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Balun patents

      

This page is updated frequently with new Balun-related patent applications.




 Methods and  antenna having dual polarized radiating elements with enhanced heat dissipation patent thumbnailMethods and antenna having dual polarized radiating elements with enhanced heat dissipation
Methods and apparatus for a dual polarized thumbtack radiator having enhanced dissipation. In embodiments, a power divider resistor for a balun is coupled directly to ground plane blocks that provide a rf shield.
Raytheon Company


 Step-down coaxial microwave ablation applicators and methods for manufacturing same patent thumbnailStep-down coaxial microwave ablation applicators and methods for manufacturing same
Microwave ablation applicators and methods for manufacturing the microwave ablation applicators are disclosed. A microwave ablation applicator includes a feed-line segment, a step-down segment, and a radiator base segment.
Covidien Lp


 Radio-frequency apparatus with integrated antenna control and associated methods patent thumbnailRadio-frequency apparatus with integrated antenna control and associated methods
An apparatus includes an integrated circuit (ic), which includes a radio-frequency (rf) circuit to process rf signals, and a balun that has first and second ports. First and second switches are coupled to the second port of the balun.
Silicon Laboratories Inc.


 Phase shift circuit patent thumbnailPhase shift circuit
A phase shift circuit includes a 90° hybrid circuit, variable capacitors, a switch circuit, and a balun circuit. The 90° hybrid circuit includes a high-frequency signal input terminal and a high-frequency signal output terminal.
Murata Manufacturing Co., Ltd.


 Low-profile, broad-bandwidth, dual-polarization dipole radiating element patent thumbnailLow-profile, broad-bandwidth, dual-polarization dipole radiating element
An antenna having a first dipole element configured to emit or receive electromagnetic signals in a first polarization direction wherein the first dipole is fed by a first inclined balun and a second dipole element configured to emit or receive electromagnetic signals in a second polarization direction that is orthogonal to the first polarization direction wherein the second dipole is fed by a second inclined balun.. .

 Multi-octave 180 degree phase bit patent thumbnailMulti-octave 180 degree phase bit
A balun includes: a balanced port; an unbalanced port; and a double-y junction portion between the balanced port and the unbalanced port, the double-y junction portion including: a balanced y junction portion having first and second balanced stubs; and an unbalanced y junction portion having first and second unbalanced stubs, wherein at least one of the first balanced stub, the second balanced stub, the first unbalanced stub, and the second unbalanced stub includes a switch.. .
Raytheon Company


 Apparatus for and  programmable matching network for multiple signal types patent thumbnailApparatus for and programmable matching network for multiple signal types
An apparatus and method are provided. The apparatus includes a multiplexer, including a first input, a second input, a third input, and an output; a first transistor, including a gate, a first terminal, and a second terminal; a first variable capacitor, including a first terminal, a second terminal, and an input; a first inductor, including a first terminal and a second terminal; a second transistor, including a gate, a first terminal, and a second terminal; a second inductor mutually coupled to the first inductor, including a first terminal and a second terminal; a balun-bias switch, including a first input, a second input, a third input, and an output; a second capacitor, including a first terminal, and a second terminal; and a port-switch, including a first input, a second input, a third input, and an output..
Samsung Electronics Co., Ltd.


 Balun for trapping rf current on a transmission line patent thumbnailBalun for trapping rf current on a transmission line
Apparatus and method for a radially attachable rf trap attached from a side to a shielded rf cable. In some embodiments, the rf trap creates a high impedance on the outer shield of the rf cable at a frequency of rf signals carried on at least one inner conductor of the cable.
Life Services Llc


 Tunable electronic circuit which converts balanced signals to unbalanced signals patent thumbnailTunable electronic circuit which converts balanced signals to unbalanced signals
balun with tunable bandpass filter characteristic includes first, second and third coupling elements disposed on a substrate. The first and second coupling elements are arranged on the substrate relative to the third coupling element to couple two identical but out of phase signals to form a corresponding unbalanced signal in the third coupling element.
Harris Corporation


 Power amplifier cell patent thumbnailPower amplifier cell
A power amplifier cell (401) comprising: a first power amplifier (410), a second power amplifier (416) and a balun (422). The balun (422) comprising: a first transmission line (430); a second transmission line (432); a third transmission line (434); a fourth transmission line (436); and a biasing circuit (438) connected between (i) a reference terminal, and (ii) a second end of the second transmission line and a second end of the fourth transmission line..
Ampleon Netherlands B.v.


