167459 - Duplexer: A duplexer is described herein. The duplexer includes a transmission branch configured to allow passage of signals in a transmission band. The duplexer also includes a reception branch configured to allow passage of signals in a reception band. The duplexer also includes a band rejection filter in the transmission branch... Agent: Fish & Richardson PC

20090167460 - Superconducting tunable filter: A superconducting tunable filter is disclosed that has a center frequency and a bandwidth able to be adjusted separately. The superconducting tunable filter includes a superconducting resonator filter pattern formed on a dielectric substrate; a dielectric or magnetic plate above the resonator filter pattern and having a through-hole; a dielectric... Agent: Kratz, Quintos & Hanson, LLP

20090167461 - Noise eliminating wire harness: There is provided a noise eliminating wire harness capable of enhancing a noise elimination performance. In the wire harness 31, an intermediate portion of a sheath 34 of a wire 33 is removed to expose a conductor 35, thereby forming a conductor connection portion 36, and a capacitor 39 is... Agent: Sughrue-265550

20090167462 - Band pass filter: A band pass filter includes partial filters, each of which has a pass band. Pass bands of different ones of the partial filters have center frequencies that are different. A partial filter with a lowest center frequency has a pass band with a first low-frequency edge and a first high-frequency... Agent: Fish & Richardson PC

20090167463 - Dielectric filter: A dielectric filter having inner-conductor holes penetrating through a dielectric block from a first surface to a second surface thereof. An outer conductor and input/output electrodes are formed on an outer surface of the dielectric block. A side of each of the input/output electrodes facing the first surface is substantially... Agent: Dickstein Shapiro LLP

20090167464 - Cavity filter, an isolation device, and a node in a mobile communications network: The invention relates to a cavity filter comprising at least one tuning conductor (3) presenting a hollow portion (4), an isolation device (6) for a tuning conductor (3) of a cavity filter, and a node in a mobile communications network, comprising a cavity filter. According to the invention, the tuning... Agent: Ericsson Inc.