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Directional Coupler

Directional Coupler-related patent applications - as published by the U.S. Patent and Trademark Office (USPTO).


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Fibet optic pulsed polarimetry
August 10, 2017 - N°20170227588

This disclosure is directed to fiber optic pulsed polarimeters based on either streak camera or photodiode detection using a backscatter tailored optical fiber and the polarization optical time domain reflectometry technique for conducting remote diagnostic measurements of inducing fields along the fiber. The backscatter tailored optical fiber comprises a single mode fiber with an array of fiber bragg gratings written ...
Method and apparatus for facilitating antenna calibration and transceiver
Telefonaktiebolaget Lm Ericsson (publ)
August 03, 2017 - N°20170222739

An apparatus for facilitating antenna calibration comprising: a directional coupler having first, second, third and fourth ports, the first port selectively connected to a radio transmitter or a radio receiver and the second port connected to an antenna; a power combiner/divider having first, second and third ports; the first port of the power combiner/divider selectively connected to a ...
High fidelity and high efficiency qubit readout scheme
International Business Machines Corporation
August 03, 2017 - N°20170222116

A technique relates to a qubit readout system. A cavity-qubit system has a qubit and a readout resonator and outputs a readout signal. A lossless superconducting circulator is configured to receive the microwave readout signal from the cavity-qubit system and transmit the microwave readout signal according to a rotation. A quantum limited directional amplifier amplifies the readout signal. A directional ...
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Cable tap
Technetix B.v.
July 13, 2017 - N°20170201001

There is provided a cable tap device for a catv network comprising a microstrip directional coupler on an electrical path between an input and an output and arranged to communicate with a splitter device associated with a plurality of tap ports. A tilt compensating circuit is disposed between the microstrip directional coupler and the splitter device. A feedback path comprising ...
Optical modulator with automatic bias correction
Stmicroelectronics Sa
July 13, 2017 - N°20170199399

An optical modulator uses an optoelectronic phase comparator configured to provide, in the form of an electrical signal, a measure of a phase difference between two optical waves. The phase comparator includes an optical directional coupler having two coupled channels respectively defining two optical inputs for receiving the two optical waves to be compared. Two photodiodes are configured to respectively ...
Passive equalizers for directional couplers
Infineon Technologies Ag
July 06, 2017 - N°20170195146

In accordance with an embodiment, a device includes a directional coupler having an input port, a transmitted port, a coupled port and an isolated port. The device also includes a first passive equalizer having a first terminal coupled to a first one of a coupled port and an isolated port of the directional coupler. The first passive equalizer includes a ...
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Microstrip line directional coupler
Alcatel-lucent Canada Inc.
June 22, 2017 - N°20170179565

An apparatus, e. G. A radio-frequency (rf) coupler, includes first and second microstrip lines. First and second coupling fingers extend from the first microstrip line into the space, and a third coupling finger extends from the second microstrip line into the space about centered between the first and second coupling fingers. Fourth and fifth coupling fingers extend from the first ...
Electromagnetic directional coupler
Raytheon Company
June 22, 2017 - N°20170179564

A directional coupler including input line has a first coupler portion that extends between an input port and transmitted port. The coupler also has an output line having a second coupler portion connected to an output port and that extends in a same direction as the first coupler portion and is directly above or below the first coupler portion and ...
Cable tap
Technetix B.v.
June 01, 2017 - N°20170155182

There is provided a cable tap device for a catv network comprising a microstrip directional coupler on an electrical path between an input and an output arranged to communicate with a splitter device associated with a plurality of tap ports. A ferrite core directional coupler is arranged in parallel with microstrip directional coupler with low frequency signals passing through ferrite ...
Remote sensing using transducer
Technetix B.v.
May 25, 2017 - N°20170145812

A system for determining a characteristic of an oil well includes a signal source to generate an excitation signal during a first time duration and to generate a local oscillator signal during a second time duration. The system further includes a directional coupler, and a resonator disposed in an annulus of an oil well to receive the excitation signal through ...
Single cable apparatus and method for hyperthermic treatments
Technetix B.v.
May 25, 2017 - N°20170143984

A medical apparatus operable to induce localized hyperthermia in a patient via an electromagnetic field emitted by an antenna of an applicator connected to an output of the medical apparatus includes a signal generator, a bidirectional coupler, and a controller. The signal generator generates a radio frequency signal as a function of an operating parameter to a single cable to ...
Monitored patch panel system
Facebook, Inc.
May 18, 2017 - N°20170141846

