Wave transmission lines and networks inventions 09/09

20090237172 - Transmission line systems and apparatuses: Systems having three coupled transmission lines designed in such a way that any two of which taken together can be used as a differential transmission line with a roughly equal differential mode characteristic impedance while achieving high level of common mode characteristic impedance. The high level of common mode characteristic... Agent: Qualcomm Incorporated

20090237173 - Radiofrequency or hyperfrequency circulator: A circulator with at least three ports (p1, p2, p3) comprises two identical electromechanical micro-switches of the series type (MEMS1, MEMS2) formed on the same substrate, a first micro-switch being disposed in order to allow the transmission of a radiofrequency or microwave signal from an input port (p1) to a... Agent: Lowe Hauptman & Berner, LLP

20090237174 - Integrated circuit device, electro-optical device, and electronic instrument: An integrated circuit device includes a high-speed serial interface circuit that includes a receiver circuit that receives differential signals through a serial bus, first and second guard terminals that prevent radiation, first and second terminals that are disposed between the first and second guard terminals and receive the differential signals,... Agent: Oliff & Berridge, PLC

20090237175 - Compact balun transformers: Balun transformers are described wherein multiple transformer loops are implemented in a stacked design with the primary and secondary loops overlying one another. By aligning the loops in a vertical direction, instead of offsetting the loops, the area of the device is reduced. Multiple transformer loops are nested on each... Agent: Law Office Of Peter V.d. Wilde

20090237176 - Thin film balun: A thin film balun according to the present embodiment includes: an unbalanced transmission line which includes two coils 11 and 12; a balanced transmission line 3 which includes two coils 21 and 22 and which magnetically couples with the unbalanced transmission line; a capacitor 4 having one end connected to... Agent: Oliff & Berridge, PLC

20090237177 - Miniaturized microwave sampler: A miniaturized microwave sampler has a first substrate and a second substrate mounted together on a mounting surface, a ground layer formed on the mounting surface, a slot-line formed on the ground layer. A first microstrip line is formed on a top surface of the first substrate and has a... Agent: Cooper & Dunham, LLP

20090237178 - Circuit device having inductor and capacitor in parallel connection: A circuit device having an inductor and a capacitor in parallel connection includes a planar inductor embedded in an insulating material layer, wherein the planar inductor has a winding wire portion, a first connection terminal and a second connection terminal. The first connection terminal and the second connection terminal are... Agent: Jianq Chyun Intellectual Property Office

20090237179 - System and method for using mems filter bank: A method and apparatus for recovering at least one signal of interest are provided. The method includes receiving an overall signal, the overall signal including the at least one signal of interest and a plurality of other signals, identifying at least one of the strongest components of the plurality of... Agent: Steptoe & Johnson LLP

20090237180 - Band-pass filter device, method of manufacturing same, television tuner, and television receiver: A band-pass filter device includes: a plurality of band-pass filter elements on a principal plane of a substrate; wherein the band-pass filter elements correspond to a plurality of respective channels divided by frequency regions, and each have a plurality of piezoelectric resonators. Each of the piezoelectric resonators includes a piezoelectric... Agent: K&l Gates LLP

20090237181 - Surface acoustic wave device: A surface acoustic wave device which uses a Rayleigh wave as a surface acoustic wave includes an IDT electrode provided on a piezoelectric substrate composed of quartz having Euler angles of (0°±5°, 0° to 140°, 0°±40°), a piezoelectric film composed of c-axis oriented ZnO arranged so as to cover the... Agent: Murata Manufacturing Company, Ltd. C/o Keating & Bennett, LLP

20090237182 - Compact single-to-balanced bandpass filter: A compact single-to-balanced bandpass filter is proposed in this invention. Firstly, a pre-design circuit is presented, which is composed of an inductive coupled-line (ICL) bandpass filter and an out-of-phase capacitive coupled-line (CCL) bandpass filter. A novel compact circuit with three coupled lines configuration, derived from the pre-design circuit, is then... Agent: Bacon & Thomas, PLLC

