62 results about "Rf testing" patented technology

The invention discloses a frequency mixer test method, and relates to the technical field of microwave radio frequency test, and the method comprises the following steps: S1, building a test platform; s2, calibrating the test platform; s3, testing indexes; and according to the received reflection signal and standing wave signal, port isolation test, frequency conversion loss test, port standing wave test and output 1dB compression point test are carried out on the mixer to be tested, and a test curve of each index is drawn after the test is completed. According to the method, all key indexes of the mixer can be tested at different power frequency points through one-time calibration, meanwhile, standing wave testing of the LO port under high power can be achieved, the testing efficiency and accuracy are greatly improved, and the technical problems that in the prior art, multiple times of calibration are needed in the testing process, and the testing efficiency is low are solved.

The utility model discloses a fixture for a 5G chip radio frequency test. The fixture comprises a test base, a first start button, a second start button, a scram button, a flatness sensor, a profiling positioning groove, a translation guide rail, a translation cylinder, a translation frame, a pressure head, a pressure head cylinder, a code reading assembly and a controller. Through the above mode, the clamp for the 5G chip radio frequency test greatly improves the production efficiency and the test accuracy and stability, thereby improving the production yield, reducing the labor intensity of workers, reducing the production cost, and improving the test safety.

Techniques for determining calibration data associated with a radio frequency (RF) testing environment are discussed herein. For example, an RF signal can be input to the RF enclosure and selectively applied to discrete attenuators. The attenuators can attenuate a strength of the signal and a signal strength can be measured by various user equipment (UEs) that are located within an RF enclosure. In some examples, a plurality of measured reference signal received power (RSRP) values can be determined by a plurality of UEs associated with a particular attenuation level. Different attenuation levels can be measured, and an average attenuation can be determined for attenuation steps. Measured attenuation steps can be extrapolated to other attenuation levels to expedite the calibration process. Then, a testing plan can be applied to the RF enclosure and the calibration data can be used to ensure accurate signals for testing UEs.

1. Name of this product design: Radio Frequency Test Head. 2. Purpose of this design: To be installed on a test fixture for testing the conversion of an RF coaxial connector into an RF switch connector. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: 3D view 1.

The invention provides an FCC, ISED and MIC application file automatic generation tool, and the system comprises a data extraction module which is used for extracting test data related to a plurality of wireless technologies from a radio frequency test report, and the test data at least comprises the maximum power, the bandwidth and the modulation mode; the data processing module is used for converting the extracted test data into standard data conforming to an FCC, ISED or MIC application format; and the application file generation module is used for automatically filling the processed standard data into the corresponding blank application template to generate a complete FCC, ISED or MIC application file. By integrating the data extraction, processing and file generation module, automatic filling of FCC, ISED and MIC authentication application files is realized, multi-standard radio frequency parameters can be automatically extracted from a test report, the efficiency and accuracy of authentication file preparation are remarkably improved, the labor cost and the error risk are reduced, and the product authentication period is shortened.

The invention provides a radio frequency test control system and a radio frequency test method. The radio frequency test control system comprises an upper computer used for sending a control instruction of a radio frequency test task; the data processing system is connected with the upper computer and used for providing level and time sequence control for the radio frequency test task and generating a path switching instruction of the radio frequency test task based on the control instruction; the test daughter board is connected with the data processing system and used for providing a radio frequency test task test piece so as to execute a radio frequency test task; the coaxial switch is connected with the test daughter board and used for switching a radio frequency test path based on the path switching instruction; the data acquisition system is connected with the test daughter board through a coaxial switch, communicates with an upper computer through a network, and is used for acquiring test data of the test piece and sending the test data to the upper computer; and the power supply system is used for providing a plurality of working power supplies with different voltages so as to provide working voltages for the radio frequency test control system.

The embodiment of the specification relates to the technical field of repeater testing, and provides a repeater radio frequency performance testing method, device, system and equipment, which comprises the following steps: receiving a to-be-tested index input by a user on an interactive interface; obtaining to-be-tested repeater equipment parameters, and configuring test parameters for a testing instrument according to the to-be-tested repeater equipment parameters; matching a target test case from a test case set according to the to-be-tested index; determining a test path according to the target test case; executing the target test case according to the test parameters and the test path to obtain a radio frequency performance test result; and judging whether the radio frequency performance test result meets a preset standard. Through the embodiment of the specification, the efficiency and accuracy of repeater radio frequency testing can be improved.

