562 results about "Radio frequency circuits" patented technology

The invention provides a radio frequency circuit schematic diagram-to-layout collaborative optimization method and system based on an AI model, and the method comprises the steps: building a mapping database from the geometric parameters of a passive device to corresponding electromagnetic characteristics through obtaining the geometric parameters of the passive device; based on a database, a corresponding AI agent model is trained for each passive device, through the AI agent models, millisecond-level model prediction is used for replacing time-consuming electromagnetic simulation to serve as design guidance, the calling frequency of calculation-intensive electromagnetic simulation is remarkably reduced, the layout parasitic effect is further considered in the schematic diagram design stage, and the design efficiency is improved. And a performance gap between a schematic diagram and a layout is effectively bridged. Then a target schematic diagram is obtained, passive devices in the target schematic diagram are automatically replaced based on a Bayesian optimization algorithm and an AI agent model, and the design period from the schematic diagram to a qualified layout is greatly shortened; by optimizing the layout effect in the schematic diagram design stage, it can be ensured that the simulation performance of the finally generated physical layout is consistent with a schematic diagram simulation result.

Certain aspects of the present disclosure provide techniques for identifying a minimal, or at least reduced, set of representative calibration paths in radio frequency (RF) circuits and calibrating other calibration paths based on calibration codes used for the representative calibration paths. An example method generally includes receiving a calibration data set including measurements associated with each calibration path of a plurality of calibration paths in an RF circuit. Based on a clustering model and the calibration data set, a plurality of calibration clusters is generated. From each respective calibration cluster of the plurality of calibration clusters, a respective representative calibration path for is selected for the respective calibration cluster. Generally, calibration codes generated for the representative calibration path are applicable to other calibration paths in the calibration cluster. A lookup table is generated associating a respective calibration path with other calibration paths in each respective calibration cluster.

A device may include a mainboard including a grounding unit, a radio-frequency circuit, and a conductor, wherein an annular radiation slot is provided on the conductor. The device may include a feeding terminal having a first end connected to a feeding point of the conductor and a second end electrically connected to the radio-frequency circuit of the mainboard. The device may include a first inductor having a first end connected to a grounding point of the conductor and a second end electrically connected to the grounding unit of the mainboard. The device may include a first capacitor provided in the annular radiation slot and having two electrodes respectively connected to both ends of the annular radiation slot in a width direction of the annular radiation slot, located between the feeding terminal and the first inductor in a length direction of the annular radiation slot.

The invention belongs to the field of electronic design automation, and discloses a multi-agent radio frequency circuit netlist generation method and system based on a large language model, and the method comprises the steps: preparing a data set, and constructing a knowledge base; the method comprises the following steps: receiving and analyzing a natural language demand of a user, combining a cue word project and an RAG mechanism, carrying out chained reasoning, introducing a radio frequency design rule, and converting the information into structured parameter information; combining RAG knowledge base retrieval and new topology generation, and fusing PDK process constraints to obtain candidate topologies and a simulation netlist; a simulation tool is called to execute parameter analysis, iterative optimization is conducted on parameters in combination with a closed-loop feedback mechanism, and a final netlist meeting user requirements is obtained. Automatic decomposition, parallel cooperation and high-speed iteration of design tasks are achieved through multi-agent cooperation and in combination with the radio frequency knowledge graph and the RAG; introducing physical constraints to enable the generated topological structure and parameters to meet the physical constraints; and a closed-loop simulation feedback mechanism is fused, so that the dependence on manpower is reduced.

