Class / Patent application number | Description | Number of patent applications / Date published |
330286000 | Including distributed parameter-type coupling | 24 |
20080278241 | Device Comprising an Element with Electrodes Coupled to Connections - An adaptive cruise control system and a method for controlling the speed of a vehicle are disclosed. The system generally includes a controller which determines a torque instruction associated with a limit speed of the vehicle which is less than a selected speed. The method generally includes determining a distance between the vehicle and an object detected in the path of the vehicle, determining a torque instruction which is associated with a limit speed which is less than a selected speed from at least the distance, and transmitting the torque instruction to an engine controller of the vehicle. | 11-13-2008 |
20080284519 | APPARATUS AND METHOD FOR POWER ADDED EFFICIENCY OPTIMIZATION OF HIGH AMPLIFICATION APPLICATIONS - A power added efficiency optimizer apparatus is provided for measuring and monitoring input and output power of an amplifying device, and adjusting the load impedance seen by the amplifying device so that power added efficiency is maintained at optimum levels. A power added efficiency optimizing device includes a variable load impedance that can be controlled, at least one power detection device located after the load, a difference forming apparatus, and at least one coupling device. The power added efficiency optimizing device provides an ability to maintain an amplifier at peak efficiency in a dynamic way and in the presence of changing electromagnetic load conditions. | 11-20-2008 |
20090009253 | ANALOG CIRCUIT - A resistor ( | 01-08-2009 |
20090039962 | HIGH FREQUENCY POWER AMPLIFIER AND HIGH FREQUENCY HEATING DEVICE - A high frequency power amplifier includes an amplification element, a harmonic control circuit, an output matching circuit, and a load resistor. A high frequency signal input from an input end is amplified in the amplification element, passes through the harmonic control circuit and the output matching circuit, and is then supplied to the load resistor. The harmonic control circuit includes a first dielectric resonator and a second dielectric resonator. | 02-12-2009 |
20090051438 | Amplifying system - The performance of an amplifying system is improved by achieving adequate matching. The amplifying system for amplifying signals includes distributing means | 02-26-2009 |
20090066420 | SOLID STATE POWER AMPLIFIER WITH MULTI-PLANAR MMIC MODULES - A solid state power amplifier (SSPA) system may include a radio frequency (RF) input, an RF waveguide split block, multiple monolithic microwave integrated circuit (MMIC) power amplifier modules, and/or a heat spreader. An MMIC power amplifier module may include a backing, a board, at least one MMIC, and/or a cover. A method for dissipating heat within an SSPA may include receiving an RF signal, splitting the RF signal, amplifying multiple RF signals, combining the multiple RF signals, generating heat, and/or dissipating heat. | 03-12-2009 |
20090085666 | RF AMPLIFYING DEVICE - When an output electrode of a power transistor in the final amplifying stage is coupled to a transmission line transformer TLT serving as an impedance matching circuit, a condition for impedance matching of the transmission line transformer is maintained. An RF amplifying device comprises 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 power from the output electrode of the power transistor is fed to one end of a main line of the transmission line transformer, and one end of a secondary line of the transmission line transformer is coupled to an AC grounding node. The other end of the secondary line is coupled to the one end of the main line, thereby generating the transmission power to be fed to the antenna from the other end of the main line. At an energy coupling part where the main line of the transmission line transformer is in close proximity of, and opposite to the secondary line, coupling energy is transmitted from the secondary line to the main line. Coupling members electrically coupled to the output electrode of the power transistor are electrically coupled to a joint formed in either the main line, or the secondary line, at part of the energy coupling part. | 04-02-2009 |
20090212868 | LOW POWER COMSUMPTION, LOW NOISE AND HIGH POWER GAIN DISTRIBUTED AMPLIFERS FOR COMMUNICATION SYSTEMS - Provided is a distributed amplifier in communication systems, including: an input transmission line; an output transmission line; an input impedance match and an output impedance match, for providing termination of the input transmission line and the output transmission line, respectively and for preventing signal reflection in the input transmission line and the output transmission line, respectively; multi-stage Gm cells with common mode feedback, the input transmission line being coupled to the output transmission line by the transconductance of the Gm cells; and an input gate bias circuit, for providing bias for the multi-stage Gm cells. In at least one of the Gm cells, one inverter performs V/I conversion while other inverters provide negative resistance to control common mode of output voltage and to enhance DC gain of the Gm cell. Due to common mode feedback, no output gate bias is needed. | 08-27-2009 |
20090212869 | 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 plurality of amplifier stages may be coupled between intermediate positions on the input and output lines. Feedback impedance may negatively feed back a signal on the output end of the output line to a second end of the input line spaced from the first end of the input line. | 08-27-2009 |
20090322430 | SEMICONDUCTOR PACKAGE WITH REDUCED INDUCTIVE COUPLING BETWEEN ADJACENT BONDWIRE ARRAYS - A semiconductor package ( | 12-31-2009 |
