News
Types and uses of commonly used radio frequen cyand microwave measuring instruments Apr 07, 2014

    RF Coaxial connectors are widely used in microwave instruments,For example: Wireless Comprehensive Tester,Signal and spectrum analyzer,EMI receiver,Network Analyzer,Oscilloscope,Signal generator,Power meter,Low frequency measuring instrument,DC power supply,ect.

    Wireless Comprehensive Tester

   The wireless comprehensive tester is a radio frequency and protocol performance test equipment for mobile communication terminals. It has the following test functions:

   Mobile RF performance and throughput test

   Vehicle eCall and ERA-GLONASS system testing

   VoLTE and VoWLAN voice test

   Mobile A-GNSS test

   POLQA and PESQ voice quality test

   IP multimedia service test

   Video performance test

   IP connection security test

   Signal and spectrum analyzer

   Signal and spectrum analyzers are instruments and equipment for spectrum analysis and demodulation analysis of input signals. There are the following types:

   Professional top-level spectrum analyzer, but also top-level ultra-wideband broadband signal analyzer, with the best performance indicators

   General-purpose spectrum analyzer, also a general-purpose signal analyzer

   Economical spectrum analyzer, usually with basic spectrum analysis function

   Handheld spectrum analyzer, suitable for field test

   The basic function of the spectrum analyzer is spectrum analysis, which depicts the power spectrum of the signal in the frequency domain. Another important function is the I/Q vector analysis of signal modulation. The top-level spectrum analyzer has the following functions:

   The frequency range of the high-end spectrum analyzer host is DC~90GHz, which can be extended by external mixing for millimeter wave/THz testing

   Spectrum test

   Harmonic spurious test

   Signal level statistical test

   Channel power/adjacent channel power test

   Noise power test

   Intermodulation test

   Real-time spectrum analysis

   Radar signal analysis

   I/Q signal analysis

   Analog modem analysis

   Digital/vector signal demodulation analysis

   Group delay measurement

   Power amplifier measurement analysis (distortion, frequency response, group delay)

   Noise power ratio NPR measurement

   Phase noise measurement

   EMI test

   Frequency hopping/transient analysis

   Bit error rate test

   2G/3G/4G/5G all standard communication signal analysis

   Aviation navigation signal analysis

   In this category of instruments, there are some special instruments for specific test items:

   Measurement receiver: a measurement-grade instrument, specially used to measure signal sources or attenuators; built-in integrated power meter, receiver, audio analyzer, modulation analyzer and frequency meter, and optional spectrum analyzer and phase noise analyzer.

   Phase noise analyzer and VCO tester: high-sensitivity phase noise measurement instrument and VCO characteristic tester; in the signal phase noise measurement, vector demodulation method or PLL method is adopted, and cross-correlation is optional, which has the highest sensitivity and far Better than the phase noise measurement sensitivity of the spectrum analyzer; built-in multiple DC power supplies, provide VCO power and tuning voltage, and automatically test various characteristic parameters of the VCO.

   EMI receiver

   The EMI receiver is a special receiver for electromagnetic compatibility interference test standards. Its main purpose is to measure and evaluate the interference emission degree of the device under test according to the electromagnetic compatibility standard.

   Types of EMI receivers:

   Certified top EMI receiver, indicators far exceed the requirements of various EMC standards

   Certified general EMI receiver, the index meets the requirements of military and civil EMC standards

   Pre-certified EMI receiver, the indicators basically meet the requirements of military and civil EMC standards, usually pulses with repetition frequencies below 10Hz do not meet the requirements of civil standards

   Network Analyzer

   The "network" of network analysis refers to radio frequency circuits and radio frequency signal channels, including radio frequency and microwave circuits, composed of signal channels and components, including various circuit components, and should not be confused with IT networks and power networks.

   The basic function is circuit parameter analysis, analysis of S parameters (scattering parameters), analysis of signal (electromagnetic wave) transmission and reflection parameters in the network, commonly used parameter formats: amplitude (loss, gain, standing wave...), phase, delay, impedance .