The invention provides a novel low-cost miniaturized TRSiP packaging structure, which relates to the field of wireless communication equipment and comprises an upper ceramic dielectric plate, a lower ceramic dielectric plate, a radio frequency circuit and a metal enclosure frame, a first metal bonding pad is arranged on the upper surface of the upper-layer ceramic dielectric plate, and a second metal bonding pad is arranged on the upper surface of the lower-layer ceramic dielectric plate; the radio frequency circuit comprises a radio frequency generation assembly and a metal column. The radio frequency generation assembly is arranged on the lower ceramic dielectric plate, the radio frequency generation assembly is connected with the second metal bonding pad, the lower end of the metal column is connected with the second metal bonding pad, and the upper end of the metal column is connected with the first metal bonding pad; and the metal enclosure frame is arranged between the upper-layer ceramic dielectric plate and the lower-layer ceramic dielectric plate and surrounds the radio frequency circuit. The structure has the advantages of being low in cost, small in size, high in integration, good in air tightness and high in structural strength, and the reliability is greatly improved.

The invention discloses a pixelated matching circuit design and optimization method based on a large language model, and relates to the technical field of radio frequency circuits, and the method comprises the steps: obtaining a target demand and a physical constraint of a matching circuit; generating an initial topological structure based on the target demand and the physical constraint, and performing parameter estimation on the initial topological structure to obtain an initial binary matrix constrained by the initial topological structure and the parameter; obtaining an optimization problem based on the initial binary matrix and the target demand; wherein the optimization problem comprises distribution of optimization parameters, optimization objectives and solution spaces; and obtaining a key performance index and an optimization algorithm according to the optimization problem, and carrying out iterative search in the optimization algorithm according to the key performance index to obtain an optimal solution for solving the optimization problem so as to generate an optimal pixelated topology. According to the method, the optimal pixelated topology can be generated, and efficient global optimization is realized.

The application discloses a high-reliability high-power three-dimensional heterogeneous integrated radio frequency antenna integrated microsystem, comprising a DPC substrate, a copper-based three-dimensional structure, a two-stage SiC adapter plate, a bare chip, a radio frequency circuit, a passive device and an antenna interface; wherein the DPC substrate is used for realizing integrated three-dimensional heterogeneous integration of the microsystem; the copper-based three-dimensional structure comprises a three-dimensional coaxial transmission structure and a three-dimensional packaging frame structure, and is used for realizing vertical transmission of high-power radio frequency signals and air-tight packaging of the microsystem; the two-stage SiC adapter plate is used for realizing a 2.5D*2 five-layer ultra-high-density mixed three-dimensional stacking architecture; the bare chip comprises a silicon-based Fan-out multifunctional bare chip, a power management bare chip, a power amplifier bare chip and a receiving bare chip; the radio frequency circuit comprises a radio frequency transmitting circuit and a radio frequency receiving circuit. The application forms a complete integrated air-tight packaging microsystem, and simultaneously realizes high reliability, high-density integration and high-power heat dissipation.

The embodiment of the invention provides a radio frequency circuit and electronic equipment, and the radio frequency circuit comprises a radio frequency signal link which is connected with an antenna end and is used for transmitting a radio frequency signal of a radio frequency input end to the antenna end or receiving the radio frequency signal from the antenna end; the bi-directional coupler performs forward power detection and reverse power detection on the radio frequency signal on the radio frequency signal link to generate a forward power value and a reverse power value; the VSWR calculation network circuit is used for calculating a ratio between the forward power value and the reverse power value to obtain a power ratio; outputting a protection control signal based on the power ratio and a preset VSWR threshold value; the power limiting network control circuit receives the protection control signal and outputs a pull-down control signal based on the protection control signal; a plurality of power limiting networks, wherein each power limiting network is connected with the radio frequency signal link; and the power limiting networks are used for receiving the corresponding pull-down control signals and carrying out power pull-down on the radio frequency signals in the radio frequency signal link based on the pull-down control signals.