20100019851 | Modified distributed amplifier to improve low frequency efficiency and noise figure - A distributed amplifier system has a predetermined output impedance and input impedance and includes an input transmission circuit; an output transmission circuit; at least two amplifiers connected between the input and output transmission circuits; an input termination on the input transmission circuit; and a feedback output termination on the output transmission circuit connected back to the input transmission circuit for reducing low frequency loss while maintaining the predetermined output impedance and input impedance. | 01-28-2010 |
20100033252 | METHOD AND APPARATUS FOR JOSEPHSON DISTRIBUTED OUTPUT AMPLIFIER - The disclosure generally relates to a method and apparatus for providing high-speed, low signal power amplification. In an exemplary embodiment, the disclosure relates to a method for providing a wideband amplification of a signal by forming a first transmission line in parallel with a second transmission line, each of the first transmission line and the second transmission line having a plurality of superconducting transmission elements, each transmission line having a transmission line delay; interposing a plurality of amplification stages between the first transmission line and the second transmission line, each amplification stage having an resonant circuit with a resonant circuit delay; and substantially matching the resonant circuit delay for at least one of the plurality of amplification stages with the transmission line delay of at least one of the superconducting transmission lines. | 02-11-2010 |
20110181363 | ELECTRONIC CIRCUIT - An electronic circuit includes a first transistor having a first terminal grounded, a second transistor having a control terminal coupled with a second terminal of the first transistor, a first terminal grounded via a first capacitor, and a second terminal to which a DC power supply is connected, a first distributed constant line having one end connected to a first node between the second terminal of the first transistor and the control terminal of the second transistor and another end grounded via a second capacitor, a second distributed constant line having one end connected to the second terminal of the first transistor and another end connected to the first node, a third distributed constant line having one end connected to the control terminal of the second transistor and another end connected to the first node, a resistor connected between a second node between the first line and the second capacitor and a third node between the first terminal of the second transistor and the first capacitor, and a path that connects the third node and the second terminal of the first transistor via the first line and the resistor in a DC circuit operation. | 07-28-2011 |
20120081182 | BROADBAND HIGH POWER AMPLIFIER - A broadband high power amplifier architecture is disclosed. One example configuration includes a first plurality of distributed amplification cells connected in a first string, wherein a conductive trace operatively coupling outputs of the first string cells is a stepped structure, such that the associated inductance successively decreases from a first cell to a last cell of the first string. The amplifier further includes a second plurality of distributed amplification cells connected in a second string, wherein a conductive trace operatively coupling outputs of the second string cells is a stepped structure, such that the associated inductance successively decreases from a first cell to a last cell of the second string. A combiner combines output signals of the first and second strings. Additional strings and/or stages can be provided, and the degree of combining will depend, for example, on factors such as the application and desired output power. | 04-05-2012 |
20120133441 | ELECTRONIC CIRCUIT - An electronic circuit includes: a first transistor having a control terminal, a first terminal, and a second terminal; a second transistor having a control terminal connected to the second terminal of the first transistor, a first terminal, and a second terminal connected to a DC power supply; a plurality of DC paths that are mutually independent of each other and supply DC currents from the first terminal of the second transistor to the second terminal of the first transistor; and distributed constant lines connected in series with the plurality of DC paths. | 05-31-2012 |
20130069726 | POWER AMPLIFICATION APPARATUS - According to one embodiment, a power amplification apparatus includes an field effect transistor (FET), a first decoupling element, a power supply circuit, a second decoupling element, and a third decoupling element. The FET is arranged within a package having an input terminal and an output terminal, and power-amplify an input signal from the input terminal to a transmission signal. The first decoupling element decreases an inductance component of the transmission signal output from the FET. The power supply circuit supplies a driving power to the FET. The second decoupling element cut an RF component. The third decoupling element decreases an impedance of a drain bias circuit over a wide band. | 03-21-2013 |
20130265111 | POWER AMPLIFIER AND OPERATING METHOD THEREOF - A power amplifier includes a first amplifier and a second amplifier which include large and small size elements. An RF input signal is amplified by the first and second amplifiers. An output of the first amplifier is connected to an input of a first output matching circuit. An output of the second amplifier is connected to an input of a second output matching circuit. An output of the second output matching circuit is connected to an RF signal output terminal. In a high power state, the RF input signal is amplified by the first amplifier. In a low power state, the RF input signal is amplified by the second amplifier. In amplification with low power and high frequency, reactances of the second output matching circuit are set at predetermined values. In amplification with low power and low frequency, the reactances of the second output matching circuit are set at larger values. | 10-10-2013 |
