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Balun patents

      

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




 Metamaterial substrate for circuit design patent thumbnailMetamaterial 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 patent thumbnailWideband 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 patent thumbnailBalun 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 patent thumbnailArchitectures 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 patent thumbnailTunable 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 patent thumbnailComplementary 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 patent thumbnailBalunless 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 patent thumbnailMultimode 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 patent thumbnailLow-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 patent thumbnailDipole 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.

High-selectivity low-loss duplexer

A high-selectivity low-loss duplexing system includes a first duplexer having a first port, a second port, a transmit port and a receive port. A second duplexer has a third port, a fourth port, an inverted transmit port and the receive port.

Output combination of transistors in an mrt radio-frequency power amplifier

A power electronic unit for an amplifier of an imaging magnetic resonance tomography (mrt) system is provided. The power electronic unit includes at least one printed circuit board, on which a plurality of transistors are arranged.

Systems and methods related to linear and efficient broadband power amplifiers

Systems and methods related to linear and efficient broadband power amplifiers. A power amplifier (pa) system can include an input circuit configured to receive a radio-frequency (rf) signal and split the rf signal into a first portion and a second portion.
Skyworks Solutions, Inc.

Balun filter and radio-frequency system

A balun filter utilized for a radio-frequency (rf) system includes a first terminal coupled to an antenna of the rf system for delivering an rf signal; a differential port has a second terminal and a third terminal for delivering a differential signal; a band pass filter coupled between the first terminal and the differential port has a plurality of resonators, each including a surrounding line substantially surrounding an area and forming a loophole on a side of the each resonator; and at least a line segment connected to the surrounding line and disposed separately within the area surrounded by the surrounding line.. .
Wistron Neweb Corporation

Dual-band filter and operating method therof

A dual-band filter and method thereof include a diplexer configured to process one of a first band signal and a second band signal, which includes a frequency band different from a frequency band of the first band signal, and block the other of the first band signal and the second band signal. A balun is configured to convert the first band signal from a differential signal to a single signal in response to the first band signal being transmitted, and convert the first band signal from a single signal to a differential signal in response to the first band signal being received.
Samsung Electro-mechanics Co., Ltd.

Balun transformer

A balun transformer includes an input terminal into which an unbalanced signal is input, a converter that includes at least a first signal line connected to the input terminal and that converts the unbalanced signal into a balanced signal, a first output terminal connected to the first signal line, a second output terminal from which the balanced signal is output, the balanced signal being also output from the first output terminal, and a capacitor connected between the input terminal and the second output terminal.. .
Murata Manufacturing Co., Ltd.

Baluns for rf signal conversion and impedance matching

A magnetically-coupled structure is integrated with an integrated circuit in back end-of-line (beol) digital cmos fabrication processes. A differential primary (or secondary) coil is formed by patterning a thick copper (cu) metal layer, and a single-ended secondary (or primary) coil is formed by patterning a thick aluminum (al) top metal bonding layer.
Texas Instruments Incorporated

Method and balun for trapping rf current on a transmission line after installation

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

Multi-band amplifier

A multi-band amplifier may operate in a first frequency band and a second frequency band. The multi-band amplifier may include a first amplifier, a second amplifier, and a coupler.
Qualcomm Incorporated

Electrostatic discharge protection for a transformer balun

A balun includes an input coil and an output coil with first and second outputs that vary during normal operation. The output coil has a center point connection that remains substantially constant during normal operation.
Silicon Laboratories Inc.

Balun for converting between multiple differential signal pairs and a single-ended signal

A balun includes a first transmission line and a number (n) of second transmission lines. The first transmission line includes an end terminal for receiving or outputting a signal with a target wavelength, and having a length of half the target wavelength.
National Chi Nan University



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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