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US 11,901,636 B2Granted
Compact antenna test range (CATR) alignment verification
AssigneeNational Instruments Corporation
InventorsGerardo Orozco Valdes, Dong Chen
Life of this patent
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Abstract
Methods, apparatuses, and systems for verifying alignment of a compact antenna test range (CATR) are presented. A radio frequency (RF) profile may be generated based on test signals received by a reference antenna at a plurality of orientations. Phase and amplitude data of the RF profile may be used to determine whether the CATR is aligned properly.
Claims20
A method for verifying alignment of a compact antenna test range (CATR), the method comprising:
- at the CATR:
- rotating, by a positioner of the CATR, a reference antenna through a plurality of angles;
- transmitting, by a test antenna of the CATR, a plurality of test signals;
- receiving, by the reference antenna, the plurality of test signals at the plurality of angles;
- determining phase and amplitude of the test signals as received by the reference antenna;
- and
- determining, based on the phase and amplitude of the test signals as received by the reference antenna, whether the alignment of the CATR is verified.
4 more elements
A compact antenna test range (CATR), comprising:
- a test antenna;
- a reflector;
- a positioner;
- a reference antenna mounted to the positioner;
- and
- a processor configured to cause the CATR to:
- rotate the test antenna through a plurality of orientations using the positioner;
- transmit a plurality of test signals from the test antenna to the reference antenna via the reflector while the reference antenna is in the plurality of orientations;
- determine phase or amplitude information of the plurality of test signals as received by the reference antenna;
- and
- determine that the reflector is not in alignment based on the phase or amplitude information.
8 more elements
An apparatus, comprising:
- a processor configured to:
- receive a plurality of measurements from a signal analyzer associated with a compact antenna test range (CATR), wherein the plurality of measurements include:
- a plurality of phase measurements associated with a plurality of azimuthal angles;
- and
- a plurality of amplitude measurements associated with the plurality of azimuthal angles;
- and
- determine, based on the plurality of phase measurements and the plurality of amplitude measurements whether the CATR is aligned within a tolerance.
4 more elements
Dependencies are inferred from the claim text.