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135 results about "Rf technology" patented technology

RF Wireless Technology A radio frequency (RF) signal refers to a wireless electromagnetic signal used as a form of communication, if one is discussing wireless electronics.

Radio frequency detection circuit and radio frequency power supply system

The invention provides a radio frequency detection circuit and a radio frequency power supply system, and relates to the technical field of radio frequency, and the radio frequency detection circuit comprises a detection unit, a parameter acquisition unit and a processing unit. The detection unit is used for being connected with a transmission path of radio frequency electric energy so as to detect the voltage and current of the transmission path to obtain a voltage detection signal and a current detection signal. The parameter acquisition unit is connected with the detection unit and is used for acquiring a first impedance parameter and a second impedance parameter according to the voltage detection signal and the current detection signal. And the processing unit is connected with the parameter acquisition unit and is used for obtaining the radio frequency parameter of the transmission path at least according to the first impedance parameter and the second impedance parameter. According to the invention, the radio frequency parameter of the transmission path can be rapidly obtained.
Owner:SHENZHEN RSPOWER TECH CO LTD

A method for optimizing signal transmission paths in an integrated RF terminal chip

This invention discloses a signal transmission path optimization method for an integrated RF terminal chip, relating to the field of RF technology. The invention includes: S100 real-time parameter acquisition, calculation of mismatch loss factor, impedance deviation factor, and interference rise factor; S200 weighted fusion of the three factors to obtain a disabling coefficient, constructing a disabling coefficient curve, performing curve feature analysis to generate a reconstruction index, and comparing it with a threshold to determine whether reconstruction is necessary; S300 when reconstruction is required, querying the target control word of the matching network and filter based on a multi-dimensional lookup table, and performing priority correction based on interference and power occupancy; S400 executing control word writing, verifying the effect, and if it does not meet the standard, performing local search and fine-tuning until performance is restored. This invention achieves adaptive optimization of signal transmission paths in multiple frequency bands and scenarios through a closed-loop dynamic reconstruction process of perception, decision-making, execution, and verification, effectively reducing mismatch loss and interference impact, and improving the overall performance of the RF terminal chip.
Owner:HARBIN INST OF TECH

Area-limited electronic cigarette working circuit and electronic atomizer

The present disclosure provides a region-restricted electronic cigarette working circuit, which comprises a monitoring chip, a region sensing module and an atomization switch module. The region sensing module interacts with an external reader / writer through built-in wireless radio frequency tags to identify the boundary of a smoking prohibited area in real time and output an induction signal to the monitoring chip. Based on the received induction signal, the monitoring chip sends on-off instructions to the atomization switch module through an atomization signal control terminal, thereby controlling the on-off of the heating element power supply circuit. This circuit realizes the automatic control of the electronic cigarette use area through wireless radio frequency technology, breaks through the time and space limitations of traditional manual supervision, directly blocks illegal smoking behavior at the hardware level, significantly improves the execution efficiency of public place smoking prohibition regulations, effectively reduces management costs and enhances real-time supervision, and provides technical support for building an intelligent smoking management system.
Owner:SHENZHEN MASON VAP TECH CO LTD

Small wide instantaneous bandwidth radio frequency receiving front end SiP module based on HTCC

The invention discloses a small-sized wide instantaneous bandwidth radio frequency receiving front-end SiP module based on an HTCC, and belongs to the technical field of microwaves and radio frequency. The radio frequency receiving front end is realized on the basis of an SiP module of the HTCC, the mirror image frequency is far away from the radio frequency signal frequency spectrum through a high local oscillator dual-frequency conversion mode, and the spurious component generated by frequency mixing is moved to a high-frequency area outside an intermediate-frequency passband, so that wide instantaneous bandwidth and high spurious suppression are realized. According to the invention, miniaturization of the SiP module is realized based on the HTCC technology; a secondary frequency conversion superheterodyne circuit architecture and a high local oscillator design are combined, so that the instantaneous working bandwidth is widened to 4GHz, and meanwhile, high spurious suppression is realized; in addition, the vertical interconnection structure is improved, long-distance low-loss transmission of radio-frequency signals is achieved, and the size is further reduced. The ultra-wideband low-noise amplifier has the advantages of miniaturization, wide instantaneous bandwidth, low noise amplification and high spurious suppression, and a solution is provided for miniaturization and low-cost mass production of an ultra-wideband radio frequency system.
Owner:UNIV OF ELECTRONICS SCI & TECH OF CHINA

