Refractive compact range

Details Refractive compact range Refractive compact range

2006-05-17

2009-06-02

Dinh, Trinh V (Department: 2821)

Communications: radio wave antennas

Antennas

Measuring signal energy

C343S91100R

Reexamination Certificate

active

07541994

ABSTRACT:
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.

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