A radio frequency (RF) test device such as a spectrum analyzer may include an RF attenuator to attenuate a received RF signal; a mixer to down-convert the attenuated RF signal; an IF attenuator to attenuate the down-converted signal; an analog-to-digital converter (ADC) to digitize the attenuated, down-converted signal; and a processor, which may select attenuation values for one or more of the RF attenuator and the IF attenuator based on an error magnitude vector (EVM) analysis, an RF signal type, and a signal level at an input of the ADC. The processor may use a look-up table for the selection. Initial attenuation values may be selected based on an expected RF signal type, RF signal frequency, or RF signal bandwidth. The attenuation values may also be selected in an iterative manner stepping the attenuation values up or down.

1. The name of the design product: Radio frequency test box (iODM-SC8). 2. The use of the design product: The design product is used for testing equipment for detecting the radio frequency performance of the circuit board. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view 1.

The utility model relates to the technical field of radio frequency test, in particular to a high-stability radio frequency test probe seat structure, which comprises a probe seat, and a probe is mounted on the probe seat through a probe arm. A bottom plate is fixed at the bottom of the probe seat, a second metal plate and a first metal plate which are attached to the mounting platform and are arranged up and down are arranged at the bottom of the bottom plate, and the ball is arranged in the second metal plate through a first elastic piece; the strong magnetic plate is arranged in the first metal plate and the second metal plate, the top of the strong magnetic plate is fixedly provided with a lifting rod, one end of the lifting rod penetrates through and extends to the position above the second metal plate, the lifting rod is fixed to the position below the bottom plate, and the outer side of the lifting rod is sleeved with a second elastic piece located between the bottom plate and the second metal plate. Tension of the first elastic piece enables the ball to be tightly attached to the installation platform, the probe base can flexibly move through the ball, and the rolling characteristic of the ball can allow the probe base to adjust the position in a self-adaptive mode within a small range.

The present disclosure provides an antenna in package, a RF chip, a test device and a test method. The antenna in package includes at least one antenna, one or more coupling structures and at least one testing terminal. The at least one antenna, the one or more coupling structures and the at least one testing terminal are disposed in a package body. The one or more coupling structures are coupled to one or more radiation units of the at least one antenna, and each coupling structure of the one or more coupling structures is coupled to a respective testing terminal of the at least one testing terminal. The one or more coupling structures are configured to transmit RF test signals of a RF link in which the one or more radiation units are disposed during testing the RF link.

The application relates to the technical field of chip radio frequency test, and discloses a radio frequency test equipment convenient to adjust, which comprises a test table, a threaded rod one is rotationally connected in the test table, a lifting plate is screw-connected to the outer wall of the threaded rod one, a bevel gear one is fixedly connected to the outer wall of the threaded rod one, a test box is fixedly connected to the upper surface of the lifting plate, a display screen is arranged on the upper surface of the test box, a microscopic camera is arranged on the lower surface of the display screen, a radio frequency interface is fixedly connected to the outer wall of the test box, one end of a cable is fixedly connected to the inside of the radio frequency interface, and the other end of the cable is fixedly connected with a radio frequency test probe. The synchronous rotation of the threaded rods one on the two sides of the lifting plate can ensure that the movement of the two sides is consistent, thereby ensuring the vertical movement of the radio frequency test probe, helping to improve the test precision, and avoiding test errors or poor contact between the radio frequency test probe and test points caused by asymmetric movement.

An RF testing method is applied between a testing instrument and multiple devices under test at least including a first DUT and a second DUT. The testing instrument includes a signal generator and a signal analyzer. A sync signal is sent to the testing instrument and the first DUT, so that the first DUT occupies the signal generator to receive a testing signal from the signal generator. The first DUT sends an uplink signal to the signal analyzer based on the testing signal to occupy the signal analyzer for signal analysis at a first point in time. The sync signal is sent to the testing instrument and the second DUT, so that the second DUT occupies the signal generator to receive the testing signal from the signal generator at a second point in time. The first point in time is parallel to the second point in time.