Input overvoltage protection circuit for radio frequency adc

ActiveCN120856101BBalance-unbalance networksAnalogue-digital convertersOvervoltageMass analyzer
The application relates to radio frequency technology and particularly provides an input overvoltage protection circuit of a radio frequency ADC, which comprises an ADC acquisition unit; a switching unit is used for selectively making a voltage signal enter a first channel or a second channel, wherein an attenuation circuit is arranged in the second channel; the output ends of the first channel and the second channel are sequentially connected with a first radio frequency operational amplifier and the ADC acquisition unit, the first radio frequency operational amplifier completes single-end to differential conversion; and an identification circuit is connected with the output ends of the first channel and the second channel, and when it is identified that the voltage of the first channel exceeds a set value, the voltage signal selects the second channel. The application has the advantages of good protection effect and the like and can be applied in a mass spectrometer.
Owner:HANGZHOU PUYU TECH DEV CO LTD

UKey key management equipment

The utility model provides a UKey key management device which adopts a non-contact radio frequency technology to carry out intelligent management on access information of keys. Comprising a box body and a control module arranged in the box body, the box body is divided into an operation area and a storage area, the operation area is provided with a display module and an input keyboard which are electrically connected with the control module, and a box door is hinged to one side of the storage area; a plurality of rows of plug-in type storage assemblies, a card storage bag and an electromagnetic door lock which is matched with the box door and electrically connected with the control module are sequentially arranged in the storage area from top to bottom, and an infrared detection module and a non-contact radio frequency induction module which are electrically connected with the control module are further arranged in the storage area. The control module is electrically connected with an authorization module matched with the electromagnetic door lock. The key management system is applicable to the technical field of key management.
Owner:GANSU MINGRUI FUTURE TECH CO LTD

High-energy radio frequency sterilization intelligent flexible production method for edible mushrooms

The invention discloses a high-energy radio frequency sterilization intelligent flexible production method for edible mushrooms, and belongs to the technical field of edible mushroom production processes. The method comprises the following steps of substrate enzymolysis and blending, high-temperature fermentation, automatic bagging, high-energy radio frequency sterilization, heat pump cascade curing and cooling, sterile inoculation, intelligent fungus cultivation and flexible switching. According to the invention, the utilization rate of the matrix is improved through enzymatic treatment, rapid and low-consumption sterilization is realized by utilizing a high-energy radio frequency technology, energy recovery and accurate temperature control are carried out by combining a heat pump cascade technology, and flexible, intelligent and continuous production of multiple varieties of edible mushrooms is realized by matching with an intelligent control system. The method solves the problems of high energy consumption, high pollution rate and low automation degree of the traditional process, and has remarkable economic benefits and environmental protection advantages.
Owner:XUZHOU HAITAO REFRIGERATION EQUIP

Wideband hybrid coupler for constant bandwidth tuning with in-band and out-of-band radio frequency matching

The technology described herein is directed towards a wide-bandwidth, high-frequency (e.g., millimeter wave) hybrid coupler. One implementation of the hybrid coupler is passive and compact, is designed with a single top metallization layer, and does not require any interconnecting layer. The planar design can include four ports coupled to the four sides of a rectangular (e.g., square) metal plane portion, with cross-shaped slots that intersect in the center of the metal plane portion, and two back-to-back connected slanted bracket slots for efficiently routing E- and H-fields to other ports. Design tweaks can change the radio frequency (RF) characteristics of the hybrid coupler, including, for example, scaling the hybrid coupler dimensions to establish the center frequency, while retaining constant bandwidth. Other tweaks can be made to the dimensions of the cross-shaped slots. The design facilitates integration with other planar RF technologies.
Owner:DELL PROD LP

Power amplifier and radio frequency chip

The application is suitable for the field of radio frequency technology, and particularly relates to a power amplifier and a radio frequency chip. The power amplifier comprises a voltage conversion circuit, a bias control circuit and an amplification circuit. An input end of the voltage conversion circuit is used for receiving an external control voltage, and an output end of the voltage conversion circuit is connected to an input end of the bias control circuit. The voltage conversion circuit is used for converting the external control voltage into an output voltage and outputting the output voltage to the bias control circuit. The external control voltage and the output voltage have one of a linear relationship, a logarithmic relationship, an integral relationship and an exponential relationship. Compared with the prior art, the application converts the external control voltage into the output voltage with multiple mathematical relationships, and combines multiple-gear bias proportion adjustment to realize more flexible and more accurate power control of the power amplifier in different working modes, and improve the performance of the power amplifier.
Owner:LANSUS TECH INC