20090237183 - Low-pass filter: A low-pass filter includes an input portion inputting an electromagnetic signal, an output portion outputting the electromagnetic signal, a high impedance transmission portion electrically connecting the input portion and the output portion to transmit the electromagnetic signal therebetween, and a pair of low impedance transmission members arranged on opposite sides... Agent: PCe Industry, Inc. Att. Steven Reiss

20090237184 - Filter with crosses: The invention relates to a process for the production of a microwave waveguide having a step of determining the zone or zones (z1) of the waveguide (g1) where an electric field concentration occurs. A step of produces at least one enlargement (el1) of the waveguide in the zone or zones... Agent: Lowe Hauptman & Berner, LLP

20090237185 - Variable radio frequency band filter: A variable radio frequency band filter includes a housing with a plurality of cavities, a plurality of resonators, wherein one resonator is arranged in each cavity, and a tuning arrangement having a plurality of tuning structures. One of the tuning structures is arranged in each of the cavities. The tuning... Agent: Staas & Halsey LLP

20090237186 - Semiconductor device having shield structure: A semiconductor device comprises a semiconductor substrate; a diffusion layer formed on the semiconductor substrate; at least two wiring layers formed opposite to each other over the semiconductor substrate; signal lines for transmitting a signal maintaining a predetermined voltage, each of the signal lines being formed in each of the... Agent: Sughrue Mion, PLLC

20090231054 - Multiple-carriages high gamma tuner: The present invention discloses a class of independent or linked facing tuning elements to be used in loadpull high gamma slide-screw tuner consisting of a radio-frequency (RF) transmission media comprising impedance tuning elements such as probes, corrugated probes, multi-section probes or single stub/double stub harmonic resonators. Multiple carriages can support... Agent: Boulerne Philippe

20090231067 - Temperature compensation attenuator: A temperature compensation attenuator formed from a base, a serial film thermistor having two ends, a parallel film resistor, an input terminal, and an output terminal. The serial film thermistor and the parallel film resistor are disposed on the base, the input terminal and the output terminal are connected to... Agent: Matthias Scholl

20090231069 - Compensated attenuator circuit and oscilloscope utilizing the same: An attenuator circuit. The attenuator circuit includes a resistive divider coupled to a capacitive network including first and second capacitive dividers. The resistive divider is configured to perform an N:1 attenuation of a signal in a low frequency range. The first and second capacitive dividers are configured to perform an... Agent: Meyertons, Hood, Kivlin, Kowert & Goetzel, P.C.

20090231068 - Filter-attenuator chip device: A microchip device is disclosed that combines a signal attenuator and a frequency filter. An embodiment of the device includes an input contact, an output contact, and a ground contact formed on the surface of a substrate. Resistive elements formed on the substrate interconnect the contacts. At least the input... Agent: Dann, Dorfman, Herrell & Skillman

20090231055 - Multi-level power amplification system: In general, in accordance with an exemplary aspect of the present invention, an electrical system configured to use power combining of microwave signals, such as those from monolithic microwave integrated circuits or MMICs is provided. In one exemplary embodiment, the system of the present invention further comprises a low loss... Agent: Snell & Wilmer L.l.p (usm/viasat)

20090231056 - Band combining filter: with R and T being reflection and transmission functions respectively. The directional filters are connected in a cascade with the first and second inputs of the nth directional filter being connected to the first and second outputs of the (n−1)th directional filter respectively in the cascade. At least one of... Agent: Howard & Howard Attorneys PLLC

20090231057 - Directional coupler: A directional coupler which can adjust a degree of coupling easily and by comparatively low cost is provided. A directional coupler has a substrate, a 1st transmission line formed on the substrate, a 2nd transmission line formed on the substrate, and a coupling substrate provided with a 3rd transmission line... Agent: Oblon, Spivak, Mcclelland Maier & Neustadt, P.C.

