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Rf Antenna patents



      
           
This page is updated frequently with new Rf Antenna-related patent applications. Subscribe to the Rf Antenna RSS feed to automatically get the update: related Rf RSS feeds. RSS updates for this page: Rf Antenna RSS RSS


Hydrocarbon resource heating apparatus including rf contacts and grease injector and related methods

Hydrocarbon resource heating apparatus including rf contacts and grease injector and related methods

Hydrocarbon resource heating apparatus including rf contacts and guide member and related methods

Hydrocarbon resource heating apparatus including rf contacts and guide member and related methods

Hydrocarbon resource heating apparatus including rf contacts and guide member and related methods

Hydrocarbon resource heating apparatus including rf contacts and anchoring device and related methods

Date/App# patent app List of recent Rf Antenna-related patents
05/14/15
20150130675
 Microcellular communications antenna and associated methods patent thumbnailMicrocellular communications antenna and associated methods
A radio frequency (rf) communications system includes a local rf communications device and an rf antenna including a conical rf launch structure coupled to the local rf communications device, and an elongate electrical conductor having a proximal end coupled to the conical rf launch structure and a distal end spaced apart from the conical rf launch structure to define an elongate rf coverage pattern. The elongate conductor may be a coaxial cable.
05/14/15
20150129224
 Hydrocarbon resource heating apparatus including rf contacts and grease injector and related methods patent thumbnailHydrocarbon resource heating apparatus including rf contacts and grease injector and related methods
A device for heating hydrocarbon resources in a subterranean formation having a wellbore therein may include a tubular radio frequency (rf) antenna within the wellbore and a tool slidably positioned within the tubular rf antenna. The tool may include an rf transmission line and at least one rf contact coupled to a distal end of the rf transmission line and biased in contact with the tubular rf antenna.
05/14/15
20150129223
 Hydrocarbon resource heating apparatus including rf contacts and guide member and related methods patent thumbnailHydrocarbon resource heating apparatus including rf contacts and guide member and related methods
A device for heating hydrocarbon resources in a subterranean formation having a wellbore therein may include a tubular radio frequency (rf) antenna within the wellbore and a tool slidably positioned within said tubular rf antenna. The tool may include an rf transmission line and at least one rf contact coupled to a distal end of said rf transmission line and biased in contact with said tubular rf antenna.
05/14/15
20150129222
 Hydrocarbon resource heating apparatus including rf contacts and anchoring device and related methods patent thumbnailHydrocarbon resource heating apparatus including rf contacts and anchoring device and related methods
A device for heating hydrocarbon resources in a subterranean formation having a wellbore therein may include a tubular radio frequency (rf) antenna within the wellbore, and a tool slidably positioned within the tubular rf antenna. The tool may include an rf transmission line and at least one rf contact coupled to a distal end of the rf transmission line and biased in contact with the tubular rf antenna.
05/14/15
20150129202
 Method of heating a hydrocarbon resource including slidably positioning an rf transmission line and related apparatus patent thumbnailMethod of heating a hydrocarbon resource including slidably positioning an rf transmission line and related apparatus
A method for heating hydrocarbon resources in a subterranean formation may include positioning a tubular conductor within a wellbore in the subterranean formation and slidably positioning a radio frequency (rf) transmission line within the tubular conductor so that a distal end of the transmission line is electrically coupled to the tubular conductor. The method may also include supplying rf power, via the rf transmission line, to the tubular conductor so that the tubular conductor serves as an rf antenna to heat the hydrocarbon resources in the subterranean formation..
05/07/15
20150122959
 Amr/ami pit lid antenna bracket patent thumbnailAmr/ami pit lid antenna bracket
An rf antenna bracket for placement through and under a utility meter pit lid for use in an amr or ami system that includes a transmitter bracket cap for placement in a hole disposed in a meter pit lid; a cylindrical threaded neck disposed under and depending downwardly from said cap; a female threaded collar threadably disposed on said threaded neck; first and second elongate parallel slide posts connected to and depending downwardly from said female threaded collar, said first slide post having teeth disposed linearly along the length of an interior side of said first slide post; and an antenna mount slidably affixed to said first and second slide posts, said antenna mount engaging said teeth on said first slide post for vertical adjustment and positioning.. .
04/30/15
20150118978
 Transmit and receive rf multiplexer patent thumbnailTransmit and receive rf multiplexer
A transmit and receive rf multiplexer, which includes a first hybrid rf transmit coupler, a first hybrid rf receive coupler, a hybrid rf antenna coupler, and rf bandpass filter and inversion circuitry, is disclosed. The first hybrid rf transmit coupler has a first main transmit port and a pair of transmit ports having a first in-phase transmit port and a first quadrature-phase transmit port.
Rf Micro Devices, Inc.
04/30/15
20150115030
 Radio frequency antenna carried on a smart card patent thumbnailRadio frequency antenna carried on a smart card
A smart card apparatus and related systems are presented here. The smart card apparatus includes a dielectric substrate forming a card body, a card circuit module carried by the dielectric substrate, and a radio frequency (rf) antenna arrangement carried by the dielectric substrate.
Echostar Technologies L.l.c.
04/30/15
20150114645
 System including compound current choke for hydrocarbon resource heating and associated methods patent thumbnailSystem including compound current choke for hydrocarbon resource heating and associated methods
A system for heating a hydrocarbon resource in a subterranean formation having a wellbore extending therein, the system including a radio frequency (rf) source, an rf antenna configured to be positioned within the wellbore, a transmission line coupling the rf source and the rf antenna, and a compound current choke surrounding the transmission line. The compound current choke includes a plurality of spaced apart, overlapping, electrically conductive sleeves.
Harris Corporation
04/16/15
20150101745
 Manufacturing of high resolution conductive patterns using organometallic ink and banded anilox rolls patent thumbnailManufacturing of high resolution conductive patterns using organometallic ink and banded anilox rolls
Disclosed herein are systems methods for using ink comprising organometallics in a flexographic printing process using engraved anilox rolls to transfer ink to an impression roll that prints a pattern on a substrate. A banded anilox roll with more than one geometry and/or volume of cells may be used in these production systems and methods.
Unipixel Displays, Inc.
04/02/15
20150091586

