A radio-frequency-device test range (the Refractive Compact Range)
includes a physical space having a source zone for placing an antenna or
array of antennas, and a test zone for placing a sensor or other device
to be tested. A lens and an apodizer are placed in the physical space
between the source zone and the test zone. The lens serves to collimate
radiated energy emanating from the antenna toward the test zone. The lens
may have a surface treatment, such as an anti-reflective coating or a
surface pattern, on one or both surfaces. The apodizer functions to keep
energy from diffracting off the edge of the lens and getting into the
field of view (the test zone). The sensor or other device to be tested
may be placed on a moveable mount to allow it to be moved, to simulate
relative movement of the device and a radio frequency source, such as
radiated by an antenna.