489 results about "Tuner" patented technology

An improved architecture for a radio frequency (RF) power amplifier, impedance matching network, and selector switch. One aspect of embodiments of the invention is splitting the functionality of a final stage impedance matching network (IMN) into two parts, comprising a base set of off-chip IMN components and an on-chip IMN tuning component. The on-chip IMN tuning component may be a digitally tunable capacitor (DTC). In one embodiment, an integrated circuit having a power amplifier, an on-chip IMN tuner, and a selector switch is configured to be coupled to an off-chip set of IMN components. In another embodiment, an integrated circuit having an on-chip IMN tuner and a selector switch is configured to be coupled through an off-chip set of IMN components to a separate integrated circuit having an RF power amplifier.

The invention discloses a differential noise traction system and a differential signal noise parameter measurement method and device, and belongs to the field of chip measurement. The system is characterized in that a vector network analyzer comprises four ports, the input ends of two impedance tuners are respectively connected to a differential output port pair of the vector network analyzer, the output ends of the two impedance tuners are respectively connected to the differential input end of a tested device, the differential output end of the tested device is connected to the receiving end of a noise receiver, and the noise receiver is connected to the output end of the noise receiver. The output end of the noise receiver is respectively connected to a differential receiving port pair of the vector network analyzer; the direct-current power supply is used for supplying power to the tested device and the switch controller, and the switch controller is used for controlling an internal switch of the noise receiver; the differential output port pair generates a differential signal; the differential receiving port pair is used for receiving noise power of a differential signal; and the impedance tuner is used for adjusting the impedance point, so that the differential signals input to the tested device correspond to different differential impedances. The method can improve the measurement precision.

A calibration unit comprises a first port which is arranged for being connected to a measurement device; a calibration module comprising at least three different calibration standards for calibrating the measurement device; and a switching module configured to connect the first port with one of the at least three different calibration standards of the calibration module. A daisy chain port is arranged for being connected to a further calibration unit, to an external power meter, or to a device-under-test, DUT. The first port is connectable to the daisy chain port. An internal power meter is arranged within a housing of the calibration unit. The first port is connectable to the internal power meter; or an internal impedance tuner. The first port is connectable to the internal impedance tuner.

The invention is suitable for the technical field of communication, and particularly relates to a method for detecting mismatched harmonic waves of a power amplifier. The method comprises the steps that a first power detection unit is connected with a coupler through a control unit, the standing-wave ratio of a to-be-detected power amplifier chip is adjusted to be 1: 1 through a tuner, and the power of an input signal of a vector signal generator is adjusted till the target power of the to-be-detected power amplifier chip is reached; the second power detection unit is connected with the coupler through the control unit, the output standing-wave ratio of the to-be-detected power amplifier chip is adjusted to a preset specific value through the tuner, and when the tuner modulates phases at intervals of preset degrees, the harmonic power of the to-be-detected power amplifier chip in each phase is recorded through the second power detection unit. Compared with the prior art, the method can accurately test and evaluate the harmonic wave of the to-be-tested power amplifier chip under the mismatched standing wave condition, thereby evaluating the harmonic wave index of the to-be-tested power amplifier chip.

Systems and methods for capacitance tuning of devices in quantum processors are described. One implementation is a quantum processor with a first current path having a first loop, a Josephson structure with at least one Josephson junction interrupting the first loop, a second current path connected to the first current path, and a flux bias. The second current path has a first node spaced from a second node, a capacitor separating the first node and the second node, and a voltage gain tuner, the voltage gain tuner being inductively coupled to the inductance of the first current path. The flux bias is coupled to the voltage gain tuner and controls the voltage gain tuner to vary a voltage ratio between the first node and the second node, thereby influencing the capacitance of the first current path.

The present disclosure provides a system and method of providing radio content to a vehicle. A system for providing radio content to a vehicle includes a vehicle communication system, a vehicle infotainment system, and a vehicle entertainment support server remote from the vehicle. A vehicle communication system includes a tuner unresponsive to a first radio transmission medium and configured to transmit a radio content request requesting radio content from an identified radio station (i.e., a desired radio station). The vehicle infotainment system is configured to obtain an input identifying a desired radio station broadcast in a first radio transmission medium and to transmit radio content from the desired radio station. The remote vehicle entertainment support server is configured to: receive radio content from a source, store the radio content in a selected temporary memory; obtaining a radio content request; and in response to the transmitting radio being the desired radio in the radio content request, transmitting the radio content in the selected temporary memory.

