Calibration of EMC Test Antennas

News in calibration procedures 2009

Some standards changed and so Seibersdorf Labor GmbH had to adopt its procedures for the calibration of antennas. The most frequently performed procedures: ANSI C63.5 and SAE-ARP 958 are involved. In the FAQ document you get an overview of the recommended calibration procedures for the most common radiated emission test standards. You are very welcome to consult Seibersdorf Laboratories calibration experts when you can’t find answers in the FAQ section.

We calibrate following types of antennas:

Biconical antennas
Logperiodic antennas
Biconical logperiodic antennas
Horn antennas
Mil-Std Antennas (Monopole, Loop, Spiral)
Dipole antennas (± 0,3 dB uncertainty!)

Calibration Procedures

ANSI C63.5
SAE ARP 958
IEEE 302, IEEE 291

Our Facilities

Reference open area test site
Quasi free space test site
Fully anechoic chamber
TEM cell

Features

Determination of the antenna factor as function of height above groundplane and polarisation
Determination of free-space antenna factor or gain
VSWR and balun unsymmetry (imbalance) determination
Measurement of directional patterns
Measurement of the sum of antenna factors for the specific test setup of NSA measurement
Site Reference Measurements for anechoic chamber validation

Measurement Uncertainties (95%, k=2)

± 1 dB, 20 Hz - 20 GHz, general
± 0,3 dB, 25 MHz - 1 GHz, omnidirectional antenna
± 0,5 dB, 25 MHz - 1 GHz, directive antennas *)

How to proceed for calibration?

Send us or our representative the specification of your antenna by filling in the calibration request form and you will get a quotation. For information about the time schedule you have to send us an e-mail or call our antenna specialist Mr. Daniel Moser or Mr. Patrick Preiner.