Wave transmission lines and networks inventions 05/06

20060109062 - High frequency component: The invention relates to a high frequency component of layered structure, and a method for manufacturing the component. The component comprises at least one dielectric layer parallel to the layers of the layered structure, at least two transmission lines for transmitting electrical signals, at least one capacitor, each of which...

20060109063 - Matching for ring hybrid: A ring hybrid circuit achieves broadband matching in a compact, small footprint configuration which allows all matching structures to be printed on the same surface layer as the ring hybrid. The circuit includes a power dividing ring of circular configuration and having an inner diameter. A plurality of transmission lines...

20060109065 - Monolithic duplexer: A subminiature, high-performance monolithic duplexer is disclosed. The monolithic duplexer includes a substrate, a transmitting-end filter formed in a first area on an upper surface of the substrate, a receiving-end filter formed in a second area on the upper surface of the substrate, a packaging substrate, bonded on an area...

20060109064 - Tunable surface acoustic wave resonators: A tunable SAW resonator circuit is disclosed. The tunable SAW resonator circuit includes a SAW resonator having a Q, a resistor coupled to the SAW resonator to reduce the Q, and a tuning component coupled to the SAW resonator to tune the SAW resonator. A method to tune the SAW...

20060109067 - Circuit board having a pereipheral antenna apparatus with selectable antenna elements and selectable phase shifting: A circuit board for wireless communications includes communication circuitry for modulating and/or demodulating a radio frequency (RF) signal and an antenna apparatus for transmitting and receiving the RF signal, the antenna apparatus having selectable antenna elements located near one or more peripheries of the circuit board and selectable phase shifting....

20060109066 - Two-bit phase shifter: A single-structure, two-bit phase shifter useful for steering the beam of an antenna such as an aeronautical antenna. The phase shifter includes an input line, an output line, a plurality of switched lines such as quarter-wavelength microstrip lines connected directly or indirectly between the input line and the output line,...

20060109068 - Method and device for compensating the temperature of circular resonators: A method and an arrangement for temperature compensation at circular resonators with dual mode utilization, which includes a material with a low coefficient of thermal expansion and for which the tensile or compressive forces are transferred to the resonator wall and produce elastic deformations there. The resonator wall is deformed...

20060109069 - Planarized structure for a reliable metal-to-metal contact micro-relay mems switch: A planarized substrate structure for an electromechanical device comprising a substrate layer; a dielectric layer formed on the substrate layer, the dielectric layer formed with conductor spaces therein, the dielectric layer further including a dielectric top surface; and a conducting layer formed as a set of conductors in the conductor...

20060103483 - Inductor and capacitor formed of build-up vias: An inductor and capacitor implemented with build-up vias. The inductor and capacitor comprise a conductor plane, a dielectric layer, an inductor/capacitor inducing build-up via and a conductor layer. There is a conducting material in the inductor/capacitor inducing build-up via and a fist end thereof is in contact with the conductor...

20060103482 - Reduced size transmission line using capacitive loading: A capacitively loaded multilevel transmission line network for operation at a microwave frequency ƒ is disclosed wherein microstrip conductors are disposed over or under a uniplanar transmission line (UTL), electrically connected thereto at or near opposing ends of the UTL and coupled to portions of the UTL separated therefrom by...

20060103484 - Balun with localized components: A mode-switching transformer with localized components comprising: between a first common-mode access terminal and a first differential-mode access terminal defining a first path, two LC cells, each formed of an inductance interposed on the first path and of a capacitor connecting one end of this inductance to ground; and between...

20060103485 - High frequency module: A high frequency module comprises a switch circuit connected to two antenna terminals and two diplexers connected to the switch circuit. Each of the diplexers incorporates two band-pass filters (BPFs). Each of the diplexers further incorporates a capacitor provided between one of the BPFs and a node of signal paths...

20060103487 - Filter structure and method for the design of a filter: A filter structure consists of a filter including a bulk acoustic wave filter or a thin film resonator filter having an input port and an output port, wherein the input port includes a first pad for receiving an input signal of the BAW filter or the TFR filter and a...

20060103486 - Saw component having an improved temperature coefficient: SAW component with improved temperature coefficient of frequency To reduce losses in a SAW component assembled on a piezoelectric substrate (S), the mass load on the metallization (M) is increased until the propagation velocity of the surface wave comes to rest below the propagation velocity of the fast shear wave....

20060103488 - Duplexer, and laminate-type high-frequency device and communication equipment using the same: A duplexer is composed of a laminate in which dielectric layers and electrode layers are laminated alternately. A first filter for transmitting and a second filter for receiving, having different pass band frequencies, are provided in the laminate. A matching circuit composed of a coupling line, having one end that...

20060103489 - Parallel plate waveguide structure: A method and a system for transforming between one or more point type sources and a line source in a transmission line structure. A transmission line path controller is inserted between a first parallel-plate waveguide section and a second parallel-plate waveguide section. The transmission line path controller comprises a curved...

