Wave transmission lines and networks inventions 06/06

20060139117 - Multi-channel waveguide structure: Slot transmission lines are formed in dielectric substrates. Several of such substrates can be stacked together. When stacked together, the conductive surfaces that form the transmission lines can be terminated in the same plane whereat the conductive surfaces form contact terminals. The co-planar contact terminals can be coupled to contact...

20060139118 - Integrated circulators sharing a continuous circuit: The present invention is directed to a circuit assembly that includes an integrated circulator assembly. The circuit assembly has a first substrate, which contains a continuous circuit trace that includes a circulator component from the circulator assembly and at least one electrical component from the circuit assembly. A second substrate...

20060139119 - Multilayer board switch matrix: A multi-layer cross connect having high isolation between signal channels, the multi-layer cross connect comprising: (a) a multi-layer circuit board having a top and bottom orientation and comprising at least a bottom layer and one or more upper layers; (b) a plurality of microstrip launches along the perimeter of the...

20060139122 - Bulk acoustic wave resonator and manufacturing method thereof, filter using the same, semiconductor integrated circuit device using the same, and high frequency module using the same: A bulk acoustic wave resonator in which the problem of the technology for forming the diaphragm structure is resolved, which is more compact and improved the frequency accuracy, and the manufacturing method thereof, a filter using the same, a semiconductor integrated circuit device using the same, and a high frequency...

20060139121 - Fbar band pass filter, duplexer having the filter and methods for manufacturing the same: A duplexer including an FBAR band pass filter that can be easily embodied in single chip, and a method for manufacturing the same are disclosed. The duplexer of a mobile communication device includes a transmitting band pass filter, formed on an upper portion of a substrate, having at least two...

20060139120 - Piezoelectric resonator filter: The present invention is directed to a piezoelectric resonator filter for allowing a high-frequency signal in a desired frequency band to pass therethrough, including: two or more reactance elements in serial connection between input and output terminals; at least three or more piezoelectric resonators in parallel connection between the input...

20060139123 - Resistive capacitor structure for anti-resonance reduction: A resistive capacitor structure adding series resistance to a decoupling capacitor for improved decoupling of power and ground plane noise signals. The resistive capacitor couples a resistor in series with the capacitor where the resistor provides high resistance without substantially increasing inductance to thereby dampen anti-resonance noise typically generated when...

20060139124 - Circuit assembly with conical inductor: A circuit assembly has a conical inductor disposed in a slot formed in a substrate....

20060139125 - Filter device: In a communication system including a first bandpass filter having a relatively low passband or a second bandpass filter having a relatively high passband, a filter device is used as the first bandpass filter. Series-arm resonators are inserted in a series arm connecting an input terminal and an output terminal....

20060139126 - Surface acoustic wave (saw) resonator saw filter and saw antenna duplexer using the saw resonator: A SAW resonator includes an IDT electrode formed on a piezoelectric substrate and reflector electrodes disposed on both sides of the IDT electrode. The IDT electrode includes first finger-electrodes, second finger-electrodes and strip-line electrodes. The first and the second finger-electrodes do not overlap with each other but are acoustically coupled...

20060139127 - Multimode dielectric resonator device, dielectric filter, composite dielectric filter and communication device: Two TE modes whose electric-field rotating planes have a perpendicular relationship are coupled independently of the coupling between two TM modes whose electric-field directions have the same respective perpendicular relationships. In a multimode dielectric resonator device producing four modes: TM01δ_x mode, TM01δ_y mode, TE01δ_x mode, and TE01δ_y mode, protrusions (Pe1),...

20060139128 - Resonator filter: The invention relates to a tunable resonator filter. In each resonator cavity of the filter there is a movable dielectric tuning element (728; 748) to adjust the resonator's natural frequency. The tuning elements are advantageously arranged to be moved by a common control implemented by a rod (708) joining them...

20060139129 - Waveguide filter: A waveguide filter formed from a substrate (S), which is coated on the upper face with a structured metallic layer (TM) and one or more metallic striplines (ML1, ML2), and a component (FB) fitted to the upper face of the substrate (S) and with one side wall of the waveguide...

20060139130 - Harmonic rejection tuner: The present invention discloses a harmonic rejection tuner system consisting of a radio-frequency (RF) or microwave transmission line having a longitudinal axis, containing at least one harmonic resonator sliding on the central conductor, said harmonic resonator is a pair of shorted-stubs, said shorts are adjustable, making the electromagnetic length of...

20060139131 - Semiconductor device and adjusting method for semiconductor device: An object of the invention is to provide a semiconductor device and an adjusting method for a semiconductor device wherein power source noises and noises radiated as radio waves can be reduced and power source noises inside the semiconductor device can be cut. The open stub OS1 is formed in...