A time-domain pulsed source integrated with an antenna structure and method

PendingCN122291924AUltra-widebandTime domain
This invention discloses an integrated structure and method for a time-domain pulse source and antenna, belonging to the field of radar and radio frequency technology. It includes a housing containing a circuit board with an integrated pulse generation module and a matching optimization module. An antenna radiation module is also housed within the housing and connected to the radio frequency output terminal on the circuit board via an extremely short radio frequency feed structure. The matching optimization module acquires the excitation waveform from the pulse generation module and the radiation waveform from the antenna radiation module, and adjusts the pulse parameters of the pulse generation module or the structural parameters of the antenna radiation module to achieve integrated matching of the pulse source and antenna. This integrated structure and method for a time-domain pulse source and antenna solves the problem of decreased detection accuracy caused by signal tailing in ultra-wideband time-domain radar systems through joint optimization design of the pulse source and antenna, and is suitable for high-resolution, high-real-time anti-UAV detection and identification systems.
Owner:CHENGDU FEISTARI TECHNOLOGY CO LTD

Lighting device having a remotely controllable lighting distribution

A lighting device includes a freeform lens configured to accommodate multiple light-emitting diodes (LEDs), allowing for different light distribution patterns based on the position of the LEDs. A processing device selectively activates specific LEDs to achieve a desired light distribution pattern. A transceiver facilitates wireless communication with an external user device, enabling remote control. One or more sensors detect environmental factors, and a memory stores algorithms and profiles for automatically adjusting lighting characteristics based on sensor data and commands from the transceiver. The device can operate using infrared or radio-frequency technology and includes a machine learning module to adjust lighting based on learned user preferences and sensor data. A method for remotely controlling the lighting characteristics involves wirelessly receiving commands to adjust light distribution patterns and automatically adjusting the patterns based on environmental factors and predefined algorithms.
Owner:MAXLITE

Radio frequency control method based on tuning response and harmonic optimization

The invention discloses a radio frequency control method based on tuning response and harmonic optimization, and relates to the technical field of radio frequency, and the method comprises the steps: S1, generating an array configuration word in a target radio frequency system through employing a multi-capacitor switching array; s2, a multi-capacitor switching array is used for driving switch state switching to generate an initial radio frequency signal; s3, constructing an iterative optimization method to carry out iterative calculation on parameters of the notch filter; and S4, configuring the optimal notch parameter generated by iteration to the notch filter, and carrying out filtering correction on the initial radio frequency signal. Compared with the prior art, the method has the advantages that the frequency spectrum data of the radio frequency signal is acquired by means of the multi-capacitor switching array, and the harmonic residual measurement value of the system is reduced by constructing the iterative optimization process and combining the notch filter parameter iterative optimization and using the optimal notch parameter correction; the method has the advantages of effectively reducing residual stray power, maintaining high signal-to-noise ratio and low error performance, and reducing systematic interference.
Owner:CHENGDU XINGREN TECH CO LTD

Intelligent search and rescue device for severe environment based on radio frequency technology

The utility model discloses a harsh environment intelligent search and rescue device based on radio frequency technology, comprising a device main body, both ends of both sides of the device main body are integrally provided with end blocks, both sides of the interior of the device main body are provided with output shafts, both ends of the output shafts respectively penetrate to the outer sides of the end blocks at the corresponding sides, and the output shafts are connected with the device main body. An end block is arranged on the upper portion of the device body, a movable groove is formed in the surface of the end block, two clamping arms distributed up and down are movably installed in an inner cavity of the movable groove, and supports are arranged on the two sides of the device body. A tire driving mode is switched on a dry and flat road, the driving speed is increased, the search and rescue efficiency is improved, a track mode is switched on a muddy and bumpy road surface, a search and rescue vehicle cannot slip, the search and rescue vehicle can still move forwards normally to complete search and rescue work, the search and rescue efficiency is improved, and convenience is provided for work and use of a user.
Owner:ZHEJIANG WANHONG INTERNET OF THINGS TECH CO LTD

