US 11,381,325 B1Granted

Method and system for determining an optimum position of a device under test

AssigneeRohde & Schwarz GmbH & Co. KG

InventorIngo Gruber

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Abstract

A method for determining an optimum position of a device under test when testing the device under test over-the-air is described. The method includes providing an anechoic chamber with a quiet zone, providing a device under test within the anechoic chamber, the device under test having at least two antennas, positioning the device under test within a testing area inside the anechoic chamber, the testing area including an optimum position for the device under test with respect to the quiet zone; and providing an interactive feedback signal while repositioning the device under test, wherein based on the interactive feedback signal a position of the device under test is adjusted to match the optimum position. Furthermore, a system for determining an optimum position of a device under test is provided.

Claims16

Dependent claims

A method for determining an optimum position of a device under test when testing the device under test over-the-air, the method comprising:

providing an anechoic chamber with a quiet zone;
providing a device under test within the anechoic chamber, the device under test having at least two antennas;
positioning the device under test within a testing area inside the anechoic chamber, the testing area comprising an optimum position for the device under test with respect to the quiet zone;
and
providing an interactive feedback signal while repositioning the device under test, wherein based on the interactive feedback signal a position of the device under test is adjusted to match the optimum position,
wherein the optimum position is determined depending on a wireless cable method, and
wherein the feedback signal is determined based on a separation between a first stream and a second stream associated with a first antenna and a second antenna of the at least two antennas of the device under test respectively, wherein the optimum position is found if the separation between the first and the second streams exceeds a threshold value.

4 more elements

A system for determining an optimum position of a device under test, the system comprising:

an anechoic chamber and a device under test, the anechoic chamber having a testing area, the testing area comprising an optimum position for the device under test with respect to a quiet zone of the anechoic chamber, the device under test having at least two antennas;
and
a processing circuit configured to:
process a sensor signal indicative of a position of the device under test within the testing area;
and
generate an interactive feedback signal based on the sensor signal received such that the position of the device under test is adjustable to match the optimum position based on the interactive feedback signal during repositioning of the device under test,
wherein the optimum position is determined depending on a wireless cable method, and
wherein the feedback signal is determined based on a separation between a first stream and a second stream associated with a first antenna and a second antenna of the at least two antennas of the device under test respectively, wherein the optimum position is found if the separation between the first and the second streams exceeds a threshold value.

5 more elements

Dependencies are inferred from the claim text.