39 results about "Tuner" patented technology

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.

Radio frequency feed line for connecting an HF radio tuner to a tunable antenna. Radio frequency feed line (1) for connecting an HF radio tuner to a tunable antenna, with a length between 0.7 m and 3 m, comprising: a central conductor wire (2); an electrically insulating sheath (3) surrounding the conductor wire (2); an electrically insulating layer (4) comprising nested frustoconical eyelets (4a) with a maximum radius between 2 and 3 cm; a heat-shrinkable sleeve (5) encasing the electrically insulating layer (4); and two self-amalgamating sleeves (6) at both ends of the electrically insulating layer (4). Figure for the abstract: [Fig. 1]

This invention provides a multi-cavity tuner control system and method for high-frequency cavities in particle accelerators, belonging to the field of particle accelerator technology. The system includes: a field-programmable gate array (FPGA) communicatively connected to multiple high-frequency cavities, used to acquire cavity sampling signals and incident reference signals from the multiple high-frequency cavities, and generate corresponding phase difference information for the high-frequency cavities based on the cavity sampling signals and incident reference signals; an embedded computer communicatively connected to the FPGA, used to generate control commands based on the phase difference information; and multiple tuner actuators, each corresponding to a high-frequency cavity, which are communicatively connected to the embedded computer via an industrial Ethernet bus, used to adjust the resonant frequency of the corresponding high-frequency cavity according to the control commands. This invention achieves high-precision, high-synchronization, and automated tuning of the multi-cavity tuner.

A plasma generator using a resonant waveguide is disclosed. The plasma generator includes a ring-shaped or elliptical central waveguide having a plurality of slots on its inner surface, a first input waveguide tangentially connected to the central waveguide to allow electromagnetic waves to pass therethrough, an electromagnetic wave supplier transmitting electromagnetic waves to the input waveguide, and a plasma chamber having an electromagnetic wave input window located at the exit of the slots to seal the interior of the central waveguide and through which the electromagnetic waves introduced through the slots can be radiated to the outside.

A thermally adaptive antenna system having an antenna structure, an EM) power signal, a DC power signal, an impedance tuner, a temperature sensor in the antenna, a DC-DC conversion component, and a microcontroller. The microcontroller provides a tuning command to the impedance tuner, causing the impedance tuner to compensate for an impedance change in the antenna due to a temperature change in the antenna. An environmentally adaptive antenna system has an antenna structure, an EM power signal, a DC power signal, an EM power splitter, a directional coupler, a reference receiver, a measurement receiver, an impedance tuner, and a controller. The controller calculates antenna impedance change based on observed changes in return loss, calculates a corresponding correction to the antenna impedance, and sends a command to the impedance tuner to implement the correction to the antenna impedance.

An antenna tuner receives outputs of detectors coupled to an input and / or an output of each power amplifier (PA) of a plurality of PAs of a multiple antenna system. A processor of the antenna tuner is configured to process the detector outputs and to generate at least one of a gm gate bias value and a cascode gate bias value to be applied to gm and cascode gates, respectively, of a last stage of each of the PAs to change the shape of an input amplitude-to-output amplitude (AM-AM) response of each of the PAs independently of one another. The processor can also be configured to process the detector outputs to generate a varactor bias value to be applied to a terminal of a varactor of each of the PAs to change the shape of an input amplitude-to-output phase shift (AM-PM) response of each of the PAs independently of one another.

A plasma processing system is disclosed. A very high frequency (VHF) generator delivers power to a plasma chamber, and a mid-frequency (MF) generator delivers power to the plasma chamber. The VHF generator includes a sensor configured to provide a signal indicative of an impedance of a plasma load that is presented to the VHF generator. The VHF generator further includes a frequency tuner configured to adjust a frequency of the VHF generator within a cycle of the MF generator based on the signal to mitigate impedance modulation caused by the MF generator. Impedance modulation may also be mitigated by a sync line between the VHF and MF generators that allows presetting the VHF generator frequency in synchronization with a cycle of the MF generator.

The application further provides a handheld personal assistant device antenna device, and specific technical solutions are as follows: a processor and an antenna end shared by a radio frequency identification ultra-high frequency linear antenna and a diversity antenna; an antenna tuner used for receiving a control signal of the processor, switching a resonance point, and adapting an operating frequency of the ultra-high frequency linear antenna or the diversity antenna; a radio frequency switch module connected with the processor through a first control interface and connected with the antenna end through a plurality of radio frequency channels, and used for switching a radio frequency channel state of the radio frequency identification ultra-high frequency linear antenna and the diversity antenna. The application realizes antenna multiplexing of the radio frequency identification ultra-high frequency linear antenna and the diversity antenna through a switch and an interface, reduces the number of antennas required by a mobile device and hardware cost, improves product competitiveness, and enhances product practicability.