RFID data transmission method and system for highland construction environment

The application provides an RFID data transmission method and system for highland construction environment, which comprises the following steps: surveying the environment information of a construction area, adjusting the frequency band of an RFID antenna, determining a plurality of data reading positions of the construction area according to the environment information, configuring corresponding RFID tags for each data reading position respectively, carrying out anti-interference processing, reading real-time frequency data generated by each RFID tag, constructing construction information of the construction area, establishing a data transmission scheme, transmitting each real-time frequency data to a corresponding construction terminal for display, transmitting all real-time frequency data and construction information to a smart construction site platform for display, adopting ultrahigh frequency transmission and improving antenna gain, improving the read-write distance of RFID wireless radio frequency technology in the construction site, and combining with a radiation-proof device to improve the anti-interference capability.
Owner:THREE GORGES HI TECH INFORMATION TECH CO LTD

Wideband millimeter-wave quadrature coupler with constant bandwidth scalability

The technology described herein is directed towards a wide-bandwidth, high-frequency (e.g., millimeter wave) quadrature coupler. One implementation of the quadrature coupler is passive and compact, is designed with a single top metallization layer, and does not require any interconnecting layer. The planar design can include four ports coupled to the four sides of a rhombus / diamond metal plane portion, with cross-shaped slots that intersect in the center of the metal plane portion for efficiently routing E- and H-fields to other ports. Design tweaks can change the radio frequency (RF) characteristics of the quadrature coupler, including, for example, scaling the quadrature coupler dimensions to establish the center frequency, while retaining constant bandwidth. Other tweaks can be made to the dimensions of the cross-shaped slots. The design facilitates integration with other planar RF technologies.
Owner:DELL PROD LP

Hybrid filter

The invention discloses a hybrid filter, and relates to the technical field of radio frequency. The hybrid filter comprises a substrate, a piezoelectric layer, a transmission line resonator, an acoustic wave device and a connecting layer, wherein the piezoelectric layer is arranged on the surface of the substrate, and the piezoelectric layer is made of a high-dielectric-constant piezoelectric material; the transmission line resonator is arranged on the surface of the piezoelectric layer or arranged in the piezoelectric layer; the acoustic wave device is arranged in the piezoelectric layer; and the connecting layer is arranged on the surface of the piezoelectric layer and is used for connecting the transmission line resonator and the acoustic wave device. Therefore, the transmission line resonator based on the high-dielectric-constant piezoelectric layer and the acoustic wave device in the same piezoelectric layer form a three-dimensional and layer-stacked hybrid filter structure, so that the miniaturization of the hybrid filter formed by the high-dielectric-constant transmission line resonator and the acoustic wave device is realized; therefore, the problems of impedance mismatch, insertion loss superposition and the like are effectively reduced while the excellent performances of high selectivity, wide band and high power tolerance are realized.
Owner:UNIV OF SCI & TECH OF CHINA

Four-dimensional antenna array system based on grid control type time modulation active radio frequency module

The invention discloses a four-dimensional antenna array system based on a grid time modulation active radio frequency module, and belongs to the technical field of wireless communication and radio frequency. According to the system, the grid bias control of the radio frequency power amplifier is combined with the time modulation time sequence of the four-dimensional antenna array, so that the same power amplifier has signal amplification and high-speed on-off functions. In the working process of the four-dimensional antenna array, the grid bias voltage is periodically switched, so that efficient time modulation of the radiation unit is realized, a signal is amplified during the turn-on period, and zero static power consumption is realized during the turn-off period. According to the four-dimensional antenna array, the problems of insertion loss and static power consumption in the turn-off period of a traditional radio frequency switch and power amplifier framework in the four-dimensional antenna array are effectively solved, the system efficiency is remarkably improved, the four-dimensional antenna array is particularly suitable for being applied to the four-dimensional antenna array with low duty ratio, multiple beams and rapid beam scanning, and the four-dimensional antenna array has the advantages of being simple in structure, low in cost, high in modulation speed and the like.
Owner:UNIV OF ELECTRONICS SCI & TECH OF CHINA