The present application relates to the technical field of communication test, especially to a kind of smartphone communication radio frequency test method, device and storage medium, the method comprises: extracting interference pulse feature based on the time domain voltage waveform in monitoring period;Sensitivity offset model is constructed based on the interference pulse feature of time domain voltage waveform in monitoring period, and sensitivity offset sequence is output;Real-time power transmission parameters in wireless charging process are collected, and dynamic interference state is determined, and then according to dynamic interference state and sensitivity offset sequence, comprehensive interference index in monitoring period is generated, and comprehensive interference state is output;According to the vector amplitude error of demodulation reference signal in monitoring period, the anti-dynamic interference performance of smartphone is marked.The present application effectively improves the efficiency of smartphone communication radio frequency test.

The invention relates to an equipment testing method, an equipment testing device, electronic equipment and a storage medium. The device testing method comprises the steps of determining a to-be-tested device type of a to-be-tested device in response to a received device testing instruction; and determining a first target test parameter corresponding to the type of the to-be-tested device according to the corresponding relationship between the device type and the test parameter. And under the condition that the test parameter is the first target test parameter, performing a radio frequency test on the to-be-tested device, and generating a test result, the radio frequency test comprising a test item realized by automatically adjusting a test level, and the test level comprising an initial test level and a test level change value. According to the invention, the equipment testing method for the terminal equipment with the satellite communication capability is provided, and the efficiency and accuracy of equipment testing can be improved.

The present invention relates to the technical field of microwave radio frequency test. Disclosed are a tip structure for suppressing radiation, a two-dimensional probe and a probe structure. For the problems in millimeter-wave to terahertz on-chip testing of serious high-frequency radiation leakage, difficulty in continuous matching between impedance and broadband, mutual interference between a direct-current bias path and a radio frequency channel, poor balance of differential measurement, and the like, a cantilever shielding layer is introduced into a tip structure to construct a quasi-TEM transmission environment, thereby suppressing high-frequency radiation at source; a rectangular micro-coaxial structure, a rectangular waveguide-to-circular coaxial conversion structure, and an integrated direct-current bias network that are realized in light of additive manufacturing improve impedance continuity and structural consistency in a high-frequency band; and on this basis, a dual-band two-dimensional probe integrated with a duplexer, a differential two-dimensional probe suitable for differential measurement and a closed probe are further provided, so that a test system realizes single-ended and differential on-chip testing having high isolation, high repeatability and high precision in an ultra-wide frequency range.

1. The name of the design product: Bluetooth tester. 2. The use of the design product: The design product is used for a Bluetooth tester to conduct BR / EDR LE radio frequency test and signal source test. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view.

The application relates to the field of chip testing, in particular to a radio frequency test machine calibration method, a radio frequency test machine and a radio frequency test system. The method comprises the following steps: based on configured first radio frequency test signals, acquiring first power detection values of an external power detection circuit and second power detection values of an internal power detection circuit; based on the first power detection values and the second power detection values, determining calibration values of the internal power detection circuit for the first radio frequency test signals; based on a second radio frequency test signal, determining a target calibration value in the calibration values, and acquiring a third power detection value of the internal power detection circuit; and based on the target calibration value and the third power detection value, adjusting hardware parameters of the radio frequency front-end circuit. The application improves the calibration efficiency of the radio frequency test machine.

This utility model discloses a radio frequency (RF) testing device with convenient heat dissipation, relating to the field of RF testing technology. The utility model includes a base plate, side plates symmetrically fixedly mounted on the upper surface of the base plate, a carrier plate slidably connected to the upper surface of the side plates, a back plate fixedly connected to one side of the upper surface of the base plate, a lifting plate slidably mounted on one side of the back plate, a pressure head fixedly connected to one side of the lifting plate, a needle plate fixedly connected to the lower surface of the pressure head, a heat dissipation device fixedly connected to the lower surface of the base plate, a connecting plate fixedly connected to one side of the lower surface of the carrier plate, and a second cylinder fixedly mounted on one side of the upper surface of the base plate. The output end of the second cylinder is fixedly connected to the connecting plate. This utility model, through the practical application of a movable carrier plate, pressure head, and heat dissipation device, achieves improved testing efficiency and convenient heat dissipation.

