Wave transmission lines and networks inventions 05/07

20070120618 - Circuit board with microelectronic elements assembled thereon and method for producing such circuit board: Circuit board (1) and method of producing thereof, the circuit board having a cavity for microstrip to waveguide transition means (2) defined by a hollow space on the walls of which a protection layer (21) is provided. A microelectronic substrate (33) is placed upon an adhesive film (31) adhered onto... Agent: Sughrue Mion, PLLC

20070120619 - Rf switch: An SPNT switch has at least two operating states and comprises N circuit branches. Each circuit branch comprises a first input/output port connected to a second input/output port via a series active device, and a phase shifting component connected in series with a shunt active device. When the shunt active... Agent: Oliff & Berridge, PLC

20070120620 - Tunable surface mount ceramic coupler: A coupler is provided that includes a floating, exposed ground plane that can be partially removed to alter the coupling coefficient of the coupler's transmission lines. According to one embodiment, the coupler is formed using low temperature co-fired ceramic techniques to provide a small, stable and durable device suitable for... Agent: Bond, Schoeneck & King, PLLC

20070120621 - Vertical inter-digital coupler: The present invention is directed to a coupler structure that includes a first port, a second port, a third port, and a fourth port. L first transmission line layers are disposed in the structure. Each first transmission line layer includes a first transmission line conforming to a predetermined geometric configuration.... Agent: Bond, Schoeneck & King, PLLC

20070120622 - Integrated power combiner/splitter: A combiner/splitter with distributed lines including a first line formed of a first planar winding in a first conductive level and of a second planar winding in a second conductive level; a second line formed of a third planar winding interdigited with the first winding in the first level, and... Agent: Stmicroelectronics Inc. C/o Wolf, Greenfield & Sacks, P.C.

20070120623 - Surface acoustic wave device and communication terminal using the same: A surface acoustic wave device in the present invention is provided with a piezoelectric substrate, a supporting substrate being jointed to the piezoelectric substrate and including a material different in expansion coefficient from the piezoelectric substrate and an interdigital electrode for exciting a surface acoustic wave, the electrode being arranged... Agent: Antonelli, Terry, Stout & Kraus, LLP

20070120625 - Film bulk acoustic resonator (fbar) devices with temperature compensation: The temperature-compensated film bulk acoustic resonator (FBAR) device comprises an FBAR stack that comprises an FBAR characterized by a resonant frequency having a temperature coefficient and a temperature-compensating layer comprising doped silicon dioxide. The FBAR comprises opposed planar electrodes and a piezoelectric element between the electrodes. The piezoelectric element has... Agent: Agilent Technologies Inc.

20070120624 - Ladder-type thin-film bulk acoustic wave filter: A ladder filter comprising a plurality of bulk acoustic wave resonators, the resonators comprising a plurality of series resonators series resonators in series between an input terminal and an output terminal of the filter, and one or more shunt resonators each connected between a junction between two series resonators and... Agent: Philips Electronics North America Corporation Intellectual Property & Standards

20070120626 - Surface acoustic wave element, surface acoustic wave device and communication device including the same: A surface acoustic wave element 1 comprises a piezoelectric substrate 19, IDT electrodes 3, 4, 5 of an odd number not less than three formed along a propagation direction of surface acoustic waves that propagates on the piezoelectric substrate, wherein IDT electrodes 3, 5 of the odd number of IDT... Agent: Hogan & Hartson L.L.P.

20070120627 - Bandpass filter with multiple attenuation poles: A bandpass filter includes a combline bandpass filter including tapped-line input and output terminals, at least three resonators, and a loading capacitor for each resonator. The bandpass filter further includes a plurality of loading inductors, each loading inductor being connected between one of the resonators and its respective loading capacitor;... Agent: Squire Sanders & Dempsey LLP

20070120628 - Dielectric waveguide filter with cross-coupling: Provided is a dielectric waveguide filter. The filter includes: a multi-layered structure of dielectric substrates having first and second ground planes at its top and bottom; first, second, and third waveguide resonators disposed at multiple layers within the multi-layered structure; converters for signal transition between input/output ports and the first... Agent: Blakely Sokoloff Taylor & Zafman