20060103490 - Stable filter and method for forming the same: A filter comprises a receptacle including a positive terminal pin, a negative terminal pin and a ground terminal pin; a filter box installed at one side of the receptacle; the filter box being installed with electric elements; a filter cover serving to seal theses electric elements within the filter box;...

20060103491 - Microresonator, manufacturing method, and electronic apparatus: The present invention provides a microresonator including a plurality of resonator elements arranged on a plurality of columns on a substrate. The resonator elements each have an input electrode, an output electrode, and a diaphragm that extends in a certain direction, and each pass a signal of a certain frequency....

20060103492 - Thin film bulk acoustic resonator with a mass loaded perimeter: A resonator structure (FBAR) made of electrodes sandwich a piezoelectric material. The intersection of the two conducting electrodes defines the active area of the acoustic resonator. The active area is divided into two concentric areas; a perimeter or frame, and a central region. An annulus is added to one of...

20060103493 - Tunable high-frequency filter arrangement and method for the production thereof: A high-frequency filter arrangement comprising at least one filter consisting of a plurality of high-frequency inter-coupled cavities in which a locally fixed respective dielectric resonator element is disposed and in which a respective dielectric body can be modified, in order to tune the frequency of the filter, in the position...

20060103494 - Electronically tunable comb-ring type rf filter: A voltage-controlled tunable comb-ring type filter which includes a plurality of resonators and wherein the plurality of resonators include a first of at least two combline type resonators, a first of at least one ring type resonator coupled to the first of at least two combline type resonator, a second...

20060097815 - Method and system for memory signal transmission: The present invention sets forth a method and apparatus for transmitting signals. Specifically, the present invention sets forth a method and apparatus for transmitting signals between memory and one or more processors on a printed circuit board....

20060097816 - Twist waveguide and radio device: H plane and E plane of a second rectangular waveguide element are inclined at an angle of 45° with respect to H plane and E plane of a first rectangular waveguide element. A connection element disposed between the first and second rectangular waveguide elements has an inner periphery that surrounds...

20060097817 - Attenuation or termination element having a coaxial structure for high-frequency electromagnetic waves: The invention relates to an attenuation or termination element comprising at least one resistance part which is mounted in an outer conductor and has at least one connection to an inner conductor part. The resistance part is produced from at least two separately produced plate-shaped parts which are desirably provided...

20060097819 - Contact-free element of transition between a waveguide and a microstrip line: The present invention relates to an element of transition between a waveguide and a transition line on a substrate. The element of transition comprises a securing flange on the substrate, the flange being dimensioned so that at least, in the direction microstrip line, the width d of the flange is...

20060097818 - Packaged electronic components for applications at millimetric frequencies: The invention relates to millimetric packaged electronic components for applications at high frequencies greater than 45 GHz. According to the invention, to facilitate the design of a system including MMIC chips working at these frequencies, it is proposed to use packages containing one or more chips, these packages making it...

20060097820 - Printed circuit board built-in type planar balun and method for manufacturing same: A printed circuit board built-in type planar balun which can be easily incorporated in a printed circuit board without increasing the number of layers and lowering the functions thereof is provided. A balanced signal transmission line 1 and an unbalanced signal transmission line 2 are formed on a same plane,...

20060097821 - Microwave variable attenuator: The present invention relates to a microwave variable attenuator variably attenuating while maintaining a matching state. The microwave variable attenuator includes: an input terminal for inputting a microwave signal; an output terminal for outputting a microwave signal; a control voltage supplying unit for supplying a control voltage; an input terminal...

20060097822 - Phase matching using a high thermal expansion waveguide: An apparatuses and methods for phase matching power combined signals are described. A typical apparatus includes at least a waveguide portion in at least a first branch conducting a first electromagnetic signal of a combiner, the waveguide portion having an effective size and a thermal control system effecting a temperature...

20060097823 - Piezoelectric thin-film resonator and method for producing the same: A method for producing a piezoelectric thin-film resonator includes forming a sacrificial layer on a substrate, performing a plasma treatment on the sacrificial layer so that the surface roughness (Ra) of end surface portions of the sacrificial layer is about 5 nm or less, forming a strip-shaped dielectric film so...

20060097824 - Electronic component operated with surface acoustic waves: An apparatus includes a piezoelectric substrate having a signal line with a first electrical port and a second electrical port, and a first partial filter connected in series with a second partial filter. The partial filters are arranged between the electrical ports. The first partial filter includes a first serial...

20060097826 - Dielectric resonator: A dielectric resonator is disclosed. In one embodiment, the resonator includes i) a conductive case having a plurality of walls which together define an inner space, ii) a substrate placed at the bottom of the conductive case, and iii) a cylindrical dielectric resonator unit, mounted centrally on the substrate having...

