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| Number | Title | Issue Date |
| 8143970 | Phase shifter having a varying signal path length based on the rotation of the phase shifter Disclosed is a variable phase shifter, the variable phase shifter including: a fixed board which is fixedly provided in a housing, and consisting of a dielectric board, and consisting of a dielectric board, having a second transfer stripline having at least one arc-... | 03/27/2012 |
| 8138857 | Structure, structure and method for providing an on-chip variable delay transmission line with fixed characteristic impedance A design structure, structure, and method for providing an on-chip variable delay transmission line with a fixed characteristic impedance. A method of manufacturing a transmission line structure includes forming a signal line of the transmission line structure, form... | 03/20/2012 |
| 8072296 | Delay element with a perturber displaceable between first and second microstrip circuits A differential delay element for use, e.g., in selectively delaying RF signals in telecommunication systems includes a first microstrip circuit and a second microstrip circuit arranged side-by-side in a facing relationship. The first microstrip circuit defines a fir... | 12/06/2011 |
| 7692516 | Phase shifter with photonic band gap structure using ferroelectric thin film Provided are a phase shifter with a photonic band gap (PBG) structure using a ferroelectric thin film. The phase shifter includes a microstrip transmission line acting as a microwave input/output line and a plurality of tunable capacitors arranged in the microstrip ... | 04/06/2010 |
| 7642883 | Tuneable ferroelectric delay line having mirror image conductors A tunable electromagnetic delay line, comprising a first conductor with a first main direction of extension. The first conductor is arranged on top of a non-conducting substrate. The delay line additionally comprises a layer of a ferroelectric material with first an... | 01/05/2010 |
| 7623008 | Phase shifter comprising a coupling line for providing divided paths of different path lengths A first microstrip line 100 transmits a predetermined input signal. A coupling line includes a gap 120 along a transmitting direction of the input signal, and the gap 120 forms a plurality of paths having different path lengths. The input signal... | 11/24/2009 |
| 7561006 | Low loss electrical delay line A delay line system able to reduce the microwave loss by reducing the effective dielectric loss and dielectric constant of the system including a signal line, dielectric system with opened trench or slot filled up with the air or lower dielectric loss material, a gr... | 07/14/2009 |
| 7477116 | Phase shifters having a tunable dielectric layer and a resistive ink layer and method of manufacture therefore An embodiment of the present invention provides a phase shifter, comprising a substrate, resistive ink adjacent one surface of said substrate and separating a voltage tunable dielectric material from said surface of said substrate and a plurality of conductors adjac... | 01/13/2009 |
| 7417587 | Ferrite phase shifter and phase array radar system A phase shifter comprises a substrate, a ground plane formed on a first surface of the substrate, a support structure positioned on a second surface of the substrate opposite the first surface, three parallel, non-co-planar microstrip lines supported by the support ... | 08/26/2008 |
| 7369828 | Electronically tunable quad-band antennas for handset applications An electronically tunable quad-band antenna which includes a tunable high band antenna tuned by at least one tunable varactor associated therewith; the tunable high band antenna further includes a substrate, a patch element on said substrate, at least one voltage tu... | 05/06/2008 |
| 7365618 | High-frequency circuit device, high-frequency module, and communication apparatus A high-frequency circuit device, a high-frequency module, and a communication apparatus, which prevent generation of an undesired wave to prevent electrical power loss and undesired coupling, are provided. The high-frequency circuit device includes a first slot line... | 04/29/2008 |
| 7365695 | Antenna system An antenna system for sharing of operation employs contiguous transmit frequencies. Transmit frequencies are separated into non-contiguous sub-groups isolated from one another by filters 158(+) and 160(−) associated with positive and negative polaris... | 04/29/2008 |
| 7358833 | Method and apparatus for signal processing using electrowetting An apparatus comprising a tuning device having at least one control electrode and a ground electrode located over a substrate and an electrically conductive fluid in contact with the control and ground electrodes. The tuning device also has at least one electrical t... | 04/15/2008 |
| 7355492 | Electronically controlled hybrid digital and analog phase shifter The inventions presented herein provide a electronically controlled phase shifters that incorporate analog and digital phase shift architectures in a novel manner that realizes the best advantages of each architecture. This combination of complementary phase shift a... | 04/08/2008 |
| 7351120 | Adjustable impedance electrical connector Disclosed is an adjustable electrical connector. The connector includes a moveable structure including a plurality of return signal conductors disposed on a moveable block, and a fixed structure including a plurality of signal conductors. Each signal return conducto... | 04/01/2008 |
| 7336143 | Variable delay line using variable reactance devices to provide reflected delay signals First and second reactance parts are connected with the first and second output terminals of a hybrid coupler. The first and second reactance parts have a substantially identical reactance X. ... | 02/26/2008 |
| 7332983 | Tunable delay line using selectively connected grounding means A tunable delay line system includes a stripline and a plurality of cross-over lines. The stripline defines a propagation delay characteristic. The plurality of cross-over lines are each spaced from and extend with an orientation that is nonparallel with the stripli... | 02/19/2008 |
| 7327208 | Printed circuit board including a notch filter for attenuating radio frequency interference A printed circuit board (PCB) including a notch filter, or other suitable filter, is implemented in a communication device for attenuating RFI in transmissions sent from the communication device. The filter includes filter line that runs between at least two conduct... | 02/05/2008 |
| 7324043 | Phase shifters deposited en masse for an electronically scanned antenna A system and method for an electronically scanned antenna is provided in which phase shifters are deposited en masse along with other electronically scanned antenna components on a wafer scale substrate using a thin film process. Alternative wafer scale sizes may be... | 01/29/2008 |
