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Balun

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


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Antenna structure for distributed antenna system
Commscope Technologies Llc
July 20, 2017 - N°20170207538

One embodiment discloses an antenna structure. An antenna structure comprises: a transmit antenna element comprising a plurality of transmit antenna sub-elements; a receive antenna element comprising a plurality of receive antenna sub-elements, wherein the transmit antenna element and the receive antenna element are orthogonally-polarized with respect to each other; a ground plane defining a reflector for the antenna structure; at ...
Conformable antenna
Galtronics Corporation Ltd.
July 13, 2017 - N°20170201027

A polymorphic antenna, including a metallic template configurable in at least first and second possible different three-dimensional shapes, the antenna, when configured in the at least first and second different three-dimensional shapes, having a common antenna feed point, a common balun coupled to the common antenna feed point; and a common dipole coupled to the common antenna feed point and ...
Body worn antenna
Check-cap Ltd.
July 13, 2017 - N°20170196480

A wearable antenna for communicating between an external transceiver and a capsule inside the gastrointestinal tract of a user, including a printed circuit board for forming a conducting pattern on a first face and on a second face of the printed circuit board; a first conducting pattern on the first face of the printed circuit board, including: a) an almost ...
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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).
Double-balanced field-effect transistor mixer with direct single-ended intermediate frequency outputs
Linear Technology Corporation
May 18, 2017 - N°20170141730

A double-balanced fet mixer may include: single-ended rf port that receives or delivers single-ended rf signal; rf balun that converts the received single-ended rf signal into differential rf signal or generates delivered single-ended rf signal from received differential rf signal; local oscillator input port receives local oscillator signal; direct if port receives or delivers an if signal; and at least ...
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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 ...
Methods and apparatus for antenna having dual polarized radiating elements with enhanced heat dissipation
Raytheon Company
April 13, 2017 - N°20170104277

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. An attachment mechanism, such as a screw secures the thumbtack assembly to an aperture plate and provides thermal and electrical connection.
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 ...
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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 ...
Tunable electronic circuit which converts balanced signals to unbalanced signals
Harris Corporation
March 16, 2017 - N°20170077894

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. A plurality of tunable resonator elements ...
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 ...
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