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| Number | Title | Issue Date |
| 8008971 | System and method for controlling radio frequency transmissions from an electronic device The disclosure relates to a system and method for attenuating harmonics in output signals. In the system, an electronic circuit for reducing leakage of radio frequency signals from a power amplifier of a wireless communication device is provided. The circuit compris... | 08/30/2011 |
| 7724084 | System and method for controlling radio frequency transmissions from an electronic device The invention relates to a system and method for attenuating harmonics in output signals. In the system, an electronic circuit for reducing harmonics of an output signal from a power amplifier in a transmission circuit for a wireless communication device is provided... | 05/25/2010 |
| 7564303 | Semiconductor power device and RF signal amplifier A semiconductor power device comprises a flange, a die having a gate, a source, and a drain. The source is electrically coupled to the flange. A drain matching circuit is located on the flange having an input, an output and a bias input, the input being coupled with... | 07/21/2009 |
| 7417498 | Amplifier with feedback bridge An amplifier, in particular for RF-applications, comprises a circuit board (2), at least one amplifier stage with at least one transistor package (8) arranged on the circuit board (2), and a feedback path (12) around the at least one tran... | 08/26/2008 |
| 7372336 | Small-sized on-chip CMOS power amplifier having improved efficiency A small-sized on-chip complementary metal-oxide semiconductor (CMOS) Power Amplifier having improved efficiency is provided herein. The on-chip CMOS power amplifier is capable of improving efficiency and maximizing output thereof by enhancing a K factor, which may c... | 05/13/2008 |
| 7372334 | Output match transistor A power transistor, having: a semiconductor having an electrode formed thereon, wherein the electrode comprises a plurality of interdigitated transistors each having input and output terminals; a first output blocking capacitor having a first terminal electrically c... | 05/13/2008 |
| 7362562 | Electronic unit of radio system and method of producing the same The invention relates to a method of producing an electronic unit of a radio system automatically, an electronic unit of a radio system and an electronic component. The method of producing an electronic unit of a radio system automatically comprises mounting (802... | 04/22/2008 |
| 7348842 | Multi-substrate RF module for wireless communication devices A radio frequency (RF) module includes a first substrate adapted to receive passive circuits; and a second substrate adapted to receive active circuits, the first and second substrates electrically coupled through pads positioned on opposing surfaces of the first an... | 03/25/2008 |
| 7340184 | Linearized Optical Transmitter Using Feedback Control Apparatus and methods for linearizing an optical transmitter are described. A linearized optical transmitter according to the present invention includes a modulator bias voltage supply that biases an optical modulator. The optical modulator modulates an optical sign... | 03/04/2008 |
| 7339444 | Methods for providing bias to a monolithic microwave integrated circuit In general, in accordance with an exemplary aspect of the present invention, a method is provided for providing DC bias to an MMIC power amplifier, the method comprising the steps of: attaching a first end of a bond wire directly to a matching structure; and, attach... | 03/04/2008 |
| 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 |
| 7300203 | Non-contacting sensor multichip module with integral heat-sinks A sensor assembly having a housing including a first portion and a second portion. One of the portions of the housing includes a plurality of walls. The walls at least partially define a chamber. The assembly also includes a hinge connected to the first portion and ... | 11/27/2007 |
| 7282765 | Power LDMOS transistor An LDMOS device comprises a substrate having a first conductivity type and a lightly doped epitaxial layer thereon having an upper surface. Source and drain regions of the first conductivity type are formed in the epitaxial layer along with a channel region of a sec... | 10/16/2007 |
| 7280808 | Wireless communications devices including circuit substrates with partially overlapping conductors thereon coupling power to/from power amplifier systems A wireless communications device can include a power amplifier that is configured to transmit information to a wireless communications network during a first time interval and configured to avoid transmitting information during a second time interval. A circuit subs... | 10/09/2007 |
| 7241699 | Wide bandgap semiconductor device construction The invention includes methods for precisely and accurately etching layers of wide bandgap semiconductor material. According to one aspect of the invention, the method includes providing a multi-layer laminate including at least a first and second layer of wide band... | 07/10/2007 |
| 7236372 | Surface mounted power supply circuit apparatus and method for manufacturing it A surface mounted power supply circuit apparatus, including a circuit substrate, circuit constituting parts mounted on the circuit substrate, and a sealing member provided on the circuit substrate for covering the circuit constituting parts, at least one portion of ... | 06/26/2007 |
| 7205836 | SiGe differential cascode amplifier with miller effect resonator A high-power, high frequency (1–100 GHz) power amplifier, made using SiGe transistors. A differential common-emitter amplifier section supplies the voltage amplification, allowing the total voltage swing of the amplifier to be twice the breakdown voltage of the in... | 04/17/2007 |
| 7180394 | Millimeter wave (MMW) radio frequency transceiver module and method of forming same A low cost and high performance millimeter wave (MMW) radio frequency transceiver module includes a substrate board and plurality of microwave monolithic integrated circuit (MMIC) chips supported by the substrate board and arranged in a receiver section, a local osc... | 02/20/2007 |
| 7180373 | High frequency power amplifier module and semiconductor integrated circuit device Cross-band isolation characteristics are to be significantly improved without using any filtering circuit. In the central part of a semiconductor chip provided in an RF power module is formed a ground wiring layer from the upper part downward. This ground wiring lay... | 02/20/2007 |
