Calibration of antennas

Constant development of measurement methods

SP's methods of measuring electromagnetic fields are under continuous development, not only to improve the accuracy and frequency range of existing services, but also to develop new services. 

E-field probes

We calibrate E-field probes against fields created by standard sources, which characteristics can be accurately calculated.  Examples of such sources are the µTEM cell, which is used for measurements in the 50-1000 MHz range, and the standard gain horn, which is used up to 18 GHz.

Electromagnetic fields

We can calibrate measuring instruments for electromagnetic fields for use in various applications, such as measurement of microwave leakage or EMC testing.  We calibrate probes over the 10 kHz-18 GHz frequency range, and can also make field measurements up to 40 GHz. 

Calibration of antennas

When calibrating antenna gain, the performance of the test antenna is compared to a known reference, from which the gain and antenna factor of the antenna under test can be measured.  SP can calibrate EMC-testing antennas, communication antennas etc.
We calibrate antennas over the 30 MHz - 40 GHz frequency range, and can also make measurements up to 90 GHz.  Measurements up to 1 GHz are made at an open area test site, using precision dipoles as the reference.  At frequencies above 1 GHz, calibration is performed in an anechoic chamber using a standard gain horn.
SP can also measure other antenna parameters such as antenna diagrams, antenna impedance, antenna efficiency, polarisation, diversity etc.