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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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Low noise network interface device
Ppc Broadband, Inc.
January 04, 2018 - N°20180007425

The present disclosure provides a network interface device, including an active downstream radio-frequency (rf) signal path connecting an entry port and an active port. The network interface device also includes a passive downstream rf signal path connecting the entry port and a passive port. The network interface device further includes an active upstream rf signal path connecting the entry port ...
Method and system for waveguide delay based equalization with summing at single-ended to differential converters ...
Luxtera, Inc.
January 04, 2018 - N°20180006732

Methods and systems for waveguide delay based equalization summing at single-ended to differential converters in optical communication are disclosed and may include: in an optoelectronic receiver including a directional coupler, photodetectors, transimpedance amplifiers (tias), and a gain stage, receiving an input optical signal; splitting the input optical signal into first and second optical signals using the directional coupler; generating a ...
Method and system for waveguide delay based equalization with current and optical summing in optical ...
Luxtera, Inc.
January 04, 2018 - N°20180006731

Methods and systems for waveguide delay based equalization with current and optical summing in optical communication are disclosed and may include an optoelectronic receiver including a directional coupler, two or more photodiodes, and one or more current mirrors. The optoelectronic receiver may be operable to: receive an input optical signal; split the input optical signal into first and second optical ...
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Wireless device with a multi-turn directional coupler
Intel Ip Corporation
December 28, 2017 - N°20170373767

A directional coupler disclosed herein may include a main line provided on a substrate, the main line having a first end connected to an input port and a second end connected to an output port. The coupler may include a coupled line disposed on the substrate, the coupled line having a first end connected to a coupled port and a ...
Magnetic resonance imaging apparatus and apparatus for measuring radio frequency output for the same
Toshiba Medical Systems Corporation
December 28, 2017 - N°20170371011

An apparatus for measuring radio frequency output for a magnetic resonance imaging apparatus includes a plurality of directional couplers, a comparator, a switcher and a converter. The plurality of directional couplers are different in degree of coupling from each other, and attenuate an rf signal which is generated in an rf signal generator and amplified in an rf power amplifier. ...
Communication device and method for determining a load impedance
Infineon Technologies Ag
December 07, 2017 - N°20170352947

According to one embodiment, a communication device is described comprising an antenna, a signal path for supplying a signal to the antenna, two directional couplers arranged within the signal path, wherein each directional coupler is coupled to an adjustable impedance defining the characteristic impedance of the directional coupler, a controller configured to set, for each of a plurality of impedances, ...
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Auto-tunable wireless charger
Honeywell International Inc.
November 16, 2017 - N°20170331314

Devices, methods, systems, and computer-readable media for an auto-tunable wireless charger are described herein. One or more embodiments include a tuner comprising a directional coupler connected between a frequency generator and a tuning cap to receive reflections on a transmit line of the directional coupler, and a controller coupled to the directional coupler and the tuning cap to monitor the ...
Radio frequency duplexer
Huawei Technologies Co., Ltd.
November 09, 2017 - N°20170324393

A radio frequency duplexer with a first directional coupler configured to divide an input reception signal into a first auxiliary reception signal and a second auxiliary reception signal, where the first auxiliary reception signal and the second auxiliary reception signal comprise signal components at a reception frequency, a first filter configured to filter the first auxiliary reception signal to obtain ...
Antenna system calibration
Nokia Solutions And Networks Oy
November 09, 2017 - N°20170324161

A method for antenna calibration is disclosed, the method including driving calibration signals for antenna array beam calibration to an antenna array feeder line in a transceiver front end unit by using one or more directional couplers and/or radio frequency probes, wherein calibration signal paths are integrated inside the transceiver front end unit. Measurements are carried out on the ...
Directional couplers and devices including same
Skyworks Solutions, Inc.
November 09, 2017 - N°20170324136

Directional couplers having a chain configuration and devices incorporating same. In some implementations, a chain coupler assembly can include a plurality of couplers each having a driver arm configured to route a respective rf signal and a coupled arm disposed physically proximate to the driver arm to detect a portion of power of the respective rf signal. Portions of the ...
Transmission line array for explosive detection using nuclear quadrupole resonance
R.a. Miller Industries, Inc.
November 09, 2017 - N°20170322334