Capacitive proximity sensor configuration including an antenna ground plane


Embodiments of a capacitive sensor configuration for proximity detection by a playback device are provided. The playback device may include a capacitive proximity sensor configured to detect physical movement in a first direction, and a radio frequency (rf) antenna ground plane oriented at a relative angle to the capacitive proximity sensor.
Sonos, Inc.
03/26/15
20150085724

High linearity rf diplexer


A first rf diplexer, which includes a first hybrid rf coupler, a second hybrid rf coupler, a first rf filter, and a second rf filter, is disclosed. The first hybrid rf coupler has a first main port, a first in-phase port, a first quadrature-phase port, and a first isolation port, which is coupled to a primary rf antenna.
Rf Micro Devices, Inc.
03/26/15
20150085708

Carrier aggregation using multiple antennas


Rf front-end circuitry, which includes rf switching and duplexing circuitry, a first rf diplexer, and a second rf diplexer, is disclosed. The rf switching and duplexing circuitry operates in one of a group of rf transmit modes, such that the group of rf transmit modes includes at least one transmit uplink carrier aggregation mode.
Rf Micro Devices, Inc.
03/26/15
20150083387

Rf antenna assembly with spacer and sheath and related methods


An rf antenna assembly is positioned within a wellbore in a subterranean formation for hydrocarbon resource recovery. The rf antenna assembly includes first and second tubular conductors to be positioned within the wellbore, and having adjacent joined together ends, and first and second rf transmission line segments extending within the first and second tubular conductors and having adjacent joined together ends aligned with the joined together adjacent ends of the first and second tubular conductors.
Harris Corporation
02/12/15
20150043763