The invention discloses a four-channel calibration suite for a radio frequency test fixture, which adopts a TRL calibration algorithm, can realize vector calibration of a radio frequency port of a tile-type TR assembly radio frequency test fixture, and can realize multi-port vector calibration by integrating a solid-state radio frequency switch in the calibration suite. The radio frequency test fixture four-channel calibration suite can satisfy radio frequency performance index verification of the tile-type TR assembly, guarantees batch production test of the tile-type TR assembly, and satisfies the requirement of mass production.

The application discloses an optical device testing method and relates to the technical field of optical devices. According to the application, a direct current testing board and a radio frequency testing board are arranged according to testing functions, the direct current testing board is provided with a direct current testing circuit, the radio frequency testing board is provided with a high-frequency terminal, a driving chip and an interface for connecting with an optical device, the high-frequency terminal is used for connecting with testing equipment, the high-frequency terminal and the interface are electrically connected with the driving chip, the radio frequency testing board is further provided with a direct current board interface, the direct current board interface is used for detachably connecting with the direct current testing board, and the direct current testing board is electrically connected with the radio frequency testing board when the direct current testing board is connected with the radio frequency testing board through the direct current board interface. The direct current testing board and the radio frequency testing board are detachably connected, so that different direct current testing boards and different radio frequency testing boards can be combined at will to reduce the cost.

1. Name of the product in this design: Rack-mounted RF tester. 2. Purpose of this design: This design is an industrial equipment for testing radio frequency communication systems. It is mainly used in wireless communication, electronic research and development, electromagnetic compatibility testing and other fields. Its core functions include signal analysis, equipment debugging and performance evaluation. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: a 3D model.

This invention discloses a five-axis radio frequency probe insertion device, including a base, an imaging device on one side of the base, and a radio frequency probe above the imaging device; a probe adjustment mechanism is provided between the radio frequency probe and the base, the probe adjustment mechanism including: an adjustment plate constructed with the optical axis of the imaging device as a reference, the adjustment plate having circular holes corresponding to the optical axis; this invention belongs to the field of radio frequency testing technology, and the technical effect achieved is: integrating three-axis translation, rotation around the optical axis, radial eccentricity adjustment and end-point pitch adjustment on the same central reference, constructing a five-axis linkage adjustment system; three-axis coarse adjustment achieves macroscopic positioning, the rotation layer and the radial layer constitute a polar coordinate adjustment system, accurately guiding the probe to any coordinate point within the field of view, and the angle fine adjustment layer independently corrects the probe contact posture.

An RF testing method for testing a plurality of devices under test (DUT) employs a virtual testing instrument having a plurality of testing interfaces. The testing method comprises the steps of: determining, by the testing instrument, an expected interference behaviour between the first and second DUT based on the notified first and second configuration; prioritizing, by the testing instrument, a testing procedure for the first DUT and for the second DUT according to predefined priority criteria; and generating RF test signals for testing the first and second DUT on the basis of as well the prioritizing of the testing procedure and the determined interference behaviour.Summarizing, both the virtualisation of testing instruments by employing a MUTEX mechanism and at the same time an interference avoiding mechanism is realised at the same time. The present invention further relates to an RF testing instrument for testing a plurality of devices under test.

This utility model discloses an integrated radio frequency shielding tester with a display screen, comprising a test box assembly; a shielding box assembly fixedly disposed above the test box assembly; the test box assembly includes a test chamber, and the shielding box assembly is fixedly disposed above the test chamber; a test circuit board and a cooling fan are respectively fixedly disposed in the test chamber and electrically connected thereto; multiple antennas are respectively fixedly and electrically connected to the test circuit board and respectively pass through the shielding box assembly; a display screen is fixedly disposed through the front end of the test chamber and electrically connected to the test circuit board; an air inlet valve is fixedly disposed through the outside of the test chamber; and multiple air pipe interfaces are respectively connected to the air inlet valve and respectively fixedly disposed through the shielding box assembly. This utility model effectively solves the problem that existing shielded radio frequency test devices do not have a display function.