20060132255 - Three-port nonreciprocal circuit device, composite electronic component, and communication apparatus: A center-electrode assembly (13) has a configuration in which center electrodes (21) to (23) are arranged, in an electrically insulated state, at the upper surface of a circular-plate microwave ferrite (20). The center electrode (21) is constituted by a first line conductor (21a) and a second line conductor (21b) which...

20060132256 - Electrical connector test fixture: A test fixture configured to receive an electrical connector is provided that includes a circuit board having a mounting area configured to be joined to an electrical connector. The circuit board has at least two layers. Contacts are provided on the circuit board, and traces extend from the contacts, wherein...

20060132257 - Emi filter and frequency filters having capacitor with inductance cancellation loop: An electromagnetic interference (EMI) filter or frequency filters (e.g. bandpass or band reject filters) in which a capacitor has an inductance cancellation loop. Inductive coupling between capacitors can allow undesired high frequencies to propagate across a filter. This is particularly a concern when the capacitors are oriented in parallel. In...

20060132258 - Method and apparatus for large ratio radio frequency variable inductor and use in radio frequency power matching systems: A radio frequency variable inductor with a high ratio of inductance variation to minimum inductance is provided by combining both conductive elements and ferromagnetic elements in an inductance variation assembly, which is rotatably mounted inside a coil. This variable inductor is combined with fixed capacitors and a variable transformer using...

20060132259 - Microstrip-type balun, broadcast receiving apparatus using the same and method of forming thereof: Disclosed are a microstrip-type BALUN (BALance to UNbalance transformer), broadcast receiving apparatus using the same, and a method for forming the same. The BALUN includes a board and a microstrip line formed on the board for transforming an input unbalanced signal into a balanced signal. Since the microstrip-type BALUN is...

20060132260 - Duplexer: A duplexer includes: a transmission filter and a reception filter that have different band center frequencies from each other; a phase matching circuit that performs phase matching on the transmission filter and the reception filter; and a laminated package that includes a first layer on which the transmission filter, the...

20060132261 - Tm010 mode resonator, oscillator and transceiver: A TM010 mode resonator 2 having circular resonator electrodes 2A and 2B, opposite to each other, formed on the top surface 1A and bottom surface 1B of a dielectric substrate 1, respectively, is formed. Furthermore, in the dielectric substrate 1, a plurality of through holes 3 having no electrode on...

20060132262 - Acoustic resonator performance enhancement using selective metal etch: An acoustic resonator that includes a substrate, a first electrode, a layer of piezoelectric material, and a second electrode. The substrate has a first surface and the first electrode is adjacent the first surface of the substrate. The layer of piezoelectric material is adjacent the first electrode. The second electrode...

20060132263 - Concentric, two stage coarse and fine tuning for ceramic resonators: A resonator assembly is provided. The resonator assembly includes a conductive housing defining a cavity, and a resonator. The resonator is disposed within the cavity and has a longitudinal bore. A first tuning assembly has a longitudinal bore and is movably disposed along the bore of the resonator. A second...

20060132264 - Temperature compensation of resonators using different materials for housing and inner conductor as well as suitable dimensions: The present invention relates to a method for determine values for a set of construction parameters of a cavity resonator (1) comprising a housing (2) having a base (3), a sidewall (4) extending upwardly from the base (3) and an upper cover plate (5), and an inner conductor (6) having...

20060132265 - System and method for test loop timer operation: A system and method for test loop timer operation. A mobile station implementing a test procedure may receive a command to enter a test mode. A timer may be enabled and RLC data blocks may be transmitted. The timer may be disabled when a quantity of the RLC data blocks...

20060125569 - Noise rejection device and cellular phone including the noise rejection device: A device includes: a pillar-shaped core consisting of a first magnetic insulating material that has two quadric prism segments at both ends thereof symmetrically and has a cylindrical segment, which has an external shape smaller than that of the quadric prism segments, coaxially between the two quadric prism segments; a...

20060125570 - Radiation noise suppression circuit for differential transmission line: A radiation noise suppression circuit for a differential transmission line includes a differential transmission line which has plus line signal wiring of a differential signal and minus line signal wiring of the differential signal, and connects a differential driver and a differential receiver; signal GND wiring one end of which...

20060125571 - Radiation noise suppression circuit for differential transmission line: A radiation noise suppression circuit for a differential transmission line includes a differential transmission line which has plus line signal wiring to which a plus line signal of a differential signal is applied, and minus line signal wiring to which a minus line signal of the differential signal is applied,...

20060125572 - Balanced nonlinear transmission line phase shifter: A nonlinear transmission line phase shifter has multiple transmission line sections connected together at nodes in series between input and output terminals. First and second diodes are connected to each node in parallel with each other and with opposite polarity. A bias voltage source is connected to the first diodes...

