Wave transmission lines and networks inventions 01/07

20070018748 - Low pass filter and electronic device: The electronic device (100) of the invention comprises a semiconductor device (30) and a low-pass filter (20), which are present in a stacked configuration, and which together include a phase locked loop. The low-pass filter is preferably embodied by vertical trench capacitors, and preferably comprises a drift compensation part. The... Agent: Philips Intellectual Property & Standards

20070018749 - Printed circuit board and differential signaling structure: Provided is a system adopting a differential signaling system including a low frequency signaling line arranged to be adjacent to a pair of differential signaling lines in parallel to each other, for transmitting a signal having a frequency which is smaller than a frequency of a signal to be transmitted... Agent: Fitzpatrick Cella Harper & Scinto

20070018750 - Variable matching circuit, variable resonance circuit, variable phase-shifting circuit and variable attenuation circuit each having variable-capacitance capacitor: In a variable matching circuit including an impedance device and a variable-capacitance capacitor, the variable-capacitance capacitor is formed in a manner that a plurality of variable-capacitance devices using thin film dielectric layers whose dielectric constants change depending on applied voltages are connected to each other in parallel regarding a direct... Agent: Hogan & Hartson L.L.P.

20070018751 - Method for impedance matching between differential vias and transmission lines: A method for impedance matching between differential vias and associated transmission lines is provided. The method includes: deducing a relationship of a space between the differential vias, and a radius of the differential vias while a characteristic impedance of the differential vias matches a characteristic impedance of the differential transmission... Agent: PCe Industry, Inc. Att. Cheng-ju Chiang Jeffrey T. Knapp

20070018752 - Optimization of through plane transitions: A substrate includes a first metal layer containing a first trace, a second metal layer containing a second trace and a dielectric layer arranged between the first and second metal layers. The substrate also includes an electrically conductive signal via electrically coupled to the first and second traces traversing the... Agent: Marger Johnson & Mccollom, P.C.

20070018753 - Antenna switch module: An antenna switch module between several radio-frequency transmit and/or receive paths including, between a common terminal on the antenna side and an access capacitor specific to each path, at least one diode, the number of diodes directly connected to the common terminal being odd and the number of diodes having... Agent: Stmicroelectronics Inc. C/o Wolf, Greenfield & Sacks, PC

20070018754 - High frequency electronic component: A high frequency electronic component comprises a layered substrate. On the bottom surface of the layered substrate, there are provided a plurality of functional terminals for inputting and outputting signals relating to functions of a circuit inside the layered substrate, a plurality of ground terminals, a plurality of terminals that... Agent: Oliff & Berridge, PLC

20070018755 - Acoustic wave transducer with transverse mode suppression: The invention relates to a transducer that works with surface acoustic waves in which interfering transversal modes are suppressed. This is accomplished by mutually adapting to one another the transversal excitation profile of the acoustic wave and the transversal basic mode of the waveguide formed by the acoustic spur and... Agent: Fish & Richardson PC

20070018756 - Elastic surface wavedevice: A surface acoustic wave device includes a substrate, a plurality of terminals including at least an unbalanced terminal and balanced terminals, and at least one of surface acoustic wave element disposed between the unbalanced terminal and the two balanced terminals. Different signal lines connected to the same surface acoustic wave... Agent: Murata Manufacturing Company, Ltd. C/o Keating & Bennett, LLP

20070018757 - Systems and methods for blocking microwave propagation in parallel plate structures utilizing cluster vias: 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. Particular embodiments include clusters of small vias... Agent: Heller Ehrman LLP

20070018758 - Matching circuit: A matching circuit including a main matching block 51 inserted in a signal path and a series matching block 522, one end of which is connected to the main matching block 51, in which one end of a series connection of a switch 542 and a parallel matching block 532... Agent: C. Irvin Mcclelland Oblon, Spivak, Mcclelland, Maier & Neustadt, P.C.

