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| Number | Title | Issue Date |
| 7432780 | Rectangular-to-circular mode power combiner/divider A rectangular-to-circular mode combiner/divider is provided. In one aspect of the invention, a power combiner is provided that comprises a plurality of rectangular waveguide ports arranged in an integral arrangement. Each rectangular waveguide port is operative to o... | 10/07/2008 |
| 7403085 | RF module The present invention provides an RF module capable of outputting balanced electromagnetic waves without requiring adjustment and easily realizing miniaturization. The RF module includes: a waveguide (3) having an area which is surrounded by a pair of ground ... | 07/22/2008 |
| 7373627 | Method of designing wiring structure of semiconductor device and wiring structure designed accordingly A method of designing a wiring structure of an LSI is capable of reducing a capacitance variation ratio ΔC/C or a resistance-by-capacitance variation ratio Δ(RC)/(RC) of the wiring structure. The method sets a process-originated variation ratio (δP) fo... | 05/13/2008 |
| 7315222 | Matching feed partially inside a waveguide ridge An impedance matching feed is disclosed for use in a ridge waveguide which allows a coaxial transmission line, generally having an impedance of fifty ohm, to be matched to a ridge waveguide of arbitrary impedance. The matching feed consist of a transformer which is ... | 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 |
| 7292121 | RF combining device and method Two or more reflective isolator elements are joined at their outputs to produce an RF combining structure. An RF circulator element is used for each input RF signal as a reflective isolator element to provide a different phase delay according to the direction of pro... | 11/06/2007 |
| 7268644 | Antenna connection device, antenna signal splitter and method for reception frequency control A system for connecting at least two receivers to a common antenna is proposed, antenna signal lines being supplied to the receivers, which stands out in that the input impedances of the at least two receivers are matched only in a narrow-band fashion in the range o... | 09/11/2007 |
| 7262673 | Transmission line A transmission line of striptype includes a dielectric having a local dielectric constant alternating between at least two different values. It can be manufactured by applying a first layer (3) of a material having a first dielectric constant ∈1 to a base (... | 08/28/2007 |
| 7248130 | High power combiner/divider A power combiner/divider is disclosed that employs triaxial transmission line structures operatively coupled to provide a desired number of input/output ports. A balun is operatively coupled to the triaxial transmission line structures, and is adapted to couple out ... | 07/24/2007 |
| 7245192 | Coupler with edge and broadside coupled sections Couplers are disclosed that include first and second mutually coupled conductors. The coupled conductors may be regular or irregular in configuration, and for example, may be linear, including rectilinear or with one or more curves, bends or turns, such as forming a... | 07/17/2007 |
| 7239165 | Pulse transport apparatus, systems, and methods Apparatus and systems, as well as methods and articles, may operate to transmit an initial pulse to a directional coupler, where the initial pulse has an initial amplitude and a timed overshoot of a selected duration. Further activities may include stepping down the... | 07/03/2007 |
| 7221239 | Variable power divider A variable power divider and method can vary the RF power between ports in a high power and multi-carrier RF environment, such as is used in controlling signals sent and received in a base station antenna. The variable power divider can include a single-control phas... | 05/22/2007 |
| 7205865 | Power divider and combiner in communication system Disclosed is a high frequency omni-directional 2-way power divider which includes one input terminal and two output terminals so that a signal inputted through the input terminal is uniformly distributed to the two output terminals. The high frequency omni-direction... | 04/17/2007 |
| 7199681 | Interconnecting of digital devices In some embodiments, a first conducting line, having a characteristic impedance, connects to a digital device while a second conducting line, also having a characteristic impedance, connects to another digital device. An impedance pathway connects the two conducting... | 04/03/2007 |
| 7176769 | Harmonic termination circuit for medium bandwidth microwave power amplifiers A compact amplifier output bias circuit is used as a broadband harmonic termination. The bias circuit is adapted as a harmonic termination circuit to produce an effective low impedance at the signal harmonic frequencies while having the capability of supplying DC po... | 02/13/2007 |
| 7138887 | Coupler with lateral extension A coupler is disclosed that includes first and second mutually coupled spirals or loops disposed on opposite sides of a dielectric substrate. The substrate may be formed of one or more layers and the loops may have a number of turns appropriate for a given applicati... | 11/21/2006 |
| 7123884 | RF switch A radio frequency (RF) switch which is used in an RF unit of a communication apparatus and which has less of an insertion loss during a transmission. A strip line disposed in the RF switch is formed by combining first and second strip lines having different values o... | 10/17/2006 |
| 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 |
| 7102459 | Power combiner A power combiner for the combining of symmetric and asymmetric traveling wave energy comprises a feed waveguide having an input port and a launching port, a reflector for reflecting launched wave energy, and a final waveguide for the collection and transport of laun... | 09/05/2006 |
| 7084716 | Ultrafast sampler with coaxial transition An ultrafast sampler includes a series of Schottky diodes configured with a coplanar waveguide to form a nonlinear transmission line (NLTL) that compresses a local oscillator input to form a series of strobe pulses. Strobe pulses of opposite polarity are capacitivel... | 08/01/2006 |
| 7075385 | Impedance converter device An impedance converter device comprises an electrically conductive external conductor with one or more connection locations for electrical lines, an electrically conductive internal conductor with one or more connection locations for electrical lines, and also a die... | 07/11/2006 |
