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7230507 |
Compact waveguide isolator
An improved waveguide isolator that eliminates the transitions to air-filled waveguides between ferrite elements and absorptive load elements is described. The waveguide isolator in accordance with...
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7230506 |
Crosstalk reduction for a system of differential line pairs
A technique is presented for minimizing crosstalk between adjacent differential signal pairs in communications. A backplane embodiment wherein the backplane includes a plurality of differential...
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7227427 |
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...
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7205865 |
Power divider and combiner in communication system
Disclosed is a high frequency omni-directional 2-way power divider which includes one input terminal and two output terminals so that a signal inputted through the input terminal is uniformly...
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7206116 |
Faraday rotator
A Faraday rotator for a Faraday isolator with an input polarizer, with an output polarizer, with a roller-shaped optical crystal that is arranged therebetween and that is arranged symmetrical to...
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RE39546 |
Jack including crosstalk compensation for printed circuit board
A forward-reverse crosstalk compensation method is provided for compensating capacitance/inductance on a printed circuit board of a connector. The method includes a forward compensation process and...
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7196593 |
Microwave circulator with deformable membrane
A circulator comprises a housing in two halves with a ferrite and associated magnet in a central portion of a first one of the halves, the second housing-half above the ferrite having a membrane...
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7176767 |
Multi-junction waveguide circulator with elements having no discontinuities
An improved multi-junction waveguide circulator that eliminates the transitions to dielectric transformers and air-filled waveguides between ferrite elements is described. The waveguide circulator...
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7170361 |
Method and apparatus of interposing voltage reference traces between signal traces in semiconductor devices
A method and apparatus for substantially reducing or eliminating electromagnetic and electrostatic coupling between signal traces on a substrate is disclosed. A substrate, such as a printed circuit...
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7170362 |
Ferrite circulator having alignment members
A ferrite circulator having integrated alignment members and a method for aligning a ferrite element within a ferrite circulator are provided. The ferrite circulator includes a ferrite circulator...
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7164333 |
Standing wave barrier
A standing wave barrier for at least one radio frequency cable having a cable axis has at least one metallic base web that proceeds parallel to the cable axis from a first web end to a second web...
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7157987 |
Transmission line having a transforming impedance
A transmission line for high-frequency differential signals and having a transforming impedance is formed into a substrate. The transmission line is comprised of a first slot, the opposing surfaces...
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7154954 |
Communication system
A communication system in which a reception signal can be accurately obtained from a signal transmitted over two-wire type transmission lines without any significant reduction in the communication...
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7154354 |
High permeability layered magnetic films to reduce noise in high speed interconnection
A structure for magnetically shielded transmission lines for use with high speed integrated circuits having an improved signal to noise ratio, and a method for forming the same are disclosed. At...
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7154353 |
Microstrip lines in a multi-layered shielded configuration
A plurality of signal lines are provided on one main surface of a dielectric substrate. A plurality of other signal lines are provided on the other main surface of dielectric substrate. The...
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7138883 |
Non-reciprocal circuit element
In a non-reciprocal circuit element, capacitors are disposed on a bottom surface of a dielectric facing a ferrite member in a state in which first electrodes are connected to port portions serving...
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7138937 |
Radar system having low-profile circulator
A circulator comprises first and second couplers. The first and second couplers are coupled by first and second transmission lines. First and second magnetic fields are provided crossing the first...
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7116190 |
Slot transmission line patch connector
A slot transmission line patch connector, capable of bridging one or more slot transmission lines is comprised of an elongated dielectric connector body. The dielectric connector body is formed to...
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7102455 |
Arrangements of differential pairs in multi-layer printed circuit board for eliminating crosstalk
An arrangement of differential pairs in a multi-layer printed circuit board is provided for eliminating crosstalk. The arrangement of differential pairs in the multi-layer printed circuit board...
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7095291 |
Resonant structure and method for lumped element in nonreciprocal device
A structure according to the present invention relates to the non-reciprocal microwave device such as circulator/isolator and includes the circuit, a ferrite member and a dielectric film. The...
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7091798 |
Notch filter system and method
A circulator is used as a notch filter having a notch at a notch frequency band outside its frequency band of operation as a circulator. It has been observed that circulators operate as a notch...
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7078983 |
Low-profile circulator
A circulator comprises first and second couplers. The first and second couplers are coupled by first and second transmission lines. First and second magnetic fields are provided crossing the first...
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7068118 |
Pulse modulator for nonradiative dielectric waveguide, and millimeter wave transmitter/receiver using the same
A pulse modulator includes a circulator which comprises: two ferrite plates; a plurality of mode suppressors for transmitting therethrough an LSM mode electromagnetic wave while shutting off an LSE...
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7057471 |
Non-reciprocal device
The present invention is directed to a non-reciprocal device whose use makes it possible to reduce the insertion loss, and the size and thickness of its body, and broaden the frequency band treated...
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7049900 |
Multi-junction waveguide circulator using a single control wire for multiple ferrite elements
An improved multi-junction waveguide circulator that eliminates the transitions to dielectric transformers and air-filled waveguides between ferrite elements is described. The elimination of the...
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7048992 |
Fabrication of Parascan tunable dielectric chips
A tunable dielectric chip, and method of manufacture therefore, that comprises a dielectric substrate, the dielectric substrate patterned to a critical dimension, a metallized portion integral to...
