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Balun

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


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Double balanced mixer
Peregrine Semiconductor Corporation
October 05, 2017 - N°20170288608

A fet based double balanced mixer (dbm) that exhibits good conversion gain and iip3 values and provides improved linearity and wide bandwidth. In one embodiment, a first balun is configured to receive a local oscillator (lo) signal and generate two balanced lo signals that are coupled to two corresponding opposing nodes of a four-node fet ring. A second balun is ...
Circuit
Ampleon Netherlands B.v.
September 28, 2017 - N°20170279430

The disclosure relates to a circuit comprising a balun portion, a balanced side impedance transforming element and an unbalanced side impedance transforming element. The balun portion at least partly transforms the signal between a balanced signal input/output terminal and an unbalanced signal input/output terminal. The impedance transforming elements at least partly alter the impedance presented at the balanced ...
Narrow gauge high strength choked wet tip microwave ablation antenna
Covidien Lp
September 21, 2017 - N°20170265941

An electromagnetic surgical ablation probe having a coaxial feedline and cooling chamber is disclosed. The disclosed probe includes a dipole antenna arrangement having a radiating section, a distal tip coupled to a distal end of the radiating section, and a ring-like balun short, or choke, which may control a radiation pattern of the probe. A conductive tube disposed coaxially around ...
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Marchand balun
Sumitomo Electric Industries, Ltd.
August 31, 2017 - N°20170250668

A marchand balun with a reduced plane size is disclosed. The marchand balun provides two coupling units each having two transmission lines coupled to each other and having a length of λ/8, where λ is a characteristic wavelength of a signal subject to the marchand balun. The marchand balun further provides an additional unit, where two coupling unit ...
Miniaturized dual-polarized base station antenna
Sumitomo Electric Industries, Ltd.
August 31, 2017 - N°20170250462

The present invention discloses a miniaturized dual-polarized base station antenna, comprising a radiation device and a feeding unit. The feeding unit comprises two coaxial cables and two vertical baluns consisting of two conductors, and the radiation device is supported on a reflecting plate. The radiation device consists of four crossed oscillators and four groups of symmetric striplines, and the four ...
Broad band diversity antenna system
Netgear, Inc.
August 17, 2017 - N°20170237174

A broad band diversity antenna system comprises a system of log periodic antennas (lpa) and dipole antennas. Two lpas form a balanced dipole by feeding the back ends of the lpa. The feed is improved by the addition of a balun to ensure rf balance. Because a dipole only requires narrow bandwidth, a simple balun is constructed from coax cable ...
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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 ...
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).
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 ...
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. ...
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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 ...
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 ...
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