A transmission line array is used for explosive/contraband detection using nuclear quadrupole resonance in which the array is driven in-phase with synchrony frequency-swept signals. Each of the balanced transmission lines is fed with a low power swept frequency source and stimulated emissions are picked out with a directional coupler. Location is provided using a cross grid array or a ...
Method for calibrating a radar system
Robert Bosch Gmbh
November 09, 2017 - N°20170322288

A radar system including a reference channel formed symmetrically in relation to a main channel, with a first oscillator, generating a first input signal, which is feedable to an antenna in the main channel, a reflected portion of the first input signal being feedable to a first mixer, the first input signal in the reference channel being feedable to a ...
High-frequency module
Murata Manufacturing Co., Ltd.
October 26, 2017 - N°20170310355

A high-frequency module includes a directivity switching switch unit that switches an end portion of a first sub line, which is connected to an output terminal, and first and second resistor switching switch units that switch first and second termination resistors which are connected to the first sub line. The directivity of coupled output in the first sub line of ...
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Antenna array system for producing dual circular polarization signals utilizing a meandering waveguidw
The Boeing Company
October 12, 2017 - N°20170294719

An antenna array system for directing and steering an antenna beam is described in accordance with the present invention. The antenna array system may include a feed waveguide having a feed waveguide length, at least two directional couplers in signal communication with the feed waveguide, at least two pairs of planar coupling slots along the feed waveguide length, and at ...
Rf multiplexer with integrated directional couplers
Qualcomm Incorporated
September 28, 2017 - N°20170279469

An rf diplexer is provided with an integrated diplexer that shares a primary inductor included in a channel within the rf diplexer.
Directional coupler and power splitter made therefrom
Akg Acoustics Gmbh
September 21, 2017 - N°20170271742

A directional coupler including at least two coupled lines and at least three ports is disclosed. A first coupled line of the at least two coupled lines includes at least two ports such as an input port and an output port. A second coupled line of the at least two coupled lines includes a forward path and a backward path ...
Cable network device
Technetix B.v.
September 14, 2017 - N°20170264938

There is provided a cable network device comprising an input associated with a plurality of outputs, wherein each output is connected to a respective microstrip directional coupler and each microstrip directional coupler is connected to at least one of the other microstrip directional couplers. The microstrip directional couplers form a series of microstrip directional couplers, with a last microstrip directional ...
Power amplifier with input power protection circuits
September 14, 2017 - N°20170264253

An rf power amplifier circuit and input power limiter circuits are disclosed. A power detector generates a voltage output proportional to a power level of an input signal. There is a directional coupler with a first port connected to a transmit signal input, a second port connected to the input matching network, and a third port connected to the power ...
Tunable optical directional coupler
September 07, 2017 - N°20170255079

A tunable optical directional coupler includes a first waveguide and a second waveguide proximal to the first waveguide, the first and second waveguides defining a light-coupling coefficient. The tunable optical directional coupler also includes a doped junction having a refractive index that is responsive to an applied bias voltage wherein the refractive index is changeable to enable tuning of the ...
Integrated filter and directional coupler assemblies
Skyworks Solutions, Inc.
August 31, 2017 - N°20170250666

Integrated filter and electromagnetic coupler assemblies. In certain examples, an integrated filter and electromagnetic coupler assembly includes a filter having a capacitance and a series inductance, the series inductance being connected between an input port and an output port of the integrated filter and electromagnetic coupler assembly, and combination of the capacitance and the series inductance being selected to provide ...
Radio frequency generator automated test system
Frontier Engineering, Llc
August 24, 2017 - N°20170244500

A test system for monitoring the performance of a radio frequency signal generator is introduced. The system operates to predict approaching or imminent failure of the radio frequency generator. The system includes a directional coupler, a first detector, a second detector, and a processor to collect, process, and analyze data from the radio frequency generator under test.
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