20070120629 - Resonator for magnetic resonance applications: A resonator for magnetic resonance applications has a conductor element that extends from a first conductor end to a second conductor end. During operation of the conductor element at a resonance frequency, a resonance current oscillates from the first conductor end to the second conductor end and back. The conductor... Agent: Schiff Hardin LLP Patent Department

20070115074 - Analog delay chain having more uniformly distributed capacitive loads and analog delay cell for use in chain: A tapped delay chain comprises a plurality of delay cells where each cell has at least two output taps: a primary one for feeding forward a delayed signal to a next cell in the chain, and a secondary output tap for feeding a slightly-differently delayed signal to a multiplier unit... Agent: Macpherson Kwok Chen & Heid LLP

20070115075 - Interconnecting a port of a microwave circuit package and a microwave component mounted in the microwave circuit package: In one aspect, a signal path is described. The signal path has a nominal impedance over a specified bandwidth and interconnects a port of a microwave circuit package and a microwave component mounted in the microwave circuit package. The signal path includes an inductive transition and first and second capacitive... Agent: Avago Technologies, Ltd.

20070115076 - High density three-dimensional rf / microwave switch architecture: RF switching system (100, 200) formed from a structure (102, 202) comprised of dielectric material. The structure can have two or more faces (104, 204), with at least one face located in a plane exclusive of at least a second one of the faces. For example, the structure can define... Agent: Sacco & Associates, Pa

20070115077 - Rectangular-to-circular mode power combiner/divider: A rectangular-to-circular mode combiner/divider is provided. In one aspect of the invention, a power combiner is provided that comprises a plurality of rectangular waveguide ports arranged in an integral arrangement. Each rectangular waveguide port is operative to operate in a rectangular mode. The power combiner is also includes a circular... Agent: Tarolli, Sundheim, Covell & Tummino L.L.P.

20070115078 - Film bulk acoustic-wave resonator and method for manufacturing the same: A film bulk acoustic-wave resonator having, a substrate having a cavity, the substrate being formed of one of semi-insulating material and high-resistivity material, a bottom electrode partially fixed to the substrate, part of the bottom electrode is mechanically suspended above the cavity, a piezoelectric layer disposed on the bottom electrode,... Agent: Oblon, Spivak, Mcclelland, Maier & Neustadt, P.C.

20070115079 - Piezoelectric filter: A piezoelectric filter that includes a first substrate having at least one first piezoelectric resonator disposed on a main surface thereof; a second substrate having at least one second piezoelectric resonator disposed on a main surface thereof. A connection pattern extends around the first piezoelectric resonator and the second piezoelectric... Agent: Dickstein Shapiro LLP

20070115080 - Dielectric resonators with axial gaps and circuits with such dielectric resonators: A dielectric resonator with an air (or other dielectric) gap axially interrupting the body of the resonator and circuits employing such resonators. Preferably, the resonator body is conical or a stepped cylinder. However, the invention also is workable with a straight-sided cylindrical resonator body.... Agent: Tyco Technology Resources

20070115081 - Rf mems switch and method for fabricating the same: An RF MEMS switch and a method for fabricating the same are disclosed, in which the RF MEMS device is down driven at a low voltage using a piezoelectric effect. The RF MEMS switch includes a substrate provided with RF signal lines and a cavity, a cantilever positioned on the... Agent: Sughrue Mion, PLLC

20070109068 - Multi-layer security system and method to prevent unauthorized access to fuel dispenser compartments: The present invention provides enhanced security to internal components in a main access compartment of a fuel dispenser. Both a primary lock on a main panel, that secures the main access compartment, and a hidden second lock, hidden inside a lower compartment of the fuel dispenser, must be bypassed to... Agent: Withrow & Terranova, P.l.l.c.

20070109069 - Microwave energized plasma lamp with solid dielectric waveguide: A plasma lamp including a waveguide body including at least one dielectric material with a dielectric constant greater than approximately 2. The body is coupled to a microwave source which causes the body to resonate in at least one resonant mode. At least one lamp chamber integrated with the body... Agent: Schwegman, Lundberg, Woessner & Kluth, P.A.

