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| Number | Title | Issue Date |
| 8085094 | High frequency amplifier A high frequency amplifier includes a package substrate, an amplifying active device disposed on a top surface of the package substrate, a transmission line connected to the amplifying active device and transmitting a high frequency signal, a surface mounted device ... | 12/27/2011 |
| 8076975 | 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 st... | 12/13/2011 |
| 8058930 | Capacitively-coupled non-uniformly distributed amplifier The present disclosure relates to a capacitively-coupled non-uniformly distributed amplifier (NDA) having an input line and an output line that are coupled to one another through an input network and DA segments. The input network includes a group of capacitive elem... | 11/15/2011 |
| 8035449 | Capacitively-coupled distributed amplifier with baseband performance The present disclosure relates to a capacitively-coupled distributed amplifier (DA) having an input line and an output line that are coupled to one another through a broadband interface network and DA segments. The input line receives an input signal and the output ... | 10/11/2011 |
| 7973604 | Tunable multi frequency bands filter device The present invention relates to a tunable filter device for providing a tunable band pass characteristics for the receive path of a multi-band front-end module. According to the invention is proposed, a distributed, wide-band amplifier with a low-frequency cut-off ... | 07/05/2011 |
| 7928802 | RF amplification device An RF amplification device has amplification elements which amplify a radio frequency input signal in wireless radio communication. Transmission line transformers are coupled to one of an input electrode and an output electrode of the amplification elements and have... | 04/19/2011 |
| 7924097 | Solid-state ultra-wideband microwave power amplifier employing modular non-uniform distributed amplifier elements A number of identical non-uniformly distributed ultra-wideband power amplifier string building blocks are coupled together to form an ultra-wide bandwidth high-power amplifier. The non-uniform distribution results in an amplifier utilizing modular string building bl... | 04/12/2011 |
| 7915957 | Distributed amplification apparatus and amplifier Provided is a distributed amplification apparatus that outputs an output signal obtained by amplifying an input signal input thereto, comprising an input-side transmission line that transmits the input signal; an output-side transmission line that transmits the outp... | 03/29/2011 |
| 7889009 | Distributed active transformer based millimeter-wave power amplifier circuit A distributed active transformer (DAT) based millimeter-wave (MMW) power amplifier circuit is designed for power amplification of MMW frequency signals. The proposed MMW power amplifier circuit is characterized by distributing the input frequency signals into two se... | 02/15/2011 |
| 7843268 | 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 termina... | 11/30/2010 |
| 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 power from the output electrode of the power transistor is fed to one en... | 11/02/2010 |
| 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 plurality of amplifier stages may be coupled between intermediate positi... | 09/28/2010 |
| 7782140 | Analog circuit A resistor (9-1) and a resistor (11-1) are connected in parallel with each other between a source of an input transistor (7-1) and the ground. A switch (12-1) is provided between the resistor (11-1 | 08/24/2010 |
| 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 input terminal and the other terminal of which is a bias input terminal.... | 06/08/2010 |
| 7724091 | Matrix balun An active input matrix balun and a method for the same. The matrix balun has one input transmission line with an RF-in terminal for receiving a single ended RF-in signal and a first output transmission line with a first RF-out terminal and an adjacent second output ... | 05/25/2010 |
| 7579913 | Low power comsumption, low noise and high power gain distributed amplifiers 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 transmis... | 08/25/2009 |
| 7570117 | Amplifier device An amplifier device has an input distributor block to which a radio-frequency input signal to be amplified is fed via an input, and that has a number of distributor elements connected in series. Each distributor element splits the input signal supplied thereto into ... | 08/04/2009 |
| 7554406 | Spatially distributed amplifier circuit An exemplary amplifier circuit includes a first group of spatially distributed final amplifier stages having a first configuration, and a second group of spatially distributed final amplifier stages having a second configuration different than the first configuratio... | 06/30/2009 |
| 7525384 | Transmission line amplifier A transmission line amplifier utilizes a transmission line transistor having a gate line, and first and second lines. The gate line is a gate of the transistor, one of the first and second lines is a source of the transistor, and the other is a drain of the transist... | 04/28/2009 |
| 7508267 | GaN based digital controlled broadband MMIC power amplifier A power amplifier comprises a distributed pre-driver, digital signal adjuster, a distributed high power amplifier; and an integrated coupler-detector unit. The distributed pre-driver, the digital signal adjuster, the distributed high power amplifier and the integrat... | 03/24/2009 |
| 7498883 | Distributed amplifier with built-in filtering functions A distributed amplifier uses non-uniform filtering structures to provide better control over pass-band and stop-band characteristics. The various sections can have different tap coefficients. A notch filter can be implemented for interference suppression or pulse sh... | 03/03/2009 |
| 7482874 | Non-uniform distributed multi-stage circuits Provided herein is a non-uniform multi-stage distributed circuit capable of operation with an improved gain-bandwidth product. The circuit can include an input port, an output port and a transmission line coupled therebetween. Two or more amplifier stages can be cou... | 01/27/2009 |