Rf antenna and hearing device with rf antenna


The present disclosure relates to an rf antenna adapted to receive and/or transmit electromagnetic rf signals within a first frequency range enclosing a first frequency of resonance of the rf antenna, the rf antenna comprising: an electrically conductive antenna element having a feed for electrically connecting to an rf transmitter and/or an rf receiver; an electronic component adapted to receive and/or provide one or more electric signals from/to an electronic circuit within a second frequency range not overlapping the first frequency range; and one or more electric leads electrically connected to lead the one or more electric signals between the electronic component and the electronic circuit, each of the one or more electric leads being electrically connected to the electronic circuit through a respective inductor adapted to reflect and/or attenuate signals within the first frequency range and pass signals within the second frequency range.. .
Oticon A/s
02/05/15
20150034304

Hydrocarbon resource heating system including balun having a ferrite body and related methods


A system for heating hydrocarbon resources in a subterranean formation having a wellbore therein includes a coaxial transmission line, a balun, and a radio frequency (rf) antenna coupled together in series and configured to be positioned in the wellbore so that the rf antenna heats the hydrocarbon resources in the subterranean formation. The coaxial transmission line includes an inner conductor and an outer conductor surrounding the inner conductor.
Harris Corporation
02/05/15
20150034303

Hydrocarbon resource heating system including sleeved balun and related methods


A system for heating hydrocarbon resources in a subterranean formation having a wellbore therein includes a coaxial transmission line, a balun, and a radio frequency (rf) antenna coupled together in series and configured to be positioned in the wellbore so that the rf antenna heats the hydrocarbon resources in the subterranean formation. The coaxial transmission line includes an inner conductor and an outer conductor surrounding the inner conductor.
Harris Corporation
01/15/15
20150014276

Plasma processing method


A plasma processing method for performing a plasma process on a processing target substrate is provided. The plasma processing method includes: segmenting a rf antenna into an inner coil, an intermediate coil, and an outer coil with gaps therebetween in a radial direction, respectively, the inner coil, the intermediate coil and the outer coil being electrically connected to one another in parallel between a first node and a second node; providing a variable intermediate capacitor and a variable outer capacitor between the first node and the second node, the variable intermediate capacitor being electrically connected in series to the intermediate coil, the variable outer capacitor being electrically connected in series to the outer coil, no reactance device being connected to the inner coil; and controlling plasma density distribution on the processing target substrate by selecting or variably adjusting electrostatic capacitances of the intermediate capacitor and the outer capacitor..
Tokyo Electron Limited
01/15/15
20150013967

Hydrocarbon resource heating system including rf antennas driven at different phases and related methods


A system for heating hydrocarbon resources in a subterranean formation having spaced-apart wellbores therein aligned in a plane may include radio frequency (rf) antennas to be positioned within respective ones of the spaced apart wellbores aligned in the plane. The system may also include a plurality of discrete rf sources each coupled to one of the rf antennas and configured so that the rf antennas are driven at a same frequency as each other rf antenna but at different phases..
Harris Corporation
01/08/15
20150007974

Hydrocarbon resource heating apparatus including ferromagnetic transmission line and related methods


A device for heating hydrocarbon resources in a subterranean formation having a wellbore therein may include an rf antenna configured to be positioned within the wellbore to heat the hydrocarbon resources in the subterranean formation. The device may further include a radio frequency (rf) source, and an rf transmission line coupling the rf antenna and the rf source.
Harris Corporation
01/01/15
20150000112

