Wave transmission lines and networks inventions 08/08

20080204172 - Termination circuit, vehicle-mounted control apparatus, and vehicle-mounted communication system: The termination circuit for use in a transmission line to transmit a differential signal includes a first series circuit of a resistive element and an inductive element connected between one of two signal wires of the transmission line and a reference potential, and a second series circuit of a resistive... Agent: Nixon & Vanderhye, PC

20080204162 - Microstripline type directional coupler and communication device using the same: A directional coupler having a grounding electrode on one surface of a substrate, a coupling line portion on a second surface of the substrate, and a main line disposed so as to be coupled at high frequencies to the coupling line portion. The grounding electrode includes a notch portion opposite... Agent: Dickstein Shapiro LLP

20080204163 - Multi-band circuit: A multiband circuit includes a signal path comprising a first signal branch that includes a first circuit that is transmissive in a first frequency band and a second signal branch that includes a second circuit that is transmissive in a second frequency band. The first and second signal branches are... Agent: Fish & Richardson PC

20080204164 - Negative-refraction metamaterials using continuous metallic grids over ground for controlling and guiding electromagnetic radiation: For the cost effective implementation of negative-index refraction, an anisotropic hyperbolic planar metamaterial comprising a first set of substantially parallel, unloaded and coplanar transmission lines, said first set being spaced with a periodicity dy a second set of substantially parallel, unloaded and coplanar transmission lines, said second set being spaced... Agent: Marshall, Gerstein & Borun LLP

20080204165 - Delay filter module: A delay filter module comprising at least one dielectric monoblock ceramic bandpass filter and a circuit for compensating/equalizing the signal delay produced by the delay filter. In one embodiment, the circuit is defined by a hybrid coupler defining at least two ports coupled to a dielectric ceramic reactive termination block... Agent: Daniel J. Deneufbourg Cts Corporation

20080204166 - Dual bandstop filter with enhanced upper passband response: A dual bandstop filter affects frequencies in a lower passband, first and second stopbands separated by a middle passband, and an upper passband. The filter includes two legs. In one version, one leg is a highpass filter while the other leg is a bandstop filter outputting into a lowpass filter.... Agent: Pastel Law Firm

20080204167 - Method for manufacturing surface acoustic wave device and surface acoustic wave device: A method for manufacturing a surface acoustic wave device includes the steps of forming an IDT electrode, a first wiring pattern, and a third wiring pattern on a piezoelectric substrate, forming an insulating film covering the IDT electrode and the wiring patterns, forming a photosensitive resin film, obtaining the photosensitive... Agent: Murata Manufacturing Company, Ltd. C/o Keating & Bennett, LLP

20080204168 - Variable resonator, tunable filter, and electric circuit device: A variable resonator that comprises a loop line (902) to which two or more switches (903) are connected and N variable reactance means (102) (N≧3), in which switches (903) are severally connected to different positions on the loop line (902), the other ends of the switches are severally connected to... Agent: Oblon, Spivak, Mcclelland Maier & Neustadt, P.C.

20080204169 - Variable resonator, tunable bandwidth filter, and electric circuit device: A variable resonator that comprises a loop line (902) to which two or more switches (903) are connected and N of reactance circuits (102) (N≧3), in which switches (903) are severally connected to different positions on the loop line (902), the other ends of the switches are severally connected to... Agent: Oblon, Spivak, Mcclelland Maier & Neustadt, P.C.

20080204170 - Tunable artificial dielectrics: Tuning devices and methods are disclosed. One of the devices comprises a metal structure connected with artificial dielectric elements, and variable capacitance devices. Each variable capacitance device is connected with a respective artificial dielectric element and with a control signal. Control of the variation of the capacitance allows the desired... Agent: Ladas & Parry

20080204171 - Methods and apparatus for programmable active inductance: Methods and apparatus are provided for programmable active inductance. The disclosed active inductor devices provide a tunable bandwidth with improved linearity. The disclosed active inductors have a variable frequency response corresponding to a variable inductance of the active inductor. The active inductor comprises a variable resistive circuit having an effective... Agent: Ryan, Mason & Lewis, LLP

20080204173 - Composite mechanical transducers and approaches therefor: Mechanical transducers such as pressure sensors, resonators or other frequency-reference devices are implemented under conditions characterized by different temperatures. According to an example embodiment of the present invention, a combination of materials is implemented for mechanical transducer applications to mitigate temperature-related changes at or near a selected turnover temperature. In... Agent: Crawford Maunu PLLC

20080197936 - Reconfigurable phase-shifter: P

20080197937 - High directivity ultra-compact coupler: A coupler includes a substrate and a stack of first and second dielectric layers extending over a top surface of the substrate. The first dielectric layer comprises different dielectric material than the second dielectric layer. Two conductive lines extend over the stack of first and second dielectric layers, and are... Agent: Townsend And Townsend And Crew, LLP