20140111279 | ENVELOPE TRACKING DISTRIBUTED AMPLIFIER - A system and method amplify a waveform in a wireless network. An envelope of a waveform is detected to form an envelope waveform. The envelope waveform is shaped to form a shaped waveform, the shaping based on one or more characteristics of a distributed amplifier. The shaped waveform is filtered to form a filtered waveform. The filtered waveform is amplified to form a first amplified waveform. The distributed amplifier amplifies at least a part the waveform based on the first amplified waveform to form a second amplified waveform. | 04-24-2014 |
20140266455 | VARIABLE IMPEDANCE MATCH AND VARIABLE HARMONIC TERMINATIONS FOR DIFFERENT MODES AND FREQUENCY BANDS - An amplifier with switchable and tunable harmonic terminations and a variable impedance matching network is presented. The amplifier can adapt to different modes and different frequency bands of operation by appropriate switching and/or tuning of the harmonic terminations and/or the variable impedance matching network. | 09-18-2014 |
20140375387 | TRANSFORMER FOR MONOLITHIC MICROWAVE INTEGRATED CIRCUITS - Various embodiments may provide a monolithic transformer for a radio frequency (RF) power amplifier module, such as a microwave frequency power amplifier module. The transformer may include a plurality of pairs of edge-coupled transmission lines, with individual pairs including first and second edge-coupled transmission lines. The first transmission lines may include first ends coupled with one another and second ends coupled with an input terminal of the transformer. The second transmission lines may include first ends coupled with the input terminal and second ends coupled with an output terminal of the transformer. The transformer may pass a communication signal from the input terminal to the output terminal, and provide a first impedance at the input terminal and a second impedance at the output terminal. The second impedance may be higher than the first impedance (e.g., by a factor of four). | 12-25-2014 |
20150295547 | AMPLIFICATION STAGE AND WIDEBAND POWER AMPLIFIER - An amplification stage and a wideband power amplifier are provided. The amplification stage includes a stage input terminal, a stage output terminal, an amplifier, an input compensation network, and in output compensation network. At the stage input terminal is received a signal which is provided via the input compensation network to the amplifier. The input compensation network filters the signal to allow a wideband operation of the amplification stage around an operational frequency. The amplified signal provided by the amplifier is provided via the output compensation network to the stage output terminal. The output compensation network configured to allow a wideband operation of the amplification stage around the operational frequency with a minimal phase shift and distortion of amplitude and phase frequency response. The wideband power amplifier includes a plurality of amplification stage combined with transmission lines or their lumped element equivalents in a specific circuit topology. | 10-15-2015 |
20160028143 | DUPLEXER - A duplexer according to the present invention includes a transmission-side terminal, a reception-side terminal, a common terminal, a transmission-side circuit unit, and a reception-side circuit unit. Here, the transmission-side circuit unit is connected between the transmission-side terminal and the common terminal. The reception-side circuit unit is connected between the common terminal and the reception-side terminal. The transmission-side circuit unit includes a first transmission-side filter, a second transmission-side filter, and a transmission-side directional propagation circuit. Here, the first transmission-side filter is provided in the subsequent stage of the transmission-side terminal. The second transmission-side filter is provided in a stage subsequent to the first transmission-side filter. The transmission-side directional propagation circuit is connected between the first transmission-side filter and the second transmission-side filter. The reception-side circuit unit includes a first reception-side filter, a second reception-side filter, and a reception-side directional propagation circuit. Here, the first reception-side filter is provided in the subsequent stage of the common terminal. The second reception-side filter is provided in a stage subsequent to the first reception-side filter. The reception-side directional propagation circuit is connected between the first reception-side filter and the second reception-side filter. | 01-28-2016 |
20160380699 | TRAVELING WAVE AMPLIFIER FOR DRIVING OPTICAL MODULATOR - A traveling wave amplifier includes: a first line to transmit an input signal; an output-side line to transmit an output signal; amplifiers each having an input node and an output node, the input nodes being connected with the first line at first intervals and receiving the input signal, each of the amplifiers amplifying a signal input to the input node and outputting the amplified signal from the output node, the output nodes being connected with the output-side line at second intervals and generating the output signal; a second line to transmit another input signal having a phase opposite to a phase of the input signal; a first resistor having a first end connected with the first line and a second end; and a second resistor having a first end connected with the second line and a second end connected with the second end of the first resistor. | 12-29-2016 |
20190149112 | MONOLITHIC MICROWAVE INTEGRATED CIRCUIT HAVING AN OVERLAY TRANSFORMER AND LOW IMPEDANCE TRANSMISSION LINES | 05-16-2019 |