Personalized rf coil array for mr imaging guided interventions


The invention relates to a method of manufacturing a personalized rf coil array for mr imaging guided interventions. The method comprises the steps of: —acquiring diagnostic image data reflecting the anatomy of a portion of a patient's body (10); —planning an intervention on the basis of the diagnostic image data, wherein a field of the intervention within the patient's body (10) portion is determined; —arranging one or more rf antennae (11, 12, 13) on a substrate (19), which is adapted to the patient's anatomy, in such a manner that the signal-to-noise ratio of mr signal acquisition via the one or more rf antennae (11, 12, 13) from the field of the intervention is optimized.
Koninklijke Philips N.v.
12/11/14
20140361937

Method for rf testing utilizing a test fixture


One embodiment provides a system, method, and test fixture for performing rf testing of an electronic device. An rf antenna is received in a base plate.
12/11/14
20140361934

Antenna window and antenna pattern for electronic devices and methods of manufacturing the same


A housing for an electronic device, including an aluminum layer enclosing a volume that includes a radio-frequency (rf) antenna is provided. The housing includes a window aligned with the rf antenna; the window including a non-conductive material filling a cavity in the aluminum layer; and a thin aluminum oxide layer adjacent to the aluminum layer and to the non-conductive material; wherein the non-conductive material and the thin aluminum oxide layer form an rf-transparent path through the window.
12/04/14
20140353386

Smart card


A smart card includes a main stuff body and a data display module. The main stuff body includes a rf antenna, a charge pump module, a first processing module, and a second processing module.
11/27/14
20140349574

Device with an eeprom having both a near field communication interface and a second interface


A peripheral device and a method for programming the read/writeable memory of the rfid circuitry by communications between either rf antenna or bus communications port controller interface or both. In the peripheral device, an eeprom , bus communications controller interface, nfc interface, antenna, and logic controller operate to receive and transmit configuration and calibration data between a wireless personal area network circuit and an external wireless personal area network enabled device.
11/27/14
20140345534

Livestock feeder-embedded rfid antenna apparatus


Several embodiments of a novel rfid antenna apparatus that are uniquely structurally integrated with livestock feeder units are disclosed. In one embodiment, a circular antenna apparatus embeds a circular livestock feeder unit by structurally encapsulating or surrounding a perimeter of the circular livestock feeder unit.
11/20/14
20140340272

Telemetry extension cable


The invention of the disclosure is an extension cable to connect via telemetry, an external medical device in a non-sterile zone with a medical device that is within a sterile zone. The telemetry extension cable includes a cable having a length and comprising a conductor, a first rf antenna attached at one end of the cable and a second rf antenna attached at a second end of the cable, at least one of the first or second antennas configured to transmit and receive rf signals to and from an implantable medical device..
11/13/14
20140336734

Hyperthermia system and a generating a focused threedimensional rf field


The invention relates to a hyperthermia system for treating a patient, comprising an rf power unit, one or more rf antenna's connected to the rf power unit for generating a focused three-dimensional rf field, a controller for adjusting the rf power source and/or the one or more rf antenna's for steering the focused three-dimensional rf field; a sensor for sensing a parameter representative of the focused three-dimensional rf field; a communication environment for inputting data from the said sensor and/or additional information provided by the patient, said communication environment being capable of generating trigger signals to the controller for in use steering the focused three-dimensional rf filed in real time. The invention further relates to a method for generation a focused three-dimensional rf field..
11/13/14
20140333303

Magnetic resonance rf excitation with two resonance frequencies to detect the cest effect


In a magnetic resonance apparatus and method for rf excitation with two resonance frequencies to detect the cest effect, the rf excitation is achieved with the use of a first rf antenna and a second rf antenna of the magnetic resonance apparatus with a first portion of the rf excitation at a first resonance frequency of the two resonance frequencies being implemented with the first rf antenna, and a second portion of the rf excitation at a second resonance frequency of the two resonance frequencies is implemented with the second rf antenna.. .
10/30/14
20140320012

Self-cleaning radio frequency plasma source


A self-cleaning radio frequency (rf) plasma source for a semiconductor manufacturing process is described. Various examples provide an rf plasma source comprising an rf antenna and a rotatable dielectric sleeve disposed around the rf antenna.
09/18/14
20140263993