The invention relates to the technical field of radio frequency circuits, and provides a protection circuit, method and module of a radio frequency front-end circuit and a radio frequency device.The protection circuit comprises a bidirectional power detection module which is connected in series in a link from a power amplifier of the radio frequency front-end circuit to a radio frequency output end; the comparison trigger module is connected with the bidirectional power detection module; and the power control module is connected with the comparison trigger module and the power amplifier. The bidirectional power detection module detects forward power and reverse power of a link to form a first signal and a second signal, and the comparison trigger module performs comparison processing according to the first signal and the second signal and generates a trigger signal when the output power is too large or the standing-wave ratio is too large. And the power control module adjusts the output power of the power amplifier according to the trigger signal, so that negative effects on circuit elements caused by overlarge output power or overlarge standing-wave ratio are avoided, the circuit elements are protected from being damaged, high-precision protection on the radio frequency front-end circuit is realized, and the safety and the reliability are improved.

A radio frequency circuit includes first and second filters for first and second time division duplex (TDD) bands. Third and fourth filters cover third and fourth bands. A switch including a first terminal, a second terminal, and a third terminal to connect these filter to an antenna. The first terminal is connected to only the first filter and the second terminal is connected to only the second filter, among the filters having acoustic wave filters. The third terminal connects to both the third filter and the fourth filter. This configuration enables simultaneous transfer of a transmission signal of the first band and a reception signal of the second band, as well as simultaneous transfer of signals of the third and fourth bands. By isolating the TDD filters on separate terminals, signal quality and isolation are improved during simultaneous operation.

The invention relates to the technical field of radio frequency integrated circuits and advanced semiconductor packaging, in particular to a radio frequency resistor calibration structure based on an RDL process and a manufacturing method, and the radio frequency resistor calibration structure comprises a main resistor module, a redundant resistor module, a laser fine tuning module, a shielding layer module and a temperature compensation module. The main resistor module is sputtered into a film through a low-temperature coefficient metal alloy, and the high-frequency skin effect is reduced by adopting a snakelike or interdigital geometric layout; and the redundant resistor module drives metal ions to migrate through a narrow-neck structure and an electromigration effect, and compensates photoetching line width deviation and uneven sputtering thickness. The laser fine tuning module adjusts a conductive path through selective ablation or annealing of pulse laser, and forms closed-loop calibration in combination with real-time feedback of the metal induction electrode. And the consistency regulation and control of radio frequency circuit parameters of a packaging level are realized.

A method can include wireless circuits that, by operation of transmit switch circuits, include a transmit component in an output signal path between a transmit amplifier and an antenna port, the output signal path including a shared matching network. By operation of a transmit amplifier, an output signal can be generated for transmission over an output signal path to an antenna port. In a receive mode, by operation of the transmit switch circuits, an input impedance of the transmit component can be excluded from an input signal path between the antenna path and a receive amplifier. An input signal path can include the shared matching network. By operation of the receive amplifier, amplifying the received input signal. Corresponding devices and systems are also disclosed.

The invention provides a WIFI antenna impedance matching parameter generation method and device, equipment and a storage medium, and relates to the field of radio frequency circuit design. The method comprises the steps of obtaining input parameters in response to input operation; determining an initialization optimization parameter according to the input parameter; wherein the input parameter is basic data used for generating the impedance matching parameter of the WIFI antenna. On the basis of a preset optimization algorithm and the initialized optimization parameters, executing an operation of globally searching for an optimal solution, and determining candidate element parameters; and according to a preset application resonance constraint condition, carrying out forced correction on the candidate element parameters. Determining fundamental frequency impedance according to the forcibly corrected candidate element parameters; and if it is determined that the fundamental frequency impedance meets a preset fundamental frequency impedance matching degree threshold, determining that the candidate element parameters are WIFI antenna impedance matching parameters. Therefore, the problems of low design efficiency and single optimization target in the prior art are solved.

Provided are a satellite-based positioning method, an electronic device, a storage medium, a radio frequency circuit, and a terminal. The satellite-based positioning method is applied to the terminal, and the method comprises: determining at least one of multi-frequency positioning parameters, a positioning scenario, and a preset positioning precision requirement, wherein the multi-frequency positioning parameters comprise positioning performance parameters of each satellite-based positioning system among a plurality of satellite-based positioning systems on different frequency bands; on the basis of at least one of the multi-frequency positioning parameters, the positioning scenario, and the preset positioning precision requirement, determining a target adjustment strategy from among a plurality of adjustment strategies suitable for a multi-frequency satellite-based positioning scheme; and adjusting the multi-frequency satellite-based positioning scheme on the basis of the target adjustment strategy.

