Wave transmission lines and networks inventions 04/08

20080094149 - Power amplifier matching circuit and method using tunable mems devices: The present disclosure relates to a power amplifier circuit. In one example, the power amplifier circuit includes a power amplifier coupled to a variable load and a digitally tunable impedance matching network (TMN) positioned between the power amplifier and the variable load. The TMN includes at least one controllable capacitor... Agent: Timothy F. Bliss

20080094150 - Component that operates using acoustic waves and method for producing said component: The invention relates to a component operating with guided bulk acoustic waves, GBAW, with a layer system that comprises a piezoelectric layer (PS1) and a first metal layer (ME1) arranged thereon. The layer system forms a waveguide in which the guided bulk acoustic wave is guided in the lateral direction.... Agent: Fish & Richardson PC

20080094151 - Equalization network for balanced cabling: A cable assembly includes a length of balanced cable having at least one twisted pair of wires; a first printed circuit board in electrical connection with a first end of the twisted pair of wires, the first printed circuit board positioned in a first connector for mating with a transmit... Agent: Cantor Colburn, LLP

20080094152 - Modifiable electrical component, and method for modifying the component: At least one electrical component unit, at least one capacitance structure, at least one induction structure, and at least one electrical connection network are included in a modifiable electrical component. The capacitance structure has a first electrode, at least one other electrode, and at least one dielectric arranged between the... Agent: Staas & Halsey LLP

20080094153 - Cancellation of inductor winding capacitance: An inductor device or filter such as an electromagnetic interference (EMI) filter which includes an inductor provides cancellation of parasitic capacitance of the inductor and extends high frequency performance of the inductor or filter by providing the inductor using split windings and including capacitors to couple signals corresponding to those... Agent: Whitham, Curtis & Christofferson & Cook, P.C.

20080094154 - Bulk acoustic wave resonator and filter: A bulk acoustic wave resonator includes an acoustically active area where an acoustic wave is excitable, and a transition area adjacent to an outside edge of the acoustically active area. A critical frequency of the acoustic wave in the transition area differs from a critical frequency of the acoustic wave... Agent: Fish & Richardson PC

20080088392 - Attenuator: A linearizer includes fifth diodes, a third resistor, sixth diodes, and a first n-channel MOS transistor. When a low-level voltage is applied to first and fourth control voltage terminals and a high-level voltage is applied to second and third control voltage terminals, a low-level voltage is applied to a fifth... Agent: Leydig Voit & Mayer, Ltd

20080088387 - Negative feedback circuit and method and apparatus for implementing on-chip impedance matching for transmission line by using same: A negative feedback circuit including: a voltage follower for making the output voltage follow a reference voltage, a proportional current mirror for outputting a current in proportion to a reference current via a reference resistor as a input current of the proportional current mirror, a comparison arbiter for comparing the... Agent: Sughrue Mion, PLLC

20080088388 - Method to improve characteristics of pin diode switches, attenuators, and limiters by control of nodal signal voltage amplitude: A method to improve characteristics of PIN diode switches, attenuators, and limiters via the control of nodal signal voltages by local impedance control.... Agent: Klein, O'neill & Singh, LLP

20080088389 - Charge domain filter device: A charge domain filter device includes a SINC filter with a frequency characteristic expressed by a SINC function, and a bandpass filter connected to an output end of the SINC filter and having a frequency characteristic with a particular center frequency.... Agent: Finnegan, Henderson, Farabow, Garrett & Dunner LLP

20080088390 - Negative capacity circuit for high frequencies applications: A negative capacity circuit comprising: a first branch connected between a first reference voltage and a second voltage reference, said first branch comprising, in series, a first biasing resistor, a first diode, a collector-emitter junction of a first bipolar transistor and a first current source; a second branch connected between... Agent: Seed Intellectual Property Law Group PLLC

20080088391 - Planar circuit, high-frequency circuit device, and transmission and reception apparatus: A planar circuit having a conductive film on either main surface of a substrate. The conductive film on one of the main surfaces is patterned with two-dimensionally and repeatedly arranged unit cells, which are basic conductor patterns. Each of the unit cells has a capacitive region at the center thereof.... Agent: Dickstein Shapiro LLP

20080084254 - Inductance device, filter device comprising the same, and noise filter comprising the same: An inductance device comprises a magnetic core, a coil a conductor and a dielectric member. The coil is made of turns of insulated conductive wire. The conductor is distinct from the coil and is insulated from the magnetic core. The dielectric member is disposed between the conductor and the coil.... Agent: Frishauf, Holtz, Goodman & Chick, Pc