| 7414477 | Distributed amplifier topologies with improved gain bandwidth product A distributed amplifier is provided that includes an input network that simulates an input signal transmission line, and having an output network that simulates an output signal transmission line, and also having multiple unit cells with amplifying characteristics t... | 08/19/2008 |
| 7411450 | Circuit and method for amplification of an electrical input signal In a circuit and a method for amplification of an electrical input signal, a signal splitter divides the input signal into a first partial signal in a first signal path and a second partial signal in a second signal path. The first signal path has a first amplificat... | 08/12/2008 |
| 7405626 | Distributed amplifier having a variable terminal resistance A distributed amplifier is disclosed herein, which includes a signal amplification unit amplifying a RF input signal fed into the RF signal, a first biasing circuit providing a direct current (DC) bias signal, a second biasing circuit providing a DC bias signal, the... | 07/29/2008 |
| 7397308 | Traveling wave amplifier with distributed regenerative feedback between drain-to-drain transmission lines and gate-to-gate transmission lines for enhanced high frequency bandwidth An improved traveling wave amplifier is disclosed. The improvements to the traveling wave amplifier disclosed include designing the drain-to-drain and gate-to-gate transmission lines as coupled pairs thereby coupling energy back to the input from the output. The res... | 07/08/2008 |
| 7373090 | Modulator driver circuit with selectable on-chip termination A method and apparatus to accommodate differing output loads without sacrificing impedance matching in an optical modulator driver. ... | 05/13/2008 |
| 7368666 | Surface-mounting type electronic circuit unit without detachment of solder A surface-mounting type electronic circuit unit includes pedestal bases. The pedestal bases are attached to first lands provided on the bottom surface of an insulating substrate and are made of plate-shaped metal material having a solder film on the outer surface th... | 05/06/2008 |
| 7362170 | High gain, high efficiency power amplifier An amplifier has a main amplifier circuit with multiple amplification stages, including a driving stage and an auxiliary amplifier circuit with multiple amplification stages, including a driving stage. A splitter circuit splits an input signal to provide path asymme... | 04/22/2008 |
| 7362182 | Power amplifier A radio frequency power amplifier including control electronics for providing control signals for timing of the power amplifier. A first group of the drivers are coupled to the control electronics and a second group of drivers are coupled to the control electronics.... | 04/22/2008 |
| 7358815 | Monolithic transformer based amplifier for integrated circuits Monolithic transformer based amplifier for integrated circuits. The amplifier includes an input transformer with a first impedance transforming ratio. The input transformer includes a coupled line structure. An amplification circuit is coupled to the input transform... | 04/15/2008 |
| 7348856 | Semiconductor device Power amplifier circuits which constitute an RF power module used for a digital device capable of handling high frequency signals in two frequency bands are disposed over the same IC chip. The power amplifier circuits are disposed around the IC chip, and a secondary... | 03/25/2008 |
| 7330076 | Reconfigurable distributed active transformers Reconfigurable distributed active transformers are provided. The exemplary embodiments provided allow changing of the effective number and configuration of the primary and secondary windings, where the distributed active transformer structures can be reconfigured dy... | 02/12/2008 |
| 7315876 | System and method for providing delay line and/or finite impulse response filters using a lossless and dispersion-free transmission line A delay line is constructed using a lossless (or low loss) transmission line which, in turn, can be constructed using an auxiliary conductor inductively coupled to the primary conductor. The auxiliary conductor is driven by the primary conductor through an active sh... | 01/01/2008 |
| 7315206 | Travelling-wave amplifier A traveling-wave amplifier includes amplifiers coupled anti-parallel to transmission lines. Phase(s) of the amplifiers provide phase matching, which may additionally or alternately be provided by couplers or spatial offset of the amplifiers and couplers. The traveli... | 01/01/2008 |
| 7312673 | Radial power divider/combiner A radial power divider-combiner is disclosed. The divider-combiner includes a divider and a combiner. An input signal is provided to a transmission antenna that radiates the input signal inside the divider. Within the divider, the input signal is divided into a plur... | 12/25/2007 |
| 7310019 | High frequency power amplifier A high frequency power amplifier includes: a multi-finger transistor including transistor cells electrically connected in parallel; an input side matching circuit connected to gate electrodes of the transistor cells; and resonant circuits, each resonant circuit bein... | 12/18/2007 |
| 7289784 | Active tunable filter circuit An active tunable filter circuit for use as an integratable active filter in a mobile radio apparatus, comprises an active amplifier circuit (A) including a reactive feedback network including a first tunable element (L1) set to pass with amplification a want... | 10/30/2007 |
| 7288995 | Power amplifier of a transmitter A power amplifier integrated into an RF-IC (integrated circuit carrying radio frequency signals) comprises an active stage (350) and a passive stage (360), the passive stage being electrically coupled between the active stage and a load of the power am... | 10/30/2007 |
| 7286726 | Integrated active electrical waveguide for optical waveguide modulators An integrated active electrical waveguide is described for optical waveguide modulators. The active waveguide may include an optical waveguide, a plurality of modulators integrated into the waveguide to modulate the index of refraction of the waveguide, and a plural... | 10/23/2007 |
