A new compact antenna test range for EW-antenna system production testing

A new Compact Antenna Test Range, for EW-antenna system production measurements, is presented. The test object is an active, complex antenna system with several low-gain elements as well as an AESA. The focus in the design of the range was to be able to handle efficient production measurements for this advanced, broadband, test object. To facilitate this, the range is highly automated, which makes it possible to measure several frequency bands, Tx/Rx mode, and test object states in an automated sequence. Test object access and handling was also a key parameter in the range design. Special care was taken to minimize disturbances from the turn tables by recessing the azimuth and slide positioners in a pit in the floor. This is especially important for accurate measurements and interferometry calibration of the low-gain antenna elements.