| PARATEK MICROWAVE, INC. Patent applications |
| Patent application number | Title | Published |
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| 20120119844 | TUNABLE MICROWAVE DEVICES WITH AUTO-ADJUSTING MATCHING CIRCUIT - A variable impedance circuit includes a matching network for coupling to a tunable device, where the matching network has a first port and a second port, where the tunable device is coupled to one of the first port or the second port, and where the matching network has one or more variable dielectric capacitors. The one or more variable dielectric capacitors can be operable to receive a first of one or more variable voltage signals to cause the one or more variable dielectric capacitors to change a first impedance of the matching network. The tunable device can be operable to receive a second of one or more variable voltage signals to cause a change in a second impedance of the tunable device. | 05-17-2012 |
| 20120119843 | TUNABLE MICROWAVE DEVICES WITH AUTO ADJUSTING MATCHING CIRCUIT - An impedance matching circuit includes a matching network for coupling to a variable load, where the matching network has a first port and a second port, and where the variable load is coupled to one of the first port or the second port. The matching network can have one or more variable dielectric capacitors, where the one or more variable dielectric capacitors are operable to receive one or more variable voltage signals to cause the one or more variable dielectric capacitors to change an impedance of the matching network, and where the change in the impedance of the matching network causes an increase in power transferred from the first port to the second port or from the second port to the first port. | 05-17-2012 |
| 20120112852 | METHOD AND APPARATUS FOR TUNING ANTENNAS IN A COMMUNICATION DEVICE - A system that incorporates teachings of the present disclosure may include, for example, a process for obtaining a first operational metric for a transmitter of a communication device, determining a range of impedances based on the first operational metric where the range of impedances is associated with an acceptable level of performance for the communication device, obtaining a second operational metric for the transmitter, determining a target impedance within the range of impedances based on the second operational metric, and tuning a first impedance matching network based on the target impedance, where the first impedance matching network is coupled with a first antenna of the communication device, and where the tuning is based on adjusting a first variable component of the first impedance matching network. Additional embodiments are disclosed. | 05-10-2012 |
| 20120112851 | METHOD AND APPARATUS FOR TUNING ANTENNAS IN A COMMUNICATION DEVICE - A system that incorporates teachings of the present disclosure may include, for example, a matching network for a communication device having first and second antennas, where the matching network includes a first variable component connectable and a detector. The first variable component can be connectable along a first path between the first antenna and a front end module of the communication device, where the first antenna is configured for transmit and receive operation. The detector can be connectable along a second path between the second antenna and the front end module of the communication device, where the detector obtains an RF voltage associated with the second path, where the second antenna is configured for a diversity receive operation, and where the first variable component is adjusted based on the detected RF voltage to tune the matching network. Additional embodiments are disclosed. | 05-10-2012 |
| 20120058739 | Adaptive Impedance Matching Module (AIMM) Control Architectures - A system that incorporates teachings of the present disclosure can include, for example, determining from nodal voltages sampled at an input port of a matching network an impedance of a variable load coupled to an output port of the matching network, generating at least one control signal according to the nodal voltage, and tuning the matching network with the at least one control signal. Additional embodiments are disclosed. | 03-08-2012 |
| 20120056689 | METHODS FOR TUNING AN ADAPTIVE IMPEDANCE MATCHING NETWORK WITH A LOOK-UP TABLE - Methods for generating a look-up table relating a plurality of complex reflection coefficients to a plurality of matched states for a tunable matching network. Typical steps include measuring a plurality of complex reflection coefficients resulting from a plurality of impedance loads while the tunable matching network is in a predetermined state, determining a plurality of matched states for the plurality of impedance loads, with a matched state determined for each of the plurality of impedance loads and providing the determined matched states as a look-up table. A further step is interpolating the measured complex reflection coefficients and the determined matching states into a set of complex reflection coefficients with predetermined step sizes. | 03-08-2012 |
| 20110304408 | METHOD AND APPARATUS FOR ADAPTIVE IMPEDANCE MATCHING - A system that incorporates teachings of the present disclosure may include, for example, an adaptive impedance matching network having an RF matching network coupled to at least one RF input port and at least one RF output port and comprising one or more controllable variable reactive elements. The RF matching network can be adapted to reduce a level of reflected power transferred from said at least one input port by varying signals applied to said controllable variable reactive elements. The one or more controllable variable reactive elements can be coupled to a circuit adapted to map one or more control signals that are output from a controller to a signal range that is compatible with said one or more controllable variable reactive elements. Additional embodiments are disclosed. | 12-15-2011 |
