|
Match
|
Document |
Document Title |
|
|
6933799 |
Method of controlling intermodulation distortion of non-reciprocal device
A non-reciprocal device includes at least one ferrimagnetic member ( 21 or 22 ). By controlling the FMR linewidth ΔH of the ferrimagnetic members ( 21 and 22 ), intermodulation distortion is...
|
|
|
6930564 |
Providing controllable impedance at a reference plane in a circuit
Apparatus for providing a controllable impedance at a reference plane in a circuit comprises a unidirectional transmission line loop having first and second input/output terminals. The first...
|
|
|
6930566 |
Small nonreciprocal circuit element that can be easily wired
A nonreciprocal circuit element of the present invention comprises a first yoke and a second yoke that form a magnetic closed circuit. A plurality of chip capacitors with a first electrode and a...
|
|
|
6917250 |
Method of designing a circulator
A radio frequency (RF) circulator includes a low temperature co-fired ceramic (LTCC) substrate and a ferrite structure disposed in the LTCC substrate. The circulator also includes first, second and...
|
|
|
6914496 |
Center-electrode assembly and manufacturing method therefor, nonreciprocal circuit device and communication apparatus using the same
There are provided a center-electrode assembly and a manufacturing method therefor, in which electrical characteristics are stable and handling is easy, and which is suitable for mass-production,...
|
|
|
6914326 |
Solder ball landpad design to improve laminate performance
A method and apparatus for improving the laminate performance of the solder balls in a BGA package. Specifically, the ball pads on the substrate are configured to increase the shear force necessary...
|
|
|
6914495 |
Surface mountable circulator/isolator and assembly technique
A structure for a passive microwave device capable of low IMD and high power operation, and adapted for automated assembling and placement is disclosed. The device exhibits a high degree of...
|
|
|
6914502 |
Wiring structure for transmission line having grooved conductors
A wiring structure for a transmission line has a ground line ( 2 ) and a signal line ( 1 ). The signal line ( 1 ) is disposed so as to face the ground line ( 2 ) through a dielectric ( 3 ). A...
|
|
|
6906597 |
Non-reciprocal circuit device and resin casing used therefor
A resin casing for use in a non-reciprocal circuit device comprising an assembly of a ferrimagnetic body and a plurality of central conductors enclosing it, and a plurality of elongated flat...
|
|
|
6900704 |
Two-port isolator and communication device
A two-port isolator includes a metal case including an upper metal case and a lower metal case, a permanent magnet, a central electrode assembly made of a ferrite and central electrodes, and a...
|
|
|
6895665 |
Method of manufacturing a housing for electronic parts
A method of manufacturing a housing for electronic parts, such as isolators, or the like, with as small non-plated portions as possible, which housing is obtained by separating a housing part from...
|
|
|
6894578 |
Irreversible circuit module including a directional coupler
An irreversible circuit module includes a permanent magnet for providing a DC magnetic field for a magnetic member; an assembly having a magnetic member provided with a plurality of conductors...
|
|
|
6894579 |
Circulators and isolators with variable operating regions
A circulator ( 100 ) is comprised of a transmission line three port Y junction ( 104 ). At least one cylindrical cavity structure ( 113, 115 ) is disposed adjacent to the Y junction and contains a...
|
|
|
6891446 |
Compact broadband balun
A compact broadband balun ( 20 ). The balun ( 20 ) includes a waveguide transition ( 38 ) between one or more input ports ( 34, 54, 56 ) and one or more output ports ( 34, 54, 56 ) of the balun (...
|
|
|
6885257 |
Multi-junction waveguide circulator without internal transitions
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...
|
|
|
6882262 |
Nonreciprocal circuit device and communication device using same
A nonreciprocal circuit device is provided which has an improved reflection characteristic of the port of the center conductor which is disposed parallel with one side of a magnetic body. In this...
|
|
|
6880227 |
Method for manufacturing nonreciprocal circuit device, nonreciprocal circuit device, and communication apparatus incorporating the same
A highly reliable nonreciprocal circuit device can be easily manufactured at low cost. In the nonreciprocal circuit device, a resin layer is formed on the surface of a metal case. On a ferrite...
|
|
|
6876269 |
Nonreciprocal circuit element having excellent signal transmission efficiency and communication apparatus using same
A nonreciprocal circuit element includes a magnetic assembly including a ferrite magnetic body, a common electrode, and three central conductors; capacitors connecting to the respective central...