20060097825 - Dielectric resonator and communication apparatus using the same: A dielectric resonance element resonating in the TE01 δ mode and a protrusion portion disposed in a direction perpendicular to the bottom surface of the dielectric resonance element are integrally molded, and the side face at the outer periphery of the protrusion portion is tilted such that the area on...

20060097827 - Adjustable temperature compensation system for microwave resonators: A device comprises a microwave resonator having at least one cavity having a predefined resonant frequency. The device also comprises a temperature compensation system that is made from a material having a coefficient of thermal expansion that is very low compared to that of the material from which the cavity...

20060097828 - Waveguide coupler: Conventionally, waveguide terminals formed in a plurality of dielectric substrates are joined together by mounting the dielectric substrates on carriers and fastening them to a waveguide adapter with screws. In the present invention, ot reduce cost and improve machinability, a plurality of solders 7 are disposed around the waveguide terminal...

20060091970 - Baluns for multiple band operation: A small size, low cost balun is formed on a substrate, such as gallium arsenide, as an integrated passive device. Multiple baluns are formed on a same substrate, allowing multi-band operation. For example, symmetrical transformers are provided for two different bands of operation, such as for a quad-band GSM application....

20060091971 - Waveguide-to-microstrip transition: The invention provides a dielectric substrate; a ground conductor pattern is formed on one surface of the dielectric substrate and which has a ground conductor pattern omission portion; a strip conductor pattern formed on a surface of the dielectric substrate opposite to the surface having the ground conductor pattern; a...

20060091972 - Distributed matrix switch: The present invention relates to an electrical space switch matrix having m input ports and n output ports, the switch matrix comprising (m.n)/(i.j) switch blocks, each having i input ports and j output ports, where i is less than m and j is less than n; and a plurality of...

20060091973 - Planar microwave line with a directional change: A planar microwave line is provided, having a dielectric substrate and a planar arrangement of a first microstrip conductor and at least one additional microstrip conductor, in which a gap between the first microstrip conductor and the additional microstrip conductor permits an electromagnetic coupling, a first region in which the...

20060091974 - Broadband 180° degree hybrid microwave planar transformer: A hybrid 180° microwave balun device is provided to convert an unbalanced RF signal at the common port into two radio frequency signals with equal amplitude and 180° phase difference at two differential ports. The hybrid device includes a coplanar waveguide connecting to the common port. A power divider separates...

20060091975 - Front-end circuit comprising thin-film resonators: The invention relates to a front-end circuit, suitable for a plurality of mobile wireless systems, for separating different frequency bands. According to the invention, separation of the frequency bands occurs by means of band-pass filters connected in parallel signal paths and executed on the basis of thin-layer resonators, which, as...

20060091977 - Duplexer: A duplexer that includes: a transmission filter and a reception filter that are connected to a common terminal; and a reactance circuit that is connected to at least one of the transmission filter and the reception filter. The reactance circuit includes an insulating substrate, lumped-constant inductors, and at least one...

20060091976 - Surface acoustic wave apparatus: A surface acoustic wave apparatus includes an input terminal, an output terminal, a plurality of acoustically coupled interdigital transducers (IDT), and a phase rotating element (line or inductor) connected in parallel with one or more IDT's. The acoustically coupled IDT's are connected in series between the input and output terminals....

20060091978 - Acoustically coupled thin-film resonators: Acoustically coupled resonators include a first and a second acoustic resonator. Both the first and second acoustic resonators include a first electrode, a layer of piezoelectric material, and a second electrode. The first electrode is adjacent a first surface of the layer of piezoelectric material. The second electrode is adjacent...

20060091980 - Compact tunable filter and method of operation and manufacture therefore: An embodiment of the present invention provides an apparatus, comprising a tunable filter with a plurality of bond wires connecting voltage tunable dielectric capacitors to an RF ground and serving as inductors, wherein inductive coupling between the plurality of bond wires serve as coupling between resonators within the tunable filter....

20060091979 - Dual-band bandpass filter with stepped-impedance resonators: A dual-band bandpass filter with stepped-impedance resonators uses only one circuit to generate dual-band effect. It adopts the principle of stepped-impedance resonator, which contains a connecting section and two coupling sections. The impedance and electrical length of the connecting section and coupling sections conforms to a selected condition to generate...

20060091981 - Method and system for frequency trimming: A method (200) of frequency trimming an electronic device (100) such as a resonator or filter can include the steps of providing (202) an external trimmable portion (10) of a multi-port trim network and selectively removing (204) at least a portion of the external trimmable portion to selectively increase or...

20060091982 - Transmission line: A method of controlling a characteristic impedance of a transmission line, and a transmission line implementing the method. According to a basic version of the invention a distance between longitudinal currents are controlled, thereby controlling a characteristic inductance of the transmission line. This without hindering transversal currents on which a...