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7885797 Method for production of a system for representation of an electrical network, and use of the method  
One embodiment of the present invention is a method for producing a system for describing an electrical network. An output signal of the electrical network is sampled at a frequency that...
7884668 Integrated doherty type amplifier arrangement with high power efficiency  
The present invention relates to an integrated Doherty type amplifier arrangement and an amplifying method for such an arrangement, wherein a lumped element hybrid power divider (12) is provided...
7884667 Pulse area modulation and high-efficiency linear power amplifier system using the same  
A linear power amplifier system using pulse area modulation includes: an envelop/phase decomposer for decomposing an input signal into an envelop signal and a phase signal; a pulse area modulator...
7880547 Systems and methods for power amplifiers with voltage boosting multi-primary transformers  
Systems and methods may be provided for a power amplifier system. The systems and methods may include a plurality of power amplifiers, where each power amplifier includes at least one output port....
7880546 Amplifier and the method thereof  
An amplifier amplifying an input signal and the method thereof. The amplifier comprises first and second transconductor circuits. The first transconductor circuit, coupled to the first transistor,...
7876159 Power amplifier circuit for multi-frequencies and multi-modes and method for operating the same  
A multi-frequency and multi-mode power amplifier is provided. The amplifier has a carrier power amplifier and a peaking power amplifier. The carrier power amplifier receives a first signal and...
7876153 Transconductor circuit  
A transconductor circuit, particularly according to the multi-tanh principle, having a first input node and a second input node, a first differential amplifier coupled to the first and second...
7876160 Multi-mode high efficiency linear power amplifier  
A power amplifier includes a plurality of amplification paths in which at least one amplification path is selectively enabled and disabled, wherein each amplification path includes an output...
7868700 Method and apparatus for reducing current consumption of MIMO systems  
Apparatus and method for reducing the current consumption and increasing the efficiency of a MIMO system, consisting of one or more RF power amplifiers (PAs) and that is required to provide a...
7847630 Amplifier  
There is provided an amplifier for combining outputs of a plurality of amplifying circuits to generate an amplifier output. The amplifier includes a first amplifying circuit for operating a first...
7847636 Low noise amplifier for ultra wide band  
A low noise amplifier (LNA) for ultra wide band receives and amplifies identical RF signals in different frequency bands, and includes more than one pair of narrow band LNAs coupled in parallel,...
7843269 Cascode-cascade power amplifier assembly  
A cascode-cascade power amplifier assembly is provided. Which includes a first common-source amplifier, a second common-source amplifier, a phase shift matching network coupled to the first...
7843270 Low noise amplifier circuit with noise cancellation and increased gain  
A low noise amplifier circuit including a front end voltage sensing and matching amplification circuit, a gain circuit and a combining circuit is disclosed. The front end voltage sensing and...
7843264 Differential amplifier with accurate input offset voltage  
An amplifier with accurate input offset voltage is described. In one design, the amplifier includes first and second unbalanced differential pairs. The first unbalanced differential pair receives...
7839216 RF power amplifiers with linearization  
Designs and techniques associated with power amplifiers for amplifying RF signals to provide variable power amplification and improved linearity in various RF amplification circuits, including...
7834686 Power amplifier  
Methods to implement power control in a digital power amplifier are described.
7834700 Radio frequency power amplifier  
A radio frequency signal is input to the bases of transistors via respective capacitors, is amplified, and is output from the collectors of the transistors. The emitter of each transistor is...
7825731 RF amplifying device  
An RF amplifying device includes a transmission line transformer coupled to an output electrode of a power transistor for generating transmission power to be fed to an antenna. The transmission...
7822393 Transmission apparatus and communication apparatus  
The transmission apparatus according to the present invention can reduce transmission output noise leaking into the receiving apparatus even when the transmission apparatus is applied to wireless...
7813515 Multi-channel power amplifier with channels independently self-configuring to a bridge or single-ended output, particularly for audio applications  
A multi-channel power amplifier for driving a plurality of loads, each associated with a respective channel, each channel comprising a pair of operational amplifiers, first and second, one...
7804362 Distributed amplifier with negative feedback  
A distributed amplifier may include an input transmission line for receiving on an input end an input signal, and an output transmission line for outputting on an output end an output signal. A...
7804358 Device with shared power amplifiers, for use in a wireless telecommunications system  
A device with shared power amplifiers for use in a wireless telecommunication System. A plurality of input signals are tapered to alter the phase and/or amplitude distribution between the signals...
7800442 Output networks in combination with LINC technique  
The present invention relates to balanced power amplifier network in combination with outphasing techniques such as Chireix. The object of the present invention is to provide a solution to the...
7800448 Doherty amplifier  
An integrated Doherty amplifier structure comprises an input bond pad (IBP), and an output bond pad (OBP). A first transistor (T1) forms the peak amplifier stage of the Doherty amplifier and has a...
7795966 Balanced amplifier with protection circuit  
According to an exemplary embodiment, a balanced amplifier includes an in-phase amplifier coupled to a first input port of an output coupler and a quadrature amplifier coupled to a second input...