| 20110254638 | METHOD AND APPARATUS FOR MANAGING INTERFERENCE IN A COMMUNICATION DEVICE - A system that incorporates teachings of the present disclosure may include, for example, a matching network including a tunable reactance circuit configured to be coupled to at least one of a transmitter portion and a receiver portion of a communication device, where the tunable reactance circuit is adjustable to a plurality of tuning states, and where the determination of a tuning state is based on whether detected signal measurements are determined to be invalid and is based on information from at least one of an open-loop or closed-loop feedback configuration of the tunable reactance circuit. Additional embodiments are disclosed. | 10-20-2011 |
| 20110254637 | METHOD AND APPARATUS FOR MANAGING INTERFERENCE IN A COMMUNICATION DEVICE - A system that incorporates teachings of the present disclosure may include, for example, a matching network including a tunable reactance circuit configured to be coupled to at least one of a transmitter portion and a receiver portion of a communication device, wherein the tunable reactance circuit is adjustable to a plurality of tuning states, and wherein the determination of a tuning state is based on parameters associated with a detected interference. Additional embodiments are disclosed. | 10-20-2011 |
| 20110250852 | Tuning Matching Circuits for Transmitter and Receiver Bands as a Function of Transmitter Metrics - A non-transitory computer-readable storage medium includes computer instructions to determine a translation function based on a transmit frequency of a transmit mode and a receive frequency of a receive mode of a transceiver for a communication device, and adjust a variable reactance component of an impedance matching circuit for the receive mode based on the translation function, where the impedance matching circuit is operably coupled with an antenna of the communication device. Other embodiments are disclosed. | 10-13-2011 |
| 20110227666 | METHOD AND APPARATUS FOR ADAPTING A VARIABLE IMPEDANCE NETWORK - The present disclosure may include, for example, a tunable capacitor having a decoder for generating a plurality of control signals, and an array of tunable switched capacitors comprising a plurality of fixed capacitors coupled to a plurality of switches. The plurality of switches can be controlled by the plurality of control signals to manage a tunable range of reactance of the array of tunable switched capacitors. Additionally, the array of tunable switched capacitors is adapted to have non-uniform quality (Q) factors. Additional embodiments are disclosed. | 09-22-2011 |
| 20110170226 | CAPACITORS ADAPTED FOR ACOUSTIC RESONANCE CANCELLATION - An embodiment of a tunable capacitor can include a plurality of capacitors connected in series where at least two capacitors of the plurality of capacitors share a common electrode where the at least two capacitors are in lateral proximity and a bias that is capable of being applied to the at least two capacitors whereby the at least two capacitors vibrate in opposite phase to each other when the bias and an RF signal is applied to the at least two capacitors. | 07-14-2011 |
| 20110086630 | METHOD AND APPARATUS FOR MANAGING OPERATIONS OF A COMMUNICATION DEVICE - A system that incorporates teachings of the present disclosure may include, for example, a communication device having a controller to provision a matching network that controls one or more operational characteristics of one of a receiver portion and a transmitter portion of the communication device according to a profile describing one or more characteristics of a communication system from which the communication device operates. Additional embodiments are disclosed. | 04-14-2011 |
| 20110063042 | TUNABLE MICROWAVE DEVICES WITH AUTO-ADJUSTING MATCHING CIRCUIT - An embodiment of the present invention provides an apparatus, comprising an input port and a dynamic impedance matching network capable of determining a mismatch at the input port and dynamically changing the RF match by using at least one matching element that includes at least one voltage tunable dielectric capacitor. The matching network may be a “Pi”, a “T”, or “ladder” type network and the apparatus may further comprise at least one directional coupler capable of signal collection by sampling a portion of an incident signal, a reflected signal or both. In an embodiment of the present invention, the apparatus may also include a control and power control & logic unit (PC LU) to convert input analog signals into digital signals and sensing VSWR phase and magnitude and processing the digital signals using an algorithm to give it a voltage value and wherein the voltage values may be compared to values coming from the coupler and once compared and matched, the values may be passed to a Hi Voltage Application Specific Integrated Circuit (HV ASIC) to transfer and distribute compensatory voltages to the matching network elements. Additional embodiments are disclosed. | 03-17-2011 |
| 20110053524 | METHOD AND APPARATUS FOR CALIBRATING A COMMUNICATION DEVICE - A system that incorporates teachings of the present disclosure may include, for example, a computer-readable storage medium having computer instructions to perform actual measurements of one or more performance parameters of a communication device according to a subset of tuning states of a tunable matching network operable in a communication device, determine estimated measurements of the one or more performance parameters of the communication device for a portion of the tuning states not included in the subset of tuning states according to the actual measurements, identify a data set for each of the one or more performance parameters from at least portions of the tuning states and the actual and estimated measurements, and determine from at least a portion of the date sets one or more tuning states that achieve at least one desirable performance characteristic of the communication device. Additional embodiments are disclosed. | 03-03-2011 |