Phase comparison circuit and radio frequency chip

This invention relates to the field of radio frequency (RF) technology, and particularly to a phase comparison circuit and an RF chip. The phase comparison circuit includes a first amplifier, a second amplifier, a first frequency divider, a second frequency divider, a first Schmitt trigger, a second Schmitt trigger, a first flip-flop, a second flip-flop, an AND gate, a first filter unit, and a second filter unit. The input of the first amplifier receives a first RF signal, and its output is connected to the input of the first frequency divider. The input of the second amplifier receives a second RF signal, and its output is connected to the input of the second frequency divider. The first and second frequency dividers are used to down-convert the amplified first and second RF signals, respectively. Compared with existing technologies, the phase comparison circuit provided by this invention has a simple structure, a wide phase detection range, stable output, and can effectively reduce the complexity of RF front-end power control.
Owner:LANSUS TECH INC

Copper wire sewing thread ultra-high frequency antenna and manufacturing method

PCT designated stageWO2026143697A1Copper wireUhf antennas
The present invention relates to the technical field of ultra-high frequency radio frequency antennas. Disclosed are a copper wire sewing thread ultra-high frequency antenna material and a method for manufacturing an ultra-high frequency antenna by using a sewing machine. The copper wire sewing thread ultra-high frequency antenna comprises a copper wire sewing thread formed by twisting a bare copper wire and a sewing thread, and the copper wire sewing thread is sewn on a tag fabric substrate, so as to form the copper wire sewing thread ultra-high frequency antenna. The manufacturing method comprises the steps of performing twisting to form a copper wire sewing thread, determining a sewing type, determining a sewing stitch trajectory, a sewing stitch pitch and a sewing length, sewing the copper wire sewing thread onto a tag fabric substrate, etc. The copper wire sewing thread ultra-high frequency antenna of the present invention has good electrical conductivity, a small diameter, high tensile strength and good flexibility; the ultra-high frequency antenna is manufactured by means of a high-speed sewing machine on the basis of a fabric material, thus offering advantages of resistance to washing, resistance to folding and pressing, resistance to ironing, as well as high manufacturing efficiency; and the manufacturing cost thereof is low, facilitating wide application of radio frequency technology in the footware and apparel industry, linen industry and bag industry, thereby improving the level of information-based management.
Owner:JIAO LIN

Sports movement counting and rule violation judging method based on human posture recognition

The application discloses a sports movement counting and rule-breaking action judging method based on human body posture recognition, and comprises the following steps: step A, human body recognition; step B, personnel screening; step C, repeated action detection based on human body key point detection technology; and step D, rule-breaking action judgment. The application uses human body key point detection technology of deep learning, calculates the relative position and relative angle of each limb part according to the position information, thereby judging what action the test personnel is doing, whether the action is in place, and whether there is a rule-breaking situation. Finally, in combination with time domain information, the preceding and subsequent multiple frames of actions are associated, and whether the human body accurately completes each standard action is judged. When each action is sequentially and normally completed, the system automatically counts. The application automatically adapts to different human body features, and compared with infrared radio frequency technology, the counting accuracy is high.
Owner:GODYS (HANGZHOU) INTELLIGENT TECH CO LTD

Radio frequency circuit and electronic equipment

The invention discloses a radio frequency circuit and electronic equipment, and belongs to the technical field of radio frequency. The radio frequency circuit comprises a radio frequency transceiver, a radio frequency processing module and a plurality of antennas, the radio frequency transceiver comprises a plurality of transmitting ports; the radio frequency processing module comprises a first front-end module, a second front-end module and a multiplexer switch module; a plurality of transmitting ports of the radio frequency transceiver are connected with the second front-end module through the multiplexer switch module, so that a plurality of second signal transmitting channels from each transmitting port to the corresponding second front-end module are mutually independent; and the number of the plurality of second signal transmitting channels is greater than or equal to the number of second antennas connected with the corresponding second front-end module, so that SRS polling transmission on the plurality of second antennas is realized in a channel sounding reference signal SRS polling mode, and channel sounding reference signals SRS of each transmitting port do not conflict.
Owner:ZTE CORP

Radio frequency circuit and electronic equipment

The invention discloses a radio frequency circuit and electronic equipment, and relates to the technical field of radio frequency. In the radio frequency circuit, the output end of a first transmitting unit and the output end of a second transmitting unit are connected with the first end of a radio frequency front-end circuit through a switch. The first transmitting unit only serves for a data service, and the second transmitting unit only serves for a call service. And the receiving unit is connected with the second end of the radio frequency front-end circuit. And the third end of the radio frequency front-end circuit is connected with the antenna unit. The control unit is used for controlling the switch. Therefore, if the electronic equipment starts to execute the call service in the process of executing the data service, the first transmitting unit does not need to be reconfigured. In this way, the time required for hardware configuration of the electronic equipment in the DSDA working mode can be effectively shortened, so that the jamming phenomenon when the electronic equipment executes data services in the DSDA working mode is effectively improved, and the user experience effect is improved.
Owner:HONOR DEVICE CO LTD

