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Balun

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


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Balun circuit
Synergy Microwave Corporation
June 14, 2018 - N°20180166764

The present disclosure is directed to a balun circuit adapted to operate at a frequency of between about 5 ghz to about 110 ghz. The balun circuit includes first and second output striplines and an input stripline formed on a first surface of the substrate, and a slotline formed on a second surface of the substrate opposite the first surface.
Combining uplink radio frequency (rf) communications signals in a remote unit in a wireless distribution ...
Corning Optical Communications Wireless Ltd
June 07, 2018 - N°20180159628

Embodiments of the disclosure relate to combining uplink radio frequency (rf) communications signals in a remote unit in a wireless distribution system (wds) using a differential mixer. A remote unit in a wds receives a first uplink rf communications signal(s) and a second uplink rf communications signal(s).
High-efficiency frequency doubler with a compensated transformer-based input balun
The Regents Of The University Of California
June 07, 2018 - N°20180159516

The disclosed embodiments relate to the design of a high-speed frequency doubler circuit. During operation, the circuit uses a transformer-based balun to convert a single-ended input signal into a differential signal, wherein the transformer-based balun includes a transformer with a primary coil, which receives the single-ended input signal, and a secondary coil, which produces the differential signal.
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Apparatus and methods for low noise amplifiers
Skyworks Solutions, Inc.
May 24, 2018 - N°20180145648

Apparatus and methods for low noise amplifiers (lnas) are provided herein. In certain configurations, an lna includes a gain stage and a bypass stage electrically connected in parallel with one another between an input and an output.
Doherty power amplifier combiner with tunable impedance termination circuit
Skyworks Solutions, Inc.
May 24, 2018 - N°20180145636

Doherty power amplifier combiner with tunable impedance termination circuit. A signal combiner can include a balun transformer circuit having a first coil and a second coil.
Antenna structures and associated methods for construction and use
Netgear, Inc.
May 17, 2018 - N°20180138595

Disclosed are improved antenna structures, systems, and methods of manufacturing. In an embodiment, low-cost internal 2g/5g antennas have flat metal dipole construction, which can include a stiffener.
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Coupled-line balun with common-mode nulling
Analog Devices, Inc.
May 03, 2018 - N°20180123551

Coupled-line baluns with common-mode compensation are provided herein. In certain configurations, a series resistor-inductor (rl) network is connected to ports of a coupled-line balun to null the common-mode transmission coefficient at a desired frequency.
Balun structure
Semiconductor Manufacturing International (beijing) Corporation
May 03, 2018 - N°20180123550

A balun structure is provided. The balun structure includes a substrate, a first coil structure and a second coil structure having a spiral shape and on the substrate.
Directional antenna for wireless motor connection
Nidec Motor Corporation
May 03, 2018 - N°20180123231

An antenna assembly comprises a substrate, an impedance matching network, and a driven antenna element. The substrate includes an insulating layer and a first electrically conductive layer disposed on a top surface of the insulating layer.
Radiation apparatus
Huawei Technologies Co., Ltd.
May 03, 2018 - N°20180123226

The present application discloses a radiation apparatus, the apparatus comprises at least four radiators, two l-shaped feeding sheets, and a balun structure, the balun structure consists of four l-shaped structures formed by eight conductive plates; and each l-shaped structure is formed by two conductive plates arranged at approximately 90 degrees, each l-shaped structure is electrically connected to one radiator at one ...
Balun
Tdk Corporation
May 03, 2018 - N°20180123202

A balun includes an unbalanced port, a first balanced port, a second balanced port, a main line, a subline, a capacitor, and an impedance matching section. The subline is configured to be electromagnetically coupled to the main line.
Multiple power transmitter for rf receiver or the like
Silicon Laboratories, Inc.
April 05, 2018 - N°20180097531

In one form, a radio frequency (rf) transmitter includes an rf signal source, a balanced/unbalanced transformer (balun), and first and second amplification circuits. The balun has a primary side adapted to be coupled to an antenna, and a secondary side.
Quasi-differential rf power amplifier with high level of harmonics rejection
Skyworks Solutions, Inc.
March 29, 2018 - N°20180091114

A quasi-differential amplifier with an input port and an output port. The amplifier has a phase shifter network with a first port connected to the input port, a second port, and a third port.
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Bandwidth increase method for differential passive elements
International Business Machines Corporation
March 29, 2018 - N°20180090806

This invention relates to assemblies and processes for increasing the bandwidth of differential passive elements. The use of a floating plane in differential transmission lines is disclosed.
Waveguide connector with slot launcher
March 29, 2018 - N°20180090803

The systems and methods described herein provide a traveling wave launcher system physically and communicably coupled to a semiconductor package and to a waveguide. The traveling wave launcher system includes a slot-line signal converter and a tapered slot launcher.
Up-down zigzag additive spiral antenna
Lockheed Martin Corporation
March 22, 2018 - N°20180083350

A spiral antenna apparatus, which may comprise an antenna element disposed in two spiral arms in a vertical zigzag pattern. The apparatus may comprise an electromagnetic band gap cavity comprising: a ground plane, one or more layers of conductive patches, at least one pillar extending between the ground plane and a top layer of the one or more layers, and ...
Pluggable module with coaxial connector interface
Methode Electronics, Inc.
March 15, 2018 - N°20180076588

A pluggable module comprising a housing having a first end and second end, an edge connector disposed at the first end, an f-type coaxial connector at the second end and a release lever including a stamped body that is symmetrical about a centerline bisecting the length of the body. The pluggable module may comprise a miniature balun disposed within the ...
High frequency simultaneous metrics antenna (hf-simant)
Spawar Systems Center Pacific
March 15, 2018 - N°20180076523

An antenna comprising: a loop made of conductive material; two baluns connected to, and intersecting, opposing sides of the loop, wherein each balun has an output; a 180° hybrid coupler having two input ports, a sum output port, and a delta output port, wherein the two input ports are connected to the outputs of the baluns; a first low noise ...
Switchable transformer-based balun
Analog Devices Global
March 01, 2018 - N°20180062607

A transformer-based balun circuit s disclosed herein. The balun can be implemented using a spiral transformer, where primary and secondary transformer windings can be inductively coupled and can be implemented on the same metal layer (or different metal layers, e.g.
Double balanced mixer
Peregrine Semiconductor Corporation
March 01, 2018 - N°20180062576

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.
Digital variable capacitance circuit, resonant circuit, amplification circuit, and transmitter
Renesas Electronics Corporation
February 22, 2018 - N°20180054222

A radio frequency integrated circuit includes an amplification circuit for outputting a radio frequency signal to an antenna, a balun including a first terminal, a second terminal, a third terminal, and a fourth terminal, and a variable capacitance circuit including a fifth terminal and a sixth terminal. The first terminal and the second terminal of the balun receive output signals ...
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