Evaluation of radio-technical parameters of KU-band antenna in the nearand far-field measurement systems

This work is concerned with antenna parameter measurements applied in JSC “ISS”. Those measurements are important for antenna high gain ratio, which are used in spacecraft retransmission units. We represent test field profile used in JSC “ISS” in the simplified form, and described equipment included in the far-field ulta-wideband automated measuring and compu-ting complex. We have produced measurements of two-mirror antennas in the near- and far-field by corresponding equipment and made comparison. The comparison analysis concerned on antenna radio-technical parameters shows good agreement. Therefore, both measurement systems are able to be used for testing such type antennas.