   Network analyzers are divided into two types: vector and scalar. Vector-network parameters that contain all information such as amplitude and phase, and scalar-does not contain information such as phase and delay.

   Features of high-end vector network analyzer:

   High-precision vector S-parameter measurement (gain, insertion loss, standing wave, phase, delay...)

   Optional spectrum analyzer optional built-in spectrum analyzer function

   Time domain measurement

   Frequency conversion vector measurement

   Coherent signal generation and adjustment

   Variable frequency group delay test

   Antenna test

   Built-in pulse source and modulator for pulse test

   True differential test

   Noise figure measurement

   De-embedding calibration

   External control expansion module for THz measurement

   Oscilloscope

   An oscilloscope is a device that analyzes signal waveforms in the time domain. ADC level resolution and test bandwidth are the main parameters that distinguish the grade level of the oscilloscope.

   Professional top oscilloscope: the maximum bandwidth exceeds 6GHz

   Professional oscilloscope: maximum bandwidth up to 6GHz

   General purpose oscilloscope: maximum bandwidth up to 1GHz

   Economical oscilloscope: bandwidth < 500MHz

   Handheld oscilloscope

   Its application range is very wide:

   Signal waveform analysis

   Signal integrity analysis

   Multi-channel amplitude and phase measurement

   Multi-channel FFT spectrum analysis

   Bus protocol analysis

   Jitter analysis

   Time domain reflectance TDR measurement

   Signal generator

   A signal generator is also called a signal source, which is an instrument and equipment that generates radio frequency microwave signals and various modulated signals.

   Analog signal source: can generate analog modulation signal

   Modulation: AM/FM/PM and pulse modulation

   Top microwave analog source: ultra-low phase noise and noise

   Universal analog source

   Vector signal source: can generate vector and digital modulation signals

   Top microwave vector source

   Frequency up to 44GHz, modulation bandwidth up to 2GHz

   Ultra low phase noise

   Various types of mobile communication signals that can generate 3Gpp specifications

   Generate and simulate GNSS navigation

   Can fading and noise simulation

   Generate and simulate radars and targets

   Generate and configure MIMO signals

   Universal vector source

   Frequency up to 6GHz, modulation bandwidth up to 500MHz

   Economical vector source

   Frequency up to 7.5GHz, modulation bandwidth up to 240MHz

   Power meter

   The power meter is the standard equipment for radio frequency signal power measurement. The power meter cannot distinguish the signal frequency and measure the total power within the working bandwidth.

   The core equipment of the power meter is a power sensor, also called a power probe or a power base. Modern power sensors are integrated with measurement and data processing devices. The host of the power meter is not necessary. It can be directly connected to computers, mobile phones, instruments, etc. to complete power measurement .

   Power sensor classification:

   The pyroelectric sensor has the highest accuracy, the frequency range can reach 110GHz, and the dynamic range is low, usually -50~+20dBm

   General sensor, usually multi-channel diode technology, frequency range up to 67GHz, high dynamic range, usually -70~+20dBm

   Broadband sensor, usually used to measure the peak value and average power of narrow pulse signals, as well as pulse width, rising and falling edge time and period, etc.

   Low frequency measuring instrument

   Multi-function tester:

   Measurement: voltage, current, resistance, capacitance

   LCR tester

   Impedance measurement: resistance, capacitance, inductance

   DC power supply

   Function of DC power supply:

   The basic function is to provide a stable and pure DC power supply

   Set voltage source or current source

   Power analysis measurement function, monitor output voltage and current

   High-speed analysis, acquisition and recording of output voltage, current, and power changes

   Output voltage waveform editing

   Load change fast recovery function

   Pulse power setting

   Performance of DC power supply:

   Power output ripple and noise

   Output voltage range and power range

Categories
Any question? Contact us now !

Leave A Message

Leave A Message
If you have questions or suggestions,please leave us a message,we will reply you as soon as we can!

Home

Products

skype

whatsapp