708 results about "Radio frequency circuits" patented technology

The invention provides an adjustable power distribution circuit capable of realizing any polarization mode, the adjustable power distribution circuit is positioned between a radio frequency circuit and at least one antenna assembly, the adjustable power distribution circuit comprises an input signal part, at least two signal control parts, a processing unit and at least one orthogonal coupling circuit, the input signal part can convert a radio frequency signal from the radio frequency circuit into a plurality of corresponding input signals and transmit the input signals to each signal control part, each signal control part can convert the input signals into corresponding control signals according to a processing instruction of the processing unit and then transmit the control signals to the orthogonal coupling circuit, and the orthogonal coupling circuit transmits the control signals to the radio frequency circuit. And the orthogonal coupling circuit generates two output signals with a phase difference of 90 degrees, and transmits the output signals to the antenna assembly. Therefore, the adjustable power distribution circuit can enable the antenna assembly to form a linear polarization mode, a circular polarization mode or an elliptical polarization mode in any direction according to actual requirements of products.

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 relates to a preparation method of a surface acoustic wave filter integrated with a CMOS (Complementary Metal Oxide Semiconductor) process, which comprises the following steps of: preparing a CMOS radio-frequency signal processing circuit by using a silicon or silicon carbide substrate, combining a dielectric buffer layer with a piezoelectric material, and then depositing a metal interdigital structure on the surface of the piezoelectric material to prepare the surface acoustic wave filter. A passivation layer is deposited on the surface of the filter to protect the filter structure, finally a metal interconnection line and the passivation layer are prepared above the filter, and in order to not affect the performance of the filter, an air cavity is prepared between the passivation layer and the metal interconnection layer of the filter, so that the passivation layer and the metal interconnection layer are effectively isolated. According to the preparation method, the surface acoustic wave filter and the CMOS radio frequency circuit can be integrated, the problem that radio frequency front-end and rear-end signal processing cannot be integrated at the same time at present is solved, and the preparation method plays an important role in promoting development of a radio frequency chip in the directions of high integration, low cost, miniaturization and the like; and the radio frequency chip has wide practical value and economic value in the radio frequency chip application field.

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.

An electronic device is provided. The electronic device includes a plurality of antennas, a radio frequency (RF) circuit including an amplifier configured to amplify an RF signal and a switching circuit configured to selectively connect the amplifier to at least one antenna among the plurality of antennas, memory storing one or more computer programs, and one or more processors electrically connected to the memory and the RF circuit, wherein the one or more computer programs include computer-executable instructions, when executed by the one or more processors individually or collectively, cause the electronic device to identify a first power of a first transmission signal corresponding to a first frequency band, transmitted through the RF circuit, and, based on identifying that the first power is greater than or equal to a set second power, control the switching circuit so that the first transmission signal is simultaneously transmitted through at least two antennas among the plurality of antennas at a transmission time of the first transmission signal.

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 discloses a radio frequency circuit, electronic equipment and a power detection method, and belongs to the technical field of electronics. The radio frequency circuit comprises a radio frequency transceiver and an antenna; the power transmitting path is connected with the radio frequency transceiver; the first coupling path and the second coupling path are connected between the power transmitting path and the antenna and are used for coupling the power transmitting signals of the power transmitting path to respectively obtain a first signal and a second signal; the power detection path comprises a phase shifter and an adder, the phase shifter is connected with the second coupling path and used for performing phase shifting processing on the second signal according to the target phase difference between the first coupling path and the second coupling path to obtain a third signal, and the adder is connected with the radio frequency transceiver, the first coupling path and the phase shifter and used for performing phase shifting processing on the second signal according to the target phase difference between the first coupling path and the second coupling path. And the superposition module is used for superposing the first signal and the third signal to obtain a fourth signal and inputting the fourth signal into the radio frequency transceiver, and the radio frequency transceiver is used for determining a first power value of the power transmitting signal according to the fourth signal.

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 radio frequency circuit includes: a first filter having a passband that includes a downlink band of a first band and a downlink band of a second band; a second filter having a passband that includes the downlink band of the first band and a downlink band of a third band; and a first switch that includes a first terminal connected to an antenna connection terminal, a second terminal connected to the first filter, and a third terminal connected to the second filter. The downlink band of the first band, the downlink band of the second band, and the downlink band of the third band at least partially overlap one another, and a combination of the first band and the second band and a combination of the first band and the third band are included in predefined band combinations for simultaneous communication.