A monitored fiber optic patch panel system is disclosed. The system includes a unit controller and at least one patch panel unit. The unit controller includes a computer, a graphic display, and a universal serial bus (usb) hub. The patch panel unit is connected to the usb hub and includes connectors configured to receive a corresponding optical fiber. Optical directional ...
Multi-stage broadband directional coupler
Kathrein-werke Kg
May 18, 2017 - N°20170141451

An improved multi-stage broadband directional coupler with at least one line junction between two successive coupling sections has a) a change in the line thickness (ld) and/or b) a change in the line width (lb) and/or c) a change in the coupling distance (ka) between the adjacent coupling sections of the two coupling lines. An electrically conductive cover ...
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High fidelity and high efficiency qubit readout scheme
International Business Machines Corporation
May 11, 2017 - N°20170132524

A technique relates to a qubit readout system. A cavity-qubit system has a qubit and a readout resonator and outputs a readout signal. A lossless superconducting circulator is configured to receive the microwave readout signal from the cavity-qubit system and transmit the microwave readout signal according to a rotation. A quantum limited directional amplifier amplifies the readout signal. A directional ...
Compact and low loss y-junction for submicron silicon waveguide
Coriant Advanced Technology, Llc
May 11, 2017 - N°20170131470

A compact, low-loss and wavelength insensitive y-junction for submicron silicon waveguides. The design was performed using fdtd and particle swarm optimization (pso). The device was fabricated in a 248 nm cmos line. Measured average insertion loss is 0. 28±0. 02 db across an 8-inch wafer. The device footprint is less than 1. 2 μm×2 μm, orders of magnitude smaller than ...
High-frequency module
Murata Manufacturing Co., Ltd.
April 20, 2017 - N°20170110779

An inductor component is disposed outside a multilayer substrate, and thus a directional coupler defined by an internal wiring electrode and a coil electrode within the inductor component that is mounted on a pair of land electrodes, the multilayer substrate significantly reduces or prevents interference with other high-frequency circuit elements disposed in or on the multilayer substrate. Additionally, if a ...
Plasma processing apparatus
Tokyo Electron Limited
April 13, 2017 - N°20170103874

Detection accuracy of a power of a progressive wave and detection accuracy of a power of a reflection wave can be improved. In a plasma processing apparatus, a first directional coupler is provided in a first waveguide which is configured to connect a microwave generating unit and a first port of a circulator. A first detector is connected to the ...
Modular kit of a device for monitoring the spectral offset of two channels in networks ...
Cesnet, Zájmové Sdruzeni Právanických Osob
March 30, 2017 - N°20170093485

A first photodetector is interconnected with a control unit equipped with a communication interface and powered by a power supply module. An output of a first optical filter is connected to an input of a first photodetector via a second optical filter, while a second output of the second optical filter is connected to an input of a second photodetector. ...
Combiner, a power directional coupler and a method for manufacturing a power directional coupler and ...
Rohde & Schwarz Gmbh & Co. Kg
March 30, 2017 - N°20170093014

A power directional coupler is described which comprises two hollow conductors and a separation wall. Said separation wall has a coupling portion which comprises several holes which are arranged in said separation wall such that a high hole-wall relation is obtained, ensuring a good coupling at a small size of said power directional coupler. Further, a combiner and a method ...
Waveguide directional coupler
U.s.a. As Represented By The Administrator Of The National Aeronautics And Space Administration
March 30, 2017 - N°20170093013

A directional coupler assembly includes a waveguide housing. The waveguide housing has a first segment and a second segment. A first waveguide port and a second waveguide port are disposed on opposite sides of the waveguide housing. A third waveguide port is disposed on a third side of the waveguide housing, the third waveguide port being disposed substantially orthogonal to ...
High fidelity and high efficiency qubit readout scheme
International Business Machines Corporation
March 30, 2017 - N°20170092833

A technique relates to a qubit readout system. A cavity-qubit system has a qubit and a readout resonator and outputs a readout signal. A lossless superconducting circulator is configured to receive the microwave readout signal from the cavity-qubit system and transmit the microwave readout signal according to a rotation. A quantum limited directional amplifier amplifies the readout signal. A directional ...
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