20070013457 - Mode transducer structure: A mode transducer for converting an electromagnetic wave between TE1,0 and TM0,1 modes. A rectangular waveguide guides the wave while in TE1,0 mode and a circular waveguide guides the wave while in TM0,1 mode. The rectangular waveguide and the circular waveguide are joined by a chamber to form a right... Agent: Intellectual Property Law Offices

20070013458 - Filter device, multiband filter, duplexer and communications equipment using the filter device: A filter device includes a circuit board having a pattern electrode; a substrate having a filter to which a signal line for inputting or outputting a signal and a reference potential line having a reference potential are connected, and a pad electrode connected to the filter, the substrate being mounted... Agent: Bacon & Thomas, PLLC

20070013459 - Surface acoustic wave device: A surface acoustic wave branching filter includes a first filter and a second filter each including a plurality of surface acoustic wave resonators arranged in a ladder circuit configuration. The first filter in which the frequency range of the passband is relatively low is provided on a first piezoelectric substrate,... Agent: Murata Manufacturing Company, Ltd. C/o Keating & Bennett, LLP

20070013460 - 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

20070013461 - Casing for catv filter: A filter for CATV applications includes a housing and two interface caps, each with an annular groove in a header portion thereof. A circuit board having a grounding bus along an edge of the board is disposed inside the housing. A split ring grounding clamp is disposed inside the housing... Agent: Pastel Law Firm Christopher R. Pastel

20070013462 - Dual-band bandpass filter: A dual-band bandpass filter for integrating two bandpass filters of two frequency bands includes a first filter unit and a second filter unit. The first filter unit is used to pass a signal of a first frequency band and the second filter unit is used to pass a signal of... Agent: Birch Stewart Kolasch & Birch

20070013463 - Film bulk acoustic wave resonator and manufacturing method thereof: A film bulk acoustic resonator includes a substrate; a lower electrode formed on top of the substrate; a piezoelectric membrane formed on top of the lower electrode and having a crystallographic axis so inclined as to generate a total reflection when an acoustic wave advances toward the lower electrode; and... Agent: Sughrue Mion, PLLC

20070013464 - In-plane mechanically coupled microelectromechanical tuning fork resonators: There are many inventions described and illustrated herein, as well as many aspects and embodiments of those inventions. In one aspect, the present invention is directed to a resonator architecture including a plurality of in-plane vibration microelectromechanical resonators (for example, 2 or 4 resonators) that are mechanically coupled to provide,... Agent: Neil A. Steinberg Suite 1150

20070013465 - Resonator, filter, and communication unit: A resonator, a filter, and a communication apparatus that can be easily miniaturized even if the resonant frequency is relatively low are provided. Conductor layers are laminated in the state in which they are partially insulated from each other by a dielectric layer. Conductor openings free from any conductor layer... Agent: Dickstein Shapiro LLP

20070013466 - Ferroelectric varactors suitable for capacitive shunt switching: An embodiment of the present invention provides an apparatus, comprising a radio frequency switch capable of using tunable dielectric capacitors as the switching element for a plurality of cross connected ports. Further, the RF switching may be accomplished by creating an RF short at a tee within said apparatus by... Agent: James S. Finn C/o Bill Tucker

20070008048 - Simple time domain pulse generator: A pulse generating circuit and related method, for producing extremely narrow pulses for use in monolithic microwave integrated circuits (MMICs) for radar, high-speed sampling, pulse radio and other applications. A sinusoidal input signal is supplied to two nonlinear shock wave generators, which are oppositely biased to produce periodic outputs that... Agent: Tarolli, Sundheim, Covell & Tummino L.L.P.

20070008049 - Clearance hole size adjustment for impedance control in multilayer electronic packaging and printed circuit boards: The present invention provides a technique for adjusting the size of clearance holes for impedance control in multilayer electronic packaging and printed circuit boards. The method comprises: providing parameters for a structure having a clearance hole and at least one via passing through the clearance hole; calculating a characteristic impedance... Agent: Hoffman, Warnick & D'alessandro LLC

20070008050 - Bulk acoustic resonator including a resonance part with dimple and fabrication method therefor: A bulk acoustic resonance and a method for fabricating the bulk acoustic resonator, the bulk acoustic resonator including: a substrate including an upper surface defining a predetermined area including a cavity; a resonance part positioned above the cavity and including a surface comprising a dimple; and an anchor part connecting... Agent: Sughrue Mion, PLLC

20070008051 - Electronic component and manufacturing method thereof: There is provided an electronic component excellent in moisture resistance capable of ensuring electrical connection between electrodes and hermeticity of a sealed region including a vibrating part and suppressing an increase in size. An electronic component including a piezoelectric element provided with a vibrating part and a first electrode on... Agent: Jordan And Hamburg LLP

20070008052 - Surface acoustic wave apparatus: A surface acoustic wave apparatus has a configuration by which the spurious of the higher-order transverse modes is suppressed and a SAW excitation intensity distribution is not changed in the propagation direction. The surface acoustic wave apparatus has at least one interdigital transducer, which is disposed such that a plurality... Agent: Arent Fox PLLC