In-vitro diagnostics sensing system and in-vitro diagnostics sensing method of determining a presence of a fluid substance based on radio-frequency technology

In-vitro diagnostics (IVD) sensing system (10) for a determination of a presence of a fluid substance (1) based on radio-frequency (RF) technology, the IVD sensing system comprising: one or more antennas (2), wherein at least one first antenna (2a) of the one or more antennas (2) is configured to emit an RF signal (3a) and wherein the at least one first antenna (2a) and / or an at least one second antenna (2b) of the one or more antennas (2) is / are configured to receive the RF signal (3b) emitted by the at least one first antenna (2a); a sample space (4) being positioned with respect to the one or more antennas (2) such that the RF signal (3a) can pass at least a portion of the sample space (4) after being emitted and before being received and the sample space being configured to receive a sample support (5) for receiving the fluid substance (1); and a transformer (6) being configured to transform the received RF signal (3b) into a readable signal (7) that is sensitive to indicate the presence of the fluid substance (1) in the sample support (5) having a substance volume (V) in a range between 500µL and 0.1µL, specifically in a range between 20µL and 0.5µL.
Owner:F HOFFMANN LA ROCHE & CO AG +2

A terahertz signal generation system and method based on space optical radio frequency technology

This invention discloses a terahertz signal generation system and method based on space-based optical radio frequency technology, comprising an optical comb generation module, an optical carrier frequency selection and modulation module, a transmission module, and a photoelectric conversion module arranged sequentially. The optical comb generation module generates an optical frequency comb. The optical carrier frequency selection and modulation module selects at least two optical carriers from the optical frequency comb and modulates the optical carriers with radio frequency signals to obtain multiple optical signals. The invention utilizes space-based optical radio frequency technology to achieve the generation and transmission of ultra-wideband terahertz signals, overcoming the bandwidth limitations of traditional electronic technology and the problem of excessive loss of terahertz signals during long-distance transmission. Optical injection locking technology is used to suppress spurious signals generated during optical domain signal processing. Furthermore, the reconfigurable generation of terahertz signals can be achieved through the joint control of the local oscillator signal and dual lasers, realizing the generation and transmission of high-speed, stable, and low-spurious broadband terahertz communication signals.
Owner:XIAN INSTITUE OF SPACE RADIO TECH

Impedance matcher and electronic device

The utility model provides an impedance matcher and electronic equipment, and relates to the technical field of radio frequency. The impedance matcher comprises a shell, an isolation plate, an impedance matching assembly, a control assembly and a fan assembly. The shell is provided with an accommodating cavity. The isolation plate is arranged in the accommodating cavity and is used for isolating the accommodating cavity into a first sub-cavity and a second sub-cavity; the impedance matching assembly is arranged in the first sub-cavity. The control assembly is used for adjusting the matching impedance value of the impedance matching assembly, the fan assembly is at least used for cooling the control assembly, the control assembly and the fan assembly are both arranged in the second sub-cavity, and the control assembly is connected with the impedance matching assembly through an isolation plate. According to the invention, electromagnetic shielding in the impedance matcher can be effectively realized.
Owner:SHENZHEN RSPOWER TECH CO LTD

A power amplifier combining device

The present application relates to the field of radio frequency technology, and more particularly to a kind of power amplifier synthesis device, including first power amplifier output matching circuit and second power amplifier output matching circuit, first power amplifier output matching circuit includes sequentially connected first power amplifier pair tube, first group impedance circuit and first output, second power amplifier output matching circuit includes sequentially connected second power amplifier pair tube, second group impedance circuit and second output;Combiner includes first input, second input and third output;First output is connected first input, second output is connected second input, the output impedance of first output and the output impedance of second output are all less than 50 ohms, the input impedance of first input and the input impedance of second input are all less than 50 ohms, the output impedance of third output is 50 ohms, by reducing the output impedance of first output, second output and the input impedance of combiner input, effectively reduce overall volume, reduce loss, improve synthesis efficiency.
Owner:CHENGDU JIACHEN TECH

