WO2023058923A1 - Dispositif de mesure de pim à fente étendue et procédé de mesure automatique de pim l'utilisant - Google Patents

Dispositif de mesure de pim à fente étendue et procédé de mesure automatique de pim l'utilisant Download PDF

Info

Publication number
WO2023058923A1
WO2023058923A1 PCT/KR2022/013657 KR2022013657W WO2023058923A1 WO 2023058923 A1 WO2023058923 A1 WO 2023058923A1 KR 2022013657 W KR2022013657 W KR 2022013657W WO 2023058923 A1 WO2023058923 A1 WO 2023058923A1
Authority
WO
WIPO (PCT)
Prior art keywords
measurement
unit
signal
pim
antenna
Prior art date
Application number
PCT/KR2022/013657
Other languages
English (en)
Korean (ko)
Inventor
서수덕
한을봉
정종휘
Original Assignee
주식회사 이너트론
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 주식회사 이너트론 filed Critical 주식회사 이너트론
Publication of WO2023058923A1 publication Critical patent/WO2023058923A1/fr

Links

Images

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R29/00—Arrangements for measuring or indicating electric quantities not covered by groups G01R19/00 - G01R27/00
    • G01R29/06—Measuring depth of modulation
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R23/00—Arrangements for measuring frequencies; Arrangements for analysing frequency spectra
    • G01R23/16—Spectrum analysis; Fourier analysis
    • G01R23/165—Spectrum analysis; Fourier analysis using filters
    • G01R23/167—Spectrum analysis; Fourier analysis using filters with digital filters
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
    • G08B21/18—Status alarms
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
    • G08B21/18—Status alarms
    • G08B21/182—Level alarms, e.g. alarms responsive to variables exceeding a threshold