The present application relates to selecting an antenna optimization parameter of a UE. In an example, grip data indicating a user grip of the UE is generated. The grip data is used in a look-up of antenna data indicating an antenna selection from the plurality of antennas and / or a tuner state from a plurality of tuner states. In another example, reference signal measurements can be generated, each corresponding to one of the antennas. The reference signal measurements can be input to artificial intelligence model that outputs the antenna selection, the tuner state, or a predicted angle of arrival. The predicted angle of arrival can be used in a look-up of antenna data to determine the antenna selection and / or the tuner state.

Described herein are systems and methods that use Ethernet infrastructure to extend the reach of Wi-Fi signals. As a result, the Wi-Fi coverage area of, e.g., an access point can be extended through building structures, such as walls, floors, and other obstacles. In certain embodiments, this is accomplished by utilizing an RF tuner that receives a signal produced from a Wi-Fi signal and recreates the Wi-Fi signal to retransmit it at a remote location that is outside of the regular coverage area of the access point.

The invention provides a convolution operator compilation optimization method and device for a multi-core parallel system structure. Comprising the following steps: an input converter module extracts convolution parameters in a deduplication model or input by a user, and generates a convolution descriptor group; the controller module determines whether to start tuning on the input module or not according to the historical record, and transmits the convolution descriptor needing tuning to the tuner module; the tuner module is responsible for automatically tuning operators according to the configured parameter space and outputting optimal parameter configuration; and the code generation module generates an HIP code according to the received tuning parameter combination and the convolution descriptor, and performs corresponding numbering on a kernel function generated by each parameter. And the kernel function execution module compiles and executes the generated codes, tests the performance of each kernel function through a test framework, returns corresponding fitness information according to numbers, summarizes the fitness information into a list and returns the list to the tuner module.

A system may include a loop antenna and a dipole antenna that includes at least two dipole arms. Each of the at least two dipole arms may be electrically connected to the loop antenna. Within the system, the loop antenna may be a balun for the dipole antenna. In some cases, the electrical connection between the loop antenna and the arms of the dipole antenna may create a combined loop-dipole, dual-wideband antenna. The combined antenna may be tunable using a tuner that is electrically connected to the combined antenna. Various other mobile electronic devices, apparatuses, and methods of manufacturing are also disclosed.

The invention provides a method and a device for measuring a dielectric constant of a storage bubble of an atomic clock. The method comprises the following steps: starting a device for measuring the dielectric constant of an atomic clock storage bubble to obtain the actually measured resonant frequency of an atomic clock cavity bubble system; constructing a simulation model according to the state parameters of the cavity bubble system; parameter scanning analysis is carried out according to the simulation model, and a relation image of the storage bubble dielectric constant and the cavity bubble system simulation resonant frequency is obtained; determining the dielectric constant value of the storage bubble according to the measurement frequency and the simulation frequency on the relation image; the position of the tuner and the environment temperature are changed, the measurement accuracy can be improved through multiple times of measurement statistical averaging, and the relation between the dielectric constant of the storage bubble and the temperature can be analyzed. The method solves the problem that a conventional method for measuring the dielectric constant by adopting a calculation formula for inversion is lack of flexibility and has certain limitation. The method is of great significance to the optimization design of a high-performance cavity bubble system, the improvement of the temperature frequency characteristic of the atomic clock and the promotion of the development of a small light-weight active atomic clock.

An aperture tuner circuit includes a plurality of switching terminals, at least one auxiliary terminal, at least one open / short / load (OSL) calibration circuit and a switch network. The OSL calibration circuit is connected to the at least one auxiliary terminal and selectively configurable to provide one of a predetermined open path, a predetermined short path and predetermined load to the aperture tuner circuit. The switch network is connected to the plurality of switching terminals and configured to selectively establish and reconfigure signal paths between the switching terminals.