20080197938 - System including a high directivity ultra-compact coupler: A system with an RFin terminal and an RFout terminal includes an output matching network. The system further includes a coupler having a thru arm connected between the output matching network and the RFout terminal, and a coupled arm connected to a detector circuit. The coupler further includes a stack... Agent: Townsend And Townsend And Crew, LLP

20080197939 - Passive microwave (de)multiplexer: The present invention relates to a microwave filter bank intended to be used either as or a multiplexer or de-multiplexer in a UWB-type system, said microwave filter bank including a plurality of filters and an interconnection network both connecting a first port (Pifb) of said microwave filter bank to other... Agent: Oblon, Spivak, Mcclelland Maier & Neustadt, P.C.

20080197940 - Method of making an orientation-insensitive ultra-wideband coupling capacitor: A method of making an orientation-insensitive ultra-wideband coupling capacitor, including the steps of securing an unterminated multi-layer capacitor of a low frequency portion of the orientation-insensitive ultra-wideband coupling capacitor, coating completely the unterminated multi-layer capacitor of the low frequency portion with an adhesion layer having opposing ends, creating a circumferential... Agent: Mintz Levin Cohn Ferris Glovsky & Popeo Attn: Patent Intake Customer No. 35437

20080197941 - Ladder type piezoelectric filter: In a ladder-type piezoelectric filter, attenuation in stop bands on a low frequency side and a high frequency side are increased while a pass band is widened. The ladder-type piezoelectric filter is made up by alternately connecting parallel arms and series arms. The parallel arms are respectively made up by... Agent: Burr & Brown

20080197942 - Radio frequency filter: A radio filter has a band pass filter for passing a desired band of signal frequencies and a band stop filter for reducing the passing of a band of undesired signal frequencies. The filter comprises an input terminal, an output terminal, and a filter having a multiple of transmission lines... Agent: Heslin Rothenberg Farley & Mesiti PC

20080197943 - Cancellation of anti-resonance in resonators: Briefly, in accordance with one embodiment of the invention, a resonator such as an electromechanical resonator may be coupled with a cancellation network to reduce and/or cancel an anti-resonance effect in the resonator, which may be due to, for example, a static capacitance inherent in the resonator. Cancellation of an... Agent: Schwabe, Williamson & Wyatt, P.C. Pacwest Center, Suite 1900

20080197944 - Waveguide and attenuation pole waveguide bandpass filter: The attenuation pole waveguide bandpass filter arranged at right angle to the longitudinal direction (radio wave propagation direction) is composed only of conductors. The conductor comprises depressions each opening outwardly and having a non-conducting region which continues from the inside of the opening section to the outside, and a window... Agent: Morgan Lewis & Bockius LLP

20080197945 - High frequency coplanar strip transmission line on a lossy substrate: A substrate (12) having two high frequency components (28, 30, 34, 36, 48) positioned on substrates (12) typically used for lower frequency devices. A coplanar strip transmission line (38, 40, 46, 52, 58), providing for transmission of high frequency signals, comprises first, second and third parallel, spaced conductive traces (62,... Agent: Ingrassia Fisher & Lorenz, P.C. (mot)

20080197946 - Three-dimensional microstructures and methods of formation thereof: Provided are three-dimensional microstructures and their methods of formation. The microstructures are formed by a sequential build process and include microstructural elements which are affixed to one another. The microstructures find use, for example, in coaxial transmission lines for electromagnetic energy.... Agent: Jonathan D. Baskin Rohm And Haas Electronic Materials LLC

20080191816 - Content rate control for streaming media servers: The present invention provides a method for content rate selection. The method includes selecting a content rate for play out of at least one frame transmitted from a media server to a media client via a wireless access network. Selection of the content rate is performed based on a statistical... Agent: Williams, Morgan & Amerson

20080191812 - Composite high-frequency component and mobile communication apparatus: A composite high-frequency component includes a diplexer arranged to separate/combine transmission/reception signals in frequency bands of a plurality of communication systems, transmit/receive switches, filters, and a balanced-unbalanced reception signal switch, and a matching circuit. The balanced-unbalanced reception signal switch includes a reception signal switch and balanced-unbalanced filters. A stripline in... Agent: Murata Manufacturing Company, Ltd. C/o Keating & Bennett, LLP

20080191813 - Rf selection switch for multiple antenna input: RF switches are known from the art for selecting an RF signal from a multiple of inputs. For instance a TV-tuner and TV-Front-end can have two or more antenna inputs but are implemented with a relative bad cost performance. The present invention relates to an RF selection switch circuit (200).... Agent: Nxp, B.v. Nxp Intellectual Property Department

20080191814 - Microstrip coupler: A microstrip coupler is provided for optimizing directivity by improving alignment of even and odd mode phase components. In one form, the microstrip coupler comprises a linear main line with a coupling line adjacent the main line. The coupling line has a non-linear configuration along a side facing the linear... Agent: Motorola, Inc.