Ion source having negatively biased extractor


An ion source for use in a radiation generator includes a sealed envelope containing an ionizable gas therein. The ion source also includes a rf antenna external to the sealed envelope, the rf antenna to transmit time-varying electromagnetic fields within the sealed envelope for producing ions from the ionizable gas.
09/18/14
20140263181

Method and generating highly repetitive pulsed plasmas


A pulsed radio frequency inductive plasma source and method are provided. The source may generate plasma at gas pressures from 1 torr to 2000 torr.
09/18/14
20140262224

Rf antenna assembly with feed structure having dielectric tube and related methods


An rf antenna assembly may be positioned within a wellbore in a subterranean formation for hydrocarbon resource recovery. The rf antenna assembly includes first and second tubular conductors and a feed structure therebetween defining a dipole antenna to be positioned within the wellbore, and an rf transmission line extending within one of the tubular conductors.
09/18/14
20140262223

Rf antenna assembly with dielectric isolator and related methods


An rf antenna assembly is positioned within a wellbore in a subterranean formation for hydrocarbon resource recovery. The rf antenna assembly includes first and second tubular conductors and a dielectric isolator therebetween.
09/18/14
20140262222

Rf antenna assembly with series dipole antennas and coupling structure and related methods


An rf antenna assembly is to be positioned within a wellbore in a subterranean formation for hydrocarbon resource recovery. The rf antenna assembly includes a series of tubular dipole antennas to be positioned within the wellbore, each tubular dipole antenna having a pair of dipole elements, and an rf transmission line extending within the series of tubular dipole antennas.
08/28/14
20140240185

Multiband rf antenna


This invention relates to a miniature multiband antenna, in which a substrate being the carrier of a conductive element, and the conductive element configured as a layer onto the substrate and being the radiator in form of a slot, and a conductive layer configured onto the substrate and being the antenna feed line in form of a polygon patch area. Alternative embodiments illustrate use of slot type—and meander type antennas.
08/28/14
20140238631

Rf aperture coldplate


An rf aperture coldplate for positioning in heat transfer proximity to heat-generating elements of an rf antenna system is presented. The rf aperture coldplate has a front side and a rear side.
08/21/14
20140231416

Radio frequency antenna assembly for hydrocarbon resource recovery including adjustable shorting plug and related methods


A radio frequency (rf) antenna assembly configured to be positioned within a wellbore in a subterranean formation for hydrocarbon resource recovery may include an rf transmission line and an rf antenna coupled to the rf transmission line. The rf antenna assembly may also include an adjustable balun that may include a tubular balun housing surrounding the rf transmission line and defining a space therebetween.
08/14/14
20140224472

Apparatus for heating hydrocarbons with rf antenna assembly having segmented dipole elements and related methods


The apparatus includes an rf antenna assembly to be positioned within a wellbore and coupled to an rf source. The rf antenna assembly includes a first tubular dipole element having opposing proximal and distal ends, an rf transmission line extending through the proximal end of the first tubular dipole element and including an inner conductor, an outer conductor, and a dielectric therebetween.
08/07/14
20140220891

Apparatus and controlling functions of a mobile phone via nfc communication with an external rf reader


Disclosed herein is an apparatus for controlling the ringtone, camera, and communication functions of a mobile terminal using a near field communication (nfc) chip module and an external radio frequency (rf) reader. The apparatus includes an nfc chip module, a base band chip, and a usim card.
08/07/14
20140218167

Wirelessly sensed and controlled locking device


A wirelessly sensed and controlled locking device is identified, sensed and controlled by a mobile electronic device to be locked or unlocked. The mobile electronic device comprises a battery, an information transmission chip and a first rf antenna.
08/07/14
20140216726

Apparatus for heating a hydrocarbon resource in a subterranean formation including a fluid balun and related methods