The invention provides a harmonic enhancement type load traction system. The harmonic enhancement type load traction system comprises a circulator, an impedance tuner, a high-pass filter, a radio frequency power amplifier and a non-reflection duplexer which are connected end to end to form a closed-loop structure, the input end of the circulator is connected with a bias structure of a to-be-tested device, and the non-reflection duplexer is connected with a fundamental wave signal to form an open-loop structure; the active closed-loop load traction structure is used at the harmonic wave position, the active open-loop load traction structure is used at the fundamental wave position, tuning of the fundamental wave and tuning of the second harmonic wave are effectively compatible, the integration level is high, and impedance tuning of the harmonic wave can be achieved under the condition that other equipment such as a signal source is not introduced.

The embodiment of the invention discloses a calibration test device for a semi-physical simulation darkroom array antenna and a feed system. The calibration test device is used for carrying out calibration test on the array antenna and the feed system. In one specific embodiment, the calibration test device comprises a calibration computer, a vector network analyzer, a calibration case, a three-axis turntable, a tuner, a signal source and a simulation darkroom. According to the method, the problem of calibration work of the array antenna and the feed system of the semi-physical simulation radio frequency darkroom under the low-frequency condition is solved, design experience is provided for construction of the low-frequency simulation darkroom, and preconditions are provided for semi-physical simulation test application requirements developed in a laboratory.

Wideband waveguide slot-based bi-directional couplers are combined with waveguide load pull tuners for true vector load pull at sub-THz frequencies. Coupling is constant and Directivity is above average up to 170 GHz and can be extended to 330 GHz and are controlled by the shape, size, and configuration of the slots between the main tuner waveguide and the adjacent coupler waveguide. A calibration method allows full characterization of the coupler-tuner assembly.

A calibration and impedance synthesis (tuning) method for active load pull systems employs prior calibration and dynamic interpolation routines. Since active load pull systems differ from passive load pull systems in that the device under test (DUT) is part of the tuner, in large signal the tuner cannot be calibrated independently. The new active load pull system comprises an impedance generation algorithm based on prior calibration and dynamic in memory interpolation routines. At small signal levels the procedure is like with passive load pull tuners. At higher power, where the DUT becomes nonlinear, the calibration yields only approximate data. For load pull contour generation this is still adequate.

A large-scale antenna array absolute power calibration method is characterized in that a standard gain antenna is installed at an unoccupied position of an antenna array surface, a group of electronic switch matrixes are installed between the standard gain antenna and an antenna array radio frequency feed channel, and a tuner for receiving signals is in a form that four loudspeakers are perpendicular to each other. A wide-frequency-band horn antenna covering the working frequency band of the system is additionally arranged at the central position of a tuner of system calibration equipment; the calibration equipment computer gates the wide-band horn antenna by controlling the electronic switch, receives signals radiated to the inherent antenna of the antenna array and the additionally installed standard gain antenna respectively, and analyzes and calculates the absolute power of the system through a comparison method; the method does not need to frequently replace and erect standard antennas to calibrate the absolute power, greatly improves the calibration efficiency of the absolute power of the large antenna array, reduces errors caused by manual replacement of the fixed standard antennas, and effectively improves the test efficiency.

A radio frequency device has a multifunctional tuner that stores measurements of reflection coefficient parameter in a register. The radio frequency device also has a transceiver that has a transmitter. The transceiver may detect a transmitter signal from the transmitter to an antenna in an initial tuning state and then determine whether the transmitter signal is stable. In response to the transmitter signal being stable, the transceiver may measuring the reflection coefficient parameters at the multifunctional tuner. Furthermore, the radio frequency device has a baseband controller that has a memory to store instructions and a processor to execute the instructions. The instructions cause the processor to determine an antenna impedance based on the reflection coefficient parameters, and in response to determining that the antenna impedance is greater than or less than a threshold antenna impedance, iteratively tune the antenna using the multifunctional tuner.

