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Match Document Document Title
8174810 Method and apparatus for reducing differential mode and common mode reflections in motor drives  
A filter device reduces reflections on power lines from the motor drive to AC motors by providing a differential mode choke in series with a common mode choke both shunted by resistances tailored...
8131226 Multi-band-high-frequency circuit, multi-band high-frequency circuit component and multi-band communication apparatus using same  
A high-frequency circuit comprising a high-frequency switch circuit for switching the three-way connection of an antenna to a transmitting circuit for the first communications system, a receiving...
8110895 Circuit substrate structure and circuit apparatus  
A first wiring layer in a circuit substrate structure is provided with a first inductor and a second inductor. A dielectric layer is provided with a first via and a second via electrically...
8076996 Hybrid balun apparatus  
A hybrid balun apparatus are disclosed. The hybrid balun apparatus can support both the reception mode and the transmission mode and be advantageous for a high level of integration, by replacing...
8072287 Method and system for configurable differential or single-ended signaling in an integrated circuit  
Aspects of a method and system for configurable differential or single-ended signaling in an integrated circuit. In this regard, a balun comprising one or more loops fabricated in a plurality of...
8072290 Method and system for generating quadrature signals utilizing an on-chip transformer  
Aspects of a method and system for generating quadrature signals utilizing an on-chip transformer are provided. In this regard, a pair of phase-quadrature signals may be generated from a...
8058948 Signal splitter with improved transmisson line transformer  
A splitter circuit for use in a CATV network. A signal input communicates with a first balun to supply two signal outputs, wherein the first balun is impedance matched to the impedance of the input...
8049589 Balun circuit manufactured by integrate passive device process  
A Balun circuit manufactured by integrate passive device (IPD) process is provided. The Balun circuit includes a substrate, a first coplanar spiral structure, and a second coplanar spiral...
8035458 Semiconductor device and method of integrating balun and RF coupler on a common substrate  
A semiconductor die has an RF coupler and balun integrated on a common substrate. The RF coupler includes first and second conductive traces formed in close proximity. The RF coupler further...
8026775 Decade bandwidth planar MMIC four port transformer  
A wide bandwidth planar four port MMIC transformer is provided by input diplexers which divide up the incoming signal into a high band and a low band, with the resulting signals coupled to high...
8018297 Balanced-unbalanced conversion circuit  
A balanced-unbalanced conversion circuit includes a first coupling line, an unbalanced terminal connected to the first coupling line, a ground terminal connected to the unbalanced terminal through...
8008986 Apparatuses and methods for coupling a signal to and/or from a cable  
Apparatuses and methods for coupling a signal to and from a twisted pair cable by non-contact coupling with twisted pairs in the twisted pair cable, such that the signal propagates along the cable...
8008987 Balun circuit manufactured by integrate passive device process  
A Balun circuit manufactured by integrate passive device (IPD) process. The Balun circuit includes a substrate, a first coplanar spiral structure, and a second coplanar spiral structure. One end of...
7994873 Balun device  
A balun device including a first to a third inductance elements and a first to a third capacitance elements is provided. The first inductance element has a first end for receiving an input signal...
7978021 Balanced-to-unbalanced transformer and amplifier circuit module  
A balanced-to-unbalanced transformer includes a +90° phase shift circuit, which is disposed between a branch point connected to an unbalanced terminal and a first terminal, and a −90° phase shi...
7956702 Balun  
A balun having a first balanced terminal, a second balanced terminal and an unbalanced terminal, includes a filter unit and a first transmission line. The filter unit is connected to the first...
7952458 Balun with a 1/4 impedance ratio  
A mode-switching transformer with a 1-to-4 impedance ratio having a first planar winding formed in a first conductive level from a first differential mode terminal outside of the winding; a second...
7948331 Thin film balun  
There is provided a thin film balun which, while incorporating a capacitor used to supply a DC bias, allows improvement of various required characteristics. A thin film balun according to the...
7944322 Method and system for flip chip configurable RF front end with an off-chip balun  
Methods and systems for a flip chip configurable RF front end with an off-chip balun may include bonding a balun package to a single integrated circuit (IC) comprising an integrated transmitter and...
7944310 Active balun circuit  
An active balun circuit is provided, which includes an input end, a first and a second output ends, a first and a second transistors, a feedback capacitor, and a current source. The input end...
7915992 Planar, high voltage embedded transformer for analog and digital data transmission  
A transformer includes a flex or printed circuit board consisting of a substrate material having a desired permittivity, and at least one primary winding and at least one secondary winding. Each...
7863998 Method and system for processing signals via directional couplers embedded in an integrated circuit package  
Methods and systems for processing signals via directional couplers embedded in an integrated circuit package are disclosed and may include generating via a directional coupler, one or more output...
7859359 Method and system for a balun embedded in an integrated circuit package  
Methods and systems for a balun embedded in an integrated circuit package are disclosed and may include a multi-layer package bonded to an integrated circuit. The multi-layer package may include an...
7856222 Integrated balun and coupler transformer  
Integrated balun and coupler is described. In one example, a radio frequency (RF) device includes a balun and coupler. The balun includes a first winding and a second winding arranged on a magnetic...
7847653 Wide bandwidth microwave balun  
A wide bandwidth microwave balun utilizes frequency band splitting and two conventional baluns operating in a high frequency band and a low frequency band, which when combined offer a full...