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7009465 |
Isolator including small matching capacitors, and communication apparatus including the isolator
In an isolator, a common electrode is disposed on a first surface of a magnetic plate. On a second surface of the magnetic plate, first, second, and third center conductors are disposed crossing...
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7005937 |
Circulator and method of manufacture
A method of manufacturing a circulator comprising the steps of providing a central substrate layer with at least one cut-out section and circuit lines. Next, providing a magnet placed within said...
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7005726 |
Semiconductor device with an improved transmission line
A semiconductor device with integrated circuits includes superimposed layers provided at different levels on a substrate, and including a metal strip ( 3 ) formed in a reference layer and through...
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7002426 |
Above resonance isolator/circulator and method of manufacture thereof
An above resonance circulator/isolator and method for manufacturing the same is described. In one implementation, the above resonance circulator/isolator includes a magnet, a spacer, a single...
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6998912 |
High-frequency composite switch module and mobile communication device using the same
A high frequency composite switch module for a mobile communication device, wherein high frequency circuits such as a power amplifier, a circuit functioning as a transmitter/receiver switching...
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6996419 |
Consolidating signals for an antenna system
A communication system that includes an antenna system and a consolidation system is provided. The consolidation system has a first terminal and a second terminal. The second terminal is connected...
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6992540 |
Two-port isolator and communication device
A two-port isolator includes a microwave ferrite member, first and second center electrodes that intersect with each other on the ferrite member with isolation therebetween, a permanent magnet that...
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6989719 |
Non-reciprocal circuit element with reduced shift of center frequency of insertion loss with change in temperature and communication device
A non-reciprocal circuit element includes a magnetic plate, a common electrode, a first main segment, a second main segment, a third main segment, and a magnet opposing to the magnetic plate and...
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6987428 |
Electromagnetic coupler flexible circuit with a curved coupling portion
An electromagnetic (EM) coupler including a first transmission structure having a first geometry, and a second transmission structure having a second geometry and forming an EM coupler with the...
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6987426 |
Nonreciprocal circuit element with input and output characteristic impedances matched
A nonreciprocal circuit element includes a magnetic plate, a common electrode on a first surface of the magnetic plate, and first, second, and third central conductors each including a pair of...
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6985055 |
Transmission line comprised of interconnected parallel line segments
A transmission line, includes: a first input electrode located in a first level; a plurality of parallel stripe-shaped signal lines in the first level, one end of the signal lines connected to the...
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6982608 |
Isolator suitable for miniaturization
An isolator suitable for miniaturization due to a reduction in the size of a capacitor is provided. The isolator includes a flat plate-shaped ferrite member 4 , and first, second, and third...
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6980063 |
Transmission line parasitic element discontinuity cancellation
A discontinuity, such as a via, in a signal transmission line can introduce a parasitic element that affects the signal transmission. The method in accordance with embodiments of the present...
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6977559 |
Nonreciprocal circuit element with notch part in yoke
Provided is a nonreciprocal circuit element which has increased lengths of central conductors to be compatible with miniaturization while exhibiting superior performance. In the nonreciprocal...
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6970053 |
Atomic layer deposition (ALD) high permeability layered magnetic films to reduce noise in high speed interconnection
A structure for magnetically shielded transmission lines for use with high speed integrated circuits having an improved signal to noise ratio, and a method for forming the same are disclosed. At...
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6968609 |
Nonreciprocal circuit device, communication device, and method of manufacturing nonreciprocal circuit device
A nonreciprocal circuit device, in which metal members which form a metal case can be resistance-welded stably and reliably, having high reliability and satisfactory characteristics, a...
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6970679 |
Method of detecting a redirection or relaying of a contactless data transmission using at least two sequentially driven transmitting antennas
A method detects relaying of a contactless data communication by a radio amplifier for intercepting and manipulating the communication to achieve an unauthorized authentication. The method involves...
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6965276 |
Two port type isolator and communication device
A two-port isolator capable of suppressing propagation of the second harmonic wave ( 2 f ) or the third harmonic wave ( 3 f ) of the used frequency f includes a parallel RC circuit, which includes...
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6965277 |
Two-port non-reciprocal circuit device, composite electronic component, and communication apparatus
In a two-port non-reciprocal circuit device, connecting portions of a first central electrode are electrically connected to first and second balanced input terminals, respectively. Likewise,...
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6955553 |
Non-reciprocal device
The present invention is directed to a non-reciprocal device which easily secures the same planarity in the bottom surfaces of the external terminals and the case bottom surface. The case 7 ...
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6943641 |
Small non-reciprocal circuit element with good productivity
A non-reciprocal circuit element includes first, second, and third central conductors, which are formed of thin films or thick films. Each of the first, second, and third central conductors...
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6943642 |
Nonreciprocal circuit element and method of manufacturing the same
A nonreciprocal circuit element includes a magnetic plate having through holes; center conductors crossing each other at a predetermined angle on a side associated with a first surface of the...
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6940360 |
Two-port isolator and method for evaluating it
A two-port isolator comprising a thin ferrite plate, a permanent magnet for applying a static magnetic field to the thin ferrite plate, first and second central conductors disposed substantially in...
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6935002 |
Method of manufacturing a nonreciprocal circuit device
A method of manufacturing a nonreciprocal circuit device is performed such that matching capacitors are formed of single-board-type capacitors including capacitor electrodes formed so as to be...
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