20090231058 - Band-pass filter: Provided is a band-pass filter having a small phase change in a pass band and a steep frequency characteristic. The band-pass filter includes: a four-terminal pair 90-degree hybrid circuit (10) for distributing power into two directions with a phase difference of 90 degrees; and a band elimination filter circuit including... Agent: Birch Stewart Kolasch & Birch

20090231059 - Antenna feed copling structure of a duplexer: An antenna feed coupling structure of a duplexer is disclosed to include a base defining a detoured resonance cavity and a T-shaped feed-in cavity perpendicularly intersecting the resonance cavity and a signal input port in connection with the head of the feed-in cavity, a cover closing the base, and adjustment... Agent: Universal Microwave Technology, Inc.

20090231060 - Ladder resonator filter and related system: An apparatus includes a plurality of resonators forming a filter. At least one of the resonators includes (i) a plurality of interdigital transducers positioned in a common acoustic track and (ii) a plurality of reflectors configured to reflect acoustic waves from the interdigital transducers back to the interdigital transducers. At... Agent: Docket Clerk

20090231061 - Lamb-wave resonator and oscillator: A Lamb-wave resonator includes: a piezoelectric substrate; an interdigital transducer electrode formed on a main surface of the piezoelectric substrate, the interdigital transducer electrode including a plurality of electrode finger elements being interdigitated, and a bus bar electrode coupling the plurality of electrode finger elements; and a pair of reflectors... Agent: Oliff & Berridge, PLC

20090231062 - Filter with multiple shunt zeros: A filter including at least two resonator through-holes defining apertures in the top surface surrounded by respective plates which in combination with associated through-holes define primary and secondary shunt zeros providing low ripple and high rejection adjacent the bandpass. In one embodiment, the through-hole of the primary shunt zero is... Agent: Daniel J. Deneufbourg Cts Corporation

20090231063 - Low-pass filter: A low-pass filter (10) includes an input portion (100) inputting an electromagnetic signal, an output portion (120) outputting the electromagnetic signal, a high impedance transmission portion (140) electrically connected to the input portion and the output portion to transmit the electromagnetic signal therebetween, a first low impedance transmission portion (160)... Agent: PCe Industry, Inc. Att. Steven Reiss

20090231064 - Wideband dielectric waveguide filter: A waveguide-type dielectric filter suitable for wideband filter applications made of a metallized dielectric material is provided. The filter includes two or more mutually coupled resonators disposed in a longitudinal manner. The coupling between adjacent resonators is provided and adjusted by slots or through holes. The dielectric block is covered... Agent: Burr & Brown

20090231065 - Circuit structure and circuit substance for modifying characteristic impedance using different reference planes: A circuit structure for modifying characteristic impedance by using different reference planes is provided. The structure comprises an analog signal line, a digital signal line, a corresponding reference plane for analog signals and a corresponding reference plane for digital signals. Wherein, the line width of the analog signal line is... Agent: Apex Juris, PLLC

20090231066 - Transmission element for workpiece connections to be axially compressed and configuration for producing a nondetachable connection: The present invention is based on the technical problem of specifying a transmission element, using which a permanent nondetachable connection is producible employing an axial pressing technique using simple means. The technical problem is solved by a transmission element for workpiece connections to be axially compressed, with a flange section... Agent: Proskauer Rose LLP

20090224846 - Wide bandwidth microwave balun: A wide bandwidth microwave balun utilizes frequency band splitting and two conventional baluns operating in a high frequency band and a low frequency band, which when combined offer a full bandwidth output, thus to offer wide bandwidth impedance matching and second-harmonic rejection.... Agent: Robert K. Tendler

20090224847 - Methods and apparatus for supporting communications using antennas associated with different polarization directions: A communications device, e.g., a mobile wireless terminal, includes a plurality of antennas having different polarization directions. The plurality of antennas includes a first antenna and second antenna which are operated in a coordinated fashion. During reception a signal received via the first antenna is subjected to a phase shift... Agent: Qualcomm Incorporated

20090224848 - electromagnetic transmission line arrangement with a phase shifter: There is disclosed an electromagnetic transmission line arrangement with a phase shifter, comprising at least one conductive branch line (51a,51b) extending from a junction point (51c) to an associated output port, for the propagation of electromagnetic signals in a frequency band along said branch line. The phase shifter includes at... Agent: Myers Andras Sherman LLP

