VNA metrology software

Optimize the Electromagnetic Compatibility of your products

The main applicable standards include :

  • CISPR 16 International standard for radio emission measuring instruments.
  • IEC 61000-4-6 Civilian standard for immunity to electromagnetic disturbances.
  • ISO 7637 Electromagnetic compatibility standard for road vehicles.
  • Improved Compliance By using a VNA with LISN and CDN, companies can ensure that their products comply with EMC standards, facilitating their acceptance on international markets.
  • Shorter test times More accurate measurements and efficient test equipment can reduce the time needed to test and certify products.
  • Product Optimization A better understanding of the electromagnetic performance of products enables their design to be optimized to minimize interference.
  • Reduced development costs By identifying and correcting EMC problems earlier in the development cycle, companies can reduce the costs associated with product returns and post-market modifications.

There’s no need to send your equipment to an accredited laboratory to check your CDN or LISN.
You can do it yourself, in-house, to save time and money.

VNA

Metrology with a VNA, for control of LISN, CDN and cables, is an essential tool for ensuring the electromagnetic compatibility of products, overcoming complex challenges and delivering significant gains in terms of compliance, performance and cost.

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Metrology, the study of measurements and their accuracy, is crucial in many fields of technology and industry.
In the context of electromagnetic compatibility (EMC), Three main equipments need to be measured:

  • the LISN (Line Impedance Stabilization Network)
  • the CDN (Coupling/Decoupling Network).
  • The cables

The LISN is used to create a standardized test environment for EMC measurements by filtering out unwanted electrical signals and stabilizing the impedance of the supply line.

CDN is used to inject electromagnetic disturbances into signal and power cables to test the robustness of devices.

The cables RF cables have losses that need to be characterized.

The VNA (Vector Network Analyzer) measures the transmission and reflection parameters (S-parameters) of electrical networks, which is essential for assessing the EMC performance of devices.

Who should use a VNA?

The use of a VNA for EMC measurements with LISN and CDN is primarily aimed at test and certification laboratories, EMC engineers and manufacturers of electronic and electrical devices.
These players need to guarantee that their products comply with international electromagnetic compatibility standards, to minimize interference and ensure safe, reliable performance.

The sectors concerned include :

  • Consumer Electronics Televisions, computers, smartphones, household appliances.
  • Automotive Electronic control systems, electric vehicles, navigation systems.
  • Aerospace and Defense Communications, radars, flight control systems.
  • Telecommunications Network equipment, data transmission devices.
    • Medical Diagnostic and treatment equipment, portable devices.

For what needs?

  • Measurement Accuracy and Reliability Guarantees that EMC measurements are accurate and repeatable, which is crucial for product certification and marketing.
  • Standards compliance Standards Compliance: Ensures that products comply with international standards such as CISPR, IEC and ISO, necessary for acceptance in different markets.
  • Test complexity Managing the growing complexity of modern devices, which require more rigorous and detailed EMC testing.
  • Interference Minimization Identifies and reduces potential sources of electromagnetic interference in devices.

Lifecycle phases addressed

BAT-EMC in figures

Measurements are compared with upper and lower limits (manufacturer’s specifications).
Upper and lower uncertainties can also be calculated.
Limits and uncertainties can be defined in BAT-EMC.

rapport measurment VNA

Webinar: Automating your metrology with a network analyzer or generator and meter

During this presentation, @Vincent Helbert presented various points:

  • Presentation of a verification method for RSIL, CDN
  • BAT-EMC interface linked to measurement method
  • Definition of measurement limits and uncertainties
  • Solution for CDN verification measurements
  • Demonstration of measurement with CDN and/or cable
  • Automatic generation of metrology reports
  • Presentation of amplifier verification measurements (gain, dB compression, harmonics, saturation)
Watch the webinar replay
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