Definitions

  • the present invention relates to an apparatus and method for measuring passive intermodulation (PIM) of an RF component for mobile communication, and more particularly, to a slot expansion type PIM measuring apparatus formed of a chassis and a unit and capable of automatically measuring PIM in multiple bands, and the same. It relates to a PIM automatic measurement method using
  • PIM Passive Intermodulation
  • passive components that are thought to be linear, such as loose or corroded connectors, cables, duplexers, and antennas.
  • any corrosion or other nonlinear effect can create PIM components that cause desensitization or blockage in the reception band, and these intermodulated signals are transmitted later in the signal path.
  • frequencies such as 3.5GHz Band, 4.5GHz Band, and 28GHz Band are widely distributed, and services are provided simultaneously with existing networks (3rd and 4th generations), and multi-band filters and multi-band antennas are used for simultaneous service. are using Since the possibility of generating PIM signals increases due to the use of such multi-band products, it is necessary to prevent product defects in advance by continuously measuring PIM from development to production and shipment of mobile communication products.
  • “Expandable PIM analyzer” published as registration number 10-1148192 in the Korean Intellectual Property Office Registered Patent Publication can individually control a plurality of sub-racks connected to one main rack by band selection, so that several bands of bands When measuring a band, one main rack and a sub rack of the required band are purchased so that the overall cost is reduced.
  • the prior art scalable passive intermodulation distortion (PIM) analyzer requires a main rack and a plurality of sub racks to measure multi-band, and to measure PIM for each distinct band through a band selector.
  • PIM passive intermodulation distortion
  • the present invention has been proposed to solve the above problems, and the problem to be solved by the present invention is to easily expand the measurement band as needed to mix a plurality of mixed bands such as 3G, 4G, and 5G (generation) in various ways It is to provide a slot expansion type PIM measurement device capable of automatically measuring multi-band PIM by configuring and an automatic PIM measurement method using the same.
  • An embodiment of the present invention discloses a slot-extended PIM measurement device.
  • the disclosed PIM measurement device includes a plurality of RF units generating and transmitting a transmission RF signal of a predetermined band for PIM measurement according to a control signal to an antenna side and receiving the RF signal for PIM measurement from the antenna side, and transmitting the RF unit.
  • a coupling unit that combines RF signals and transmits them to the connection port of the antenna to be measured, receives the RF signal reflected from the antenna to be measured through the connection port and transmits the RF signal to the corresponding RF unit, and receives it from the RF unit according to the control signal
  • a receiving switch unit selects and amplifies the received RF signal of each band, and generates a reference RF signal and provides it to the plurality of RF units, respectively, and the plurality of RF units and the receiving switch unit according to the measurement program transmitted from the host terminal and a main unit controlling a switch unit to perform a PIM measurement procedure, down-converting the received RF signal received from the receiving switch unit, converting it to digital, performing FFT analysis, and transmitting the PIM measurement result to the host terminal.
  • the slot-extended PIM measuring apparatus may further include a tilt control unit for remotely controlling a tilt angle of an antenna to be measured, if necessary, and the RF unit generates an RF signal of a first frequency synchronized with the reference RF signal.
  • a tilt control unit for remotely controlling a tilt angle of an antenna to be measured, if necessary, and the RF unit generates an RF signal of a first frequency synchronized with the reference RF signal.
  • a first RF signal generator for generating, a first high power amplifier for amplifying an output of the first RF signal generator to a predetermined level, and a second RF signal for generating an RF signal of a second frequency synchronized with the reference RF signal.
  • a generator for amplifying the output of the second RF signal generator to a predetermined level, a combiner for combining the output of the first high power amplifier and the output of the second high power amplifier, and an output of the combiner to the antenna side, and a multiplexer for transmitting the RF signal received from the antenna side to the receiving switch unit side.
  • the main unit includes a synchronization module for oscillating a reference signal of a predetermined frequency and providing it to each RF unit, down-converting the RF signal received from the receiving switch unit, converting it to digital, and measuring the PIM signal through FFT analysis. module and a main interface module for processing the entire measurement procedure by controlling each unit through an external control bus while communicating with the host terminal through the communication port to receive and execute a predetermined measurement program.
  • Another embodiment of the present invention discloses an automatic PIM measurement method using a slot expansion type PIM measurement device.
  • the PIM automatic measurement method of another disclosed embodiment connects the host terminal to the main unit, connects the measurement target antenna to the antenna port of the coupling unit, and tests the transmission frequency and level for multi-band PIM measurement on the GUI screen of the host terminal step by step. and, when measurement starts after the setting is completed, checking whether automatic measurement is performed and, if automatic, adding the set value for measurement to the queue, and checking whether or not the tilt control is performed after taking the set value out of the queue to control the tilt.
