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| Application No. | Application Title | Issue Date |
| 20120049962 | SIGNAL AMPLIFICATION DEVICE AND SIGNAL AMPLIFICATION METHOD A signal amplification device includes: a signal generator which divides an input signal so as to generate a plurality of division signals having a specified amplitude and different phases; a plurality of amplifiers which amplify the plurality of division signals by usi... | 03/01/2012 |
| 20120044980 | 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 impedance modification element and an output phase shift element that is operab... | 02/23/2012 |
| 20120038424 | BROADBAND POWER COMBINING METHOD AND HIGH POWER AMPLIFIER USING SAME A broadband power combining method comprises the steps of converting desired voltage or current relation over a specified frequency band to specified polynomial transfer equation; steps of formulating the said specified polynomial transfer equation and extracting the co... | 02/16/2012 |
| 20120025916 | DOHERTY AMPLIFIER An amplifier includes a Doherty amplifier composed of a distributor distributing an input signal to two signals, a carrier amplifier that receives one of the two signals and has a first FET, a peaking amplifier that receives the other one of the two signals and has a se... | 02/02/2012 |
| 20120025915 | DOHERTY AMPLIFIER A Doherty amplifier includes: an input distributor; a coupler; a plurality of Doherty circuit connected between the input distributor and the coupler; wherein each of Doherty circuits has a carrier amplifier, a peaking amplifier, a distributor distributing a input signa... | 02/02/2012 |
| 20120019326 | DOHERTY AMPLIFIER AND SEMICONDUCTOR DEVICE A Doherty amplifier includes a carrier amplifier including a first FET, the first FET having a plurality of gate electrodes, and a peaking amplifier including a second FET, the second FET having a plurality of gate electrodes, a gate-to-gate interval of the gate electro... | 01/26/2012 |
| 20120013405 | RF DETECTOR WITH CREST FACTOR MEASUREMENT An RF detector configured to provide two outputs, one being a function of the true RMS power level of an RF input signal, and the other being a function of the instantaneous/peak power of the RF input signal, normalized to the average power level. The RF detector includ... | 01/19/2012 |
| 20120001695 | RADIO FREQUENCY POWER AMPLIFIER The radio frequency power amplifier is connected between an other end of the first switching element and an other end of the second switching element, supplies power to a second amplifier via the first switching element and a second matching circuit, and includes a firs... | 01/05/2012 |
| 20110316633 | AMPLIFYING DEVICE In an amplifying device, an amplification unit includes a first amplifier which amplifies a signal and a second amplifier which amplifies a signal when the signal has a predetermined level or more. A detector detects a temperature change. A calculation unit calculates a... | 12/29/2011 |
| 20110309883 | Integrated Linear Power Detection In An RF Power Amplifier A radio frequency (RF) power amplifier system having a power detection feature includes a balanced power amplifier, an in-phase branch current detector, an out-of-phase branch current detector, and detection circuitry. The balanced power amplifier includes a phase split... | 12/22/2011 |
| 20110304400 | HIGH EFFICIENCY BALANCED OUTPUT AMPLIFIER SYSTEM A high efficiency amplifier system may include multiple output stages cooperatively operating to produce an amplified output signal. The amplifier system may be used in an audio system. The amplifier system may include a non-switchmode amplifier stage cooperatively oper... | 12/15/2011 |
| 20110298544 | TWO STAGE DOHERTY AMPLIFIER The invention refers to a Doherty power amplifier comprising a first power amplifier (Main PA) adapted to receive an input signal and adapted to provide a first output signal which is phase shifted with respect to the input signal. The amplifier further comprises a seco... | 12/08/2011 |
| 20110285467 | Distributed Doherty Amplifiers Doherty and distributed amplifier (DA) designs are combined to achieve, wideband amplifiers with high efficiency dynamic range. A modified Doherty amplifier includes a wideband phase shifter providing first and second outputs, a main amplifier coupled to the first outpu... | 11/24/2011 |