Compact wideband dual polarized dipole

A compact wideband dual polarized dipole antenna assembly using a meander line component. The antenna assembly includes a pair of open stub baluns with a radiating dual polarized top printed circuit board (pcb) that is perpendicular to the baluns.
Amphenol Corporation

Microwave energy-delivery device and system

A microwave ablation device including a cable assembly configured to connect a microwave ablation device to an energy source and a feedline in electrical communication with the cable assembly. The microwave ablation device further includes a balun on an outer conductor of the feedline, and a temperature sensor on the balun sensing the temperature of the balun..
Covidien Lp

Metamaterial substrate for circuit design

This invention enables frequency selective surface (“fss”) and artificial magnetic conductor (“amc”) which exhibits electromagnetic band gap (“ebg”) in any of the substrate's layer from a small and thin systems and sub-systems in package to a large-format pcbs. The metamaterial substrate may be integrated with electronic circuit components or buried in pcbs for circuit designs capable of transmitting, receiving and reflecting electromagnetic energy, altering electromagnetic properties of natural circuit materials, enhancing electrical characteristics of electrical components (such as filters, antennas, baluns, power dividers, transmission lines, amplifiers, power regulators, and printed circuits elements) in systems and sub-systems circuit designs.
Transsip, Inc.

Wideband rf device

An rf device includes an impedance transformation circuit having a plurality of first rf couplers. Each first rf coupler includes a first portion of a first transmission line winding disposed on at least one first printed circuit board (pcb) and is configured to be electromagnetically coupled to a first portion of a second transmission line winding disposed on at least one second printed circuit board (pcb).
Anaren, Inc.

Balun transformer

A balun includes a dielectric layer having first and second sides, an electrically conductive plate on the second side of the dielectric layer, a first electrically conductive line on the first side and comprising a first end electrically connected to a first terminal and a second end, a second electrically conductive line on the second side and comprising a third end electrically coupled to a second terminal and a fourth end connected to an unbalanced terminal and a micro strip line comprising a fifth end electrically connected to the third end and a sixth end. The first electrically conductive line overlaps the second electrically conductive line.
Freescale Semiconductor, Inc.

Architectures and devices related to doherty amplifiers

An amplifier architecture can include an input circuit for splitting a signal into first and second portions, and carrier and peaking amplification paths for receiving the first and second portions. The architecture can further include an output circuit having a balun transformer circuit with first and second coils, with the first coil between first and second ports, the second coil between third and fourth ports, the first and third ports coupled by a first capacitance, and the second and fourth ports coupled by a second capacitance.
Skyworks Solutions, Inc.

Tunable balun

A system includes a balun, a power monitoring circuit, a first circuit, and a second circuit. The balun includes a first inductor to receive an input and a second inductor to couple the input to a load.
Marvell World Trade Ltd.

Complementary metal oxide semiconductor differential antenna transmit-receive switches with power combining circuitry for orthogonal frequency-division multiplexing systems

A radio frequency (rf) transmit-receive switch has an antenna port, first and second transmit differential ports and first and second receive differential ports. Transmit transistor switches are connected to the transmit differential ports.
Skyworks Solutions, Inc.

Balunless test fixture

A test fixture and method of its use are disclosed. The test fixture includes a test fixture frame including a first test fixture mount having a first test head mounted thereon, the first test head slidable along a first axis, and a second test fixture mount having a second test head mounted thereon that is slidable along a second axis perpendicular to the first axis.
Tyco Electronics Uk Ltd.

Multimode operation for differential power amplifiers

An rf circuit for wireless devices comprises a single differential power amplifier and an impedance balancing circuit for each frequency band. The impedance balancing circuit serves both to provide an appropriate impedance at the output of the amplifier as the operating mode of the device changes, and also transforms the differential output of the amplifier to a single-ended output.
Acco

Low-noise amplifier having high linearity for multi-band

The present invention discloses a low-noise amplifier having a characteristic of high linearity for multi-band. Embodiments of the present invention is to provide a low-noise amplifier (lna), which realizes a balun function and a preamplifier function of mixer in the low-noise amplifier (lna), and minimizes the factors reducing the linearity between the low-noise amplifier (lna) and the mixer..
Fci Inc

Dipole antenna with integrated balun

The invention relates to a dipole antenna including first and second radiating elements electrically connected via a transition, said first and second elements being associated with a frequency f1 in a frequency band, a feeding point the feeding point and the reference point being respectively connected to a feeding conductor and a ground conductor of a feeding line, and a balun. The balun is formed by a slot arranged in the first radiating element, said slot having a short circuit at a first end and an open circuit at a second end next to the transition.
Thomson Licensing