A system or systems for using a serial group ID address for active / tunable vehicle antennas. The systems may include at least one antenna and one or more tuners. The systems may further include one or more identical antennas, and each antenna may include at least two tuners, and / or each antenna may include three or more tuners. A method or methods that provide one or more tuners, one or more impedance tuners, one or more aperture tuners, a radio frequency (RF) multiplexer, an RF diplexer, a connectivity hub module, one or more cables, or one or more components. A connectivity hub module (CHM) sends commands specifying which RF bands to move to and which impedance tuners and / or aperture tuners to move to.Each of the voter can work on the same serial group IDs or one or more serial group IDs.

This application relates to an antenna structure and transceiver device, applicable to the field of antennas. The antenna structure includes a radiator, a director, a reflector, and a tuner. The radiator is a non-closed ring structure formed by bending a continuous conductor and has a recess. The continuous conductor includes a first free end and a second free end spaced apart, with a feed gap formed between the first and second free ends. The feed gap is located at the middle position of the radiator in the width direction. The director is located on one side of the radiator. The reflector is located on the opposite side of the radiator and the director. The tuner connects the radiator, director, and reflector into a single structure. This application achieves a high degree of integration and simplification in the antenna structure by using a radiator formed by bending a continuous conductor and creating a direct feed gap, combined with a director and a reflector, and integrating the three into a single structure by a tuner. This also provides a foundation for obtaining stable directional radiation performance.

An electronic device may be provided with an antenna having a resonating element formed from a segment of peripheral conductive housing structures. A speaker may be aligned with first openings in the segment. A vent may be aligned with second openings in the segment. A connector may protrude through the segment. A trace combiner for the antenna may be patterned onto the speaker and may be coupled to the segment. Tuners for the antenna may be disposed on first and second flexible printed circuits that extend along opposing sides of the connector. The tuners may be controlled through the speaker. The second flexible printed circuit may extend along the vent. The vent may have a vent cowling with a cut-out region next to the tuner on the second flexible printed circuit.

Tri-state triple band remotely configurable tuning probes for slide screw impedance tuners allow instantaneous larger frequency coverage beyond the capacity of existing tuning probes using the single horizontal and vertical axis mechanism of a prior art single probe, single band tuner. This is done by combining two tuning slugs, a master slug and a slave slug into a configurable tuning probe assembly mounted in the same mobile tuner carriage and controlled using a single vertical axis mechanism. To avoid spurious resonance phenomena the tuning slugs are controlled, driven, and locked vertically sliding on each other, and guided appropriately allowing smooth, uninhibited vertical movement of the metallic bodies.

A locking string tuner that is comprised of a string post and an engagement member that is moveably associated with the string post. The engagement member has an engagement side that includes a grip surface and a relief surface, and has a reeling side.

The application discloses an antenna tuner based on an internal damping structure, which comprises a cabinet, a vibration isolator, a metal mounting plate, a super-flexible shielding channel and an internal functional module, wherein the cabinet is hung on an aviation platform, one vibration isolator is installed on each of four supporting corners in the cabinet, and the metal mounting plate is installed in the cabinet through the four vibration isolators; the internal functional module is installed on the metal mounting plate, and the internal functional module is connected with external interfaces on the cabinet through the super-flexible shielding channel. The application realizes damping of each functional module of the antenna tuner, has high integration, strong anti-vibration capacity, excellent electromagnetic compatibility, is convenient to install, has strong environmental adaptability, is high in reliability and is suitable for use requirements of a new aviation platform on air equipment.

The application relates to a frequency division multiplexing ultrahigh frequency RFID label, and relates to the technical field of the frequency division multiplexing ultrahigh frequency RFID label. The application comprises a general basic radiation module configured to work in a predetermined wide frequency band; the general basic radiation module comprises a replaceable frequency point tuning module which is detachably electrically connected to the general basic radiation module; and a standardized interface formed between the two; the replaceable frequency point tuning module is coupled with the general basic radiation module through the standardized interface, and is used for tuning the overall resonance frequency of a resonance unit to a target discrete frequency. The application realizes flexible and accurate configuration of the resonance frequency by modularizing separation of the wideband radiator and the narrowband tuner and designing a standardized coupling interface; meanwhile, the production supply chain is greatly simplified, the material and management costs of the multi-frequency point product are reduced, and the miniaturization of the overall structure is promoted.