Radio frequency incoming call remote answering system based on signal relay

PendingCN120915346AEavesdropping prevention circuitsRadio transmissionCommunications securityTime domain
The invention discloses a radio frequency incoming call remote answering system based on signal relay, comprising: an incoming call detection module for performing time domain analysis on a mobile phone emission signal through a radio frequency technology in a shielding box, and judging whether an incoming call exists in combination with a high-frequency boundary filtering and burst packet statistical mode; the signal bridging module is used for transmitting the incoming call information to the relay communication module through a digital interface; a relay communication module; a virtual call terminal; a channel encryption mechanism; the power supply management system has a low-power-consumption wake-up mechanism and long-time endurance support, and is suitable for an outdoor environment or a high-safety place; the method has the advantages that communication safety is guaranteed, remote answering is achieved, and a mobile phone is prevented from being exposed; the system can be expanded to be used for military police, government, anti-monitoring and other high-security demand scenes; a user does not need to carry a main mobile phone, and convenience and privacy are enhanced.
Owner:苏州蓝鲸量子科技有限公司

Terahertz signal generation system and method based on space radio-over-fiber technology

The invention discloses a terahertz signal generation system and method based on a space radio-over-fiber technology. The terahertz signal generation system comprises an optical comb generation module, an optical carrier frequency selection and modulation module, a transmission module and a photoelectric conversion module which are arranged in sequence. The optical comb generation module is used for generating an optical frequency comb; the optical carrier frequency selection and modulation module is used for screening out at least two optical carriers from the optical frequency comb and carrying out radio frequency signal modulation on the optical carriers to obtain multiple paths of optical signals; according to the invention, generation and transmission of ultra-wideband terahertz signals are realized by using a space radio-over-fiber technology, the problems of bandwidth limitation of a traditional electronic technology and overlarge loss of the terahertz signals during long-distance transmission are solved, and spurious signals generated in an optical domain signal processing process are suppressed by using an optical injection locking technology. Reconfigurable generation of terahertz signals can be realized through combined regulation and control of local oscillator signals and double lasers, and generation and transmission of high-speed, stable and low-stray broadband terahertz communication signals are realized.
Owner:XIAN INSTITUE OF SPACE RADIO TECH

Electric power material distribution device based on radio frequency technology

The invention relates to the technical field of electric power material logistics conveying equipment, and discloses an electric power material distribution device based on a radio frequency technology, the electric power material distribution device comprises a plurality of supporting rods, a fixing rod is fixedly connected between every two supporting rods, and a self-adaptive supporting assembly is arranged in each supporting rod; wherein radio frequency sensors are fixedly connected to the top ends of several supporting rods, a fixing shaft is fixedly connected between the supporting rods, a telescopic conveying mechanism is arranged between the supporting rods, a controller is electrically connected to the outer portions of the radio frequency sensors, and an electric power material distribution management system based on the radio frequency technology is arranged in the controller. A pressure sensor, an oil delivery pump and a hydraulic rod adjusting loop are arranged in the supporting assembly, self-adaptive stable supporting of the device on complex terrains is achieved, and the problems that traditional conveying equipment is high in ground flatness requirement and prone to inclination and instability in the field environment are solved; and the structural stability and the operation safety of the electric power materials in the distribution process are ensured.
Owner:MATERIALS COMPANY OF STATE GRID TIANJIN ELECTRIC POWER

Pulsed radiator

PendingCN122178853AHigh frequency amplifiersGain controlMicrowavePulse radiation
The application provides a pulse radiator, relates to the field of microwave radio frequency technology, and comprises a radio frequency multistage amplification link and a measurement and control communication component; the radio frequency multistage amplification link generates an output pulse signal; the measurement and control communication component performs real-time monitoring and regulation on the output pulse signal, and is configured with a self-adaptive degradation fault prevention shutdown control strategy. In a continuous radiation working mode, operating state parameters are continuously acquired; when the operating state parameters reach a preset warning limit, the self-adaptive degradation control is triggered, a dynamic attenuation control code is issued to reduce the output gain to enter a degradation working mode; during the degradation working mode, the parameter development trend is continuously monitored; when the parameters recover to a safe interval, the dynamic attenuation control code is reversely adjusted to smoothly recover the output gain to the initial setting state. The application prevents hard power-off shutdown of the equipment caused by abnormal working conditions, and maintains continuous radiation of the signal.
Owner:SUZHOU TALENT MICROWAVE INC