  • the main unit performs the corresponding Controlling the corresponding RF unit to adjust the transmission frequency and output of the RF unit, setting the receiving frequency and band of the receiving switch unit to measure, checking the measurement time counter, and if within the time limit, the main unit sends the FFT data to the host Transmission to the terminal, displaying on the GUI screen, continuing measurement if no alarm occurs, and, if an alarm occurs, pauses the measurement, turns off the transmission output, and turns off the alarm state Check again to continue measurement when the alarm is turned off, and check the measurement time counter to terminate measurement if the alarm state continues even after the time limit has elapsed or the transmission output is turned off.
  • the PIM measuring device can easily measure multi-band PIM by easily expanding the measurement band as needed and configuring a plurality of mixed bands such as 3G, 4G, and 5G (generation) in various ways. There is an effect. That is, since antennas of actual base stations are installed in an environment in which different service frequency bands are mixed according to generations, services, and communication operators such as 3G, 4G, and 5G, measurement is difficult in the conventional method, but according to an embodiment of the present invention Since various mixed bands can be configured using the slot expansion method, PIM can be accurately measured even when multiple frequency bands are mixed.
  • cost and space can be saved because a plurality of measurement bands can be simply configured in a single rack type, and PIM can be automatically operated in all processes from development to production and shipment of mobile communication products. It is possible to reduce the measurement time by measuring it with , and it has the effect of preventing defects of mobile communication products in advance.
  • FIG. 1 is a schematic diagram showing an example of unit arrangement of a slot expansion type PIM measuring device according to an embodiment of the present invention
  • FIG. 2 is a block diagram of the overall configuration of a slot-extended PIM measuring device according to an embodiment of the present invention
  • FIG. 3 is a block diagram showing an example of a multiplex type RF unit shown in FIG. 2;
  • FIG. 4 is a block diagram showing an example of the simplex type RF unit shown in FIG. 2;
  • FIG. 5 is a block diagram of the reception switch unit shown in FIG. 2;
  • FIG. 6 is a block diagram of the main unit shown in FIG. 2;
  • FIG. 7 is a block diagram of the power supply unit shown in FIG. 2;
  • FIGS. 8 and 9 are flowcharts illustrating an automatic PIM measurement procedure according to an embodiment of the present invention.
  • GUI 10 is an example of a GUI screen when automatically measuring PIM according to an embodiment of the present invention.
  • Nonlinearities of general RF passive components include contact nonlinearity that occurs at the metal contact point of a connector, such as tunneling effect, microdischarge, and contact resistance, and magnetic resistance, thermal resistance, and nonlinear hysteresis of transmission lines. There is Material Nonlinearity.
  • the PIM signal of the 2-port RF passive component proceeds with the same magnitude in both input and output directions. Therefore, the measurement of the PIM level of the device under test (DUT) can be divided into a reflect method and a forward method for measuring a transmitted intermodulation signal. In the embodiment of the present invention, the reflect method is mainly used. will mainly be explained.
  • the measurement target antenna (DUT) used in the embodiment of the present invention may be various types of mobile communication antennas used in normal base stations, for example, a multi-band polarization antenna having a +45° polarization port and a -45° polarization port. , it may be an antenna having a RET (Remote Electrical Tilt) function that can remotely adjust the tilt angle.
  • RET Remote Electrical Tilt
  • FIG. 1 is a schematic diagram showing an example of unit arrangement of a slot expansion type PIM measuring device according to an embodiment of the present invention.
  • the slot expansion type PIM measuring device 100 includes a main unit 110, a receiving switch unit 120, and a tilt control unit 130 mounted in a single rack 102. , 1st to 12th RF units (140-1 to 140-12), coupling unit 150, and a plurality of power supply units (160-1 to 160-4), 12-band passive mutual communication for mobile communication Modulation (PIM) characteristics can be automatically measured.
  • 1st to 12th RF units 140-1 to 140-12
  • coupling unit 150 and a plurality of power supply units (160-1 to 160-4)
  • PIM 12-band passive mutual communication for mobile communication Modulation
  • a single rack (Rack; 102) is a 19-inch standard rack and is divided into five shelves, a coupling unit 150 is mounted on the first shelf at the bottom, and the second to fourth shelves are mounted.
  • 12 RF units (140-1 to 140-12) are mounted in a 4x3 form.
  • the main unit 110, the reception switch unit 120, and the tilt control unit 130 are mounted on the uppermost fifth shelf, and the power supply unit (P/S; 160- 1 ⁇ 160-4) are mounted one by one to supply power to the entire unit.
  • the main unit 110 is connected to the host terminal 104 used by the measurer through a wired communication port such as USB or RS232C, provides a GUI screen for PIM measurement, sets the measurement procedure, and controls each unit for automatic measurement. It processes the process, receives the received signal from the receiving switch unit 120, measures the PIM, and transmits it to the host terminal 104.
  • a wired communication port such as USB or RS232C
  • the host terminal 104 is composed of a desktop computer or the like equipped with a measurement control program, and displays a GUI screen for measurement as will be described later, manages PIM measurement results in a database, receives various setting data, and receives various setting data, and the main unit 110 ) is sent to
  • the reception switch unit 120 selects and amplifies the reception signal of each band received from the RF units 140-1 to 140-12 according to the control signal of the main unit, transmits the amplified signal to the main unit 110, 110 analyzes the PIM signal in the reception signal received from the reception switch unit 120 and transmits the measurement result data to the host terminal 104.
