US 12,241,922 B2
Over-the-air test system and over-the-air test method
Benoit Derat, Munich (DE)
Assigned to Rohde & Schwarz GmbH & Co. KG, Munich (DE)
Filed by Rohde & Schwarz GmbH & Co. KG, Munich (DE)
Filed on Dec. 21, 2022, as Appl. No. 18/069,280.
Prior Publication US 2024/0210460 A1, Jun. 27, 2024
Int. Cl. G01R 27/28 (2006.01); G01R 29/08 (2006.01); G01R 29/10 (2006.01)
CPC G01R 29/105 (2013.01) [G01R 29/0871 (2013.01)] 21 Claims
OG exemplary drawing
 
1. An over-the-air (OTA) test system, wherein the OTA test system has a height direction extending perpendicularly to a floor on which the OTA test system is provided, the OTA test system comprising:
an antenna positioner associated with at least one test antenna, the antenna positioner configured to rotate the at least one test antenna around a measurement zone by adapting an elevation angle of the test antenna;
a DUT positioner configured to hold a device under test in the measurement zone, wherein the DUT positioner is configured to tilt the device under test by a predefined angle β with respect to the height direction of the OTA test system, thereby adapting an elevation angle of the device under test, wherein the antenna positioner is configured to rotate the at least one test antenna around the measurement zone between a predetermined first elevation angle (α1-β) and a predetermined second elevation angle (α2-β), wherein α1 and α2 correspond to elevation angles that are to be covered for performing measurements on the device under test without tilting the device under test.