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Balun

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


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Electrosurgical devices with balun structure for air exposure of antenna radiating section and method of ...
Covidien Lp
June 22, 2017 - N°20170172656

An energy applicator for directing energy to tissue includes a feedline having an inner conductor, an outer conductor and a dielectric material disposed therebetween, and an antenna assembly having a radiating section operably coupled to the feedline. The energy applicator also includes a first balun structure configured to substantially confine energy to the radiating section when the energy applicator is ...
Complex circuit, circuit device, circuit board, and communication device
Covidien Lp
June 15, 2017 - N°20170170800

Solution: a complex circuit includes a first diplexer that passes through the normal-phase signals of balanced signals and a second diplexer that passes through the reverse-phase signals of the balanced signals. A balun includes a low frequency band first balun element and a high frequency band second balun element. The first balun element and the second balun element respectively include ...
Printed circuit integrated broadband directional bridge
Vayyar Imaging Ltd.
June 08, 2017 - N°20170162926

There are provided methods and devices for realizing a broadband directional bridge, and a network analyzer test set based on the directional bridge structure. In some embodiments the directional bridge comprises a resistive bridge and a balun. The balun further comprises a transmission line which is surrounded by ferrite material and is implemented on a main printed circuit board (pcb).
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Balanced antenna system
Smart Antenna Technologies Ltd
May 18, 2017 - N°20170141468

The invention relates to a balanced antenna system comprising a radiator connected via a matching circuit to a balun. In certain embodiments, the radiator comprises a first radiating element and a second radiating element and the matching circuit comprises a first impedance-matching circuit connected to the first radiating element and a second impedance-matching circuit connected to the second radiating element. ...
Superluminal antenna
Los Alamos National Secruity, Llc.
May 11, 2017 - N°20170133768

A superluminal antenna element integrates a balun element to better impedance match an input cable or waveguide to a dielectric radiator element, thus preventing stray reflections and consequent undesirable radiation. For example, a dielectric housing material can be used that has a cutout area. A cable can extend into the cutout area. A triangular conductor can function as an impedance ...
Inductive downhole sensor with center tap for common mode rejection
Baker Hughes Incorporated
May 11, 2017 - N°20170131427

Systems, methods, and devices for evaluation of an earth formation intersected by a borehole using a logging tool. Methods include generating an excitation in the formation with an electromagnetic (em) signal from a transmitter assembly at at least one frequency; making em measurements using an em tool on a tool string in the borehole by receiving a signal at at ...
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Step-down coaxial microwave ablation applicators and methods for manufacturing same
Covidien Lp
April 13, 2017 - N°20170100194

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. The feed-line segment includes a first inner conductor, a first dielectric disposed on the first inner conductor, and a first outer conductor disposed on the first dielectric. The step-down segment includes ...
Radio-frequency apparatus with integrated antenna control and associated methods
Silicon Laboratories Inc.
March 30, 2017 - N°20170093032

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. The first port of the balun is coupled to the rf circuit.
Phase shift circuit
Murata Manufacturing Co., Ltd.
March 23, 2017 - N°20170085242

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. The variable capacitors are respectively connected to between first and second variable capacitor connection terminals of the 90° hybrid circuit and the ground. The balun circuit ...
Low-profile, broad-bandwidth, dual-polarization dipole radiating element
Murata Manufacturing Co., Ltd.
March 23, 2017 - N°20170085009

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 ...
Multi-octave 180 degree phase bit
Raytheon Company
March 23, 2017 - N°20170084978

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 ...
Apparatus for and method of programmable matching network for multiple signal types
Samsung Electronics Co., Ltd.
March 16, 2017 - N°20170077904

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 ...
Balun for trapping rf current on a transmission line
Life Services Llc
March 16, 2017 - N°20170077895

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. In some embodiments, an rf-trap apparatus for blocking ...
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Power amplifier cell
Ampleon Netherlands B.v.
March 16, 2017 - N°20170077873

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 ...
Compact wideband dual polarized dipole
Amphenol Corporation
March 02, 2017 - N°20170062940

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. The radiating dual polarized top pcb includes the meander line component. The compact dipole solution, through the use of the meander ...
Microwave energy-delivery device and system
Covidien Lp
March 02, 2017 - N°20170056109

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.
Metamaterial substrate for circuit design
Transsip, Inc.
February 02, 2017 - N°20170033468

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 ...
Wideband rf device
Anaren, Inc.
January 26, 2017 - N°20170026201

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 ...
Balun transformer
Freescale Semiconductor, Inc.
January 26, 2017 - N°20170026023

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 ...
Architectures and devices related to doherty amplifiers
Skyworks Solutions, Inc.
January 26, 2017 - N°20170026002

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 ...
Tunable balun
Marvell World Trade Ltd.
January 12, 2017 - N°20170012652

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. The power monitoring circuit is configured to monitor an amount of power being delivered to the load when the input is coupled to ...
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