| 20110279184 | AREA EFFICIENT CONCURRENT MATCHING TRANSCEIVER An integrated circuit for transmit and receive matching is described. The integrated circuit includes a transmit amplifier. The transmit amplifier includes a first transistor, a second transistor and a first inductor. The first inductor couples the first transistor to t... | 11/17/2011 |
| 20110273234 | RECONFIGURABLE OUTPHASING CHIREIX AMPLIFIERS AND METHODS Various embodiments relate to a reconfigurable integrated digital Chireix out-phasing power amplifier for use in high power base stations is described and a related method of said design. The power amplifier may include a power transistor circuitry having plurality of p... | 11/10/2011 |
| 20110273236 | POWER CONTROL OF RECONFIGURABLE OUTPHASING CHIREIX AMPLIFIERS AND METHODS Various embodiments relate to a reconfigurable integrated digital Chireix out-phasing power amplifier for use in high power base stations is described and a related method of said design. The power amplifier may include a power transistor circuitry having plurality of p... | 11/10/2011 |
| 20110273235 | FEEDFORWARD CONTROLLED ENVELOPE MODULATOR AND FEEDFORWARD CONTROL CIRCUIT THEREOF The present disclosure illustrates a feedforward controlled envelope modulator and a feedforward control circuit thereof. The feedforward controlled envelope modulator comprises a linear amplifier circuit, a switching amplifier, and a feedforward control circuit. The li... | 11/10/2011 |
| 20110260797 | SYSTEMS AND METHODS FOR A DISCRETE RESIZING OF POWER DEVICES WITH CONCURRENT POWER COMBINING STRUCTURE FOR RADIO FREQUENCY POWER AMPLIFIER Systems and methods are provided for discrete resizing of power devices. The systems and methods can include a plurality of unit power amplifiers arranged in parallel, where each unit power amplifier includes at least one first input port, at least one first output port... | 10/27/2011 |
| 20110254629 | MULTI STAGE AMPLIFIER A multi-stage amplifier includes a first, a second, and a third sub-amplifier, each with respective input and output ports. The multi-stage amplifier also includes a common output port. The output port of the second sub-amplifier is connected to the output port of the f... | 10/20/2011 |
| 20110254628 | Multi-Stage Amplifier The disclosed multi-stage amplifier (200) comprises several amplifier stages (201-203) which, together with an output network, form different branches. A first branch comprises a first and a second amplifier (201, 202) having their outputs co... | 10/20/2011 |
| 20110248784 | MULTI-CHIP DOHERTY AMPLIFIER WITH INTEGRATED POWER DETECTION In accordance with an exemplary embodiment of the present invention, a Doherty amplifier is provided for applications in radio frequency, microwave, and other electronic systems. An exemplary Doherty amplifier comprises a first MMIC having a first power detector, and a ... | 10/13/2011 |
| 20110241782 | POWER AMPLIFIER A power amplifier comprises a series stack of power amplifier devices, connected in parallel to the amplifier input for receiving an RF input signal, and having output terminals being connected in series to the amplifier output. An intermediate coupling capacitor is con... | 10/06/2011 |
| 20110234321 | MULTI-FUNCTION MONOLITHIC MICROWAVE INTEGRATED CIRCUIT (MMIC) OPERATING AS AMPLIFIER SWITCH A multi-function MMIC operated by a switch using an amplifier is disclosed. A switch may be configured by connecting an input or an output of a plurality of amplifiers, and an insertion loss may be reduced by selecting a transmission mode or a reception mode of an MMIC ... | 09/29/2011 |
| 20110217941 | AMPLIFIER AND COMMUNICATION APPARATUS An amplifier includes first and second amplifier circuits. The first amplifier circuit amplifies positive-phase input signal to obtain a first positive-phase signal and amplifies negative-phase input signal to obtain a first negative-phase signal. The second amplifier c... | 09/08/2011 |
| 20110204980 | INTEGRATED DOHERTY AMPLIFIER The invention relates to an integrated Doherty amplifier with an input network connecting the input to the main stage and to the peak stage, and with an output network connecting the main stage and the peak stage to the output. The output network has a shunt capacitor t... | 08/25/2011 |
| 20110187458 | POWER AMPLIFIER There is provided a power amplifier capable of improving harmonics characteristics of an output signal of an amplifier circuit by compensating a phase of the output signal. A power amplifier according to an aspect of the invention may include: an amplification section h... | 08/04/2011 |