20060125573 - Novel radio frequency (rf) circuit board topology: An interconnection structure for interconnecting circuitry on a first conductive layer to circuitry on a second conductive layer is provided. The interconnection structure of the present invention comprises a signal conductor via surrounded by a plurality of ground vias. The plurality of ground vias shield the signal conductor via, thus...

20060125574 - Transmission line impedance matching: Transmission line impedance matching for matching an impedance discontinuity on a transmission signal trace with one or more non-transmission traces disposed near the transmission signal trace at a region corresponding to the impedance discontinuity....

20060125575 - Transceiver using low temperature co-fired ceramic method: Provided is a microwave and millimeter wave transceiver package technology that can unify the transceiver composed of an amplifier, a filter and a mixer into a low temperature co-fired ceramic (LTCC) module package by using an LTCC method utilizing a multilayer dielectric substrate, thereby achieving miniaturization, a loss reduction and...

20060125576 - Highly tunable low-impedance capacitive micromechanical resonators, oscillators, and processes relating thereto: Disclosed are capacitive micromechanical resonators optimized for high Q, low motional impedance, and large tuning range. Exemplary resonators were fabricated using a HARPSS-on-SOI process, and demonstrated quality factors up to 119000 in vacuum. For resonators operating between 3 MHz and 30 MHz, the lowest extracted impedance is 218 kΩ and...

20060125577 - Acoustic resonator device and method for manufacturing the same: An acoustic resonator device includes a semiconductor substrate, a FBAR (thin film bulk acoustic resonator) and a support plate. The FBAR is fabricated on the upper surface of the semiconductor substrate. The semiconductor substrate has a resonant cavity through the upper and the lower surfaces thereof. The support plate is...

20060125578 - Bandpass filter: An edge-coupled filter includes a phase velocity compensation transmission line section comprising a series of spaced alternating T-shaped conductor portions....

20060125579 - Frequency filter and its manufacturing process: The invention relates to a frequency filter comprising a structure with, on one face, two extreme evanescent areas and at least one wave guide area between the evanescent areas, characterised in that the at least one wave guide area and the evanescent areas form a single closed cavity, the said...

20060114076 - Element of parallel flat plate line type, a circuit board: An element of parallel flat plate line type suitable for operation at a higher speed and with a higher frequency is provided. The element is characterized by including a first metallic member 1 including a flat plate section 11 and a projected section 12 in which a plurality of projections...

20060114077 - Electronic device and method of manufacturing the same: An electronic device includes: an insulating substrate; at least one capacitor and an inductor that are formed directly on the insulating substrate; a line that connects the capacitor and the inductor from the above; and an external connecting pad unit that is made of the same conductor as the line...

20060114078 - Electronic volume: To reduce errors due to the on-resistance of the switches. The electronic volume includes a first attenuator 2 whose input is connected to a signal input terminal 1, first switch S1 connected between an output of the first attenuator 2 and input of a output buffer 8, second switch S2...

20060114079 - Apparatus for delaying radio frequency signals: In the present technique for transmitting and delaying radio frequency signal transmission, an RF delay filter (102) is provided with at least one high permittivity material coaxial delay element (104) with each having an input port (114) and an output port (116). Multiple coaxial delay elements are operably coupled by...

20060114080 - Stacked bulk acoustic resonator band-pass filter with controllable pass bandwidth: The band-pass filter has a stacked pair of film bulk acoustic resonators (FBARs) and an acoustic decoupler between the FBARs. Each of the FBARs has opposed planar electrodes and a layer of piezoelectric material between the electrodes. The acoustic decoupler controls the coupling of acoustic energy between the FBARs. Specifically,...

20060114081 - Surface acoustic wave element and manufacturing method thereof: A surface acoustic wave (SAW) element including a semiconductor substrate on which a semiconductor wiring region and a SAW region are formed alongside in a same plane, a metal wiring formed in the semiconductor wiring region, an insulating layer including the metal wiring and formed throughout on surfaces of the...

20060114082 - Generalized multiplexing network: The invention relates generally to RF and microwave multiplexers implemented with a plurality of coupled resonators. More specifically, the present invention relates to multiplexers configured to require only a plurality of resonators and series, shunt, cross couplings and input/output couplings between them. It is a main feature of the invention...

20060114083 - Air cavity module for planar type filter operating in millimeter-wave frequency bands: Provided is an air cavity module for a planar type filter operating in millimeter-wave frequency bands. The air cavity module includes: the planar type filter operating in the millimeter frequency bands; an air cavity having open side and top surfaces to mount the planar type filter therein; and an air...