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| Number | Title | Issue Date |
| 8072290 | Method and system for generating quadrature signals utilizing an on-chip transformer Aspects of a method and system for generating quadrature signals utilizing an on-chip transformer are provided. In this regard, a pair of phase-quadrature signals may be generated from a single-phase signal via a transformer, one or more variable capacitors, and one... | 12/06/2011 |
| 8072289 | Composite right/left (CRLH) couplers High-frequency couplers and coupling techniques are described utilizing artificial composite right/left-handed transmission line (CRLH-TL). Three specific forms of couplers are described; (1) a coupled-line backward coupler is described with arbitrary tight/loose co... | 12/06/2011 |
| 7696841 | Power amplifier utilizing quadrature hybrid for power dividing, combining and impedance matching A power amplifier includes a quadrature hybrid and input impedance matching network. The power amplifier also includes at least one amplifier that includes an output electrode, and a quadrature hybrid and output impedance matching network. The quadrature hybrid and ... | 04/13/2010 |
| 7675384 | Composite right/left handed (CRLH) hybrid-ring couplers High-frequency couplers and coupling techniques are described utilizing artificial composite right/left-handed transmission line (CRLH-TL). Three specific forms of couplers are described; (1) a coupled-line backward coupler is described with arbitrary tight/loose co... | 03/09/2010 |
| 7667555 | Composite right/left handed (CRLH) branch-line couplers High-frequency couplers and coupling techniques are described utilizing artificial composite right/left-handed transmission line (CRLH-TL). Three specific forms of couplers are described; (1) a coupled-line backward coupler is described with arbitrary tight/loose co... | 02/23/2010 |
| 7508283 | Composite right/left handed (CRLH) couplers High-frequency couplers and coupling techniques are described utilizing artificial composite right/left-handed transmission line (CRLH-TL). Three specific forms of couplers are described; (1) a coupled-line backward coupler is described with arbitrary tight/loose co... | 03/24/2009 |
| 7323950 | Balanced hybrid coupler network An electrical processing network including a first set of ports and a second set of ports electrically coupled to the first set of ports. The first set of ports are for a first set of signals with approximately 0° and 180° relative phase. The second set of ports a... | 01/29/2008 |
| 7199679 | Baluns for multiple band operation A small size, low cost balun is formed on a substrate, such as gallium arsenide, as an integrated passive device. Multiple baluns are formed on a same substrate, allowing multi-band operation. For example, symmetrical transformers are provided for two different band... | 04/03/2007 |
| 7176768 | Balanced high-frequency device and balanced high-frequency circuit using the same A balanced high-frequency device includes a balanced element; at least one balanced terminal connected to the balanced element; a phase circuit having at least first, second, and third impedance elements, and electrically connected between the balanced element and t... | 02/13/2007 |
| 7154440 | Phase array antenna using a constant-gain phase shifter A constant-gain phase shifter is provided, comprising a first tank circuit with a first node to accept an input signal, a first inductor connected between the first node and a reference voltage, and a first capacitor connected in parallel with the first inductor. Th... | 12/26/2006 |
| 7136429 | Passive redundant digital data receiver with dual comparator edge detection A passive coupling structure constructed using printed circuit board traces is used to separate the low and high frequency components of an incoming digital signal. The low and high frequency components of the signal are sent to separate receivers on an integrated c... | 11/14/2006 |
| 7135917 | Left-handed nonlinear transmission line media A left-handed nonlinear transmission line system has multiple nonlinear capacitors connected in series between input and output terminals and multiple inductances connected in parallel between the nonlinear capacitors and a return conductor extending between the inp... | 11/14/2006 |
| 7084717 | Quadrature hybrid circuit In a quadrature hybrid circuit which has first and second two-port circuits 11 and 12 inserted between I/O ports P1 and P2 and between I/O ports P4 and P3, respectively, and third and fourth two-port circuits inserted betwee... | 08/01/2006 |
| 7068734 | Passive redundant digital data receiver with schmitt-trigger A passive coupling structure constructed using printed circuit board traces is used to separate the low and high frequency components of an incoming digital signal. The low and high frequency components of the signal are sent to separate receivers on an integrated c... | 06/27/2006 |
| 7042310 | High-pass branch of a frequency separating filter for ADSL systems The invention relates to a high-pass branch (7) of a frequency separating filter for ADSL systems comprising inductive components (11, 14) which dispose of magnet cores made of a soft magnetic amorphous or nanocrystalline. As a result, frequency separa... | 05/09/2006 |
| 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 |
| 7030714 | Method and apparatus to match output impedance of combined outphasing power amplifiers Briefly, an apparatus having a first capacitor-inductor-capacitor impedance converter operably coupled to a second capacitor-inductor-capacitor impedance converter. The first and second capacitor-inductor-capacitor impedance converter may combine a first and second ... | 04/18/2006 |
| 7030713 | Miniature high performance coupler A coupler that has a small package size and is adjustable after manufacturing. A coupler has a substrate with several dielectric layers and a top and bottom surface. A ground plane is located on the top surface and another ground plane is located on the bottom surfa... | 04/18/2006 |
| 7005726 | Semiconductor device with an improved transmission line A semiconductor device with integrated circuits includes superimposed layers provided at different levels on a substrate, and including a metal strip (3) formed in a reference layer and through which an electric current passes, a metal ground plane (4)... | 02/28/2006 |