7840191 Baluns for multiple band operation  
A small size, low cost balun is formed on a substrate, such as gallium arsenide, as an integrated passive device. Multiple baluns are formed on a same substrate, allowing multi-band operation. For...
7825746 Integrated balanced-filters  
An integrated balanced-filter which acts as a matching network, a balun and an extracted-pole bandpass filter is disclosed. The balanced-filter includes an unbalanced terminal, a first balanced...
7813501 Midspan power delivery system for reduced emissions  
A midspan power adapter is provided for use in a balanced communication system, such as an Ethernet system, where differential signals are transmitted between two devices. The adapter passes data...
7782155 Circulator type monolithic device  
A monolithic circulator, intended to be connected to an antenna for transmitting and receiving high-frequency signals includes a differential amplifier adapted to provide a signal on an output of...
7777589 Balun transformer  
A balun transformer includes a first conductive pattern having one end provided as an input/output port of an unbalanced signal, a second conductive pattern electromagnetically coupled to the first...
7750434 Circuit substrate structure and circuit apparatus  
A first wiring layer in a circuit substrate structure is provided with a first inductor and a second inductor. A dielectric layer is provided with a first via and a second via electrically...
7746193 Miniature 180 degree hybrid coupler  
A 180° hybrid coupler (100) includes a first transmission line transformer (101) and a second transmission line transformer (102). Each of the first and second transmission line transformers is ...
7692511 Compact balun transformers  
Balun transformers are described wherein multiple transformer loops are implemented in a stacked design with the primary and secondary loops overlying one another. By aligning the loops in a...
7688158 Digitally tuned, integrated baluns with enhanced linearity for multi-band radio applications  
An integrated balun includes a low pass filter and a high pass filter that are formed on a semiconductor chip using tunable reactive elements. The outputs of the low pass filter and the high pass...
7683733 Balun transformer with improved harmonic suppression  
An electronic assembly includes a substrate (66), a balun transformer (42) formed on the substrate (66) and including a first winding (50) and a second winding (52), each having respective first...
7680510 Diversity-switched front end base station transceiver system  
A transceiver system for RF communications in a wireless network includes a transceiver having first and second receivers and a transmitter. The first receiver and transmitter are connected to...
7656262 Balun transformer, mounting structure of balun transformer, and electronic apparatus having built-in mounting structure  
There is provided a balun transformer, in which first to fourth layer coils are stacked and coupled magnetically; one end of each coil of the first to fourth layer coils is grounded; the second and...
7652476 Integrated capacitor shield for balun in MRI receivers  
A balun is included in a magnetic resonance imaging system. The balun conditions electromagnetic signals received from at least one RF receiver coil. The balun includes a balun shield having an...
7646259 Toolless video balun  
A toolless video balun is disclosed to include a bottom cover shell covered with a top cover shell to hold a circuit board and a BNC connector, two metal terminals bonded to the circuit board with...
7629860 Miniaturized wide-band baluns for RF applications  
A wide-band balun device includes a first metallization deposited over a substrate and oriented in a first coil. The first coil extends horizontally across the substrate while maintaining a...
7603091 Hybrid balun apparatus and receiver comprising the same  
The present invention relates to a hybrid balun apparatus and a receiver thereof. The hybrid balun apparatus comprises a passive unit, a first active unit, and a second active unit. The passive...
7592884 High frequency component  
The invention relates to a high frequency component with a substrate constructed of a plurality of dielectric layers and, between them, electrode layers having conducting track structures, in which...
7570129 3D MMIC balun and methods of making the same  
A three dimensional (3D) monolithic integrated circuit (MMIC) balun and methods of making the same are provided. A primary spiral winding is spaced apart from a secondary primary winding by a gap...
7567142 Quasi-balun  
A quasi-balun circuit for receiving an unbalanced input and providing signals to a balanced-input low noise amplifier (LNA) is provided. Notably, this quasi-balun circuit can provide a phase...
7557673 Wide bandwidth microwave balun  
A wide bandwidth microwave balun utilizes frequency band splitting and two conventional baluns operating in a high frequency band and a low frequency band, which when combined offer a full...
7541887 Balun  
A balun includes a first transforming part (30) and a second transforming part (40). The first transforming part includes a first coupled line (32), a first transmission line (34), a second...
7538618 Wideband active balun circuit based on differential amplifier  
Provided is a wideband active balun circuit based on a differential amplifier. The active balun circuit is configured to compensate for unbalance between two differential signals and can be applied...
7535313 Balun  
A balun includes an input line for receiving an unbalanced signal, an output line for receiving the unbalanced signal from the input line and outputting a balanced signal, and a ground. The input...
7528675 Microstrip-type BALUN, broadcast receiving apparatus using the same and method of forming thereof  
Disclosed are a microstrip-type BALUN (BALance to UNbalance transformer), broadcast receiving apparatus using the same, and a method for forming the same. The BALUN includes a board and a...
7526256 Transformer-based multi-band RF front-end architecture  
An apparatus and method for allowing two different signal paths to be coupled to a multi-tap transformer balun. The multi-tap transformer has a first port, which is coupled to a single antenna, and...
Matches 1 - 50 out of 259 1 2 3 4 5 6 >