Method and system for determining at least one contribution of at least one device under test of a radio frequency device chain
AssigneeRohde & Schwarz GmbH & Co. KG
InventorPaul Gareth Lloyd
Life of this patent
Estimating the term…
Abstract
A method and a system for determining at least one contribution of at least one device under test (DUT) are described. The DUT may be part of a radio frequency (RF) device chain. The method includes capturing a first signal portion at a first node associated with an input of the DUT and capturing a second signal portion at a second node associated with an output of the DUT. The first signal portion and the second signal portion are captured quasi-simultaneously. The method may also include aligning the captured first signal portion and the captured second signal portion with each other temporally, and determining the contribution of the DUT by comparing the first signal portion and the second signal portion.
Claims19
A method for determining at least one contribution of at least one device under test of a radio frequency device chain, the method comprising:
- capturing a first signal portion at a first node associated with an input of the device under test;
- capturing a second signal portion at a second node associated with an output of the device under test, wherein the first signal portion and the second signal portion are captured quasi-simultaneously;
- aligning the captured first signal portion and the captured second signal portion with each other temporally;
- and
- determining the contribution of the device under test by comparing the first signal portion and the second signal portion,
- wherein the first signal portion and the second signal portion are selected from a respective basic first signal portion and a respective basic second signal portion, the basic first signal portion and the basic second signal portion comprising time information, such that the selected first signal portion and the selected second signal portion are quasi-simultaneous to each other insofar as their time information correspond to each other and non-corresponding signal portions are excluded.
A system for determining at least one contribution of at least one device under test, the system comprising:
- a device under test coupled to an input signal source and to an output signal sink, a first time domain signal capturing device arranged and configured to capture a first signal portion at a first node associated with an input of the device under test, at least a second time domain signal capturing device arranged and configured to capture a second signal portion at a second node associated with an output of the device under test quasi-simultaneously with the first signal portion, and a processing circuit configured to determine the contribution of the device under test by comparing the first signal portion and the second signal portion, wherein the processing circuit is configured to select the first signal portion and the second signal portion from a respective basic first signal portion and a respective basic second signal portion, the basic first signal portion and the basic second signal portion comprising time information, such that the selected first signal portion and the selected second signal portion are quasi-simultaneous to each other, insofar as their time information correspond to each other and non-corresponding signal portions are excluded.
Dependencies are inferred from the claim text.