A tuning method for an antenna device is provided. The antenna device includes an antenna, an impedance matching tuner (IMT) and a radio frequency front end (RFFE). The antenna device is coupled to a radio frequency transmitter / receiver (RF transceiver), In a characterization stage, the antenna device is characterized to obtain several mapping data between the first load impedances for transmitting (TX) frequencies and the second load impedances for receiving (RX) frequencies, corresponding to several configurations of the IMT and several operating conditions of the antenna device. In a tuning stage, the first load impedances at a current configuration of the IMT are estimated. The first load impedances are mapped to obtain the second load impedances at the current configuration based on the mapping data. The IMT is tuned based on the first load impedances and the second load impedances at the current configuration of the IMT.

The application provides a method for creating a usage scenario determination database and a mobile communication system for the same. In creating a first part of the usage scenario determination database, an impedance of at least one first tuner is repeatedly measured until all antennas among the antenna group are selected, a plurality of predetermined testing frequencies are selected and a plurality of tuning states of the at least one first tuner are selected. In creating a second part of the usage scenario determination database, an antenna impedance is repeatedly measured until all antennas among the antenna group are selected, the plurality of predetermined testing frequencies are selected, a plurality of tuning states of at least one second tuner are selected and at least one usage scenario is selected. The usage scenario determination database is created base on the first part and the second part.

Display device including: a tuner that is equipped to receive a radio signal; a communication module that is set up to perform communication with an external server and / or an external remote control; a display designed to show content contained in the received broadcast signal, the content being received from the external server or stored in internal memory; and a controller set up to control the tuner, the communication module and / or the display, the controller is further configured to capture a screen image displaying the content, characterized by the fact that the controller is further configured for: to extract a first keyword from the recorded screen image and information contained in the broadcast signal of an electronic program guide, to generate a confidence value corresponding to the first keyword, to cause the display to show a first menu containing the extracted first keyword, to transmit the first keyword, first feedback information corresponding to a selection of the first keyword, and / or the confidence value of the first keyword to the external server based on the fact that an input selecting the first keyword is received from the external remote control. to receive a second keyword, a corrected confidence value, and second feedback information from the external server, to cause the display to show a second menu containing the received second keyword, and to cause the display to show a first screen corresponding to the second keyword, based on the fact that an input to select the second keyword is received from the external remote control.

This utility model discloses a choke tuner with isolation circuit, relating to the field of tuner technology. It includes a tuner housing, a capacitor, a choke coil assembly, and a display screen. The capacitor is installed inside the tuner housing, and the choke coil assembly is disposed on one side of the capacitor. The display screen is fixedly embedded in the upper surface of the tuner housing. The corners of the tuner housing are chamfered. The capacitor has an electrical specification of 20uF / 1000V, and forms an LC resonant circuit through an inductor. The tuner housing is made of FV-2 flame-retardant material with insulation class F and high-temperature resistance class F, effectively preventing fire risks. The surface of the housing is treated with chromate passivation zinc plating to form an anti-oxidation colored film, enhancing corrosion resistance. The use of a 20μF / 1000V capacitor paired with a high-saturation-current inductor meets the requirements of high-current applications, improves energy transmission efficiency, and enhances the safety of the tuner.

A system comprises an oscillator circuit that includes first and second tuning banks and a current-controlled oscillator. The first tuning bank is connected to a voltage node and receives the tuning signal, generates a voltage drop at the voltage node that corresponds to the tuning signal, and allows the flow of a first current therethrough that varies with the voltage drop. The second tuning bank is connected to the voltage node and receives an oscillator input signal and regulates a second current that flows therethrough in response to a voltage difference between the voltage drop and the oscillator input signal. The current-controlled oscillator receives a third current that is a sum of the first and second currents and fine-tunes an oscillator output signal based on the third current to track a frequency of a reference input signal.

The present application relates to the resonant cavity for power input coupler exercise. One end of the resonant cavity for power input coupler exercise is connected with one coupler, input microwave power, the other end of the resonant cavity for power input coupler exercise is connected with another coupler, output microwave power. The resonant cavity for power input coupler exercise includes resonant cavity cavity, tuner and coupling port transition adapter. The resonant cavity cross type frequency tuning unit is used to adjust the resonant cavity operating frequency; the coupling port transition adapter is used to match the inconsistency of the resonant cavity coupling port size and the high power input coupler power output port size; the tuner is used to ensure that the cavity frequency is consistent with the high power coupler frequency; the resonant cavity for power input coupler exercise has the advantages of adjustable frequency and adjustable coupling port size, etc. not only reduces the offline high power exercise cost, but also saves the resonant cavity storage space.