|
|
|
6876258 |
High-frequency amplifier and radio transmission device with circuit scale and current consumption reduced to achieve high efficiency
A high-frequency amplifier in a power amplifier module includes, on a substrate on which the amplifier is formed, first- and second-stage amplifiers for receiving and amplifying an input signal, a...
|
|
|
6876267 |
Nonreciprocal circuit device
In a nonreciprocal circuit device, receiving surfaces for bending first and second line conductors are formed at the respective ends of the confronting two sides of a magnetic substrate, the first...
|
|
|
6870465 |
Interface controller for magnetic field based power transmission line communication
The present invention relates to magnetic field based power transmission line communication interface controller for subscriber's terminal to receive voice, data and other kinds of electrical...
|
|
|
6861920 |
COMPLEX CIRCUIT BOARD, NONRECIPROCAL CIRCUIT DEVICE, RESONATOR, FILTER, DUPLEXER COMMUNICATIONS DEVICE, CIRCUIT MODULE, COMPLEX CIRCUIT BOARD MANUFACTURING METHOD, AND NONRECIPROCAL CIRCUIT DEVICE MANUFACTURING METHOD
In a complex circuit board, the positional relationships between element portions, including an electrode pattern, a dielectric substrate and a magnetic substrate, can be adjusted as desired, and...
|
|
|
6861922 |
Nonreciprocal circuit device including two series resonant circuits having differing resonant frequencies
Three mutually intersecting central conductors are positioned on ferrite to which a direct current magnetic field is applied, the port portions of two of the central conductors are branched and one...
|
|
|
6861919 |
Irreversible circuit device with small insertion loss and excellent isolation having a Y-shaped ferrite
An irreversible circuit device with small insertion loss and excellent isolation is to be provided. An irreversible circuit device according to the invention has a flat plate shaped ferrite member...
|
|
|
6853263 |
Circulators and isolators with variable ferromagnetic fluid volumes for selectable operating regions
A circulator ( 100 ) is comprised of a transmission line three port Y junction ( 104 ). At least one substantially cylindrical cavity structure ( 113, 115 or 117 ) having a plurality of chambers...
|
|
|
6850751 |
Non-reciprocal circuit device, method of manufacturing, and mobile communication apparatus using the same
A non-reciprocal circuit device has a length, a width, and a thickness denoted respectively by L 1, L 2, and L 3, and the overall dimensions of 2.5 mm<L 1 <7.0 mm, 2.5 mm<L 2 <7.0...
|
|
|
6844789 |
Low temperature co-fired ceramic (LTCC) circulator
A radio frequency (RF) circulator includes a low temperature co-fired ceramic (LTCC) substrate and a ferrite structure disposed in the LTCC substrate. The circulator also includes first, second and...
|
|
|
6844790 |
Non-reciprocal circuit device
A non-reciprocal circuit device comprising a ferrite plate, a magnet disposed opposite to a principal surface of the ferrite plate for applying a DC magnetic field, and a plurality of central...
|
|
|
6833771 |
High efficiency amplifier with amplifier element, radio transmission device therewith and measuring device therefor
A low impedance high efficiency amplifier is connected to a low impedance isolator. The low impedance high efficiency amplifier includes a plurality of amplifiers and an output matching circuit...
|
|
|
6828871 |
Small-loss, large-return-loss nonreciprocal circuit device
A planar magnetic core is disposed in a DC magnetic field, and the top surface thereof is perpendicular to the direction of the DC magnetic field. Three central conductors are placed on the top...
|
|
|
6828870 |
Nonreciprocal circuit device having a casing comprising two members of different thicknesses
A nonreciprocal circuit device includes a permanent magnet, a ferrite element to which a DC magnetic flux is applied by said permanent magnet, a plurality of center electrodes provided on the...
|
|
|
6828872 |
Irreversible circuit device suppressing drop of insertion loss and achieving compact scale
A yoke main body formed of an upper yoke and a lower yoke accommodates therein a magnetic substrate, a plurality of line conductors, a plurality of capacitor substrates, a magnetic member and a...
|
|
|
6822525 |
Circulators and isolators with selectable operating regions
A circulator ( 100 ) is comprised of a transmission line three port Y junction ( 104 ). At least one substantially cylindrical cavity structure ( 113, 115 or 117 ) is disposed adjacent to the Y...