A cell site test tool provides field technicians with resources to support multiple aspects of cell site testing. The cell site test tool includes multiple, integrated and removably connectable modules such as a base module, a user interface module, and a battery module. Additional modules include a CPRI module to provide Common Public Radio Interface testing, an OTDR module to provide dedicated Optical Time-Domain Reflectometer testing, a CAA module to provide Cable Antenna Analysis testing, a fiber inspection module to visually inspect optical fiber, and an SA / CPRI module to provide Radio Frequency over Common Public Radio Interface testing.

The invention discloses an external bias device for a low-temperature probe and further discloses a de-embedding calibration measurement method of the external bias device for the low-temperature probe, the external bias device comprises a radio frequency test instrument, an external bias unit, a bias feed network and a low-temperature magnetic resonance probe, the external bias unit is used for providing direct-current bias voltage, and the bias feed network is used for providing direct-current bias voltage; the radio frequency test instrument is used for generating a test signal in the low-temperature magnetic resonance probe, and a direct-current bias signal output by the external bias unit forces the PIN diode to be converted from a high-resistance isolation state to a low-resistance conduction state; then the radio frequency testing instrument is started, milliwatt-level signals generated by the radio frequency testing instrument can easily reach the radio frequency coil through the passive T / R switch, so that the radio frequency coil is tested, the passive T / R switch is switched on under the conditions that the packaging structure of the low-temperature magnetic resonance probe is not damaged and an internal circuit is not changed, and the low-temperature magnetic resonance probe is tested. Therefore, a radio frequency test channel is established.

The utility model discloses a simple radio frequency test platform, and belongs to the technical field of medical treatment. A simple radio frequency test platform comprises a power supply and a test device, the test device is connected with the power supply, and the test device is used for measuring the stability of a radio frequency signal at the emission position of a radio frequency amplifier; a connector and a first conducting rod are arranged in the radio frequency amplifier, and the first conducting rod is located in the connector; the device further comprises a connecting piece, a second conducting rod, a connecting wire and a power-off protection mechanism. The connecting piece is connected with the connector, the second conducting rod is inserted into the connecting piece, and the second conducting rod is connected with the testing device through the connecting line. The simple radio frequency test platform provided by the utility model can quickly separate the test device from the radio frequency amplifier when an abnormal phenomenon occurs in a test process, thereby avoiding continuous damage to the radio frequency amplifier and the test device.

This invention discloses an automated method and related equipment for testing the radiation pattern of a spaceborne SAR phased array antenna, relating to the field of spaceborne SAR active phased array antenna testing technology. The method includes: receiving a position signal from the scanning probe control system; generating a corresponding radio frequency (RF) test excitation signal based on the scanning probe's position signal; controlling the RF test excitation signal to be output via the calibration port or microwave combination port of the SAR central processing unit, and simultaneously controlling the operating state of the spaceborne SAR phased array antenna to transmit or receive mode, thereby forming a self-closed-loop test link between the scanning probe and the spaceborne SAR phased array antenna; acquiring amplitude and phase data of the spaceborne SAR phased array antenna at multiple wavelengths through the self-closed-loop test link; and processing the amplitude and phase data to generate the radiation pattern of the spaceborne SAR phased array antenna. This invention can efficiently generate high-quality radiation patterns.

A circuit that features the following: an input circuit node for receiving an RF oscillator signal (s LO (t)); a first IQ modulator (111a) designed to generate a first RF signal ( SRF1 (t)) to generate by the RF oscillator signal (s LO (t)) is modulated with a first signal (s1(t)); a second IQ modulator (111b) designed to generate a second RF signal (s RF2 (t)) to generate by the RF oscillator signal (s LO (t)) is modulated with a second signal (s2(t)), where the first signal (s1(t)) and the second signal (s2(t)) are each complex-valued signals, each modulated by an in-phase signal component (s 1I (t), s 2I (t)) and a quadrature signal component (s 1Q (t), s 2Q (t)) are represented; and an RF combiner circuit (114) designed to generate an RF test signal (s RFTEST(t)) by combining the first RF signal ( SRF1 (t)) and the second RF signal (s RF2 (t)) to generate.