20080084255 - Integrated circuit arrangement and use of connecting lines: An integrated circuit arrangement and a use of connecting lines is provided. The integrated circuit arrangement has an inductive unit and a circuit component, wherein the inductive unit has a first inductor with a first coil and first connecting lines, wherein the first connecting lines connect the first coil to... Agent: Mg-ip Law, Pllc

20080084257 - Reflection-type bandpass filter: Provided is a reflection-type bandpass filter for ultra-wideband wireless data communication, including a substrate. The substrate includes a dielectric layer and a ground layer deposited on one surface of the dielectric layer, a center conductor provided on a surface of the dielectric layer opposite the ground layer, and a side... Agent: Sughrue Mion, Pllc

20080084256 - Reflection-type banpass filter: Provided is a reflection-type bandpass filter for ultra-wideband wireless data communication. The filter includes a substrate including a dielectric layer and a conducting layer layered on the top and bottom surfaces thereof, and a center conductor provided within the dielectric layer and serving as a strip line. A width distribution... Agent: Sughrue Mion, Pllc

20080084258 - Thermal expansion compensation assemblies: Filter and manifold compensation assemblies for thermal compensation of a filter cavity and a manifold which include at least one a lever element pivotally coupled to the filter or manifold at a first pivot point, an anchoring element pivotally coupled to the lever element at the second pivot point and... Agent: Bereskin And Parr

20080084259 - Electromagnetic wave absorber: A thin, light and soft electromagnetic wave absorber is disclosed exhibiting an excellent workability. The first conductor element group of a first conductor element layer consists of aligned cross conductor elements and square conductor elements in regions surrounded by cross conductor elements. A radio wave incident from the first conductor... Agent: Harness, Dickey & Pierce, P.L.C

20080079511 - Impedance matching circuit and related method thereof: The invention relates to an impedance matching circuit including: an input terminal for receiving an input signal; a variable impedance unit, coupled to the input terminal, having an equivalent impedance for providing the input terminal with an input impedance; a signal quality evaluating unit, coupled to the input terminal, for... Agent: North America Intellectual Property Corporation

20080079512 - Surface acoustic wave filter and surface acoustic wave resonator: A SAW filter comprises an IDT disposed on a piezo-electric substrate, wherein the IDT includes comb-shaped electrodes having a plurality of interdigital electrodes arranged in a propagation direction of surface acoustic waves and bus bars for connecting these interdigital electrodes, arranged in opposition, and the interdigital electrodes are crossed with... Agent: Oblon, Spivak, Mcclelland Maier & Neustadt, P.C.

20080079514 - Harmonic phase tuning filter for rf switches: According to one exemplary embodiment, a switching module includes a first harmonic phase tuning filter coupled to a first input of an RF switch. The first harmonic phase tuning filter is configured to provide an output impedance that substantially matches an input impedance of the RF switch at approximately a... Agent: Farjami & Farjami LLP

20080079513 - Switching module with harmonic phase tuning filter: According to one exemplary embodiment, a switching module includes a first harmonic phase tuning filter coupled to a first input of an RF switch. The first harmonic phase tuning filter is configured to provide an output impedance that substantially matches an input impedance of the RF switch at approximately a... Agent: Farjami & Farjami LLP

20080079515 - Monolithic thin-film piezoelectric filters: Disclosed are exemplary monolithic acoustically coupled thin film piezoelectric-on-substrate filters that operate in a wide frequency range. The monolithic thin-film-piezoelectric acoustic filters includes a resonant structure that is released from and supported by a substrate that comprises a thin-film piezoelectric layer disposed between a lower electrode and a plurality of... Agent: Law Offices Of Kenneth W. Float

20080079516 - Hbar oscillator and method of manufacture: An oscillator including a high tone bulk acoustic resonator (HBAR), a film bulk acoustic resonator (FBAR) filter and a method of fabrication are described.... Agent: Kathy Manke Avago Technologies Limited

20080079517 - Stacked filter: A stacked filter includes an array of resonant sections, the resonant sections adjacent each other being electromagnetically coupled, a first resonator electromagnetically coupled to the resonant section on one end of the array of the resonant sections, and a second resonator electromagnetically coupled to the resonant section on the other... Agent: Oliff & Berridge, PLC