Class / Patent application number | Description | Number of patent applications / Date published |
333112000 | Having lumped parameters or impedances | 21 |
20090009260 | DIRECTIONAL COUPLERS FOR RF POWER DETECTION - Very small size true directional couplers have a coupling coefficient that is independent on load VSWR. The coupler uses coupled inductors with a compensation circuit including a resistor and a capacitor, or just a capacitor. Wideband operation is suitable for many portable applications such as power detection and control for GSM, DCS-PCS, CDMA/WCDMA, Bluetooth, and WLAN systems. | 01-08-2009 |
20090051462 | HF Coupler or HF Power Splitter, Especially a Narrow-Band and/or 3DB Coupler or Power Splitter - An improved HF coupler or HF power splitter comprises four connection lines arranged on the same side of the substrate. Two coupling zones are formed on the substrate on two opposite sides; the second coupling zone is connected to the associated connection lines arranged on the side of the substrate opposing the coupling zone, by means of two via holes in an electroplated manner. The capacitors provided at the beginning and at each end of each coupling zone are respectively embodied as interdigital capacitors; and the capacitors are respectively coupled to earth. | 02-26-2009 |
20100109797 | HIGH-PERFORMANCE COUPLER - A high-load coupler with a first input port, which is connected via a first stripline to an output port, and with at least one second input port, which is connected to an absorber, which provides at least one second stripline, a coupling portion and a connection portion. The at least one second input port is connected via at least one second stripline directly to the absorber. The at least one second stripline is designed as a middle conductor of a triplate line and the absorber is disposed on a thermally-conductive surface of a cooling-medium pipe. The cooling-medium pipe is connected to one housing half. | 05-06-2010 |
20100182098 | Directional Coupler with Inductively-Compensated Sharpness of Directivity - A directional coupler provides at least two coupled lines, at least three ports and at least one inductor. A high-frequency signal is transmitted from the first coupled line to the second coupled line. The circuit is constructed in stripline technology. In this context, the second coupled line provides a forward path and a return path, which are connected to a port. An inductor is connected in series to the return path. | 07-22-2010 |
20100321128 | TRANSCEIVING CIRCUIT FOR CONTACTLESS COMMUNICATION - A transceiving circuit ( | 12-23-2010 |
20110095842 | Method and System for Processing Signals Via Directional Couplers Embedded in an Integrated Circuit Package - Methods and systems for processing signals via directional couplers embedded in a package are disclosed and may include generating via a directional coupler, one or more output RF signals that may be proportional to a received RF signal. The directional coupler may be integrated in a multi-layer package. The generated RF signal may be processed by an integrated circuit electrically coupled to the multi-layer package. The directional coupler may include quarter wavelength transmission lines, which may include microstrip or coplanar structures. The directional coupler may be electrically coupled to one or more variable capacitances in the integrated circuit. The variable capacitance may include CMOS devices in the integrated circuit. The directional coupler may include discrete devices, which may be surface mount devices coupled to the multi-layer package or may be devices integrated in the integrated circuit. The integrated circuit may be flip-chip bonded to the multi-layer package. | 04-28-2011 |
20110109402 | POWER COMBINERS AND DIVIDERS BASED ON COMPOSITE RIGHT AND LEFT HANDED METAMATERIAL STURCTURES - Techniques, apparatus and systems that use composite left and right handed (CRLH) metamaterial structures to combine and divide electromagnetic signals at multiple frequencies. The metamaterial properties permit significant size reduction over a conventional N-way radial power combiner or divider. Dual-band serial power combiners and dividers and single-band and dual-band radial power combiners and dividers are described. | 05-12-2011 |
20110128091 | COUPLER - The invention provides couplers that are thinner and smaller in size and still satisfy the required various properties of the couplers. | 06-02-2011 |
20120161898 | ON-DIE RADIO FREQUENCY DIRECTIONAL COUPLER - A directional coupler with increased directivity is disclosed. There is an input port, an output port, a coupled port, and a ballasting port. A first transmission element has a first connection to the input port and a second connection to the output port, and a second transmission element has a first connection to the coupled port and a second connection to the ballasting port. A first compensation capacitor is connected to the input port and the coupled port, and a second compensation capacitor is connected to the input port and the ballasting port. | 06-28-2012 |
20120306589 | DIRECTIONAL COUPLER - The disclosure provides a directional coupler having favorable characteristics even when a parasite inductance is present on a coupling line. The directional coupler includes resistive elements between at least either a signal input port and a coupling port or between a signal output port and an isolation port. The resistive elements can reduce the output from the ISO port and improve directivity. | 12-06-2012 |
20120319797 | DIRECTIONAL COUPLER - A directional coupler used in a predetermined frequency band includes a main line connected between a first terminal and a second terminal. A first sub line is connected to a third terminal and is electromagnetically coupled to the main line. A second sub line is connected to a fourth terminal and is electromagnetically coupled to the main line. A low pass filter is connected between the first sub line and the second sub line and causes a phase shift to be generated in a passing signal passing therethrough in such a manner that the phase shift monotonically increases within a range from about 0 to about 180 degrees with increasing frequency in the predetermined frequency band. | 12-20-2012 |
20130106529 | ELECTRONIC COMPONENT | 05-02-2013 |