The invention discloses a method and device for identifying a device, equipment, a storage medium and a program product, and belongs to the technical field of wireless communication. A control device in the electronic equipment sends a report request to a plurality of tuners; any tuner sends a USID to the control device based on the received report request; the control device receives the plurality of USIDs sent by the plurality of tuners, modifies the same USID in the plurality of USIDs, and obtains a plurality of modified USIDs not including the same USID; the control device sends the modified USID in the plurality of modified USIDs to the plurality of tuners; for any tuner, updating the USID in the any tuner into the modified USID of the any tuner; the control device identifies the plurality of tuners on the basis of the USID among the plurality of tuners. By means of the mode that the device actively reports the USID, modification of the same USID can be completed at a time, implementation is easy, and the accuracy of device recognition is improved.

Certain aspects of the present disclosure provide techniques for multi-stage impedance tuning for a radio frequency (RF) transmitter. An example apparatus includes RF circuitry comprising an amplifier, an impedance tuning circuit coupled to an output of the amplifier, and an antenna tuner coupled between an antenna feed and an output of the impedance tuning circuit. The apparatus further includes one or more memories and one or more processors coupled to the one or more memories. The one or more processors are configured to cause the apparatus to configure at least one parameter of the impedance tuning circuit or the amplifier based at least in part on at least one load characteristic at the antenna feed; and communicate one or more signals via the RF circuitry while the at least one parameter is configured based at least in part on the at least one load characteristic at the antenna feed.

A clock calibrator comprises an input port configured to receive a two-level symbol from a quarter-rate transmitter, the two-level symbol having a period of P unit intervals with a first rising edge launched by one quarter-rate clocks. The clock calibrator includes a clock generator configured to generate four calibration clocks based on the quarter-rate clocks, each calibration clock having the period of P UIs and sequentially having a calibration rising edge delayed by M UIs. The clock calibrator includes a delay-tuner configured to retime the calibration rising edge and a phase detector configured to determine a coarse parameter and a k-th fine parameter based on alignment between the retimed calibration rising edge and the first rising edge with (k−1)M UIs delay. Here P is an integer multiple of 4, M is one less than an integer multiple of 4, and k is selected from 1, 2, 3, and 4.

The utility model discloses a real-time vector detection device based on a radio frequency signal short-wave antenna tuner, which comprises a radio frequency signal sampling module, an AGC, an AD and an FPGA, the sampling input end of the radio frequency signal sampling module is connected with a radio frequency path, and the output end of the radio frequency signal sampling module is provided with a forward signal end and a reverse signal end and is connected to the AGC; the AGC can perform gain attenuation processing on an input forward signal and an input reverse signal, an output end of the AGC is provided with a forward signal end and a reverse signal end which are respectively connected to a sampling input end of the AD, the AD is a dual-channel over-sampling analog-to-digital conversion module, an output end of the AD is connected with the FPGA, an input clock of the FPGA is 100MHz, the DDS is realized by adopting an IP core design, the FPGA can realize sampling, calculation and frequency mixing, and the FPGA is connected with the FPGA. And the matching network is controlled to realize tuning and system protection or alarm according to the calculated impedance value and standing-wave ratio. According to the utility model, the hardware circuit is simplified, the power standing-wave ratio condition of the access can be detected in real time, the detection efficiency is improved, the use is convenient, and the detection is efficient and accurate.

Adjustable combination tuning probes for slide screw load pull tuners allow larger frequency coverage Fmax / Fmin and higher VSWR beyond the capacity of existing tuning probes. This is done by combining two equally or unequally long tuning slugs, a fixed slug and a mobile slug into a combination probe assembly being mounted in the same mobile tuner carriage. The mobile slug slides on a top bar and is lockable at adjustable distance from the fixed slug. The distance (gap) is adjustable by engaging and moving the assembly against the prongs of forks attached to the slabline at the test or idle ports.

The disclosed system may include an antenna and an antenna matching network. The antenna matching network may include an aperture tuner configured to shift a frequency response of the antenna and an impedance tuner configured to dynamically change an amount of radiated power for the antenna. The antenna matching network may be positioned at least a specified minimum distance from the antenna according to various operating characteristics of the antenna. Various other apparatuses, wearable electronic devices, and methods of manufacturing are also disclosed.