20070109070 - Monolithic microwave integrated circuit providing power dividing and power monitoring functionality: A monolithic integrated circuit for performing power dividing and power monitoring functions is disclosed. The monolithic integrated circuit includes a power dividing portion for dividing radio frequency (RF) signal power and a power monitoring portion for monitoring the RF signal power. In one example, the monolithic integrated circuit is a... Agent: Honeywell International Inc.

20070109071 - Self-supported strip line coupler: A coupler assembly has first and second conductors with first and second dielectric supports extending along a coupling section and supporting the first and second conductors at a support section.... Agent: Agilent Technologies Inc.

20070109072 - Coupling element for electromagnetic coupling of at least two conductors of a transmission line: A coupling element is disclosed for electromagnetic coupling of at least two conductors of a transmission line, wherein the coupling element is arranged between a first conductor and a second conductor of the transmission line and has at least one discrete component. The coupling element can have at least one... Agent: Mcgrath, Geissler, Olds & Richardson, PLLC

20070109073 - Filter using piezoelectric resonator: A series piezoelectric resonator 11 is connected in series between an input terminal 15a and an output terminal 15b. A first electrode of a parallel piezoelectric resonator 12a is connected to a connection point between the input terminal 15a and the series piezoelectric resonator 11, and a second electrode of... Agent: Wenderoth, Lind & Ponack L.L.P.

20070109074 - Micro-electro-mechanical-system (mems) resonator and manufacturing method thereof: A micro-electro-mechanical-system resonator, includes: a substrate; a fixed electrode formed on the substrate; and a movable electrode, arranged facing the fixed electrode and driven by an electrostatic attracting force or an electrostatic repulsion force that acts on a gap between the fixed electrode and the movable electrode. An internal surface... Agent: Oliff & Berridge, PLC

20070109075 - Surface acoustic wave filter: A saw filter of the invention has a piezoelectric substrate (11), plural numbers of IDT electrodes (12,13) arranged on a surface of the piezoelectric substrate (11) as well as on a first surface acoustic wave propagation path, reflector electrodes (14,15) arranged at least at both ends of a first electrode... Agent: Wenderoth, Lind & Ponack L.L.P.

20070109076 - Ball grid array filter: A ball grid array ceramic filter including a substrate having a ground layer of conductive material disposed over one of the surfaces thereof and a plurality of strips of conductive material on the other of the substrate surfaces defining resonators adapted to receive and pass RF signals. A plurality of... Agent: Daniel J. Deneufbourg Cts Corporation

20070109077 - Partial suspended open-line resonator for parallel coupled line filters: The present invention disclosed a partial-suspended open-line resonator for parallel-coupled line filter for size shrinking and well resonant response. The partial-suspended open-line resonator comprises one open conductive line, one etched ground structure having a lattice adjacent to the conductive line, wherein the lattice is formed on a ground plane. Furthermore,... Agent: J C Patents, Inc.

20070109078 - Tunable mmic (monolithic microwave integrated circuit) waveguide resonators: A ferroelectric loaded waveguide resonator capable of operation at microwave, millimeter-wave and higher frequencies and suitable for integration into a three-dimensional monolithic microwave integrated circuit (3D MMIC) is disclosed. The resonator includes a resonator cavity, which, in one form of the invention, is formed by two parallel metal layers and... Agent: Tarolli, Sundheim, Covell & Tummino L.L.P.

20070109079 - Constant contact pressure pim interface: An interface that provides minimum changes in contact pressure over a thermal range is disclosed. The interface is a mated joint of given material, typically metallic, joined by a mechanical fastener or fasteners. The fastener(s) create contact pressure at the joint surface wherein the contact pressure variation over a temperature... Agent: Philip T. Virga #105

20070109080 - Constant contact pressure pim interface: An interface that provides minimum changes in contact pressure over a thermal range is disclosed. The interface is a mated joint of given material, typically metallic, joined by a mechanical fastener or fasteners. The fastener(s) create contact pressure at the joint surface wherein the contact pressure variation over a temperature... Agent: Philip T. Virga #105

20070109081 - Rf mems switch and fabrication method thereof: Disclosed are an RF MEMS switch and a fabrication method thereof. According to an embodiment the RF MEMS switch is actuated with a low voltage and a low consumption power by using a piezoelectric capacitor actuated by being converted to mechanical energy from electric energy when an electric field is... Agent: Birch Stewart Kolasch & Birch