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 utility model provides an antenna matching circuit and a radio frequency circuit, and relates to the technical field of radio frequency circuits. In the antenna matching circuit, the output end of a signal generation circuit is connected with the input end of a link module, an antenna is respectively connected with the output end of the link module and a coupling circuit, and a control circuit is respectively connected with the coupling circuit and the signal generation circuit; after receiving the test instruction of the control circuit, the signal generation circuit sends a test signal to a transmitting link connected with the coupling circuit; the coupling circuit sends a reflection signal corresponding to the test signal to the control circuit; the control circuit is used for triggering and outputting a link opening instruction for instructing the link module to open a transmitting link to the link module after receiving the reflected signal; and the link module is used for opening a transmitting link corresponding to the link opening instruction. According to the embodiment of the invention, the bandwidth of the radio frequency circuit is effectively expanded, the radio frequency circuit can adapt to different antennas conveniently, and the compatibility of the radio frequency circuit is enhanced.

The embodiment of the invention provides a radio frequency circuit, a radio frequency system and communication equipment. When the radio frequency circuit is arranged in a radio frequency system, the radio frequency circuit can be matched with a baseband chip which supports receiving baseband receiving signals of different frequency bands and outputs baseband transmitting signals of different frequency bands in the radio frequency system. The radio frequency circuit comprises a power amplification circuit, a low-noise amplification circuit and a first switch. The radio frequency circuit comprises a transmitting port, a receiving port and an antenna port. The first switch comprises a first end, a second end, a third end and a fourth end. The transmitting port of the radio frequency circuit is connected with the input end of the power amplification circuit, and the receiving port of the radio frequency circuit is connected with the output end of the low-noise amplification circuit. The output end of the power amplification circuit is connected with the first end of the first switch; the input end of the low-noise amplification circuit is connected with the second end of the first switch. And the third end and the fourth end of the first switch are respectively connected with an antenna port of the radio frequency circuit.

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.

The embodiment of the invention provides a radio frequency circuit capable of temperature compensation, a control method, a control module and a radio frequency chip, and the radio frequency circuit comprises a radio frequency link which comprises an amplifier and at least one attenuator; the temperature acquisition module is used for acquiring the current temperature to obtain quantized temperature information; the register module is used for searching and outputting a corresponding target control signal based on the temperature information; the register module stores a corresponding relation between the target control signal and the temperature information; the at least one voltage generation module is used for performing digital-to-analog conversion on the target control signal to generate a first voltage; the attenuator is used for adjusting the gain of the attenuator according to the first voltage; wherein the target control signal controls the trend of the gain of the attenuator along with the temperature change, and the trend is opposite to the trend of the gain of the amplifier along with the temperature change. According to the embodiment of the invention, the gain stability of the radio frequency link at different temperatures can be ensured.

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 relates to the technical field of radio frequency power supplies, and discloses a quick arc extinguishing method based on a radio frequency power supply, which comprises the following steps: acquiring the power supply working time of the radio frequency power supply in a radio frequency circuit, and acquiring the power supply incident power of the radio frequency power supply when the power supply working time is longer than a preset time; judging whether the incident power of the power supply is greater than a preset incident power threshold value or not; if yes, acquiring the radio frequency power supply reflection power of the radio frequency power supply; when the power supply reflection power is smaller than a preset reflection power threshold value, performing arc detection on the radio frequency circuit based on the power supply incident power and the power supply reflection power; and when the electric arc exists in the radio frequency circuit, reducing the radio frequency power from P1 to P2, after a preset time, uniformly increasing the radio frequency power to P1 within a specified time, and repeating the steps for many times until the electric arc of the radio frequency circuit cannot be detected. The invention further provides a rapid arc extinguishing device and equipment based on the radio frequency power supply and a storage medium. The arc extinguishing speed can be improved.

The invention provides a communication system and a communication method so as to reduce implementation complexity and cost of the communication system for processing large-bandwidth signals. The communication system provided by the invention comprises a baseband circuit, N radio frequency circuits and a first combiner, the baseband circuit is connected with the N radio frequency circuits, and the radio frequency circuits are connected with the first combiner. The baseband circuit is used for outputting N baseband signals; wherein N is an integer greater than or equal to 2. And the N radio frequency circuits are used for processing the N baseband signals to obtain N radio frequency signals, each radio frequency circuit in the N radio frequency circuits is used for processing one baseband signal in the N baseband signals, and the frequency range of the N radio frequency signals is continuous in the frequency domain. And the first combiner is used for combining the N radio frequency signals to obtain a first target radio frequency signal, and the bandwidth of the first target radio frequency signal is the sum of the bandwidths of the N radio frequency signals.

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.