20090224849 - Band pass filter: There is provided a band pass filter including: a stacked body having a stacked structure of a plurality of dielectric sheets; and a plurality of elements provided in the stacked body, the plurality of elements including: a first capacitor electrode; a second capacitor electrode partially overlapping the first capacitor electrode... Agent: Lowe Hauptman Ham & Berner, LLP

20090224851 - Electrical component and production method: What is proposed is a preferably surface mounted electrical component with sensitive component structures which are arranged on the front side of two substrates. The substrates are joined with their front sides facing each other in such a manner that a cavity will remain for the component structures. The outer... Agent: Fish & Richardson PC

20090224850 - Tortional resonator and filter using this: A vibrator is a beam structure or a paddle-like projection structure added onto a beam structure and an electrostatic force produced due to the potential difference between an electrode and the vibrator adds a moment with the axis of the beam of the vibrator as the center axis, but does... Agent: Pearne & Gordon LLP

20090224854 - Acoustic wave filter: An acoustic wave filter includes a piezoelectric substrate, an IDT (interdigital transducer) formed on the piezoelectric substrate, and reflectors located at both sides of the IDT and composed of electrode fingers, at least one of the electrode fingers of at least one of the reflectors including at least one gap... Agent: Arent Fox LLP

20090224852 - Acoustic wave filter device: An acoustic wave filter device having a balanced-to-unbalanced conversion function, in which the signal balance between a pair of balanced terminals is improved, has, on a piezoelectric substrate, one end of at least of one longitudinally coupled resonator type acoustic wave filter and one end of at least one acoustic... Agent: Murata Manufacturing Company, Ltd. C/o Keating & Bennett, LLP

20090224853 - Piezoelectric substrate and surface acoustic wave filter using the same: Disclosed are a piezoelectric substrate and a surface acoustic wave (SAW) filter. A piezoelectric substrate 10a includes a base member 11 including an oxide layer 12 with a plurality of grooves 12a on one surface of the base member 11; a buffer member 13 being formed on the oxide layer... Agent: Rosenberg, Klein & Lee

20090224855 - Resonant element and high frequency filter, and wireless communication apparatus equipped with the resonant element or the high frequency filter: What is disclosed is a resonant element that causes a signal input from an input terminal to resonate at a predetermined resonance frequency and outputs it to an output terminal. The element has a transmission line series that includes a plurality of transmission lines connected in series with each other... Agent: Crowell & Moring LLP Intellectual Property Group

20090224856 - Wireless energy transfer: Disclosed is an apparatus for use in wireless energy transfer, which includes a first resonator structure configured to transfer energy non-radiatively with a second resonator structure over a distance greater than a characteristic size of the second resonator structure. The non-radiative energy transfer is mediated by a coupling of a... Agent: Fish & Richardson PC

20090224857 - High frequency device equipped with rectangular waveguide: There are provided a waveguide plate that is made of metallic plates through which through holes are formed and a pair of resin made substrates (first and second substrates) on which a grounding pattern is formed to cover the through holes. Both the waveguide plate and the substrates are laminated... Agent: Harness, Dickey & Pierce, P.L.C

20090224858 - High frequency device equipped with plurality of rectangular waveguide: Long-side length a1 to a5 of rectangular waveguide tubes in a long-side direction (magnetic field direction) become greater, the shorter a line length is (the closer a rectangular waveguide tube is to the center). ai and Li are set such that line lengths L1 to L5 of each rectangular waveguide... Agent: Harness, Dickey & Pierce, P.L.C

20090224859 - Galvanic isolation mechanism for a planar circuit: A mechanism is provided for coupling a coaxial cable to a planar circuit to provide galvanic isolation between the coaxial cable and the planar circuit while providing low transmission loss and reflections between the coaxial cable and the circuit. The mechanism comprises a co-planar waveguide coupled to the coaxial cable,... Agent: Siemens Corporation Intellectual Property Department

20090219106 - Two-port isolator: A two-port isolator comprising a central conductor assembly comprising first and second central conductors disposed on a ferrite plate, the first central conductor being connected between a first input/output port and a second input/output port, and the second central conductor being connected between a second input/output port and a ground,... Agent: Sughrue Mion, PLLC

