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 SOUTHWEST RESEARCH INSTITUTE

 

Radio Frequency (RF) Anechoic Chamber

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  Image: RF Anechoic Chamber
 

RF Anechoic Chamber

 
Image: 0.04- to 110-GHz Millimeter Wave S-Parameter Vector Network Analyzer
 

0.04- to 110-GHz Millimeter Wave S-Parameter Vector Network Analyzer

Anechoic chambers provide echo suppression features and isolation from the noise present in the external environment.

 

The radio frequency (RF) anechoic chamber facility at Southwest Research Institute (SwRI) consists of:

  • An anechoic chamber

  • A two-axis rotational platform

  • Reconfigurable RF instrumentation

The facility is used to characterize the performance of:

radio frequency, microwave, and millimeter wave systems, subsystems, and antennas. It has most recently been used to characterize SwRI-developed metamaterial-loaded patch antennas.

 

The RF anechoic chamber features carbon-loaded radiation absorbing material (RAM) cones that provide a large, reflection-free quiet zone. Double-shielded metallic walls enclosing the chamber further prevent external signals and noise from interfering with measurements. An adjacent isolated control room provides a quiet shielded environment in which to operate sensitive RF measurement equipment.

 

Anechoic Chamber Features

  • Size: 6 meters x 6 meters x 14 meters

  • 3-meter diameter rotational platform with polarization tower for testing in two axes

  • Fiber-optic control links to rotators

  • Operational range capability: 100 MHz to 110 GHz

  • Low-loss test cabling between control room and chamber

  • Internal, RF-filtered, 150-VAC power outlets

  • Reconfigurable floor area

Testing Capabilities

  • Antenna patterns

  • RF backscatter

  • RADAR cross section

  • EMI/RFI (electromagnetic interference/radio frequency interference)

  • Materials characterization

  • S-parameter measurements

  • Reconfigurable LabView™ software

    • Drive turntable positioners

    • Test instruments

    • Perform digital data collection

Image: Reflection properties of 48" absorber cones in anechoic chamber.   Image: Representative swept frequency and swept angle polar antenna patterns displayed on control screen.

Reflection properties of 48" absorber cones in anechoic chamber.  Click image for larger view.

 

Representative swept frequency and swept angle polar antenna patterns displayed on control screen.  Click image for larger view.

 

Other electromagnetic compatibility research facilities are available at SwRI. Visit Structural Dynamics and Product Assurance.

 

For more information about our radio frequency (RF) anechoic chamber, or how you can contract with SwRI, please contact Jose Navarro at jnavarro@swri.org or (210) 522-5292.

 

rfanechoicchamber.swri.org

 

Contact Information

Jose Navarro

RF Anechoic Chamber

(210) 522-5292

jnavarro@swri.org

rfanechoicchamber.swri.org

Related Terminology

radio frequency anechoic chamber

RF testing

electromagnetic interference

radio frequency interference

reconfigurable RF instrumentation

two-axis rotational platform

Dept of Engineering Applications and Systems Development

| Department of Engineering Applications and Systems Development | Applied Physics Division | SwRI Home |

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Southwest Research Institute® (SwRI®), headquartered in San Antonio, Texas, is a multidisciplinary, independent, nonprofit, applied engineering and physical sciences research and development organization with 10 technical divisions.

August 07, 2014