| 7314842 | Substituted barium titanate and barium strontium titanate ferroelectric compositions This invention provides the three novel La,Fe, La,Cr and Sm,Fe substituted barium titanate solid solution ferroelectric compositions with the formula Ba1-xLnxTi1-xMxO3 wherein when Ln is La, M is Fe or Cr, when ... | 01/01/2008 |
| 7315225 | Phase shifter providing multiple selectable phase shift states A single-structure, two-bit phase shifter useful for steering the beam of an antenna such as an aeronautical antenna. The phase shifter includes an input line, an output line, a plurality of switched lines such as quarter-wavelength microstrip lines connected direct... | 01/01/2008 |
| 7312763 | Wafer scale beam forming antenna module with distributed amplification In one embodiment, a wafer scale antenna array is provided that includes: a substrate, a first plurality of antennas adjacent to the substrate; and a driving network adjacent the substrate for transmitting RF signals to the plurality of antennas and for receiving RF... | 12/25/2007 |
| 7307045 | Signal switching device A signal switching device is disclosed that is capable of transmitting signals with less signal loss while securing a good isolation characteristic. The signal switching device includes a first section formed from a superconducting material connected to a first tran... | 12/11/2007 |
| 7301422 | Variable differential phase shifter having a divider wiper arm A variable differential phase shifter including an isolation element providing good isolation between output ports, good return loss and reduced reflections. In one embodiment a Wilkinson divider is incorporated in the wiper arm of a wiper type variable differential... | 11/27/2007 |
| 7298233 | Panel antenna with variable phase shifter A panel antenna having a variable phase shifter module with at least one main-PCB having an input trace coupled to a wiper junction. An arcuate trace on the main-PCB extending between a first output trace and a second output trace, the arcuate trace having an arc ce... | 11/20/2007 |
| 7292454 | System and method for optimizing printed circuit boards to minimize effects of non-uniform dielectric A system and method for minimizing the effects of non-uniform dielectric properties includes forming traces on printed circuit boards (PCB) where the fibers within the printed circuit boards are non-rectangular with respect to the rectangular edges of the circuit bo... | 11/06/2007 |
| 7292124 | Variable resonator and variable phase shifter A variable resonator is provided which comprises signal conductor 13 formed on top side surface of dielectric substrate 12, ground conductor layer 11 formed on back side surface thereof and switches 14, wherein signal conductor comprises ... | 11/06/2007 |
| 7281326 | Technique for routing conductive traces between a plurality of electronic components of a multilayer signal routing device Techniques for reducing the number of layers in a multilayer signal routing device are disclosed. The technique may be realized as a method for routing one or more conductive traces between a plurality of electronic components of a multilayer signal routing device. ... | 10/16/2007 |
| 7283015 | Device for impedance matching radio frequency open wire transmission lines An impedance matching device comprises a dielectric material having a ground plane affixed to one surface, a microstripline conductor disposed on an opposite surface, and a movable dielectric plate. The movable dielectric plate has a higher dielectric constant than ... | 10/16/2007 |
| 7274331 | Phase-shifting system using a displaceable dielectric and phase array antenna comprising such a phase-shifting system A phase-shifting system for electrically swiveling the direction of a beam of an antenna field includes several radiators with two planes of polarization. The phase-shifting system includes two jointly changeable phase shifters with microstrip lines associated there... | 09/25/2007 |
| 7268643 | Apparatus, system and method capable of radio frequency switching using tunable dielectric capacitors An embodiment of the present invention provides an apparatus, comprising a radio frequency switch capable of using tunable dielectric capacitors as the switching element. The apparatus may further comprise a cross connector connecting a plurality of ports and wherei... | 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 |
| 7259641 | Microelectromechanical slow-wave phase shifter device and method The present invention provides a method and apparatus for a monolithic device utilizing cascaded, switchable slow-wave CPW sections that are integrated along the length of a planar transmission line. The purpose of the switchable slow-wave CPW sections elements is t... | 08/21/2007 |
| 7253782 | Phase shifting device This invention relates to a phase shifting device, which generally comprises of rigid chassis, in the form of an aluminum plate, which can form a ground plane for feed lines (12) printed on a printed circuit board (16), which is mounted on the chassis,... | 08/07/2007 |
| 7245184 | High frequency power amplifier circuit, high frequency power amplifier electronic component and method thereof A high frequency power amplifier electronic component (RF power module) is so constituted as to apply bias to an amplifier FET in current mirror configuration. In this RF power module, deviation of a bias point due to the short channel effect of the FET is corrected... | 07/17/2007 |
| 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 |
| 7242265 | Element of parallel flat plate line type, a circuit board An element of parallel flat plate line type suitable for operation at a higher speed and with a higher frequency is provided. The element is characterized by including a first metallic member 1 including a flat plate section 11 and a projected section ... | 07/10/2007 |
| 7242272 | Methods and apparatus based on coplanar striplines Methods and apparatus involving semiconductor devices based on coplanar striplines (CPS). In one example, high-speed microelectronic devices based on coplanar stripline implementations support differential signals in a range of approximately from 1 Gigahertz to at l... | 07/10/2007 |
| 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 |
| 7233217 | Microstrip phase shifter A phase shifter adjusts the phase between two segments of an RF feed line that are fed with the phase shifter. Specifically, the phase shifter adjusts the phase between two signals in RF feed line segments by changing the electrical path lengths that RF energy trave... | 06/19/2007 |
