Wave transmission lines and networks inventions 04/06

20060087379 - Method and structure to control common mode impedance in fan-out regions: A method and structure are provided to control common mode impedance in fan-out regions for printed circuit board applications. A differential pair transmission line includes a narrow signal trace portion in the fan-out region and a wider signal trace portion outside of the fan-out region. A dielectric material separates the...

20060087380 - Method for limiting the dynamic range of audio signals, and circuit arrangement for this purpose: A method for limiting the dynamic range of audio signals (S) provides for control of the dynamic range limiting on the basis of the instantaneous frequency of the audio signal (S) which is to be compressed as a control parameter....

20060087381 - High power absorbing waveguide termination for a microwave transmission line: A high power absorbing waveguide termination for a microwave transmission line has a power receiving end with a waveguide input port, an oversize waveguide section, and a transforming waveguide section for connecting the waveguide input port to the oversize waveguide. A dielectric taper disposed in the oversize waveguide section has...

20060087382 - Inductive coupler for power line communications: There is provided an inductive coupler for coupling a data signal to a power line. The inductive coupler includes a split magnetic core having an aperture formed by an upper magnetic core and a lower magnetic core. The aperture permits the power line to pass therethrough as a primary winding,...

20060087383 - Balun with structural enhancements: A balun including a pair of metal coil structures and an intervening dielectric layer having a thickness that is selected in response an operating frequency of the balun. The thickness of the dielectric layer may be used to tune the balun and enhance its self-inductance at its operating frequency. In...

20060087384 - Setting of the impedance ration of a balun: The modification of the impedance ratio of a balun of four conductive windings formed in two metallization planes stacked by being interdigited and electrically in series two by two, by connecting a capacitor in series with the two windings defining the common mode of the balun....

20060087385 - System and method for duplex operation using a hybrid element: A system for duplex transmission and reception utilizing circular polarization wherein a pair of linear polarized orthogonal antennas is coupled to a transmitter through a hybrid coupler and a receiver is coupled to the antennas via the same hybrid coupler by using the port isolated from the transmitter. The hybrid...

20060087386 - Arrangement of lattice filter: A filter and method of manufacturing a filter having a lattice arrangement that efficiently utilizes substrate space. An embodiment of the invention is directed to a filter having a plurality of resonators disposed on a substrate, each resonator comprising a first electrode and a second electrode disposed vertically adjacent such...

20060087387 - Frequency filtering circuit for wireless communication devices: Systems and methods are disclosed for a frequency filtering circuit for wireless communications that includes a first resonator circuit comprising a first transmission line and a first capacitor coupled to the first transmission line and a second resonator circuit in parallel to the first resonator circuit, said second resonator circuit...

20060087388 - Resonator: An object of the present invention is to provide a resonator capable of constituting a variable filter which has a small size, high mass productivity, low loss and high reproducibility of frequency. According to the present invention, a resonator having a line structure formed on a dielectric substrate 2, is...

20060087389 - High-frequency switch circuit device: A high frequency switch circuit device includes: at least one distributed element of at least one transmission line; at least two lumped elements of at least one resistor and at least one capacitor; at least one semiconductor device; at least one input terminal; at least two output terminals; and another...

20060082420 - Non-reciprocal circuit device: A gyromagnetic component 1, a permanent magnet 2 and yokes 31 and 32 are provided. The permanent magnet 2 is provided on at least one surface side of the gyromagnetic component 1, and applies a direct-current magnetic field to the gyromagnetic component 1. The yokes 31 and 32 form a...

20060082421 - Controlling coupling strength in electromagnetic bus coupling: A controller sends signals to an electromagnetic coupler associated with a bus. The signals are arranged to set a coupling strength of the coupler....

20060082422 - Connection structure of high frequency lines and optical transmission module using the connection structure: A connection structure is applied to mutually connect a first and a second transmission line that is planar in shape and that has a ground conductor on a second main surface, such as a microstrip line or a coplanar line with a ground. The first and the second transmission lines...

20060082423 - Integrated bst microwave tunable devices fabricated on soi substrate: A tunable microwave device includes a SOI structure. A buffer layer is formed on the SOI structure. A microwave film layer is formed on the buffer layer. The microwave film layer comprises BST related materials....