The present application relates to selecting an antenna optimization parameter of a UE. In an example, grip data indicating a user grip of the UE is generated. The grip data is used in a look-up of antenna data indicating an antenna selection from the plurality of antennas and / or a tuner state from a plurality of tuner states. In another example, reference signal measurements can be generated, each corresponding to one of the antennas. The reference signal measurements can be input to artificial intelligence model that outputs the antenna selection, the tuner state, or a predicted angle of arrival. The predicted angle of arrival can be used in a look-up of antenna data to determine the antenna selection and / or the tuner state.

An electronic device includes an antenna configured to transmit and receive signals within a plurality of frequency bands, a RFIC configured to transmit the signals within the plurality of frequency bands to the antenna, a coupler configured to transmit at least a portion of signals reflected from the antenna to the RFIC, a tuner connected to the antenna and the coupler, and a processor connected to the RFIC and the tuner, the processor configured to obtain a third reflection coefficient at a first receiving frequency based on a first reflection coefficient at a first transmission frequency and a second reflection coefficient at a second transmission frequency that is greater than the first transmission frequency, determine, based on the third reflection coefficient, a first receiving tuning code for performing impedance matching to the antenna, and control impedance of the antenna with the tuner based on the first receiving tuning code.

The invention relates to the technical field of microwave antennas, in particular to an antenna and electronic equipment. The invention provides an antenna. The antenna comprises a feed unit and a plurality of branches, the feed unit is provided with a plurality of coupling points, the plurality of coupling points are in one-to-one correspondence with the plurality of branches, and the branches are electromagnetically coupled with the feed unit through the coupling points; a gap is formed between every two adjacent branches; the plurality of branches are provided with independent grounding points for grounding. According to the antenna, local SAR hot spots are reduced, ultra-wideband coverage and low SAR are achieved without depending on an SAR sensor and a tuner and switching circuits, multi-band superposition can be flexibly supported, the cost is low, different band requirements can be met by adjusting branch parameters, and the performance expansibility is good. According to the design, multi-band coverage can be realized, and the antenna performance, the SAR value standard and low cost can be considered in a compact space by controlling the SAR value.

The application provides a switchable circular polarization antenna and a communication device. The switchable circular polarization antenna comprises a PCB board and three branches. A top layer of the PCB board is provided with a feed point and a reference ground plane. The three branches comprise a feed branch, a first ground branch and a second ground branch. The feed branch is connected to the feed point through a first end after being connected with a first tuning device in series, and a tail end of the feed branch is suspended. The top layer of the PCB board is further provided with a double-pole double-throw switch. The double-pole double-throw switch is controlled by a controller. A first fixed end of the double-pole double-throw switch is connected to the reference ground plane after being connected with a second tuning device in series. A second fixed end of the double-pole double-throw switch is connected to the reference ground plane after being connected with a third tuning device in series. A first end of the first ground branch is connected to a first moving end of the double-pole double-throw switch. A first end of the second ground branch is connected to a second moving end of the double-pole double-throw switch. Tail ends of the first ground branch and the second ground branch are suspended.

Disclosed are systems, methods, devices, antenna arrays, and other implementations, including a microwave antenna array that includes a plurality of single loop antennas mounted on a holding structure, and a phase tuner to control the phases of signals radiated (emitted) by each of the plurality of single loop antennas to control polarization of a resultant microwave field generated by the plurality of single loop antennas. In some examples, the plurality of single loop antennas includes four single loop antennas, mounted on the holding structure, to define a cloverleaf shaped antenna array arrangement.

This invention provides an automatic tuner for a loop antenna used in shortwave communication, belonging to the field of shortwave communication technology. This tuner aims to solve the problems of existing automatic tuners for loop antennas, such as difficulty in balancing versatility and high power performance, and poor high-voltage withstand capability. The tuner includes: a matching circuit, which includes couplers for shunting forward and reverse radio frequency signals; a tuning actuator, which includes an oil-immersed variable capacitor and a drive mechanism; and a main control circuit. Based on the signal shunted by the coupler, the main control circuit autonomously calculates the standing wave ratio (VSWR) and generates a control signal to control the matching circuit and tuning actuator independently of the radio transceiver, thus completing automatic tuning. This invention improves voltage withstand and power handling capability by using an oil-immersed variable capacitor, and achieves universal tuning through the autonomous control of the main control circuit, overcoming the shortcomings of existing technologies and offering the advantages of high power, high reliability, and strong versatility.