  • the tilt control unit 130 is connected to the measurement target antenna 106 through the RET terminal to remotely control the tilt angle of the measurement target antenna according to the AISG (Antenna Interface Standards Group) standard procedure, and the coupling unit 150 is The transmitted RF signals of the first to twelfth RF units 140-1 to 140-12 are combined and transferred to the measurement target antenna 106 through the first antenna port Port1 and the second antenna port Port2, and The received RF signal reflected from the side (106) is transferred to the corresponding RF unit (140-1 to 140-12).
  • FIG. 2 is a block diagram of the entire configuration of a slot expansion type PIM measuring device according to an embodiment of the present invention
  • FIG. 3 is a configuration block diagram showing an example of a multiplex type RF unit shown in FIG. 2
  • FIG. 4 is a block diagram of FIG. It is a configuration block diagram showing an example of a simplex type RF unit shown in .
  • 5 is a configuration block diagram of the reception switch unit shown in FIG. 2
  • FIG. 6 is a configuration block diagram of the main unit shown in FIG. 2
  • FIG. 7 is a configuration block diagram of the power supply unit shown in FIG.
  • the multi-band PIM automatic measuring device 100 includes 12 RF units 140-1 to 140-12, a coupling unit 150, and a receiving switch unit ( 120), the tilt control unit 130, and the main unit 110, the port 1 (Port1) and port 2 (Port2) of the coupling unit 150 and the remote tilt angle control terminal (RET) of the tilt control unit 130 It is possible to measure the PIM characteristics of the measurement target antenna (DUT) 106 connected to ).
  • the RF unit (140-1 ⁇ 140-12) easily expands the measurement band as needed to configure an environment in which different service frequency bands are mixed according to generation, service, and communication service provider such as 3G, 4G, and 5G. It is for measuring multi-band PIM, and a plurality of service frequency bands can be mixed and configured in various ways, but in the embodiment of the present invention, 12 frequency bands will be described as an example.
  • the RF units 140-1 to 140-12 are multiplexed to be applied to Frequency Division Duplex (FDD) and Time Division Duplex (TDD) according to the transmission method of the mobile communication network to be measured. It can be classified as a simplex type for application.
  • the multiplexed RF unit 140 includes a first RF signal generator (F1 Tunable RF OSC; 141-1) for generating an RF signal of a first frequency synchronized with a reference RF signal; A first pre-amplifier (Pre AMP) 142-1 for amplifying the output of the first RF signal generator 141-1, and a first variable attenuator (Variable ATT) 143-1 for adjusting the level according to a control signal A first high power amplifier (HPA) 144-1, a second RF signal generator (F2 Tunable RF OSC; 141-2) for generating an RF signal of a second frequency synchronized with the reference RF signal, and a second RF A second pre-amplifier (Pre AMP) 142-2 for amplifying the output of the signal generator 141-2, a second variable attenuator (Variable ATT) 143-2 for adjusting the level according to the control signal, 2 a high power amplifier (HPA; 144-2), a combiner
  • HPA high
  • the control module 148 monitors the output to measure whether the object to be measured is connected, the return loss of the object to be measured, and the output of the HPA, and monitors the local oscillator 148-1 and the transmission signal.
  • a switch 148-2 for selecting a feedback signal to do so, a mixer 148-3 for mixing the local oscillation signal and the transmission signal, a SAW filter 148-4 for selecting and passing the low-band of the mixer, Detector 148-5 for detecting the output of the SAW filter, ADC 148-6 for converting the analog output of the detector to digital, and communicating with the main unit 110 through an external control bus (Ext CTRL) and outputting It consists of a micro control unit (MCU; 148-7) to monitor whether the object to be measured is connected, return loss of the object to be measured, and HPA output.
  • MCU micro control unit
  • the simplex type RF unit 140 includes a first RF signal generator (F1 Tunable RF OSC) 141-1, a first pre-amplifier (Pre AMP) 142-1, and a first variable Attenuator (Variable ATT; 143-1), first high power amplifier (HPA; 144-1), second RF signal generator (F2 Tunable RF OSC; 141-2), second pre-amplifier (Pre AMP; 142-2) , a second variable attenuator (Variable ATT; 143-2), a second high power amplifier (HPA; 144-2), a combiner 145, a transmit bandpass filter (Tx BPF; 146), and a transmit bandpass during transmission.
  • An RF (SPDT; Single-Pole Double-Throw) switch 149 that selects the output of the filter 146 and transmits it to the antenna side, and transmits the RF signal received from the antenna side to the receiving switch unit 120 side during reception. It is composed of a control module 148 and generates a transmission RF signal of a corresponding band for PIM measurement according to a control signal, transmits it to the antenna side, and receives the RF signal for PIM measurement from the antenna side. Since the simplex type RF unit is the same as the multiplex type RF unit of FIG. 3 except for the RF switch 149, further description thereof will be omitted.
  • the first to twelfth RF units 140-1 to 140-12 may measure PIM of multi-frequency bands for 3G, 4G, and 5G mobile communication as shown in Table 1 below.
  • the transmission frequency band and the reception frequency band allocated to each of the RF units 140-1 to 140-12 are only for showing an example, and according to the frequency allocation policy of the country to which the present invention is applied,
  • the actual measurement frequency band may vary and may also vary depending on the type of antenna to be measured. For example, in the case of Korea, since the frequency assigned to each carrier is different even in each frequency band, it is possible to divide and measure the detailed frequency band for each carrier.
  • transmit/receive frequency band is the same, so assign the same frequency band to transmit/receive for testing.
  • the coupling unit 150 includes a first combining filter unit for generating a first combined signal by combining the transmitted RF signals of the first to fifth RF units 140-1 to 140-5; , a second combining filter unit for generating a second combined signal by combining the transmitted RF signals of the sixth to twelfth RF units 140-6 to 140-12, and transmitting the first combined signal to a first antenna port (Port1) , and the second combined signal is connected to the second antenna port (Port2).