The application provides an electronic device and a signal enhancement method. The method is applied to an electronic device, and the electronic device comprises a first electrode, a tuner connected with the first electrode, a determinator configured to determine an environmental state of the electronic device, and a controller connected with the tuner and configured to electrically connect the tuner to a circuit of the electronic device when the environmental state of the electronic device is a first water entry state. The method can detect whether the electronic device is in water, and enhance the quality of signals transmitted by the electronic device after the electronic device is in water, so that the electronic device can maintain good communication quality in water.

A method for fabricating a semiconductor structure is disclosed. A substrate having a dielectric layer thereon and a gate trench formed in the dielectric layer is prepared. The substrate is subjected to a physical vapor deposition (PVD) process in a physical vapor deposition chamber equipped with an auto capacitance tuner to conformally deposit a metal layer on a top surface of the dielectric layer and on an interior surface of the gate trench. The PVD process comprises: (i) tuning the auto capacitance tuner to provide positive radio frequency (RF) bias to the substrate in the PVD chamber for a first time period; and (ii) subsequently tuning the auto capacitance tuner to provide negative RF bias to the substrate in the PVD chamber for a second time period.

The present invention is about the re-invention of various music generators and the corresponding tuning instruments. The present invention proposes a new tuning system, which is called the "Tai Ping Tuning" in the present invention. According to the Tai Ping Tuning, the present invention not only re-invents the frequency positions of the note indications of the tuning instruments, but also re-invents the frequency of the note indications of various musical instruments, including the software capable of generating the musical score, and the corresponding note indication markers or the positions of the note quality panels, or the physical positions of the note holes. The musical instruments made according to the Tai Ping Tuning can specifically appear the frequency relationships of five, six, seven, eight, nine, and ten times the frequency in the octave, which should be consistent with the frequency relationships of the pressure wave vibrations of the six Fu and blood vessels, and increase the efficacy of the music in stirring the blood vessels and harmonizing the emotions.

The utility model belongs to the technical field of fastener, and relates to bolt for high -tuner fixed, including bolt main part, one end of bolt main part is connected with connecting column fixedly, the one end fixed connection of connecting column is close to bolt main part has first rectangle board, the one end fixed connection of connecting column is away from bolt main part has second rectangle board, the one end fixed connection of connecting column is away from bolt main part has hexagonal head, the both sides of second rectangle board all are provided with damping assembly. The utility model discloses through the setting of damping assembly, can reduce the vibration force of bolt main part and the fixed surface when high -tuner is received external collision, thereby prevent the action of vibration force, easy to cause bolt main part to appear loose, and further reduce the connecting strength and stability between high -tuner and mounting structure, seriously influence the normal working performance and operating stability of high -tuner, serious time even possible the emergence of the situation of equipment failure or safety accident.

The utility model provides a kind of portable box system suitable for short wave radio, it is related to the storage structure technical field of short wave radio, the portable box system suitable for short wave radio includes first aviation case, the first aviation case includes first box, rotating structure, telescopic link, short wave radio and antenna tuner, the box includes bottom shell and lid, the accommodating cavity is used to install short wave radio and antenna tuner, the opening end of the lid is connected with the bottom shell;The rotating structure is fixed to the inner wall of the bottom shell, the rotating structure is rotatably connected with the short wave radio;One end of telescopic link is rotatably connected with the inner wall of bottom shell, the other end of telescopic link is connected with the short wave radio;Mobile power supply and radio power supply are integrated in the second box of second aviation case, the utility model can improve the use safety convenience of short wave radio;It can also solve the problem of inconvenient carrying of short wave radio equipment under field environment.

The present disclosure provides a base station antenna and a control method thereof, and a communication device. The base station antenna comprises: a first radiation element group; a second radiation element group; a substrate; a coupling device disposed on the substrate and comprising at least one input port, a first output port and a second output port, the at least one input port being configured to receive an input signal, the first output port being electrically coupled to the first radiation element group, and the second output port being electrically coupled to the second radiation element group; and a tuning device disposed on a side of the coupling device away from the substrate, a projection of the tuning device on the substrate partially overlaps with a projection of the coupling device on the substrate, and the tuning device is configured to adjust an energy distribution ratio of the input signal between the first output port and the second output port by adjusting a resonant frequency between the tuning device and the coupling device.