7786797 Amplifying apparatus  
The amplifying apparatus includes an amplifier having a circuit constant determined so as to satisfy a condition for E-class operation; power detecting unit which detects an output electricity...
7782132 Method and apparatus for improving the performance of MIMO wireless systems  
Method and apparatus for efficiently providing DC power enhancement to power amplifiers each of which being arranged in a MIMO system, by suing an enhancement circuitry with a plurality of inputs...
7777571 High frequency power amplifier  
A high frequency power amplifier comprises: a multi-finger transistor with transistor cells electrically connected in parallel; an input side matching circuit connected to gate electrodes of the...
7777572 Integrated power amplifier  
Methods to implement low cost, high efficiency, low loss power combiner with novel matching circuits are disclosed. A narrow band power combiner enables a high power and high efficiency radio...
7773953 Wireless transceiving apparatus for variability of signal processing band  
Provided is a wireless transceiving apparatus for variability of signal processing band, in which at least one resonator of an analog processor and a VCO are simultaneously controlled using a...
7764120 Integrated circuit with parallel sets of transistor amplifiers having different turn on power levels  
A power amplifier circuit includes a power splitter that splits an input signal into a plurality of component input signals. At least two sets of transistor amplifiers are each coupled in parallel...
7760816 Automatic gain control using multiple equalized estimates dynamic hysteresis  
At least one adjustable gain analog amplifier (120, 124 and 128) in an analog line-up (102) amplifies by a gain an analog signal at an input of the analog line-up (102). The at least one...
7760025 Multi-primary distributed active transformer amplifier power supply and control  
An integrated power combiner is disclosed. The power combiner includes a first circular geometry primary winding having one or more inductive elements, such as an active winding with one or more...
7760023 Method and apparatus for stabilizing RF power amplifiers  
A method and apparatus is provided for use in power amplifiers for reducing the peak voltage that transistors are subjected to. A power amplifier is provided with first and second switching...
7755430 Splitter circuit  
A splitter circuit improves isolation between output ports. The splitter circuit comprises input port 1, output port 2, output port 3, FET 6, FET 11 and an impedance circuit. FET 6 is provided...
7755452 Power combiner  
An RF power combiner used to combine an output received from a plurality of power amplifiers. The combined output is used to operate a gas discharge laser. In some embodiments, the power combiner...
7750740 Semiconductor circuit  
There are included a Wilkinson divider/combiner dividing an input signal, amplifying elements amplifying outputs of the Wilkinson divider/combiner, and a Wilkinson divider/combiner combining...
7746174 Systems and methods for power amplifier with integrated passive device  
Embodiments of the invention may provide for systems and methods for providing a power amplifier with integrated passive device, thereby improving the performance of the power amplifier. The power...
7746173 Power amplifier with output harmonic resonators  
Embodiments of circuits and systems for a radio frequency (RF) power amplifier employing output harmonic resonators are disclosed. The RF power amplifiers may include amplification circuitry...
7746175 Solid state RF power amplifier  
A power amplifier (power amplifier) having multiple solid state sub-amplifiers connected in parallel between the power amplifier input and the power amplifier output are described. The signal...
7737781 Differential amplifier and input circuit using the same  
A differential amplifier comprises a plurality of first switching elements configured to output differentially amplified signals through output terminals when a voltage level of a first input...
7733185 Distributed amplifier and integrated circuit  
A plurality of transistors operate as amplification elements. An input side coupling circuit comprises a plurality of distributed constant lines connected in series, one terminal of which is an...
7728663 Integrated implementation of a voltage boost follower and method therefor  
A collector boost circuit is disclosed for providing a first voltage in a first mode of operation to a power amplifier, and another voltage in a second mode of operation to the power amplifier....
7724092 Dual-path current amplifier  
A dual-path current amplifier having a slow high-gain path and a fast low-gain path is described. In one design, the slow high-gain path is implemented with a positive feedback loop and has a gain...
7719353 LINC amplifying device  
An amplifying apparatus includes a splitting unit for splitting an input signal into a first split signal and a second split signal; phase-shifting unit for phase-shifting the first split signal...
7719357 Differential amplifier with a plurality of input pairs  
The present invention provides a differential amplifier with a plurality of input pairs. The differential amplifier not only includes a differential amplifier with a single input pair but also...
7719352 Active circuits with isolation switches  
Active circuits with isolation switches are described. In one design, an apparatus includes first and second amplifiers coupled in parallel. Each amplifier receives an input signal and provides an...
7714648 Amplifying system  
The performance of an amplifying system is improved by achieving adequate matching. The amplifying system for amplifying signals includes distributing means 1 that distribute a signal, a carrier...
7710202 Amplifier  
An amplifier includes a carrier amplifier which performs signal amplification at all times, a peak amplifier which operates only at a time when the high electric power is outputted, a combiner...
7705682 Inductor sharing in radio frequency communications  
Two or more low noise amplifiers are configured to amplify received radio frequency input signals and one or more shared load or source degeneration inductors are configured to be used for each of...