The invention relates to the technical field of mobile phone antennas, in particular to a mobile phone antenna and electronic equipment for exciting a floor characteristic mode based on a shunt feed technology, and the mobile phone antenna comprises a dielectric substrate, an antenna radiation metal patch on the outer side of the dielectric substrate, a metal floor arranged below the dielectric substrate, a low-frequency inverted-F antenna and a power divider, a first low-frequency feed port and a second low-frequency feed port are respectively arranged on corresponding radiation patches on two sides of the metal floor, and the two feed ports are simultaneously and electrically connected with an output end of the power divider through feeder lines, so that parallel feed of the low-frequency inverted-F antenna is realized, low-frequency characteristic modes of two long sides of the metal floor are simultaneously excited, and the low-frequency inverted-F antenna is formed. The low-frequency-band radiation efficiency is improved, the working bandwidth is expanded, and integration with a radio frequency circuit of the whole mobile phone can be completed only through a single excitation source.

A radio frequency circuit includes a first radio frequency circuit, a second radio frequency circuit, and a first switch circuit. The first switch circuit includes a first terminal connected to an antenna connection terminal, a second terminal connected to the first radio frequency circuit, and a third terminal connected to the second radio frequency circuit. The first radio frequency circuit includes a first power amplifier circuit supporting a first power class, and a first filter circuit connected to the first power amplifier circuit and having a passband that includes a first band. The second radio frequency circuit includes a second power amplifier circuit supporting a second power class having a maximum output power greater than a maximum output power of the first power class. The second radio frequency circuit includes a second filter circuit connected to the second power amplifier circuit and having a passband that includes the first band.

The present application relates to the field of communications, and discloses a radio frequency circuit, a power regulation method, and an electronic device, for use in when a power measurement of a radio frequency feedback path of an electronic device is abnormal, preventing an input power of a PA from exceeding an input power threshold of the PA. The radio frequency circuit comprises: a modem, an RFIC, a PA, an antenna port, a radio frequency feedback path, and an ADC. The modem is configured to: control the RFIC to traverse output power levels to obtain the calibration values of output powers of the PA respectively corresponding to the output power levels; determine the maximum output power level of the RFIC on the basis of the calibration values of the output powers of the PA; detect whether the power measurement of the radio frequency feedback path is normal; and if the power measurement of the radio frequency feedback path is abnormal, and if an output power of the PA measured by the radio frequency feedback path is lower than the calibration values of the output powers of the PA corresponding to the output power levels, control the output power level of the RFIC to be lower than or equal to the maximum output power level.

A radio-frequency circuit 1 includes a power amplifier configured to receive a first signal, a power amplifier configured to receive a second signal that is +90° relative to the first signal, a combiner circuit configured to combine in phase a third signal input from a fourth input port and a fourth signal input from a fifth input port, a phase shifter circuit coupled to a third output port of the power amplifier, a phase shifter circuit coupled to a fourth output port of the power amplifier, the forward phase of a fundamental wave in the phase shifter circuit being −90° relative to the phase shifter circuit, a harmonic phase shifter circuit coupled to the third output port, and a harmonic phase shifter circuit coupled to the fourth output port.

The invention discloses a high-reliability three-dimensional integrated direct sampling software radio architecture radio frequency microsystem, which is based on a direct sampling software radio system architecture and a multi-layer glass-based TGV adapter plate wafer-level bonded POP three-dimensional stacked packaging architecture. A high-performance glass antenna, silicon-based single core particle Fan-in and Fan-out packaging, mixed multi-core particle integration of an embedded glass-based TGV adapter plate, mixed bonding integration of a silicon-based digital TSV adapter plate and the glass-based TGV adapter plate are combined, and a glass antenna, a direct sampling core particle, a silicon-based computing power circuit, a silicon-based storage circuit and a silicon-based interface circuit are integrated. And the three-dimensional heterogeneous integration of the microsystem is realized. According to the micro-system, a glass substrate is used as a main body packaging material, a radio frequency circuit and a digital-analog hybrid circuit are fused, three-dimensional heterogeneous integration from a glass antenna to a baseband storage and calculation integrated processing circuit is realized, and a complete integrated airtight packaging micro-system is formed and can cover a DC-20GHz frequency band.

