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6208218 |
Nonreciprocal circuit device including dielectric wave guide, dielectric wave guide device and radio device
A dielectric wave guide nonreciprocal circuit device wherein the efficiency of applying a DC magnetic field to ferrite plates is increased, the effect on other components of magnetic field leakage...
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6205138 |
Broadband any point to any point switch matrix
This invention is a broadband matrix switch system and method of operation. The broadband matrix switch has N number of broadband inputs, each of the broadband inputs having one or more broadband...
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6163233 |
Waveguide with signal track cross-over and variable features
A waveguide structure and a method of forming a waveguide structure is disclosed. The waveguide structure includes at least three dielectric layers juxtapositioned together such that two layers are...
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6144267 |
Non-Radiative dielectric line assembly
A normal NRD guide is constituted in the part to be coupled with a dielectric resonator, a hyper NRD guide for simply transmitting the LSM01 mode is constituted in a multipoints circulator part,...
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6141571 |
Magnetically tunable ferrite microwave devices
In a ferrite switchable microwave device, a magnetic structure is formed in a nearly continuous closed-loop configuration of a single crystal material, or of a material exhibiting the magnetic...
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6133805 |
Isolation in multi-layer structures
An apparatus for propagating high frequency energy hag a wavelength of λ in a dielectric medium has first and second signal lines, substantially coplanar with each other, and carrying high...
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6131269 |
Circuit isolation technique for RF and millimeter-wave modules
A circuit module construction and method for its fabrication, in which radio-frequency (RF) or millimeter-wave circuit components (10) are electromagnetically isolated in a circuit module (12), to...
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6130585 |
Cross-over distribution scheme for canceling mutually coupled signals between adjacent stripline signal distribution networks
A stripline cross-over architecture includes a first stripline layer extending on a first side of a dielectric layer between a first signal input port and a plurality of first signal output ports....
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6130587 |
Microstripline/stripline isolator/circulator having a propeller resonator
An isolator/circulator can keep a size of a 3-way asymmetric propeller resonator and intensity of magnetism, control the preferred frequency, and improve the insertion loss and isolation...
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6120884 |
Conductor paste and multilayer ceramic part using the same
An object is to provide a conductor paste of quality which uses a silver base internal conductor, suppresses the generation of voids and the concomitant occurrence of cracks even when co-fired with...
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6121851 |
Non-reciprocal circuit element
A non-reciprocal circuit element for transmitting a high-frequency signal of microwave band in one direction. The electrical characteristics of the non-reciprocal circuit element have been improved...
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6118352 |
Microwave component comprising gyromagnetic material exposed to adjustable magnetic field strength
A description is given of a microwave component which includes a microwave conductor arrangement for conducting electromagnetic waves and a gyromagnetic material which is provided in operative...
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6111237 |
Microwave facilitated atmospheric energy projection system
The present invention relates to an Atmospheric Energy Projection System for projecting electrical and thermal energy. The Microwave Facilitated Atmospheric Energy Projection System (MFAEPS) uses...
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6111205 |
Via pad geometry supporting uniform transmission line structures
A connector for coupling high frequency signals between devices includes a substrate having an array of vias for coupling a reference voltage to reference voltage traces that extend along the...
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6107578 |
Printed circuit board having overlapping conductors for crosstalk compensation
Disclosed is a device for reducing crosstalk in an electrical connector. The device includes an insulating board with a plurality of layers. A first plurality of pairs of conductive paths is formed...
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6107895 |
Circulator and components thereof
A circulator having integrally formed conductors (20, 21, and 22) which may be folded to form overlaying conductors of a circulator. The circulator includes a lens (44) for shaping a biasing...
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6108313 |
Transmitter/receiver for use in multichannel time division duplexing system providing isolation between transmission channels and reception channels
A transmitter/receiver for use in a multichannel time division duplexing system having an independent combiner and divider to isolate a transmission channel from a reception channel. The...
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6097260 |
Distributed ground pads for shielding cross-overs of mutually overlapping stripline signal transmission networks
A distributed ground pad-based isolation arrangement for a multilayer stripline architecture is configured to effectively inhibit the mutual coupling of signals between overlapping regions of...
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6097261 |
Nonreciprocal microwave component having adjustable magnetic field strength
A microwave component is described with a microwave guiding arrangement for conducting electromagnetic waves and with a gyromagnetic material which is arranged in operational connection with the...
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6087998 |
Duplex antenna circuit assembly selectively operational in a transmit or a receive mode
A duplex antenna circuit assembly (1) selectively operational in a transmit or a receive mode. The assembly (1) has a transmitter amplifier (2) with an output coupled to an input of a transmitter...
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6087905 |
Nonreciprocal circuit device having a low-pass filter formed on a spacer
A nonreciprocal circuit device which can achieve miniaturization and cost reduction by increasing attenuation outside a passband and greatly decreasing the occurrence of extraneous radiation...
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6072375 |
Waveguide with edge grounding
A waveguide structure and associated method for forming the waveguide structure is disclosed. The waveguide structure is formed from at least two dielectric layers having opposing, substantially...
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6066992 |
Variable ISO attenuator using absorptive/reflective elements and latching
A variable absorptive/reflective high power attenuator for attenuating microwave signals in a communication system is formed from a circulator connected to a section transmission line such as a...
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6060958 |
Nonreciprocal circuit device having chamfered or tapered yoke side walls
A nonreciprocal circuit device wherein upper and lower yokes can easily be fitted together, thereby preventing the deviation between the upper and lower yokes to obtain excellent electric...