20130141184 | DIRECTIONAL COUPLER - In a directional coupler, sub-lines or main lines are electromagnetically coupled to each other to degrade isolation characteristics. A capacitor is located between the sub-lines or between the main lines to cause the isolation characteristics to have poles in order to improve the isolation characteristics of the directional coupler. | 06-06-2013 |
20130194054 | COMBINED DIRECTIONAL COUPLER AND IMPEDANCE MATCHING CIRCUIT - An output circuit with an integrated directional coupler and impedance matching circuit is disclosed. In an exemplary design, an apparatus includes a switchplexer and an output circuit. The switchplexer is coupled to at least one power amplifier. The output circuit is coupled to the switchplexer and a load (e.g., an antenna) and includes a directional coupler and an impedance matching circuit sharing at least one inductor. The output circuit performs impedance matching for the load. The output circuit also acts as a directional coupler and provides an input radio frequency (RF) signal as an output RF signal and further couples a portion of the input RF signal as a coupled RF signal. Reusing the at least one inductor for both the directional coupler and the impedance matching circuit may reduce circuitry, size, and cost of the wireless device and may also improve performance. | 08-01-2013 |
20130307635 | INTEGRATED DIRECTIONAL COUPLER WITHIN AN RF MATCHING NETWORK - A directional coupler utilizes an inductive element of a power amplifier and a coupled conductive element. The inductive element of the power amplifier is a functioning element within the power amplifier and at least part of the inductive element of the power amplifier is disposed in a multi-layer substrate. At least part of the coupled conductive element is disposed in the multi-layer substrate. The coupled conductive element is configured to be inductively coupled to the inductive element of the power amplifier such that the coupled conductive element carries a first RF signal that is representative of a second RF signal within the inductive element of the power amplifier. | 11-21-2013 |
20140306778 | MINIATURE RADIO FREQUENCY DIRECTIONAL COUPLER FOR CELLULAR APPLICATIONS - A directional coupler with increased directivity and reduced overall footprint area is disclosed. There is an input port, an output port, a coupled port, and a ballasting port. A primary chain of serially connected inductors is connected to the input port and the output port, while a secondary chain of serially connected inductors is connected to the coupled port and the ballasting port. A first compensation capacitor is connected to the input port and the coupled port, and a second compensation capacitor is connected to the input port and the ballasting port. | 10-16-2014 |
20150042412 | DIRECTIONAL COUPLER CIRCUIT TECHNIQUES - Techniques for efficiently integrating directional coupler circuitry with other circuit elements of an RF front end. In an aspect, one or more inductors of an RF front end filter is incorporated into a first inductor of the directional coupler, and a capacitor is further coupled in parallel with the first inductor. In another aspect, circuitry associated with matching components of the RF front end may further be incorporated into the directional coupler design. Further techniques are provided for coupling directivity tuning elements to a second inductor of the directional coupler to improve the linearity of the coupler over other tuning techniques. | 02-12-2015 |
20150301550 | Parametric Power Multiplication - In various embodiments, power multipliers and associated methods are provided that employ parametric excitation. In one embodiment, a ring power multiplier is provided that has a ring. A parametric reactance is associated with the ring that negates at least a portion of a physical resistance of the ring. | 10-22-2015 |
20150381134 | ELECTRONIC COMPONENT - An electronic component includes an input port, a first output port, a ground port, a first capacitor and a second capacitor that are electrically connected in series to one another in a path between the input port and the first output port, a first inductor connected between the ground port and a portion of the path between the input port and the first output port, a second inductor electrically connected in parallel to the second capacitor, and a first sub line, wherein the second inductor and the first sub line define a first directional coupler by generating electromagnetic coupling therebetween. | 12-31-2015 |
20160028146 | ZERO INSERTION LOSS DIRECTIONAL COUPLER FOR WIRELESS TRANSCEIVERS WITH INTEGRATED POWER AMPLIFIERS - A zero insertion loss directional coupler includes an input port, an antenna port, an isolation port, and a detect port. The coupler has a first signal trace, a second signal trace, and an inductive winding. The first signal trace is on one of two layers and is connected to the input port and the antenna port, while the inductive winding is on another one of the two layers. A first terminal of the inductive winding is connected to the isolation port. A first terminal of the second signal trace is connected to the detect port and a second terminal of the second signal trace is connected to a second terminal of the inductive winding. | 01-28-2016 |
20160065167 | RECONFIGURABLE DIRECTIONAL COUPLER - This disclosure relates generally to directional couplers. In one embodiment, a directional coupler includes a first port, a second port, a third port, a first inductive element, a second inductive element, a first switchable path, and a second switchable path. The first inductive element is coupled between the first port and the second port, while the second inductive element is mutually coupled to the first inductive element. The first switchable path is configured to be opened and closed, wherein the first switchable path is coupled between a first location of the second inductive element and the third port. The second switchable path is configured to be opened and closed, wherein the second switchable path is coupled between a second location of the second inductive element and the third port. In this manner, a directivity of the directional coupler can be switched between a forward direction and a reverse direction. | 03-03-2016 |