20090219117 - Plug-in device for signal correction: Described herein are systems and methods for a JXP-type plug-in device that may be inserted within existing transmission equipment, such as RF amplifiers and the like, to provide an appropriate amount of flat attenuation to the lower frequencies of signals being processed in the equipment while allowing desired peaking at... Agent: Motorola, Inc. Law Department

20090219107 - Adjustable low-loss interface: In general, in accordance with an exemplary aspect of the present invention, a low-loss interface for connecting an integrated circuit such as a monolithic microwave integrated circuit to an energy transmission device such as a waveguide is disclosed. The interface comprises an isolation wall placed between an input and output... Agent: Snell & Wilmer L.l.p (usm/viasat)

20090219108 - Apparatus and method for increasing sensitivity of ultrasound transducers: An acoustical stack for use within an ultrasound transducer that has a center frequency has a poled piezoelectric material layer and at least one impedance matching layer. The poled piezoelectric material layer has top and bottom sides and is formed of poled piezoelectric material that has a first acoustic impedance.... Agent: Dean D. Small The Small Patent Law Group LLP

20090219109 - Microwave combiner/splitter: A power amplifier (power amplifier) having multiple solid state sub-amplifiers connected in parallel between the power amplifier input and the power amplifier output are described. The signal input to the power amplifier is provided to an RF splitter connected between the power amplifier input connector and the input of each... Agent: Knobbe Martens Olson & Bear LLP

20090219110 - Merged-filter multiplexer: A multiplexer circuit may include a first-frequency-quarter-wavelength transmission line extending between a junction between a common terminal and a second-frequency terminal, and a first-frequency low-impedance circuit electrically directly connecting the first transmission line to a circuit ground. In some examples, a second-frequency-quarter-wavelength transmission line may extend between the first transmission... Agent: Kolisch Hartwell, P.C.

20090219111 - Phase shifter with flexible control voltage: The invention provides a phase shifter with flexible control voltage that is useful with all RF systems that phase shift a RF signal. The phase shifter according to the present invention may comprise transistors used as switching elements. In one aspect, the phase shifter provides the option of controlling a... Agent: Snell & Wilmer L.l.p (usm/viasat)

20090219112 - Phase shifter with flexible control voltage: The invention provides a phase shifter with flexible control voltage that is useful with all RF systems that phase shift a RF signal. The phase shifter according to the present invention may comprise transistors used as switching elements. In one aspect, the phase shifter provides the option of controlling a... Agent: Snell & Wilmer L.l.p (usm/viasat)

20090219114 - Apparatus, method, and computer program product providing edgeless carbon nanotube resonator arrays: A nanotube apparatus is described. The apparatus includes a first electrode having a first edge. An array of nanotubes distributed in a closed path are also included. The closed path surrounds the first electrode and adjacent to the first edge. The closed path is also locally straight. Each of the... Agent: Harrington & Smith, PC

20090219113 - Method for gap adjustment of two mechanical elements of a substantially planar micromechanical structure and corresponding electromechanical resonator: The invention concerns a method for adjusting the operating gap of two mechanical elements of a substantially planar mechanical structure obtained by micro-etching. The method consists in attributing (A) to one of the elements (E) a fixed reference position (RF) in the direction of the residual gap separating said elements;... Agent: Stites & Harbison PLLC

20090219115 - Resonant element and method for manufacturing the same: A plurality of flat-plate filter elements are placed on a pallet having a plurality of holding holes. Each of the filter elements includes a rear-principal-surface electrode pattern having a ground electrode provided on a rear principal surface and a front-principal-surface electrode pattern having a principal-surface electrode provided on a front... Agent: Dickstein Shapiro LLP

20090219116 - Cable to waveguide transition apparatus having signal accumulation form of backshort and active phase shifting using the same: A cable to waveguide transition apparatus having a signal accumulation form of a backshort is disclosed. The cable to waveguide transition apparatus having a signal accumulation form of a backshort, includes: a waveguide; a RF probe for transferring a radio frequency (RF) signal to the waveguide; and a backshort having... Agent: Blakely Sokoloff Taylor & Zafman LLP