20080191815 - Filter element: A filter element includes a coil part formed in an overall tubular shape by layering a pair of signal transmitting belt-shaped conductors and a grounding belt-shaped conductor with a belt-shaped insulator in between and winding so that the grounding belt-shaped conductor is outside a pair of signal transmitting belt-shaped conductors,... Agent: Greenblum & Bernstein, P.L.C

20080191817 - Three-dimensional microstructures and methods of formation thereof: Provided are three-dimensional microstructures and their methods of formation. The microstructures are formed by a sequential build process and include microstructural elements which are mechanically locked to one another. The microstructures find use, for example, in coaxial transmission lines for electromagnetic energy.... Agent: Jonathan D. Baskin Rohm And Haas Electronic Materials Llc

20080191818 - High-speed interconnects: In one example embodiment, a high-speed transponder includes a printed circuit board having a set of coplanar high-speed traces, and a high-speed circuit and a package mounted to the printed circuit board. The package includes an outside housing and a second high-speed circuit positioned inside the housing. The high-speed transponder... Agent: Workman Nydegger

20080186105 - Circuit for matching the load impedance of an electronic device: A circuit matches the load impedance of an electronic device. The circuit comprises an impedance network, a control circuit suitable for varying the impedance of said network and a sensor coupled with said network and said load and suitable for detecting the ratio between the incident and reflected standing waves... Agent: Seed Intellectual Property Law Group PLLC

20080186110 - Broadcast signal waveguide: A waveguide for use in apparatus for receiving transmitted data signals is provided. The waveguide includes first, second and third channels with the received data entering the first channel and components of the received data, signals being selectively deflected from the first channel into the second or third channels. The... Agent: Nixon Peabody LLP - Patent Group

20080186106 - Electrical multiband component: An electrical multiband component includes at least three signal paths, each for the transmitting signals in a corresponding frequency band. A frequency-separating filter includes an input side and an output side. The input side is electrically connected to an antenna path and the output side is electrically connected to the... Agent: Fish & Richardson PC

20080186107 - Cellular antenna: An antenna for communicating with mobile devices in a land-based cellular communication system via an antenna beam having a width, azimuth angle and downtilt angle. The antenna includes: a two dimensional array of radiating elements (31-34); and a feed network (35-39) from a feed line to the radiating elements. The... Agent: Welsh & Katz, Ltd

20080186108 - Bit phase shifter: A bit phase shifter includes a plurality of phase shifters having phase shift amounts and connected in series through connection paths; and a first adjusting circuit provided in the connection path between every adjacent two of the plurality of phase shifters. The first adjusting circuit includes a first inductance which... Agent: Young & Thompson

20080186109 - Low frequency process-variation-insensitive termperature-stable micromechanical resonators: Disclosed are micromechanical resonators having features that compensate for process variations and provide improved inherent temperature stability. Exemplary resonators may comprise comb drive resonators or parallel-plate drive resonators. The resonators comprise a (silicon-on-insulator) substrate with resonator apparatus formed therein. The resonator apparatus has one or more anchors connected to the... Agent: Law Office Of Kenneth W. Float

20080186111 - Systems and methods for blocking microwave propagation in parallel plate structures: Systems and methods are taught for blocking the propagation of electromagnetic waves in parallel-plate waveguide (PPW) structures. Periodic arrays of resonant vias are used to create broadband high frequency stop bands in the PPW, while permitting DC and low frequency waves to propagate. Some embodiments of resonant via arrays are... Agent: Brinks Hofer Gilson & Lione

20080186112 - Package structure for a high-frequency electronic component: A package structure having a recessed portion for accommodating an electronic component for inputting and outputting high-frequency signals such as a semiconductor device while preventing unwanted resonance and increases in loss of the high-frequency signals. Transmission lines for inputting and outputting high-frequency signals to and from the electronic component are... Agent: Mattingly, Stanger, Malur & Brundidge, P.C.

20080186113 - Circular to rectangular waveguide converter including a bend section and mode suppressor: A compact circular waveguide system can connect circular waveguides through a bend while avoiding excessive interaction between the orthogonal modes of the circular waveguides. A compact bend system with circular waveguide input and output can be achieved by providing short quarter wave transformers. The quarter wave transformers can be positioned... Agent: King & Spalding LLP