| 7049907 | System and method for adjusting group delay A group delay adjusting circuit. The group delay adjusting circuit comprises an electronically adjustable variable capacitance, and an electronically variable virtual inductor coupled in parallel to the electronically variable capacitance at a node. ... | 05/23/2006 |
| 7046101 | Switchable RF power divider/combiner with switchable impedance matching elements An RF signal divider/combiner is provided for dividing a supplied RF signal to any number of up to N output ports. A switchable impedance matching network is provided to impedance match the divider according to the number of output ports connected. ... | 05/16/2006 |
| 7042309 | Phase inverter and coupler assembly A circuit assembly may include one or more coupler sections, and may include a phase inverter and/or a phase shifter. A coupler section may include a phase inverter. A coupler may include first and second mutually coupled spirals disposed on opposite sides of a diel... | 05/09/2006 |
| 7030715 | High-frequency semiconductor device There is provided a high-frequency GaAs power FET element with high performance, capable of suppressing an abnormal oscillation. Thin film resistors are provided so as to be connected electrically between incoming distributed constant lines connected electrically to... | 04/18/2006 |
| 7026888 | Broadband non-directional tap coupler A high power, non-directional tap coupler having low loss and expanded bandwidth using a novel airline coaxial line structure. Each of the main and secondary conductors forms a concentric structure of constant dimension over a substantial length inside a metallic ho... | 04/11/2006 |
| 7023295 | Transmission line having photonic band gap coplanar waveguide structure and method for fabricating power divider using the same A photonic band gap coplanar waveguide transmission line and a method for fabricating a power divider using the same capable of increasing a characteristic impedance, increasing a signal line width of the transmission line and providing high power, includes: a groun... | 04/04/2006 |
| 7009466 | Fault-tolerant power combining system A power combining system includes multiple amplifiers, a reactive combiner for combining the output power of the amplifiers and a short plate. Switches are used to electrically connect an output of each of the amplifiers to an input of the reactive combiner. In the ... | 03/07/2006 |
| 7005942 | Non-switching adaptable 4-way power splitter/combiner A 4-way power splitter/combiner circuit providing a plurality of transmission lines of selected impedance and phase shift to define four amplifier ports into which one to four amplifiers may be populated without reconfiguration of the circuit. The circuit provides a... | 02/28/2006 |
| 7002527 | Variable-directivity antenna and method for controlling antenna directivity A variable-directivity antenna comprises an omnidirectional antenna element, a transmission line connected to the antenna element, and an electric field adjusting structure provided in a boundary region between the antenna element and the transmission line. The elec... | 02/21/2006 |
| 6982613 | 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... | 01/03/2006 |
| 6972639 | Bi-level coupler A coupler is disclosed that includes first and second mutually coupled spirals disposed On opposite sides of a dielectric substrate. The substrate may be formed of one or more layers and the coils may have a number of turns appropriate for a given application. Condu... | 12/06/2005 |
| 6963255 | Power splitter A power splitter that has a small package size and repeatable electrical characteristics. The power splitter includes a low temperature co-fired ceramic (LTCC) substrate with several layers. Electrical components such as resistors and capacitors are integrated withi... | 11/08/2005 |
| 6919776 | Traveling wave device for combining or splitting symmetric and asymmetric waves A traveling wave device for the combining or splitting of symmetric and asymmetric traveling wave energy includes a feed waveguide for traveling wave energy, the feed waveguide having an input port and a launching port, a reflector for coupling wave energy between t... | 07/19/2005 |
| 6897739 | Waveguide power divider and combiner utilizing a resistive slot A compact inline waveguide power divider is provided that comprises a primary waveguide in communication with two parallel waveguides. The two parallel waveguides are stacked on top of one another and each parallel waveguide further comprises an output port. Accordi... | 05/24/2005 |
| 6870441 | Method for transforming bandpass filters to facilitate their production and resulting devices The invention concerns a method for optimizing elements of a narrow or intermediate band bandpass filter whereof the LC prototype has been determined. The invention is characterized in that it comprises steps which consist in: (i) breaking down several parallel or s... | 03/22/2005 |
| 6861923 | Power divider/combiner with a multilayer structure The invention relates to a power management arrangement which comprises, formed as a multilayer structure (100), several insulating layers (130, 132, 134, 136); several conductive layers (124, 126, 128) functioning as reference planes; a first p... | 03/01/2005 |
| 6844793 | Signal combiner, a signal splitter and a circuit using a combiner and a splitter A circuit is provided where impedance converters (41-48) are provided such that active components (P1 to P8) can be switched off without power from the other active components leaking away through those components which are switched off. ... | 01/18/2005 |
| 6838955 | Data processing device The invention relates to methods and structures for connecting circuits and circuit elements processing electrical signals having very fast transition times, including sub-nanosecond transition times. It includes a connecting structure for connecting a multiplicity ... | 01/04/2005 |
| 6784758 | Degenerate mode combiner A wave device for supporting electromagnetic waves, the device including a first pair of inputs for setting up a first standing wave therebetween a second pair of inputs for setting up a second standing wave therebetween and positioned such that the input signal of ... | 08/31/2004 |
