Vector Network Analyzer | Precision Testing for RF & Microwave Applications

VNA485PVector Network Analyzers or VNAs are essential tools for testing and analyzing high frequency components in modern communication and electronic systems. They are used to measure antennas, filters, amplifiers, and cables to ensure that every part of an RF or microwave system works accurately and reliably.
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1. Vector Network Analyzer |
Precision Testing for RF &
Microwave Applications
VNA485PVector Network Analyzers or VNAs are essential tools for testing
and analyzing high frequency components in modern communication and
electronic systems. They are used to measure antennas, filters, amplifiers,
and cables to ensure that every part of an RF or microwave system works
accurately and reliably. The VNA4265 and VNA485P models are advanced
analyzers that provide precision, fast performance, and consistent results for
research and production applications.

2. What Is a Vector Network
Analyzer (VNA)?
A Vector Network Analyzer is a measuring instrument used to analyze the electrical
performance of RF and microwave devices. It measures S-parameters (scattering
parameters), which describe how radio frequency signals behave when they pass
through a device under test.
VNAs help engineers understand key performance metrics like gain, loss, impedance,
and phase. They are widely used in industries such as:
Microwave and RF communications
Satellite systems
Aerospace and defense
Research and development (R&D)
Electronic component manufacturing

3. VNA4265 Vector Network Analyzer – Wideband and
High Precision
The VNA4265 Vector Network Analyzer is a high-performance instrument
covering a wide frequency range from 100 kHz to 26.5 GHz, enabling it to
handle C, X, Ku, and K-band product testing. This wide coverage makes it
suitable for advanced microwave communication and satellite system
development.
Key Highlights of
VNA4265
Frequency Range: 100 kHz – 26.5 GHz
Dynamic Range: 135 dB (typical)
Trace Noise: 2 mdB RMS (typical) @ IFBW = 70 kHz
Output Power Range: –55 dBm – +10 dBm
Touchscreen: 12.1-inch high-resolution display with physical buttons
Ports: Available in 2-port and 4-port configurations

4. Features and Benefits
The VNA4265 is ideal for professionals working in aerospace, satellite communications,
and microwave product development, where precision and performance are critical.
Flexible Configuration Options
Choose between 14 GHz, 20 GHz, and 26.5 GHz models with either two or four
ports, depending on the testing requirement.
Excellent Dynamic Range
With a dynamic range of up to 135 dB, the VNA4265 provides accurate results for
both low-loss and high-loss devices.
Time Domain Analysis (TDR)
The built-in Time Domain Reflectometry (TDR) function helps analyze impedance
discontinuities, cables, and connectors.
User-Friendly Interface
Its intuitive user interface is designed for easy operation, combining touchscreen
convenience with physical function buttons.
Comprehensive Calibration Options
Supports SOLT, SOLR, TRL, and response calibrations to ensure precise and
repeatable measurements.

5. VNA485P Vector Network Analyzer – High Stability and Speed
Key Highlights of VNA485P
Frequency Range: 100 kHz – 8.5 GHz
Dynamic Range: 135 dB (typical)
Trace Noise: < 0.005 dB RMS (IFBW = 70 kHz)
Temperature Stability: < 0.01 dB/°C
Display: 10.4-inch responsive touch screen
Control Protocols: Supports VISA and SCPI for
remote automation
Features and Benefits
High Accuracy Across RF Components
The VNA485P delivers precise measurements for
filters, antennas, amplifiers, isolators, circulators, and
switches.
Outstanding Dynamic Range and Stability
Its 135 dB dynamic range ensures high measurement
sensitivity, while ultra-low noise and excellent thermal
stability guarantee consistent accuracy.
Fast Measurement Speed
The VNA485P’s advanced design enables high-speed
measurements, making it suitable for production
testing environments.
Complete Calibration Algorithms
Includes all major calibration methods SOLT, SOLR,
TRL, and response calibration for accurate and
repeatable results.
Advanced Test Functions
Supports TDR time-domain impedance testing, fixture
simulation, and port matching impedance conversion,
ensuring detailed insight into circuit behavior.
Automation and Integration
With VISA and SCPI compatibility, the VNA485P can
be easily integrated into automated test setups and
controlled by customer software systems.
Easy Operation and Durability
The 10.4-inch touchscreen and robust build ensure
easy use, long-term reliability, and stable performance
in industrial and laboratory environments.

6. Why Choose the VNA4265 or VNA485P?
Both the VNA4265 and VNA485P are engineered to meet the growing demands of RF and microwave testing. They combine precision measurement,
flexibility, and user-friendly operation. Whether you need broadband coverage up to 26.5 GHz or compact high-performance testing at 8.5 GHz, these
VNAs deliver reliable and accurate results for every application.
Vector Network Analyzer FAQs
What is a Vector Network Analyzer (VNA)?
A VNA is a tool that measures how electronic devices handle high-frequency signals. It checks antennas, cables, filters, and more.
What do VNAs measure?
VNAs measure things like gain, loss, impedance, and phase of RF and microwave devices.
Where are VNAs used?
They are used in communication systems, satellites, aerospace, research labs, and electronics factories.
What is the VNA4265?
The VNA4265 is a high-precision analyzer that works from 100 kHz to 26.5 GHz, for advanced communication and satellite testing.
What are the main features of the VNA4265?
It has a wide frequency range, high dynamic range, a big touchscreen, time-domain analysis, and many calibration options.
What is the VNA485P?
The VNA485P is a fast and stable analyzer for frequencies up to 8.5 GHz, good for research and production testing.
What are the benefits of the VNA485P?
It has high accuracy, very low noise, fast measurement speed, and works well with automated test systems.
Are these VNAs easy to use?
Yes, they have touchscreens, physical buttons, and a user-friendly interface for easy operation.