| 7176579 | Semiconductor module The present invention realizes the miniaturization of a semiconductor module. The semiconductor module includes a module board having external electrode terminals and a heat radiation pad over a lower surface thereof, a first semiconductor chip incorporating an init... | 02/13/2007 |
| 7176756 | Inductor element containing circuit board and power amplifier module An inductor element containing circuit board of the present invention comprises a plurality of conductive layers, and a conductor having an inductor function (inductor conductor segment) in one or more of the conductive layers, wherein at least part of the inductor ... | 02/13/2007 |
| 7167074 | Integrated planar flyback transformer Method and apparatus are provided for fabricating a planar transformer assembly for use in an implantable medical device. The planar transformer assembly includes a board, a first core, and a second core. The board has a first side, a second side, and an embedded wi... | 01/23/2007 |
| 7154760 | Power amplifier module The present invention realizes strengthening of a ground of a lower-surface ground electrode of an upper semiconductor chip and miniaturization in a semiconductor module on which two semiconductor chips are mounted in a stacked manner. A lower semiconductor chip is ... | 12/26/2006 |
| 7133705 | Portable power amplifier A portable power amplifier includes portable encapsulating cases, a printed board incorporated in those encapsulating cases, and a power amplifying device mounted on this printed board. An antenna switch and an antenna are provided near the power amplifying device, ... | 11/07/2006 |
| 7119613 | RF amplifier A RF amplifier device (22) including an amplifier element (24) compensated by a compensating circuit (26, 28) with respect to its output capacitance and frequency decoupled from its power supply (26), wherein the decoupling circuit is dir... | 10/10/2006 |
| 7113056 | 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... | 09/26/2006 |
| 7113034 | High frequency power amplifier and wireless communication module The present invention provides a high frequency power amplifier of an open-loop type, which outputs a signal having a level corresponding to an output level required under control of a power supply voltage for each output power FET, based on a control signal for the... | 09/26/2006 |
| 7109589 | Integrated circuit with substantially perpendicular wire bonds An integrated circuit comprises an integrated circuit package and a plurality of circuit elements disposed within the integrated circuit package. A plurality of wire bonds provide connections for at least one of the circuit elements. At least one wire bond in a firs... | 09/19/2006 |
| 7095293 | Methods and devices for providing bias to a monolithic microwave integrated circuit In general, the present invention provides an RF signal amplification system having an improved layout. The size of the MMIC can be reduced without loss of functionality and/or additional functionality can be added to the MMIC without increasing the size of the MMIC... | 08/22/2006 |
| 7046959 | MMIC transceiver and low cost subharmonically driven microwave receiver A receiver is operable at microwave frequencies and includes a substrate and waveguide-to-microstrip transition formed on the substrate for receiving microwave radio frequency (RF) signals. Surface mounted receiver components are interconnected with microstrip forme... | 05/16/2006 |
| 7026869 | Broadband amplifier having offset microstrip section in a housing module A broadband driver amplifier module is made using an arrangement of MMICS and microstrip to provide inline rf connectors for the input and output and a small package size. The input and output microstrips incorporate a microstrip portion which is at an angle to the ... | 04/11/2006 |
| 7019600 | Waveguide/planar line converter and high frequency circuit arrangement A waveguide/planar line converter is provided which enables a simplified assembling operation and accurate positioning of a signal line. The waveguide/planar line converter includes a housing having a waveguide and a waveguide/planar line conversion substrate with a... | 03/28/2006 |
| 7012542 | Multicolor function indicator light A multicolor function indicator light system is provided for an audio amplifier or similar electronic equipment. A sensor circuit monitors operation of the equipment. An indicator light device has a plurality of different color outputs. A control logic circuit recei... | 03/14/2006 |
| 6967543 | Microstrip-to-waveguide power combiner for radio frequency power combining A microstrip-to-waveguide power combiner includes a dielectric substrate and at least two microstrip transmission lines formed thereon in which radio frequency signals are transmitted. The microstrip transmission lines terminate in microstrip launchers or probes at ... | 11/22/2005 |
| 6952143 | Millimeter-wave signal transmission device A transition for transmitting a mm-wave signal from one plane to another, the transition comprising: (a) first and second transmission lines on parallel planes; (b) a third transmission line orthogonal to the first and second transmission lines, wherein either the f... | 10/04/2005 |
| 6943441 | Semiconductor device In a semiconductor device such as a high-frequency power amplifier module, a plurality of amplifying means are formed on a semiconductor chip which is mounted on a main surface of a wiring substrate, and electrodes of the semiconductor chip are electrically connecte... | 09/13/2005 |
| 6937482 | Compact, high efficiency, high isolation power amplifier A power feedforward amplifier uses integral cavities to provide RF isolation between subcircuits of the power amplifier. The chassis includes a main chassis body and a lid structure adapted to couple with the chassis body and define the subcircuit cavities. The inne... | 08/30/2005 |
| 6933780 | Predistortion circuit and power amplifier A predistortion circuit has an input terminal for inputting a predetermined signal; a nonlinear device directly or indirectly connected to the input terminal; a bias supply circuit for applying a v... | 08/23/2005 |
| 6920312 | RF generating system with fast loop control An RF generating system operates with high efficiency to supply RF output power to a plasma load. The RF generating system is capable of modulating the RF output power at frequencies up to the frequency of the RF output power while maintaining high efficiency operat... | 07/19/2005 |
| 6917256 | Low loss waveguide launch According to the preferred exemplary embodiments of the present invention, a transmission line, such as microstrip, is connected to a waveguide using suspended stripline as an intermediate connection. This method results is a very low-loss transition, suitable for a... | 07/12/2005 |