20070103250 - Growth of high quality low-loss ferrite materials on wide bandgap semiconductor substrates: A semiconductor device including a ferrite layer, a wideband gap semiconductor material layer, and a buffer layer. The buffer layer comprises an interweaving of MgO and BaM. In addition the buffer layer allows a gradual reduction of the interfacial stress, and mediates the strain between a silicon substrate and a... Agent: Naval Research Laboratory Associate Counsel (patents)

20070103251 - Adjusting a characteristic of a conductive via stub in a circuit board: A circuit board construction which reduces unwanted electrical effects and lower signal quality resulting from the use of vias in relatively thick circuit boards or in circuit boards carrying signals of relatively high frequency. The circuit board includes a through-hole in the circuit board substrate for carrying a conductive via... Agent: James M. Stover Ncr Corporation

20070103252 - Radio-frequency switching circuit and semiconductor device: A common terminal 500 is connected to drains of FETs 101 and 102 via a capacitor 400. FETs 111 to 114 are serially connected, and inserted between a source of the FET 101 and a terminal 501 via a capacitor 401. Similarly, each of: FETs 121 to 124; FETs 131... Agent: Mcdermott Will & Emery LLP

20070103253 - 180 degrees hybrid coupler: A multilayer 180 degree hybrid coupler comprises a cascaded pair of quarter wavelength directional couplers 16a/16b and 18a/18b, one of the connections between the directional couplers being made by direct connection and the other connection being made indirectly via a length of transmission line 22 that introduces a 180 degree... Agent: Oliff & Berridge, PLC

20070103254 - Balanced acoustic wave filter and acoustic wave filter: In an acoustic wave filter, first and second filter elements are connected between an unbalanced terminal and first and second balanced terminals on an acoustic wave substrate. The filter elements are longitudinally-coupled surface wave filters including at least three IDTs. One end of the IDTs is mutually connected and is... Agent: Murata Manufacturing Company, Ltd. C/o Keating & Bennett, LLP

20070103255 - Dielectric filter, dielectric duplexer, and communication apparatus: A dielectric filter with an ultra hetero-axial structure is provided with open end-face electrodes. By increasing the capacitance between each open end-face electrode and an external conductor greater than that generated between the open end-face electrodes adjacent to each other, the inductive coupling between two resonators due to neighboring resonator... Agent: Dickstein Shapiro LLP

20070103257 - High frequency module: A high frequency module reduces the inhibition in magnetic flux generated in an inductor and stray capacitance while simultaneously attaining shorter height and smaller size. The high frequency module includes a passive circuit having an inductor and a capacitor. One component part of the passive circuit is mounted as an... Agent: Knobbe Martens Olson & Bear LLP

20070103256 - Low-pass filter capable of preventing unnecessary electromagnetic coupling: A plurality of conductive patterns constituting first, second, and third inductors are formed in a multi-layer wiring board. A fifth dielectric layer is disposed between second to fourth dielectric layers having the first inductor and a seventh dielectric layer having the second inductor. First and second electrode layers are disposed... Agent: Beyer Weaver LLP

20070103258 - Dielectrically transduced single-ended to differential mems filter: A MEMS filter has an input layer for receiving a signal input, and an output layer for providing a signal output. The MEMS filter also has a first resonator and a second resonator coupled to the first resonator such that movement transduced in the first resonator by the signal input... Agent: Jaeckle Fleischmann & Mugel, LLP

20070103259 - Surface acoustic wave filter: A transversal surface acoustic wave filter includes an input-side interdigital electrode, an output-side interdigital electrode, and a shield electrode, which are provided on a surface wave substrate. The distance between an excitation point of the input-side interdigital electrode, which is closest to the shield electrode, and an intermediate point between... Agent: Murata Manufacturing Company, Ltd. C/o Keating & Bennett, LLP

20070103260 - Low-pass filter: A low-pass filter (100) for reducing harmonic electromagnetic signals includes an input line (120), an output line (140), a transmission line (160), a first coupling line (180), and a second coupling line (190). The input line is used for input of electromagnetic signals. The output line is used for output... Agent: PCe Industry, Inc. Att. Cheng-ju Chiang Jeffrey T. Knapp

20070103261 - Variable resonator: A variable resonator has a dielectric substrate 2, an input/output line 3 formed on the dielectric substrate 2, a first resonator 4 that has one end connected to the input/output line 3 and the other end grounded, and a second resonator that has one end connected to the input/output line... Agent: Oblon, Spivak, Mcclelland, Maier & Neustadt, P.C.