An apparatus is provided for heating a hydrocarbon resource in a subterranean formation having a wellbore extending therein. The apparatus includes a radio frequency (rf) antenna configured to be positioned within the wellbore, a transmission line configured to be positioned in the wellbore and coupled to the rf antenna, and an rf source configured to be coupled to the transmission line.
08/07/14
20140216724

Hydrocarbon resource recovery apparatus including a transmission line with fluid tuning chamber and related methods


An apparatus for heating a hydrocarbon resource in a subterranean formation having a wellbore extending therein is provided. The apparatus includes a radio frequency (rf) antenna configured to be positioned within the wellbore, a transmission line configured to be positioned in the wellbore and coupled to the rf antenna, and an rf source configured to be coupled with the transmission line.
08/07/14
20140216346

Plasma processing apparatus


A plasma processing apparatus includes a processing chamber including a dielectric window; a coil-shaped rf antenna, provided outside the dielectric window; a substrate supporting unit provided in the processing chamber; a processing gas supply unit; an rf power supply unit for supplying an rf power to the rf antenna to generate a plasma of the processing gas by an inductive coupling in the processing chamber, the rf power having an appropriate frequency for rf discharge of the processing gas; a correction coil, provided at a position outside the processing chamber where the correction coil is to be coupled with the rf antenna by an electromagnetic induction, for controlling a plasma density distribution on the substrate in the processing chamber; a switching device provided in a loop of the correction coil; and a switching control unit for on-off controlling the switching device at a desired duty ratio by pulse width modulation.. .
08/07/14
20140216345

Plasma processing apparatus


A plasma processing apparatus includes a processing chamber including a dielectric window; a coil-shaped rf antenna, provided outside the dielectric window; a substrate supporting unit provided in the processing chamber; a processing gas supply unit; an rf power supply unit for supplying an rf power to the rf antenna to generate a plasma of the processing gas by an inductive coupling in the processing chamber, the rf power having an appropriate frequency for rf discharge of the processing gas; a correction coil, provided at a position outside the processing chamber where the correction coil is to be coupled with the rf antenna by an electromagnetic induction, for controlling a plasma density distribution on the substrate in the processing chamber; a switching device provided in a loop of the correction coil; and a switching control unit for on-off controlling the switching device at a desired duty ratio by pulse width modulation.. .
07/31/14
20140210472

Reducing the radio-frequency transmit field in a predetermined volume during magnetic resonance imaging


Embodiments of the invention relate to a magnetic resonance imaging system (300) for acquiring magnetic resonance data (358) from a subject (318) that may comprise an electrically conductive object (e.g. An implant or a medical device).
07/24/14
20140206292

Electronic shelf label system


An electronic shelf label (esl) system is disclosed. The esl system includes a shelf, at least an esl, and a radio-frequency (rf) signal transceiver.
07/24/14
20140204581

Lighting device with rf antenna


The present invention relates to a lighting device (1). The lighting device comprises a light source(7) arranged at a base (2) of the lighting device, the light source having a main forward emission direction (12).
07/17/14
20140197930

Field device for automation technology


A field device for automation technology, which has a metal housing for accommodating a field device electronics. On the field device at least one opening is provided, which is closable via a lid composed at least partially of a non-metallic material, wherein an rfid chip and an rf antenna are arranged in the housing in such a manner that communication and energy exchange with an rfid reading device arranged outside of the field device can transpire, and wherein the reading device is so embodied that it provides sufficient energy to the rfid chip when the energy supply to the field device is interrupted, in order to read out via the rfid antenna the data stored on the rfid chip..
07/17/14
20140197929

Wearable rfid system


Apparatus and methods are provided for automatically interrogating a tagged object using radio frequency identification (rfid) when the object is moved. In one embodiment, a worker is outfitted with a wearable rfid system including an rf antenna, an rfid reader, and a holder to hold the antenna and reader during operation.
07/10/14
20140191909