  • the low frequency band and the high frequency band are connected to the first antenna port (Port1)
  • the middle frequency band and the high frequency band are connected to the second antenna port (Port2).
  • the combined signals may be combined again and connected to one antenna port, or two different combined signals may be generated by dividing the frequency band in a different way.
  • the reception switch unit 120 includes a port switch 121 for selecting a port, a plurality of reception band pass filter arrays 122, a filter switch module 123, a low noise amplifier (LNA); 124), a micro control unit (MCU) 125 for controlling the port switch 121 and the switch module 123 by communicating with the main unit 110 through an external control bus, and the RF unit 140 according to the control signal.
  • -1 to 140-12) selects and amplifies the received signal of each band and transmits it to the main unit (110).
  • the main unit 110 includes a synchronization module 111 for oscillating a 10 MHz reference signal and providing it to each RF unit 140-1 to 140-12, and a receiving switch unit 120. After down-converting the received RF signal, convert it to digital and measure the PIM signal through FFT analysis, and communicate with the host terminal 104 through the communication port to receive and execute a predetermined measurement program. It consists of a main interface module 112 for processing the entire measurement procedure by controlling each unit through an external control bus.
  • the power supply unit 160 includes a switching mode power supply unit (SMPS) 162 for receiving AC power and supplying DC power required by the circuit, and a main unit 110. It consists of a communication coupling distribution module 164 for connecting the control bus of the cell to each unit of the corresponding cell.
  • SMPS switching mode power supply unit
  • the tilt control unit 140 is for remotely controlling the tilt angle of the measurement target antenna 106 .
  • antennas used in mobile communication base stations can adjust the tilt angle of the antenna remotely through Remote Electrical Tilt (RET), and such control is performed through AISG (Antenna Interface Standards Group) master controller.
  • RET Remote Electrical Tilt
  • AISG Antenna Interface Standards Group
  • communication between the AISG master controller and RET follows the RS 485 standard.
  • This AISG standard is a standardized standard to secure interconnectivity for the tilt angle control method of an antenna, etc., and in an embodiment of the present invention, the tilt control unit 140 controls the tilt angle through RET according to the standard AISG standard Since it is a configuration, further description will be omitted.
  • FIG. 8 and 9 are flowcharts illustrating an automatic PIM measurement procedure according to an embodiment of the present invention
  • FIG. 10 is an example of a GUI screen during automatic PIM measurement according to an embodiment of the present invention.
  • the main unit 110 and the host terminal 104 are connected with a USB cable, and the antenna 106 to be measured and the antenna port are connected. and RET terminals are connected with the RF cable 108 and the 485 communication cable.
  • the transmission frequency and level for multi-band PIM measurement are set for each band.
  • the first transmission frequency (F1) and the output of the first RF unit (140-1) are set to 785.5 MHz, 10W, and the first RF unit (140-7)
  • the intermodulation (PIM) characteristics of the reflected received signal at 735.5MHz were measured.
  • the second transmission frequency F2 and output of the first RF unit 140-1 are set to 793 MHz and 10W, and the first transmission frequency of the third RF unit 140-3 After setting (F1) and output to 3470 MHz, 5 W, and the second transmit frequency (F2) and output to 3520 MHz and 5 W, respectively, measure the intermodulation (PIM) characteristics of the reflected received signal at 843 MHz, in the same way
  • PIM intermodulation
  • Each test step can be set sequentially.
  • the transmission frequency and output of each RF unit are set in advance for each test step, and then the program is transmitted to the main unit 110, thereby automating the entire measurement process so that the measurement can be performed quickly and accurately.
  • the setting value is taken out from the queue and tilt control is checked (S5, S6).
  • the tilt angle value is transmitted to the tilt control unit 130 through the main unit 110 so that the tilt control unit 130 adjusts the tilt angle of the antenna 106 to be measured, and combines for measurement Data is transmitted to the main unit 110 (S7 to S9). At this time, if there is no tilt control, combined data for measurement is immediately transmitted to the main unit 110.
  • the main unit 110 controls the corresponding RF unit to adjust the transmission frequency and output of the corresponding RF unit 140-1 to 14012 according to the combined data, sets the receiving frequency and band of the receiving switch unit 120, The PLL frequency, attenuator and table of the receiving module 113 of the main unit are set (S10, S11).
  • the measurement mode is the noise floor mode (Nise Floor)
  • the noise floor mode (Nise Floor)
  • the measurement time counter is checked, and if it is within the time limit, the FFT data of the receiver is transmitted to the host terminal 104 and displayed on the GUI screen. Do (S16 to S19).
  • the measurement is paused, the transmission output is turned off, the alarm state is checked again, and when the alarm is turned off, the measurement continues in step S4, and the measurement time counter is checked to determine whether the time limit has elapsed or transmission Even if the output is turned off, if the alarm state continues, the measurement ends (S20 to S23).
  • the host terminal 104 may display the measurement result data in the form of text, graphics, or graphs on the GUI screen, convert the measurement results into a database, and then perform statistical processing and provide the data.
  • measurement results are transmitted in real time at every measurement step (test step) and displayed on the GUI screen in real time, but measurement results may be collectively transmitted after measurement is completed.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Mathematical Physics (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Monitoring And Testing Of Transmission In General (AREA)