In one embodiment, an apparatus includes a baseband processor to generate a baseband signal and a digital pre-distortion (DPD) circuit to pre-distort the baseband signal with compensation information obtained from a lookup table. The lookup table may have a plurality of entries each to store a pre-distortion value, the lookup table to be addressed based on a target output power level of the baseband signal. The apparatus also may include a converter to convert the pre-distorted baseband signal to an analog signal and radio frequency (RF) circuitry comprising: a mixer to upconvert the analog signal to a pre-distorted RF signal, and a power amplifier to amplify the pre-distorted RF signal.

The present application relates to the technical field of radio frequency circuits. Provided are a radio frequency front-end module and an electronic device. The radio frequency front-end module comprises: a first antenna switch, a first filter assembly, a second filter assembly, a first power amplifier, a first low noise amplifier and a second low noise amplifier. The first filter assembly is used for transmitting signals in a first frequency band, and the second filter assembly is used for transmitting signals in a second frequency band. The first antenna switch is coupled to a first antenna, and the first antenna is used for transmitting transmission signals in the first frequency band and receiving reception signals in the first frequency band. In a first state, the first antenna switch is in a dual-on state, and can support low-band + low-band combination scenarios. In the low-band + low-band scenarios, the module can simplify circuits, reduce costs, and facilitate module miniaturization.

A wireless communication device is provided. The wireless communication device includes a first radio frequency circuit, a second radio frequency circuit, a third radio frequency circuit, a first antenna, a second antenna, a first switch including a first end, a second end, a third end, and a fourth end, and a second switch including a fifth end, a sixth end, and a seventh end. The first end connects to the first radio frequency circuit. The second end connects to the second radio frequency circuit. The third end connects to the first antenna. The fourth end connects to the fifth end. The sixth end connects to the third radio frequency circuit. The seventh end connects to the second antenna.

A radio frequency circuit includes a transmit filter for B66-Tx connected to a power amplifier, a transmit filter for B25-Tx connected to a power amplifier, a switch circuit having terminals, a switch circuit having a common terminal and terminals, and a switch circuit having a common terminal and terminals. The terminal is connected to the common terminal, the terminal is connected to the common terminal, the terminal is connected to the transmit filter, and the terminal is connected to the transmit filter. The switch circuit has a smaller stack number than the switch circuit, and the switch circuit has a smaller stack number than the switch circuit.

A radio frequency circuit includes a power amplifier configured to selectively amplify one of a first radio frequency signal and a second radio frequency signal that have different bandwidths, and when the first radio frequency signal is input to the power amplifier, a first bias signal is applied to the power amplifier, and when the second radio frequency signal is input to the power amplifier, a second bias signal different from the first bias signal is applied to the power amplifier.

The application discloses a kind of radio frequency synchronous signal circuit and synchronization method, belong to wireless communication technical field, solve the problem that existing device with full integration self-calibration function is difficult to meet miniaturization, low cost and wide frequency range synchronization demand;It includes radio frequency synchronous signal source, radio frequency synchronous signal source includes the phase detection circuit, FPGA circuit, DAC circuit, radio frequency circuit and output port connected in turn;The input end of phase detection circuit is respectively connected with two symmetrically arranged first frequency divider circuit and second frequency divider circuit in parallel.The full integration circuit of radio frequency synchronous signal source and automatic synchronization method are used in the application, miniaturization, low cost, wide frequency range and high-precision synchronization are realized, the port-to-port synchronization output of multi-channel radio frequency signal is realized, and the dependence on external equipment is eliminated and cable phase offset is compensated.