Low profile omni-directional planar antenna with wifi video streaming capability through broadband network


An antenna device includes a housing defining an interior cavity, and an rf antenna situated within the housing. The rf antenna receives high definition television signals broadcast over the air.
07/03/14
20140184391

System and optimizing the process of identifying items tagged with rfid tags in an enclosed shielded space


A system and method comprises a plurality of rf antennas having beams directed to a storage space in which medical items having rfid tags are stored. Each antenna is controlled to inject energy at a different frequency in a frequency-hopping set of frequencies to activate the tags.
06/19/14
20140169510

Receiver architecture with reconfigurable on-chip matching for wideband operation and off-chip matching for low-power operation


A circuit for a receiver with reconfigurable low-power or wideband operation may comprise one or more main signal paths each coupled to a first port and including a low-noise amplifier (lna) configured to provide a radio frequency (rf) signal to a main mixer circuit. An auxiliary signal path may be coupled to a second port.
06/05/14
20140151028

Hydrocarbon resource recovery system including rf transmission line extending alongside a well pipe in a wellbore and related methods


A hydrocarbon resource recovery system for a laterally extending wellbore in a subterranean formation may include a radio frequency (rf) source and an electrically conductive well pipe extending within the laterally extending wellbore. The hydrocarbon resource recovery system may further include an rf transmission line coupled to the rf source and extending alongside in parallel with an exterior of the electrically conductive well pipe within the laterally extending wellbore.
05/15/14
20140131450

Embedded radio frequency identification (rfid) package


A radio frequency identification (rfid) device is described. In one or more implementations, the rfid device includes an integrated circuit (ic) die electrically connected to a radio frequency (rf) antenna winding for transmitting electronically stored information via the rf antenna winding.
05/15/14
20140131044

Hydrocarbon resource heating device including superconductive material rf antenna and related methods


A device for heating hydrocarbon resources in a subterranean formation having a wellbore therein may include a radio frequency (rf) antenna positioned within the wellbore. The rf antenna may include a superconductive material.
05/01/14
20140118151

External antenna detection device


Systems and methods for detecting that a removable antenna is electrically connected to a communication device are disclosed. An exemplary detection device includes a visual indicator component and a data indicator component.
04/24/14
20140110395

System including tunable choke for hydrocarbon resource heating and associated methods


A system and method for heating a hydrocarbon resource in a subterranean formation having a wellbore extending therein, include the use of a radio frequency (rf) source, an rf antenna to be positioned within the wellbore and a transmission line coupling the rf source and the rf antenna. A tunable choke is positioned on the transmission line between the rf source and rf antenna, and a controller is coupled to the tunable choke.
04/24/14
20140110104

Hydrocarbon processing apparatus including resonant frequency tracking and related methods


A device for processing hydrocarbon resources in a subterranean formation having a laterally extending wellbore therein may include a radio frequency (rf) antenna configured to be positioned within the laterally extending wellbore, and at least one feedback conductor configured to be positioned along the laterally extending wellbore. The device may also include an rf circuit configured to supply rf power to the hydrocarbon resources via the rf antenna.
04/10/14
20140097752

Inductively coupled plasma ion source chamber with dopant material shield


A plasma ion source including a plasma chamber, gas inlets, an rf antenna, an rf window, an extraction plate, a window shield, and a chamber liner. The rf window may be positioned intermediate the rf antenna and the plasma chamber.
03/27/14
20140087672

Cmos based rf antenna switch


A novel and useful radio frequency (rf) front end module (fem) circuit that provides high linearity and power efficiency and meets the requirements of modern wireless communication standards such as 802.11 wlan, 3g and 4g cellular standards, bluetooth, zigbee, etc. The configuration of the fem circuit permits the use of common, relatively low cost semiconductor fabrication techniques such as standard cmos processes.
03/13/14
20140071001