20060082424 - Harmonic spurious signal suppression filter: The present invention is to provide a harmonic spurious signal suppression filter, which comprises microstrip lines disposed on a printed circuit board of a wireless network product, wherein one end of a microstrip input end is perpendicularly connected to one end of a first microstrip line, one end of a...

20060082425 - Microstrip type bandpass filter: Provided is a narrowband microstrip type bandpass filter adapted- to a home network, telematics, an intelligent traffic system, and a satellite Internet, the microstrip type bandpass filter comprising: an input terminal for receiving a predetermined signal; an output terminal for outputting a selection signal in a characteristic band; a first...

20060082426 - Microwave filter comprising a coaxial structure: The invention relates to a microwave filter comprising a coaxial structure, consisting of a tubular outer conductor and an inner bar conductor. According to the invention, the inner bar conductor extends in an axial direction inside the outer tube and, together with said tube, forms a series of concentric slots...

20060077017 - Gyromagnetic component for non-reciprocal circuit device and non-reciprocal circuit device: A ferrite substrate 12 and a center electrode 11 are included. At least a part of the ferrite substrate 12 is covered with an insulating film 114. A second central conductor 112 constituting the center electrode 11 is caused to adhere to a surface of an insulating film 12. A...

20060077016 - Lumped element non-reciprocal circuit device: A lumped element non-reciprocal circuit device is downsized without an increase in an insertion loss. A lumped element non-reciprocal circuit device comprises a plurality of center electrodes; a microwave magnetic material; a permanent magnet; and a metal case that serves as a magnetic yoke, wherein the center electrode is disposed...

20060077018 - Filter having parasitic inductance cancellation: An electrical component includes a capacitive impedance and a shunt path inductance cancellation feature provided by coupled windings. A filter having a capacitor with capacitor-path inductance cancellation provides enhanced performance over frequency compared with conventional capacitors....

20060077019 - Method and apparatus for destructible trap/filter: An electrical filter disconnects a connecting pin when uninstalled. A first filter section includes a first set of electrical filter components, while a second filter section includes a second set of electrical filter components, with the connecting pin connecting the two filter sections. An electrical isolation shield disposed between the...

20060077020 - Circuits and manufacturing configurations of compact band-pass filter: A filter circuit that includes a thin film layer supported on a substrate serving as a medium layer for a capacitor formed between a top electrode layer and a bottom electrode layer formed above and below the thin film layer. The top electrode layer is patterned into microstrips for functioning...

20060077021 - Slow-wave structure for ridge waveguide: A ridge waveguide filter having a slow-wave structure. The ridge waveguide has an elongate hollow tube formed of a conductive sidewall. At least a first part of the conductive sidewall periodically is recessed along an elongate direction of the hollow tube, such that a plurality of ridges is formed to...

20060071735 - Input impedance matching circuit for low noise amplifier: An input impedance matching circuit for a low noise amplifier includes a source pad, a gate pad, an input transistor, a source degeneration inductor and a matching capacitor. The gate pad receives an input signal and the input transistor amplifies the input signal transmitted from the gate pad. The source...

20060071736 - Acoustic resonator performance enhancement using alternating frame structure: Disclosed is an acoustic resonator that includes a substrate, a first electrode, a layer of piezoelectric material, a second electrode, and an alternating frame region. The first electrode is adjacent the substrate, and the first electrode has an outer perimeter. The piezoelectric layer is adjacent the first electrode. The second...

20060071737 - Adjustable resonator filter: An adjustable resonator filter (200), the operating band of which can be shifted by a one-time adjustment. The natural frequency of each resonator (210, 220) is affected, in addition to the basic tuning arrangement, by an adjustment circuit (ACI), which includes a fixed tuning element (280) in the resonator cavity...

20060071738 - Balanced filter device: A balanced filter suitable for a reduction of the filter size. The balanced filter comprises strip-line resonators (SL1a, SL1b) constituting resonance electrodes on the unbalanced side, strip-line resonators (SL2a, SL2b) disposed in adjacently opposed relation to the strip-lines on the unbalanced side and constituting resonance electrodes on the balanced side,...

20060071739 - Signal transmission structure: A signal transmission structure including a signal line, a first reference plane with a first opening, and a second reference plane with a second opening is provided. The first reference plane is disposed beside the signal line, and a portion of the signal line passes through a position of the...