| 20110043298 | System for establishing communication with a mobile device server - An embodiment of the present invention provides an apparatus, comprising an RF matching network connected to at least one RF input port and at least one RF output port and including one or more voltage or current controlled variable reactive elements; a voltage detector connected to the at least one RF output port via a variable voltage divider to determine the voltage at the at least one RF output port and provide voltage information to a controller that controls a bias driving circuit which provides voltage or current bias to the RF matching network; a variable voltage divider connected to the voltage detector and implemented using a multi-pole RF switch to select one of a plurality of different resistance ratios to improve the dynamic range of the apparatus; and wherein the RF matching network is adapted to maximize RF power transferred from the at least one RF input port to the at least one RF output port by varying the voltage or current to the voltage or current controlled variable reactive elements to maximize the RF voltage at the at least one RF output port. | 02-24-2011 |
| 20110014886 | TECHNIQUES FOR IMPROVED ADAPTIVE IMPEDANCE MATCHING - An embodiment of the present invention provides a method for limiting tuning of a matching network having variable reactive elements coupled to a variable load impedance to at least reduce an undesirable effect caused by an RF signal. Other embodiments are disclosed. | 01-20-2011 |
| 20100176487 | ELECTRONIC COMPONENT WITH REACTIVE BARRIER AND HERMETIC PASSIVATION LAYER - An electronic component is provided on a substrate. A thin-film capacitor is attached to the substrate, the thin-film capacitor includes a pyrochlore or perovskite dielectric layer between a plurality of electrode layers, the electrode layers being formed from a conductive thin-film material. A reactive barrier layer is deposited over the thin-film capacitor. The reactive barrier layer includes an oxide having an element with more than one valence state, wherein the element with more than one valence state has a molar ratio of the molar amount of the element that is in its highest valence state to its total molar amount in the barrier of 50% to 100%. Optionally layers of other materials may intervene between the capacitor and reactive barrier layer. The reactive barrier layer may be paraelectric and the electronic component may be a tunable capacitor. | 07-15-2010 |
| 20100164641 | METHOD AND APPARATUS FOR ADAPTIVE IMPEDANCE MATCHING - A system that incorporates teachings of the present disclosure may include, for example, an apparatus having one or more controllable variable reactive elements coupled to at least one input port and at least one output port, and a voltage detector coupled to the at least one output port to provide voltage information to a controller. The controller can be adapted to generate one or more control signals responsive to the voltage information provided by the voltage detector. The one or more controllable variable reactive elements can be coupled to a circuit adapted to map the one or more control signals that are output from the controller to a signal range that is compatible with said one or more controllable variable reactive elements. Additional embodiments are disclosed. | 07-01-2010 |
| 20100164640 | METHOD AND APPARATUS FOR ADAPTIVE IMPEDANCE MATCHING - A system that incorporates teachings of the present disclosure may include, for example, a matching network having one or more controllable variable reactive elements coupled to at least one input port and at least one output port. The one or more controllable variable reactive elements can be adapted to increase power transferred from the at least one input port to the at least one output port responsive to signals generated by a controller adapted to adjust one or more reactances within the matching network according to a mode of operation of a device detected by the controller. Additional embodiments are disclosed. | 07-01-2010 |
| 20100164639 | METHOD AND APPARATUS FOR ADAPTIVE IMPEDANCE MATCHING - A system that incorporates teachings of the present disclosure may include, for example, an adaptive impedance matching network having an RF matching network coupled to at least one RF input port and at least one RF output port and comprising one or more controllable variable reactive elements. The RF matching network can be adapted to reduce a level of reflected power transferred from said at least one input port by varying signals applied to said controllable variable reactive elements. The one or more controllable variable reactive elements can be coupled to a circuit adapted to map one or more control signals that are output from a controller to a signal range that is compatible with said one or more controllable variable reactive elements. Additional embodiments are disclosed. | 07-01-2010 |
| 20100156552 | ADAPTIVE MATCHING NETWORK - A system that incorporates teachings of the present disclosure can include, for example, an apparatus having a matching network adapted to reduce a magnitude of a signal reflection at a port of the matching network. The matching network can have one or more controllable variable reactive elements. A controller can be adapted to determine reflection coefficient information from incident and reflected waves sampled at the port of the matching network, and follow at least one cycle of a coarse tune process for generating one or more control signals to tune one or more reactances of the one or more controllable variable reactive elements. Additional embodiments are disclosed. | 06-24-2010 |
| 20100069029 | METHOD AND APPARATUS TO ADJUST A TUNABLE REACTIVE ELEMENT - A system that incorporates teachings of the present disclosure may include, for example, a method involving a step to tune a plurality of tunable reactive elements by measuring a drift in reactance of at least one of the plurality of tunable reactive elements away from a desired reactance. Additional embodiments are disclosed. | 03-18-2010 |