Method for securing a wireless device for rf testing


A system and method for testing rf characteristics of a wireless device. The wireless device is positioned in an x-position and a y-position of a horizontal plane of a test fixture.
03/13/14
20140070697

Internal rf antenna with dielectric insulation


Disclosed is a radio frequency (rf) antenna for plasma ion sources. The rf antenna includes a low-resistance metal tube having an inner and outer diameter.
03/06/14
20140062806

Cable reel axle shaft with integrated radio frequency rotary coupling


In one embodiment, a cable reel axle shaft is configured with a mounting member and an encased rotary coupling. In particular, a first end of the axle shaft at the mounting member comprises a stationary radio frequency (rf) connection (e.g., a stator), and another end of the axle shaft comprises a rotating rf connection (e.g., a rotor).
02/27/14
20140058690

Method and device for remotely sensing and monitoring physical quantities with low power ad hoc network


A device for remotely sensing and monitoring physical quantities with a low power ad hoc network is used for monitoring and remotely transmitting environment parameters of a locale where the device is located. The device includes a physical quantity acquisition and processing unit, a z-wave core unit, an audible and visual alarm unit, a direct-current (dc) power supply, a memory unit, a programmer port, and a radio frequency (rf) antenna and matching circuit.
02/27/14
20140058248

Mr imaging guided therapy system


The invention relates to a thermal treatment applicator (19) for the deposition of thermal energy within tissue of a body (10) of a patient. The applicator (19), comprises: a plurality of rf antennae (20) for radiating a rf electromagnetic field toward the body (10);—a plurality of rf power amplifiers (21) supplying rf signals to the rf antennae (20), wherein each rf power amplifier (21) comprises a transistor and an output matching network (22) transforming the output impedance of the transistor into a low impedance value.
02/27/14
20140055308

Vehicle antenna


An rf antenna system is provided for mounting on a window of a vehicle comprising exterior and interior window mountable portions. The first and second portions include an rf coupling section (4) to inductively couple an rf signal received from antenna (20) and a power coupling section (6) for providing external power to an external amplification portion 52 for amplifying received rf signals.
02/20/14
20140049433

Method for performing rf testing


A method for performing rf testing of an electronic device. An rf antenna is received in a base plate.
02/20/14
20140048211

Plasma processing apparatus


An inductively coupled plasma process can effectively and properly control plasma density distribution within donut-shaped plasma in a processing chamber is provided. In an inductively coupled plasma processing apparatus, a rf antenna 54 disposed above a dielectric window 52 is segmented in a diametrical direction into an inner coil 58, an intermediate coil 60, and an outer coil 62 in order to generate inductively coupled plasma.
02/13/14
20140047567

Method and system for secure configuration of an electronic device via an rfid ic


Embodiments of an electronic device are disclosed. In one embodiment, the electronic device includes a circuit board, a central processing unit (cpu), an rfid ic, and a physically secure communications channel.
02/13/14
20140042337

Inductively coupled plasma ion source with multiple antennas for wide ion beam


A wide ion beam source includes a plurality of rf windows arranged in a predetermined relationship, a single plasma chamber disposed on a first side of the plurality of rf windows, a plurality of rf antennas, each rf antenna of the plurality of rf antennas disposed on a second side of a respective rf window of the plurality of rf windows, the second side being opposite the first side, and a plurality of rf sources, each rf source coupled to a respective rf antenna of the plurality of rf antennas, wherein a difference in frequency of a first rf signal produced by a first rf source coupled to a first rf antenna from that of a second rf signal produced by a second rf source coupled to an rf antenna adjacent to the first rf antenna is greater than 10 khz.. .


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Rf Antenna topics: Rf Antenna, Magnetic Field, Hydrocarbon, Communications, Near Field Communication, Microscopy, Imaging System, Patch Panel, F Connector, Electronic Device, Portable Electronic Device, Microcontroller, Rf Emitter, Object Detection Device, Led Device

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