20070096842 - Digitally controlled circulator and radio frequency identification reader having the same: Provided are a digitally controlled circulator and a radio frequency identification (RFID) reader having the circulator. A power splitter is composed of lumped elements and the values of the elements are digitally changed using switching means, in which the transmission loss of a signal is controlled according to whether the... Agent: Blakely Sokoloff Taylor & Zafman

20070096843 - Variable attenuator, high frequency integrated circuit and communication device: The variable attenuator includes two transmission lines placed so as to be opposite to each other with space in between; a ground electrode which is grounded; a resistor which is connected to opposing ends of the two transmission lines as well as to the ground electrode; and a control electrode... Agent: Greenblum & Bernstein, P.L.C

20070096844 - Waveguide for use in dual polarisation probe system: A waveguide for use with a dual polarization waveguide probe system is described which provides an improved frequency response across a desired frequency range (10.7 to 12.75 GHz) and particularly at the band edges. This is achieved by providing a waveguide with a rotator that incorporates a reflector plate in... Agent: Darby & Darby P.C.

20070096845 - High-frequency switching apparatus: A high-frequency switching apparatus is composed of a transfer circuit unit including a plurality of FETs, and a shunt circuit unit including a plurality of FETs, as well. An electromagnetic wave absorption material element is connected to an end of the shunt circuit unit. To a connection point between the... Agent: Stevens, Davis, Miller & Mosher, LLP

20070096846 - Frequency diplexer with an input port and a first and a second output ports: h

20070096847 - Spread-spectrum radio utilizing mems components: A spread-spectrum radio, such as a frequency-hopping spread-spectrum radio or a direct-sequence spread-spectrum radio, includes a transmitter that utilizes microelectromechanical systems (MEMS) based oscillation system to generate a spread-spectrum signal and/or a receiver that utilizes a MEMS-based frequency selection system to receive a spread-spectrum signal. In an embodiment, the MEMS-based... Agent: Avago Technologies, Ltd.

20070096848 - Tunable delay line: A tunable delay line system includes a stripline and a plurality of cross-over lines. The stripline defines a propagation delay characteristic. The plurality of cross-over lines are each spaced from and extend with an orientation that is nonparallel with the stripline. Each of the plurality of cross-over lines is configured... Agent: Hewlett Packard Company

20070096849 - Emi filter: EMI filter 20 includes input terminal Vin, output terminal Vout, resistor component R1 and diodes D1 and D2. Resistor component R1 is composed of polycrystalline resistor component Rp and ring resistor components R11 and R12. Polycrystalline resistor component Rp is connected between input and output terminals Vin and Vout. Ring... Agent: Oblon, Spivak, Mcclelland, Maier & Neustadt, P.C.

20070096850 - Method and apparatus for frequency tuning of a micro-mechanical resonator: A method for modifying the resonance frequency of a micro-mechanical resonator, and resonators on which the method is practiced. A packaged resonator is trimmed by directing electromagnetic energy to the resonator through a transparent portion of the package. The removal of mass (by the energy) affects the resonance frequency of... Agent: Marshall, Gerstein & Borun LLP

20070096851 - Bulk acoustic resonator and filter element: A bulk acoustic resonator has an acoustic reflector portion formed on a substrate and including one or more low acoustic impedance layers and one or more high acoustic impedance layers having a higher acoustic impedance than the low acoustic impedance layer which are disposed in stacked relation and an acoustic... Agent: Mcdermott Will & Emery LLP

20070096852 - Electromagnetic radiation decoupler: An electromagnetic radiation decoupler for decoupling radiation in the wavelength range λmin to λmax. The decoupler has a first conductor layer in contact with a dielectric layer which comprises at least one area of absence and the thickness of the decoupler is less than λmin/4n, where n is the refractive... Agent: Mcdonnell Boehnen Hulbert & Berghoff LLP