| 20110181353 | TWO-CHANNEL OPERATIONAL AMPLIFIER CIRCUIT A two-channel operational amplifier circuit includes a first operational amplifier and a second operational amplifier. In a first frame period, the two-channel operational amplifier circuit switches a first input stage, a first gain stage and a first output stage to wor... | 07/28/2011 |
| 20110175679 | Network for controlling the power supply to a system of active elements The present invention relates to a power supply control network of an amplifying active elements system enabling at least one control signal to be transmitted to N different control systems of the power supply voltage of P different composed active amplifying elements. ... | 07/21/2011 |
| 20110175680 | WIRELESS COMMUNICATION DEVICE AND SEMICONDUCTOR PACKAGE DEVICE HAVING A POWER AMPLIFIER THEREFOR A semiconductor package device comprises a first amplifier block, at least one further amplifier block operably coupled in parallel with the first amplifier block between a common input and a common output, and at least one stabilisation network operably coupled between... | 07/21/2011 |
| 20110163813 | AMPLIFIER CIRCUIT An amplifier circuit can include a first supply terminal to receive a first reference voltage; a second supply terminal to receive a second reference voltage; a first pair of circuit paths extending between the first and second supply terminals and including a respectiv... | 07/07/2011 |
| 20110148528 | AMPLIFICATION CELL EMPLOYING LINEARIZATION METHOD AND ACTIVE INDUCTOR USING THE SAME An amplification cell employing a linearization scheme and an active inductor using the same are provided. The active inductor includes: first and second amplification cells each including a main amplifying unit amplifying an input signal, an auxiliary amplifying unit c... | 06/23/2011 |
| 20110140786 | DOHERTY AMPLIFIER A combination amplifier, in particular a Doherty amplifier allowing dynamic biasing, is provided, the combination amplifier comprising a first amplifier (3,3a,3b) having a first input terminal (11,11a,11b) and a fi... | 06/16/2011 |
| 20110140783 | DOHERTY AMPLIFIER WITH COMPOSED TRANSFER CHARACTERISTIC HAVING MULTIPLE PEAK AMPLIFIERS A combination amplifier (1,1a) is provided which comprises a carrier amplifier (7,7a) and a series connection of a first peak amplifier (9,9a) and a second peak amplifier (11,11a) which are provided with a phase-sh... | 06/16/2011 |
| 20110133843 | POWER AMPLIFIER DEVICE Provided is a power amplifier device. The power amplifier device includes: a cutoff unit cutting off a direct current (DC) component of a signal delivered from a signal input terminal; a circuit protecting unit connected to the cutoff unit and stabilizing a signal deliv... | 06/09/2011 |
| 20110128079 | MULTI-BAND POWER AMPLIFIER WITH HIGH-FREQUENCY TRANSFORMER A multi-band power amplifier in a wireless communication system includes: a plurality of matching circuits connected in parallel to an output stage of the power amplifier and corresponding to a plurality of different operation frequencies, respectively; and a plurality ... | 06/02/2011 |
| 20110121912 | ASYMMETRIC POWER DIVIDER Disclosed herein is an asymmetric power divider. The asymmetric power divider includes a power dividing unit, a first matching network, and a second matching network. The power dividing unit supplies different amounts of power to a carrier amplifier and a peaking amplif... | 05/26/2011 |
| 20110117860 | Reducing Common Mode Effects In An Output Stage In one embodiment, a power amplifier may include an output stage with multiple transformers and corresponding matching capacitances. The capacitances may include a first matching capacitance coupled in parallel with a secondary coil of a first transformer and a second m... | 05/19/2011 |
| 20110109393 | Stacked pre-driver amplifier A stacked pre-driver stage and a power amplifier including the stacked pre-driver stage are described. The stacked pre-driver stage comprises stacked pre-drivers arranged in series between a supply voltage and a reference voltage. Each pre-driver includes a pre-driving ... | 05/12/2011 |
| 20110095828 | 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 impedance modification element and an output phase shift element that is operab... | 04/28/2011 |
| 20110068873 | 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 power amplifiers operated under the power back-off conditions.... | 03/24/2011 |