Multilayer electronic component

A multilayer electronic component includes a stack and a balun. The stack includes a plurality of stacked dielectric layers and conductor layers.
Tdk Corporation

Systems, apparatuses, and methods for generating and/or utilizing scalar-longitudinal waves

Scalar-longitudinal waves (slws) may be transmitted and/or received. A first apparatus configured to transmit and/or receive slws may include a linear first conductor configured to operate as a linear monopole antenna at a first operating frequency.
Gradient Dynamics Llc

Systems, apparatuses, and methods for generating and/or utilizing scalar-longitudinal waves

Scalar-longitudinal waves (slws) may be transmitted and/or received. A first apparatus configured to transmit and/or receive slws may include a linear first conductor configured to operate as a linear monopole antenna at a first operating frequency.
Gradient Dynamics Llc

Dipole antenna with micro strip line stub feed

Various embodiments are described that relate to a line feed and a dipole element. The line feed can be supplied directly with a current without a balun.
The Government Of The United States, As Represented By The Secretary Of The Army

Active balun for wideband applications

An active balun uses two inverters to produce a differential output from a single-ended input. A current source supplies current to both inverters and a current sink sinks current from both inverters.
Qualcomm Incorporated

Method and system for winding transformers to maximize symmetry of the primary and secondary coils

Methods and systems for winding transformers to maximize symmetry of the primary and secondary coils may comprise a transformer with a primary coil and a secondary coil. A first portion of the transformer has at least one turn around a core, and includes twisted pair sections of the primary coil and secondary coil.
Maxlinear, Inc.

Active balun circuit and transformer

An active balun circuit includes a cg transistor having a source terminal thereof connected to an input terminal and a gate terminal thereof grounded, a cs transistor having a gate terminal thereof connected to the input terminal and a source terminal thereof grounded, an asymmetrical transformer, a first output terminal, and a second output terminal. The asymmetrical transformer includes a primary coil and a secondary coil.
Mitsubishi Electric Corporation

Electrical energy storage apparatus having a balun

The present invention relates to an electrical energy storage apparatus having a plurality of electrical storage cells connected in series and to an inductive balun for balancing the storage cell voltages, wherein the balun has a balancer transformer having separate single coils for the storage cells and has a respective electric switch for each storage cell. Provision is made in accordance with the invention that the coils of the balancer transformer are connected to a pole of the respective storage cell via a respective at least one inductance and a switch connected to the named inductance, with the switch associated with one respective storage cell being connected via a diode to a pole of a storage cell respective arranged upstream or downstream..
Liebherr-components Biberach Gmbh

Frequency tunable balun

Systems and method are provided for making a balun's operational bandwidth tunable around multiple distinct center frequencies by using switches to vary the balun's dimensions. An embodiment of the present disclosure uses a pass gate structure for the switches, and the switches connect additional lengths of line in or out of the balun to change its frequency response.
The Government Of The United States Of America, As Represented By The Secretary Of The Navy

Wideband doherty amplifier circuit with integrated transformer line balun

A doherty amplifier circuit includes an rf input terminal, an rf output terminal, a main amplifier having a first input terminal and a first output driving terminal, and a peaking amplifier having a second input terminal and a second output driving terminal. An output combining network is configured to feed output current from the first and second output driving terminals into a summing node.
Infineon Technologies Ag

Balun

The present disclosure relates to a balun suitable for realising a wideband transition in the radio frequency band from an unbalanced transmission line to a balanced transmission line. The balun comprises an input terminal; a two conductor output terminal; and a layered structure comprising a number of conducting layers and dielectric layers alternatingly arranged on top of each other.
Saab Ab

Dual-band printed omnidirectional antenna

A microwave antenna assembly is printed on a substrate with a first face and an opposing second face. The assembly includes at least one antenna disposed on the front face of the substrate and a balun disposed on the rear face of the substrate.
Cisco Technology, Inc.

Front end circuit

A front end circuit includes a switch including a common terminal and a plurality of individual terminals, in which at least two kinds of reception signals of different frequency bands are input to the common terminal, and in which one of the at least two kinds of reception signals is output to an individual terminal selected from the plurality of individual terminals, and in which a non-selected terminal is grounded, and a balun including a first terminal and a second terminal defining unbalanced ports as well as a third terminal and a fourth terminal defining balanced ports. The first individual terminal of the switch is indirectly connected to the first terminal of the balun and the second individual terminal of the switch is indirectly connected to the second terminal of the balun.
Murata Manufacturing Co., Ltd.