| 6965280 | Three way power splitter A three way power splitter that has a small package size. The three way power splitter includes a multi-layered low temperature co-fired ceramic substrate. An input transformer and three output transformers are attached to the top of the substrate. The transformers ... | 11/15/2005 |
| 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 |
| 6963256 | Low cost splitter A low cost power splitter that has a small size and can be used with automated surface mount manufacturing equipment. The power splitter includes a case having a cavity and a lead mounting surface. Leads are secured to the lead mounting surface. A substrate is mount... | 11/08/2005 |
| 6946924 | Low noise voltage controlled oscillator A voltage controlled oscillator, comprising a pair of transistors connected to a tank circuit, said tank circuit including a plurality of tuning diodes connected in parallel with an inductor, said tuning diodes having cathodes connected to a common connection. ... | 09/20/2005 |
| 6919775 | Network coupler For a network coupler for network users in a network comprising at least two lines, a simultaneous data and energy transfer is ensured in that the network coupler is formed in such a way that it is suitable for data transfer via the two lines (1, 2) of the ne... | 07/19/2005 |
| 6806790 | Miniature 180 degree 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 (LTTC) substrate with several layers. Electrical components such as resistors, capacitors and ground planes are i... | 10/19/2004 |
| 6784521 | Directional coupler A directional coupler that has a small package size and repeatable electrical characteristics. The directional coupler includes a low temperature co-fired ceramic (LTCC) substrate with several layers. Electrical components such as resistors and capacitors are integr... | 08/31/2004 |
| 6774743 | Multi-layered spiral couplers on a fluropolymer composite substrate A microwave circuit utilizes a spiral-like coupler configuration to achieve the functionality of a traditional coupler with higher density and lower volume. A plurality of substrate layers having metal layers disposed on them are bonded to form the package. A plural... | 08/10/2004 |
| 6771142 | Network coupler For a network coupler for network users in a network comprising at least two lines, a simultaneous data and energy transfer is ensured in that the network coupler is formed in such a way that it is suitable for data transfer via the two lines (1, 2) of the ne... | 08/03/2004 |
| 6765455 | Multi-layered spiral couplers on a fluropolymer composite substrate A microwave circuit utilizes a spiral-like coupler configuration to achieve the functionality of a traditional coupler with higher density and lower volume. A plurality of substrate layers having metal layers disposed on them are bonded to form the package. A plural... | 07/20/2004 |
| 6720933 | Dual band satellite communications antenna feed An antenna feed that transmits in a single vertical or horizontal linear polarization at commercial Ka-band while simultaneously receiving both vertical and horizontal polarizations at commercial KU-band is presented. The antenna feed includes a metal feed horn, an ... | 04/13/2004 |
| 6693499 | Compact lumped element ring balun layout A lumped element ring balun (60) including elements patterned on a monolithic substrate (62) in a compact design. The balun (60) includes four inductors (64, 66, 68, 70) and a plurality of capacitors (190, 192, 198, 202, 214, 226) electrically coupled tog... | 02/17/2004 |
| 6522221 | Phase shifter, attenuator, and nonlinear signal generator A phase shifter includes first and second high-frequency impedance elements and first and second high-frequency phase shifting elements. The first high-frequency impedance element is connected between an input port and an output port and has an impedance ... | 02/18/2003 |
| 6512423 | Printed board, method for producing the same, and electronic device having the same A printed board having a structure for equalizing propagation times on transmission lines connecting the same pair of circuit elements at several terminals. The structure controls each propagation delay by connecting each transmission line partially in di... | 01/28/2003 |
| 6317013 | Delay line filter A filter, for use with a delay compensating circuit in a delay line filter, formed from co-located capacitors. The capacitors may be formed as traces disposed on a circuit card and co-located to provide capacitive coupling to each other and ground. Proxim... | 11/13/2001 |
| 6140887 | Wide band directional coupler A wide band directional coupler of the type using ferrite cores and discrete winding in which a special winding method and its position on the core improves coupling flatness, directivity, as well as input and output VSWR.... | 10/31/2000 |
| 6078299 | Multi-phase coupler with a noise reduction circuit A multi-phase coupler including a noise reduction circuit which provides two output signals which are separately shifted in phase with respect to an input radio frequency (RF) signal. The input RF signal is capacitively phase-shifted to lead the phase of ... | 06/20/2000 |
| 6025760 | Tool for shunting a cable multi-tap A tool is described for shunting a multi-tap for an RF cable system by connecting a low-pass filter between an unused input port and an unused output port of the multi-tap. The components of the filter are such as not to interfere with the circuits of the... | 02/15/2000 |
| 5929722 | Low-pass filter laminated with a power detection coil A low-pass filter having, a parallel circuit of a first coil and a first capacitor disposed between an input terminal and an output terminal; and a second capacitor disposed between the input terminal and ground. Also included is a third capacitor dispose... | 07/27/1999 |
| 5886591 | Device including a passive coupler circuit phase shifting through 180° A device includes a passive coupler circuit with lumped elements for coupling a first A.C. signal having a given center frequency (fo) present on a first primary port (P1) to two second A.C. signals phase shifted through 180° present on two secondary por... | 03/23/1999 |
| 5650756 | High frequency signal dividing and/or combining device A high frequency signal dividing and/or combining device includes a circuit formed in a laminated sintered dielectric block, input and output terminals grounded through input and output grounding capacitors respectively, inductors (coils) and a resistor. ... | 07/22/1997 |