Abstract

Un mode de réalisation de la présente invention concerne un dispositif de mesure de PIM à fente étendue et un procédé de mesure automatique de PIM l'utilisant. Le dispositif de mesure de PIM divulgué comprend : une pluralité d'unités RF (140-1 à 140-12) qui génèrent des signaux RF d'émission ayant des bandes prédéterminées pour une mesure de PIM en fonction d'un signal de commande afin de les émettre vers des antennes, et qui reçoivent des signaux RF pour une mesure de PIM provenant des antennes ; une unité de couplage (150) qui combine les signaux RF d'émission des unités RF afin de les transmettre au port de connexion d'une antenne à mesurer, et qui reçoit, par l'intermédiaire du port de connexion, un signal RF réfléchi par l'antenne à mesurer, de manière à le transmettre à une unité RF correspondante ; une unité de commutation de réception (120) qui sélectionne et amplifie, en fonction du signal de commande, les signaux RF de réception ayant les bandes respectives, reçues en provenance des unités RF ; et une unité principale (110) qui génère un signal RF de référence afin de le fournir à chacune de la pluralité d'unités RF, commande la pluralité d'unités RF et l'unité de commutation de réception de manière à effectuer une procédure de mesure de PIM en fonction d'un programme de mesure transmis à partir d'un terminal hôte, convertit à la baisse les signaux RF de réception reçus en provenance de l'unité de commutation de réception et les convertit en signaux numériques, et effectue une analyse FFT sur ceux-ci afin de transmettre des résultats de mesure de PIM au terminal hôte.
PCT/KR2022/013657 2021-10-07 2022-09-13 Dispositif de mesure de pim à fente étendue et procédé de mesure automatique de pim l'utilisant WO2023058923A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2021-0132865 2021-10-07
KR1020210132865A KR102664542B1 (ko) 2021-10-07 2021-10-07 슬롯 확장형 pim 측정 장치 및 이를 이용한 pim 자동 측정 방법

Publications (1)

Publication Number Publication Date
WO2023058923A1 true WO2023058923A1 (fr) 2023-04-13

Family

ID=85804415

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2022/013657 WO2023058923A1 (fr) 2021-10-07 2022-09-13 Dispositif de mesure de pim à fente étendue et procédé de mesure automatique de pim l'utilisant

Country Status (2)