Integrated quantized inductor and fabrication method thereof

The present invention relates to rfic process design kits and microelectronics device technologies. More particularly, the invention relates to inductors, transformers, resonators, and electromagnetic (em) guard rings implemented in one chip.

Transconductance optimization using feedback-balun-transformer with inductance degeneration combinations

Disclosed are apparatuses and methods to overcome technology limitations to achieve linearity and efficiency performance suitable for practical wireless communications systems. In an embodiment, an amplifier is provided that superimposes the transconductance from a common source amplifier with inductor degeneration with the transconductance from a common source amplifier without degeneration.
Futurewei Technologies, Inc.

Devices with s-shaped balun segment and related methods

An electronic device may include a wireless circuit, and a coaxial cable device having an s-shaped balun segment coupled to the wireless circuit, and an antenna segment coupled to the s-shaped balun segment. The s-shaped balun segment may include a first inner conductor segment, and a first outer conductor segment surrounding the first inner conductor segment.
Harris Corporation

Wide-band antenna

A multiple-input multiple-output antenna is provided. The antenna may include, but is not limited to, at least one first dipole antenna including a first dipole arm, a second dipole arm, and a balun, the balun including a first bent conductive and a second bent conductive, and at least one second dipole antenna, the at least one second dipole antenna including a third dipole arm, a fourth dipole arm, a u-shaped balun galvantically coupled to the third dipole arm and the fourth dipole arm, a first conductive element galvanically isolated from the third dipole arm, the fourth dipole arm and the u-shaped balun, the first conductive element configured to capacitively couple to the third and fourth dipole arms, and a second conductive element galvanically connected to the u-shaped balun, the second conductive element configured to capacitively couple to the third dipole arm..
Galtronics Corporation Ltd.

Ltcc balun filter using two out-of-phase filtering circuits

The invention presents a ltcc balun filter using two out-of-phase filtering circuits. The ltcc balun filter is comprised of three half-wavelength resonators and grounds which are located on fourteen metal layers.
South China University Of Technology

Electrostatic discharge protection for a balun

A die is mounted in an integrated circuit package. The die includes a balun circuit and an electrostatic discharge (esd) circuit coupled to a ground of the integrated circuit die.
Silicon Laboratories Inc.

Circuits, devices and methods related to combiners for doherty power amplifiers

Circuits, devices and methods related to combiners for doherty power amplifiers. A signal combiner can include a balun transformer circuit having a first coil and a second coil.
Skyworks Solutions, Inc.

Balun device for uhf signals

A balun device for uhf signals includes two conductive connection pads, a printed conductive track and a conductive ground pattern that are formed on a dielectric base plate. The conductive connection pads are connectable respectively with a pair of first signal lines for a pair of differential signals.
Trans Electric Co., Ltd.

Electronic device with shared antenna structures and balun

An electronic device may be provided with shared antenna structures that can be used to form both a near-field-communications antenna such as a loop antenna and a non-near-field communications antenna such as an inverted-f antenna. The antenna structures may include conductive structures such as metal traces on printed circuits or other dielectric substrates, internal metal housing structures, or other conductive electronic device housing structures.
Apple Inc.

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.
Harris Corporation

Modified vivaldi antenna with dipole excitation mode

Systems and techniques are provided for a modified vivaldi antenna with dipole excitation mode. An antenna may include a ground plane and a modified vivaldi antenna.



Balun topics:
  • Differential Signal
  • Magnetic Field
  • Circuit Board
  • Coaxial Cable
  • High Speed
  • Transceiver
  • Control Unit
  • Protection Circuit
  • Magnetic Resonance Imaging
  • Modulation
  • Leaky Wave Antenna
  • Amplitude Modulation
  • Antenna Array
  • Acoustic Wave
  • Transmission Path


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    This listing is a sample listing of patent applications related to Balun for is only meant as a recent sample of applications filed, not a comprehensive history. There may be associated servicemarks and trademarks related to these patents. Please check with patent attorney if you need further assistance or plan to use for business purposes. This patent data is also published to the public by the USPTO and available for free on their website. Note that there may be alternative spellings for Balun with additional patents listed. Browse our RSS directory or Search for other possible listings.


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