Network Analyzer Application Areas Network Analyzer Selection Guide

Network analyzer is a comprehensive microwave measurement instrument that can perform scanning measurements in a wide frequency band to determine network parameters. It can perform S parameter measurement, Polar polar coordinate diagram, Smith Smith diagram, etc. The network analyzer is a new instrument for measuring network parameters. It can directly measure active or passive, reversible or irreversible dual-port and single-port networks. Complex scattering parameters, and the amplitude, phase and frequency characteristics of each scattering parameter are given in a frequency sweep mode.

Network analyzer application areas:

Measurement application areas: amplifiers, coaxial cables, power dividers, combiners, antennas, couplers, filters, isolators, branch distributors, crystals, sound meters, etc.;

Measurable parameters: insertion loss, attenuation, isolation, gain, frequency response, in-band flatness, phase, group delay, return loss, SWR, characteristic impedance, 3dB bandwidth, out-of-band suppression, stopband bandwidth, rectangularity coefficient, etc. .

Antai test technical engineers recommend that you should pay attention to the following indicators when selecting a network analyzer:

1. Frequency range: Provides the frequency range for excitation continuous wave (CW) signals and receiver measurements to measure the amplitude and phase response of radio frequency (RF) and microwave devices, systems and subsystems in design and manufacturing applications.

2. Number of ports: Provides two-port or four-port network analysis. Instrument ports are typically Type N female connectors. Two-port analysis such as antenna matching and adjustment, filter measurement, amplifier measurement, radio frequency (RF) cable and connector measurement; when measuring multi-port DUTs or high-rejection duplexers, couplers, power splitters, For mixers and isolators, a four-port network analyzer can be used to connect the instrument and the device under test in a single connection for full parameter testing, which is more efficient.

3. Output power: meets the excitation signal power provided by common component testing.

4. Dynamic range: refers to the difference between the maximum input power allowed by the network analyzer and the minimum measurable power (noise floor). For the measurement to be correct and valid, the input signal must be within this range. If the signal amplitude that needs to be measured varies greatly, such as filter passband and stopband testing, sufficient dynamic range must be added.

5. Commonly used accessories: calibration kits, test cables, coaxial lines, etc.