Country Link
KR (1) KR102664542B1 (fr)
WO (1) WO2023058923A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100820165B1 (ko) * 2006-12-13 2008-04-07 유파인테크놀러지스 주식회사 Ｐｉｍ 신호 감시시스템 및 그를 이용한 ｐｉｍ 신호감시방법
KR101148192B1 (ko) * 2011-01-12 2012-05-24 에이스웨이브텍(주) 확장가능한 피아이엠 분석장치
KR101632276B1 (ko) * 2015-02-17 2016-06-21 주식회사 감마누 Pim 자동 측정장치
KR20170007751A (ko) * 2014-05-15 2017-01-20 로젠버거 호흐프리쿠벤츠테흐닉 게엠베하 운트 코. 카게 상호 변조 측정을 위한 방법 및 측정 장치
KR20180054337A (ko) * 2016-11-15 2018-05-24 한국전자통신연구원 수동상호변조왜곡 신호 측정 장치 및 방법

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101466949B1 (ko) 2013-11-08 2014-12-03 주식회사 이너트론 다중 대역의 pim 측정 장치 및 측정 방법
US9863987B2 (en) 2015-11-03 2018-01-09 Commscope Italy S.R.L. Apparatus and methods for dynamic passive intermodulation distortion testing
KR101937450B1 (ko) 2017-02-01 2019-01-11 주식회사 이너트론 모듈화된 pim 분석 장치 및 방법
CN113711061A (zh) 2019-03-11 2021-11-26 凯镭思有限公司 用于定位相控阵天线中的pim故障的方法和系统

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100820165B1 (ko) * 2006-12-13 2008-04-07 유파인테크놀러지스 주식회사 Ｐｉｍ 신호 감시시스템 및 그를 이용한 ｐｉｍ 신호감시방법
KR101148192B1 (ko) * 2011-01-12 2012-05-24 에이스웨이브텍(주) 확장가능한 피아이엠 분석장치
KR20170007751A (ko) * 2014-05-15 2017-01-20 로젠버거 호흐프리쿠벤츠테흐닉 게엠베하 운트 코. 카게 상호 변조 측정을 위한 방법 및 측정 장치
KR101632276B1 (ko) * 2015-02-17 2016-06-21 주식회사 감마누 Pim 자동 측정장치
KR20180054337A (ko) * 2016-11-15 2018-05-24 한국전자통신연구원 수동상호변조왜곡 신호 측정 장치 및 방법

Also Published As

Publication number Publication date
KR20230049862A (ko) 2023-04-14
KR102664542B1 (ko) 2024-05-09

Similar Documents

Publication Publication Date Title
US8498582B1 (en) Optimized multi frequency PIM tester topology
CN104967494B (zh) 一种测试方法、设备和系统
US20120123723A1 (en) Methods for mitigating interactions among wireless devices in a wireless test system
MX2012004533A (es) Sistema y metodo para probar multiples transmisores-receptores de señal digital en paralelo.
JPH1117630A (ja) アンテナ異常検出機能付送受信機
CN103888970A (zh) 一种测试设备
WO2023058923A1 (fr) Dispositif de mesure de pim à fente étendue et procédé de mesure automatique de pim l'utilisant
WO2024075881A1 (fr) Appareil de mesure pim extensible par fente
KR100531619B1 (ko) 수신전용 패스를 포함하는 통신 시스템의 수신감도를측정하는 장치 및 방법
CN210328001U (zh) 一种测试装置
EP0890279B1 (fr) Procede de mesure de l'intermodulation
WO2014137132A1 (fr) Dispositif de partage d'antennes pour systèmes de nœud d'accès sans fil dans un réseau de communication sans fil
CN114584158B (zh) 一种5g nr移频双路的mimo功率自平衡系统
US12088364B2 (en) Wireless communication apparatus, antenna detection method and user device
KR101297577B1 (ko) Ｒｆ 성능 테스트용 스위칭 장치
KR100374024B1 (ko) 다중 주파수 할당을 사용하는 이동통신시스템의 기지국 시험장치
US7532863B2 (en) Broadband wireless ad-hoc modem and network testbed
CN218772103U (zh) 传导杂散测试系统
CN211656153U (zh) 用于进行多通道干扰测试的连接器组件
CN114124249B (zh) 一种测试系统
WO2015111807A1 (fr) Dispositif de test pour un équipement de communication sans fil
CN116298555B (zh) 一种宽频段天线测试系统及其使用方法
CN218920419U (zh) 一种芯片化半双工变频收发信道
CN214708076U (zh) 一种5g射频测试接口箱
CN219893455U (zh) 一种用于卫星地面移动终端测试的射频接口箱

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 22878744

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 22878744

Country of ref document: EP

Kind code of ref document: A1