|
|
|
6822527 |
Isolator for greatly attenuating signal transmitted in reverese direction over wide frequency band
An isolator has a magnetic core of a plate shape placed within a direct current magnetic field and having an upper face perpendicular to the direction of the direct current magnetic field, and...
|
|
|
6822524 |
Compact multi-element cascade circulator
A compact multi-element cascade circulator in which electrical and mechanical performance is enhanced while handling and assembly costs are reduced. The circulator includes a plurality of junctions...
|
|
|
6819198 |
Nonreciprocal circuit device and high-frequency circuit apparatus
A nonreciprocal circuit device includes a first center electrode and a second center electrode intersecting each other, each having one end thereof grounded, a ferrimagnetic body provided in the...
|
|
|
6816025 |
Cross talk compensation circuit
A low cross talk compensation circuit comprising a first signal pair having a first conductor and a second conductor parallel to the first conductor, and a second signal pair having a third...
|
|
|
6816027 |
Three-port nonreciprocal circuit device and communication apparatus
A three-port nonreciprocal circuit device has a structure in which one end of a first center electrode is electrically connected to an input external terminal via an input port, and the other end...
|
|
|
6812810 |
Bridges for microelectromechanical structures
A conductive bridge in a second conductive layer may be utilized to join a pair of spaced apart conductive strips in a first conductive layer. A gap between the first and second strips may be...
|
|
|
6812803 |
Passive transmission line equalization using circuit-board thru-holes
A high-speed router backplane, and method for its fabrication, are disclosed. The backplane uses differential signaling trace pairs on multiple high-speed signaling layers, the high-speed signaling...
|
|
|
6809608 |
Transmission line structure with an air dielectric
The dielectric constant and loss tangent of a transmission structure is lowered by sandwiching a conductor between two dielectric structures one or both of which have a series of openings. The...
|
|
|
6803518 |
High frequency transmission cable
A high frequency transmission cable includes one or more propagation channel sets, an inner covering wrapping the propagation channel sets and providing an effect of shield, drain wires and a...
|
|
|
6798311 |
Nonreciprocal circuit device with a solenoid-shaped inductor generating perpendicular flux
To provide a nonreciprocal circuit device which is compact and capable of obtaining a large attenuation in a specified frequency band without increasing the cost, and provided with at least a...
|
|
|
6791028 |
Non-reversible circuit device having laminated substrate capable of being reduced in size
A non-reversible circuit device includes input-output terminals formed on one end side of first, second, and third central conductors, respectively. The other ends thereof are introduced to one...
|
|
|
6780344 |
Garnet ferrite for low-insertion-loss non-reciprocal circuit, method for preparing the same, and non-reciprocal circuit device including the same
A garnet ferrite used for a non-reciprocal circuit device contains Fe in an amount lower than the value derived from stoichiometry by 0.5% to 5%, and more preferably by 1% to 3%. The garnet ferrite...
|
|
|
6778036 |
High-frequency circuit device having isolator ports each having two terminals
A high-frequency circuit device includes a distribution circuit ( 16 ) for distributing a signal inputted from a signal input terminal ( 20 ) to a plurality of first lines ( 16 b ) through a branch...
|
|
|
6774741 |
Non-uniform transmission line and method of fabricating the same
A non-uniform transmission line includes at least one patterned conductive layer, a dielectric layer adjacent to the patterned conductive layer(s), and an insulating layer surrounding the patterned...
|
|
|
6771140 |
High-frequency magnetic ceramic and high-frequency circuit component
A high-frequency magnetic ceramic comprises garnet ferrite represented by the formula A Z B 8-Z O 12 wherein the site A comprises yttrium and the site B comprises iron, where Z is in the range of...
|
|
|
6768392 |
Nonreciprocal circuit device and communication apparatus incorporating the same
A nonreciprocal circuit device including a metal case through which a high frequency current is difficult to flow, and a communication apparatus incorporating the nonreciprocal circuit device. The...
|
|
|
6765453 |
Non-reciprocal circuit device having a thermal conductor
A compact non-reciprocal circuit device capable of handling a high power without impairment of the characteristics. The non-reciprocal circuit device contains a magnetic substrate that exhibits...
|