20070001777 - Normal mode noise suppressing circuit: A normal mode noise suppressing circuit comprises: a noise suppressing section (10) provided on conductor lines (3, 4); and a capacitor (31) having an end connected to the conductor line (3) and the other end connected to the conductor line (4). The noise suppressing section (10) comprises: a winding (15a)... Agent: Oliff & Berridge, PLC

20070001778 - Apparatus and method to facilitate wireless communications of automatic data collection devices in potentially hazardous environments: A system useful in providing communications with automatic data collection (ADC) devices employs an antenna located in a potentially hazardous environment, a radio circuit located in a non-hazardous environment, and a coupling apparatus to provide an interface between the antenna and the radio circuit that prevents electrical discharges from occurring... Agent: Seed Intellectual Property Law Group PLLC

20070001779 - High-frequency balun: In a balun for mutually converting an unbalanced line for unbalanced input/output and a balanced line for balanced input/output, the unbalanced line and the balanced line are microstrip lines including a signal line arranged on one main surface of a substrate and a ground conductor arranged on the other main... Agent: Muirhead And Saturnelli, LLC Suite 1001

20070001780 - Independently adjustable combined harmonic rejection filter and power sampler: An adjustable low pass filter and directional coupler used in microwave communication are combined to reduce the size of the microwave circuit. The low pass filter portion and coupling portion are made independently tunable with a plurality of varactors and variable reactance circuits connected to ground.... Agent: Duane Morris LLP

20070001781 - Piezoelectric resonator, method of manufacturing piezoelectric resonator, and filter, duplexer, and communication device using piezoelectric resonator: A piezoeletric resonator includes: a substrate; a lower electrode formed on or above the substrate; a piezoeletric body formed on or above the lower electrode; an upper electrode formed on or above the piezoeletric body; and a cavity under a vibrating portion formed by the lower electrode, the piezoeletric body,... Agent: Wenderoth, Lind & Ponack, L.L.P.

20070001782 - Noise filter anf noise filter array: A noise filter includes a plurality of LC parallel resonant circuits having a plurality of coils which are connected in series and electrically connected to external electrodes at both ends thereof, and capacitors which are connected in parallel to the coils, respectively, and are disposed inside an insulator while being... Agent: Murata Manufacturing Company, Ltd. C/o Keating & Bennett, LLP

20070001783 - Mems resonator array structure and method of operating and using same: A plurality of mechanically coupled MEMS resonators that are arranged in an N×M MEMS array structure. Each MEMS resonators includes a plurality of straight (or substantially straight) elongated beam sections that are connected by curved/rounded sections. Each elongated beam section is connected to another elongated beam section at a distal... Agent: Neil A. Steinberg

20070001784 - Microresonator, band-pass filter, semiconductor device, and communication apparatus: A microresonator includes a beam-type resonator element in which a beam that is an oscillating portion of the resonator element has a high-resistance portion or an insulating portion.... Agent: Sonnenschein Nath & Rosenthal LLP

20070001785 - Surface acoustic wave device: m

20070001787 - Filter circuit device and radio communication apparatus using the same: A filter circuit device includes a resonator unit configured with six or more resonators, the resonators being divided into a first resonator group including resonators connected in parallel and having odd-numbered resonance frequencies and a second resonator group connected to the first resonator group in parallel and including resonators connected... Agent: C. Irvin Mcclelland Oblon, Spivak, Mcclelland, Maier & Neustadt, P.C.

20070001786 - Multilayer band pass filter: A filter comprises a band pass filter that may have a first resonator, a second resonator and a coupling between the first resonator and the second resonator. The coupling may be controlled by at least one of (i) a spacing between the first resonator and the second resonator, and (ii)... Agent: Squire, Sanders & Dempsey L.L.P. Two Renaissance Squire

20070001788 - Radiating coaxial cable: A radiated mode coaxial cable comprising an outer conductor provided with a periodic aperture array, comprising a plurality (n) of apertures or aperture sets, repeated along the length of said outer conductor whereas a constant spacing s separates the left end of the first aperture of one array and the... Agent: Powell Goldstein LLP

20070001789 - Waveguide cable: According to some embodiments, a waveguide cable includes a dielectric core and a conducting layer surrounding the dielectric core. A first antenna may be provided at a first end of the waveguide cable to receive a digital signal and to propagate an electromagnetic wave through the dielectric core. A second... Agent: Buckley, Maschoff, Talwalkar LLC