The invention discloses a radio frequency circuit and a control method thereof, a radio frequency heating device, equipment and a medium, and the control method comprises the steps: controlling the radio frequency circuit to work in a first state, and the first state comprises that the working frequency point of a signal generation device is a preset frequency point, and the output power of a power amplifier is preset power; the preset power is smaller than rated output power of the power amplifier; controlling the signal generation device to traverse frequency points in a predetermined frequency band, and detecting the reflection power of the power amplifier in real time to obtain a target frequency point corresponding to the minimum reflection power; and controlling the signal generating device to work at the target frequency point, and adjusting the attenuation value of the automatic level control device, so that the output power of the power amplifier is the rated output power, and the attenuation value corresponding to the rated output power is the target attenuation value. An isolator is not needed, and the power amplifier can output rated power under different working frequencies by adjusting the attenuation value of the automatic level control device.

The utility model relates to a radio frequency circuit and electronic equipment. The radio frequency circuit comprises an independent networking transceiver, a first power amplification module and a first power supply module. The first power amplification module is connected with the independent networking transceiver and is configured to perform power amplification on a first radio frequency signal output by the independent networking transceiver; and the first power supply module is connected with the first power amplification module and is configured to supply power to at least two power amplifiers of the first power amplification module. According to the embodiment of the invention, the circuit integration level can be improved, and the radio frequency circuit cost is reduced.

The utility model relates to aerosol generating equipment and an interaction system. The aerosol generating equipment comprises a metal shell, a radio frequency circuit and a signal transmission module, the radio frequency circuit and the signal transmission module are arranged in the metal shell; and the radio frequency circuit is electrically connected with the signal transmission module and is used for outputting a radio frequency signal to the metal shell through the signal transmission module, so that the metal shell serves as an antenna radiator to emit the radio frequency signal. According to the aerosol generating equipment, the radio frequency circuit and the signal transmission module are arranged in the metal shell, and the radio frequency signal output by the radio frequency circuit is output to the metal shell through the signal transmission module, so that the metal shell is directly used as an antenna radiator, a wireless communication function is realized, and the signal transmission module can transmit the radio frequency signal to the metal shell. And the all-metal shell meets the industrial design angle.

Embodiments of the present application provide a radio frequency compensation control method, a communication device and a storage medium, by determining the current connection state of the main radio frequency circuit and the antenna matching circuit in the radio frequency circuit of the communication device, and then performing at least one of power compensation and matching compensation on the communication device according to the connection state, the effect of providing different power compensation and / or matching compensation for the communication device under different connection states of the radio frequency circuit is realized, so that the communication device can have different radio frequency transceiving performance under different connection states of the radio frequency circuit, which can better meet the needs of the current working state of the communication device, and is beneficial to improve the accuracy of the test result of the communication device and the user experience of the communication device.

The utility model provides a C-band dual-channel emission multifunctional module based on HTCC packaging, which relates to the technical field of microwave radio frequency circuits, and comprises an HTCC multilayer board, and the HTCC multilayer board comprises a top layer circuit, a second layer circuit, a third layer circuit, a fourth layer circuit, a fifth layer circuit, a bottom layer circuit and an insulating medium layer arranged between the adjacent circuits which are sequentially arranged from top to bottom; the bottom-layer circuit is used for grounding, the second-layer circuit and the fourth-layer circuit are both vertically interconnected with the bottom-layer circuit, the third-layer circuit and the fifth-layer circuit are both vertically interconnected with the top-layer circuit, the third-layer circuit is provided with a radio frequency transmission line and a low-frequency signal line, and the fifth-layer circuit is provided with a low-frequency signal line; the top layer circuit comprises a power divider, two multifunctional chips, two power amplifier chips, a monitoring unit and a control unit. According to the utility model, the assembly and debugging difficulty can be reduced, the use reliability is improved, and the practicability is stronger.