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6057743 |
Distributed noise reduction circuits in telecommunication system connector
A connector for telecommunication systems has input terminals and output terminals arranged in ordered arrays and connected by a circuit having a plurality of conductive paths connecting the...
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6046651 |
Microwave component
A microwave component is described with a substantially tub-shaped housing part which comprises a bottom portion and at least one wall portion merging into the circumference of the bottom portion,...
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6040524 |
Printed circuit board having two holes connecting first and second ground areas
A printed circuit board and video switcher board containing the circuit board including a first dielectric lamina having opposed surfaces and a first layer deposited on one of the surfaces which...
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6028494 |
High isolation cross-over for canceling mutually coupled signals between adjacent stripline signal distribution networks
A stripline isolation cross-over is configured to cancel signals that may be mutually coupled at cross-over points between adjacent stripline networks within a compact multilayer signal...
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6025759 |
Microwave integrated circuit including surface mounting type isolator
Disclosed is a surface mounting type isolator, which comprises: ferrite 1 having an internal magnetic field so as to render an external magnetic field unnecessary; ceramic substrate 5 into which...
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6023200 |
Apparatus for inhibiting cross talk under a difference mode
An apparatus for inhibiting cross talk under a difference mode is disclosed, in which undesired cross talk due to the adjacency and non-uniformness of the untwisted portion are eliminated when...
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6020793 |
Non-reciprocal circuit device
A non-reciprocal circuit device has a plurality of central conductors arranged so as to intersect mutually on a magnetic substance to which a d.c. magnetic field is applied, and matching capacitors...
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6011449 |
Surface mount technology contact for ferrite isolator/circulator applications
A structure for a passive microwave device. The structure includes a housing having circumferential side portions and selectively located openings in the side portions. In addition, electrical...
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6008705 |
Crosstalk suppression in wide, high-speed buses
A data transmission system generally comprising a bus with transmission lines, and a signal driver that applies a first signal to a first one of the transmission lines, and applies one or more...
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6005451 |
Microwave element
A microwave element is described with a substantially trough-shaped housing part having a bottom portion and at least one wall portion merging into the circumference of the bottom portion. A lid...
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5994974 |
Isolator comprising three central conductors intersecting each other at predetermined angles
The intersection angle formed by the central conductor connected to an input port and the central conductor connected to an output port is set to more than 120 degrees, preferably about 130 to 150...
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5987308 |
Portable terminal having a shared antenna with reduced standing wave ratio
It is an object of the present invention to provide a portable terminal which reduces an antenna standing-wave ratio and absorbs reflected waves without inserting an isolator so that a stable...
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5982249 |
Reduced crosstalk microstrip transmission-line
A reduced crosstalk microstrip transmission-line has a plurality of microstrips sandwiched between a lower base dielectric layer of flexible circuit material and an upper coverlay with higher...
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5963108 |
Circulator
The present invention relates to circulators for microwave frequencies and higher frequencies. The circulator (100;200;300) of the invention comprises a waveguide system, the waveguide system being...
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5945886 |
High-speed bus structure for printed circuit boards
The present invention provides for high speed signal buses in printed circuit boards. For high speed operation, each signal line of a bus has substantially the same electrical length as the other...
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5945887 |
Nonreciprocal circuit device and composite electronic component
A nonreciprocal circuit device that avoids the problems of increased loss and narrowed frequency bandwidth when used with a low power supply voltage. An isolator (nonreciprocal circuit device) has...
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5939952 |
Flat flexible cable with pseudo-twisted conductors
A flat flexible electrical cable includes a pair of pseudo-twisted conductors on a flexible dielectric substrate. Each conductor includes alternate straight and oblique sections. The straight...
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5933060 |
Waveguide circulator having piston movable against ferrite puck
The present invention relates to circulators for microwave frequencies and higher frequencies. The circulator (100;200;300) of the invention comprises a waveguide system, the waveguide system being...
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5926074 |
Nonreciprocal circuit device
A nonreciprocal circuit device with a plurality of central conductors each formed of a respective plurality of laminated strip conductors extending in the same direction. The central conductors...
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5926073 |
Nonreciprocal circuit device comprising first and second ferromagnetic bodies having different saturation magnetizations
A nonreciprocal circuit device with a simplified manufacturing process and a reduced manufacturing cost, without any increase in the magnetic material loss in a matching circuit. The nonreciprocal...
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5912597 |
Printed circuit board
A printed circuit board capable of suppressing radiation noise efficiently includes a first conductive layer where a plurality of power lines are provided at predetermined spacing along one...
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5907265 |
High-frequency circuit board trace crossing and electronic component therefor
An inexpensive high-frequency circuit device and its electronic component which allows two traces or lines to cross on the same surface without affecting other circuits characteristics. At least...
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5900789 |
Irreversible circuit element
A magnetic yoke also serves as a case for an irreversible circuit element. The magnetic yoke has a surface which is covered with such a high-conductivity metal coating film that an electric...
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5898346 |
Dual-band nonreversible circuit device comprising two nonreversible circuit elements contained in a single housing to be operable in different frequency bands
A dual-band nonreversible circuit device comprises a first circulator element (91) and a second circulator element (92) accommodated in a single housing (50, 50', 60) and operable around a first...
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5896563 |
Transmitting and receiving switch comprising a circulator and an automatic changeover switch which includes an impedance circuit
A transmitting and receiving apparatus including a transmitting system and a receiving system which prevents fluctuations in insertion losses caused by changes in transmission power, while...
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5886587 |
Flipped lumped element circulator
A lumped element circulator is provided in addition to a method for producing and flip mounting the circulator to a substrate. The resonant elements of the circulator are connected in either a...
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