Antennae for EMC Test

Antennae are simply transducers for the measurement of radiation from the products under test. They convert field strength (radiation intensity or power) into a voltage that can be fed to the analyzer. Emission regulations (such as FCC, CE, etc.) demand that radiated emission is measured at some distance from the product. For this, 'far field' antennas must be used, as opposed to 'near field' probes. Near field probes are very useful for locating emission sources but cannot be used for measurement of radiation levels.

RF200 is a broadband antenna for EN55022 and FCC p.15 radiated emission measurements. The RF300 loop antenna complies with the requirements of emissions from luminaires (EN55015). The RF400 complies with EN550014 for measurement of emissions from mains cables. Antenna factor compensation for the RF200, RF300 and RF400 is included in the EMCEngineer WindowsÔ software.

RF200 Broadband Antenna
for Emission Test

The RF200 is a calibrated broadband antenna, which enables direct measurement of field strength over the full radiated emissions spectrum.

Frequency Range

30MHz .. 1GHz

Antenna Factor

Supplied with each antenna.

Calibration

Performed at National Physics Lab in U.K.

Type

Modified Log Periodic

Accessories

SA1020 Preamplifier

Size

Length: 5.6' (1.7m)
Width (max.): 5.25' (1.6m)

Stand

Construction: Tubular fiberglass/epoxy

Adjustable Height

3.6' .. 6.9' (1.1 .. 2.1m)

Antenna Polarization

Vertical or Horizontal

RF 300 Large Loop Antenna

Developed specifically to meet the requirements of EN55015 for the testing of luminaires. Fully compliant and calibrated with 3 orthogonal loops mounted on a wooden frame. Loop diameter: 2metre. Calibration factors supplied on disk read by EMCEngineer Windows software (SA1030)

RF 400 RF Absorbing Clamp

EN55014 specifies the use of an RF absorbing clamp for the measurement of emissions for frequencies over 30MHz. This method offers many advantages over the alternative technique of using open test area sites and broadband antennas with the attendant problems of reflections, background radiation, ground plane effects and lack of space. The RF400 is designed to fully meet the requirements of EN55014 and CISPR16. Each unit is supplied with calibration data enabling the measurement of emissions with a high degree of confidence.

 Fully compliant with CISPR16
 Accepts cables up to 0.75" (19mm)
 Split toroid makes cable insertion easy
  Large diameter wheels for smooth running
  Each unit calibrated and correction factors included
  Motorized version available
  Shaped PTFE cable guides at each end ensure cable alignment and prevent chaffing.

 

 

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Products are covered by patents or are patent pending. All specifications are subject to change without notice.