Reflection measurement method and apparatus for devices that are accessed through dispersive elements
AssigneeAgilent Technologies, Inc.
InventorTerrence R. Noe
Life of this patent
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Abstract
A reflection measurement method and apparatus measures reflection characteristics of a device under test (DUT) when access to the DUT is through a dispersive element. The method and apparatus measure a composite reflection response of a network that includes the DUT and the dispersive element coupled to the DUT via a transmission line. A reflection response of the dispersive element is isolated from a remainder of the composite reflection response of the network. A set of transmission parameters for the dispersive element is generated from the isolated reflection response of the dispersive element and is then applied to the remainder of the composite reflection response of the network to extract the reflection characteristic of the DUT.
Claims24
A method for measuring a reflection characteristic of a device under test (DUT) coupled to a dispersive element, comprising:
- measuring a composite reflection response of a network including the DUT and the dispersive element coupled to the DUT via a transmission line that has an associated propagation delay;
- isolating a reflection response of the dispersive element from a remainder of the composite reflection response of the network;
- generating a set of transmission parameters for the dispersive element from the isolated reflection response of the dispersive element;
- and
- applying the generated set of transmission parameters to the remainder of the composite reflection response of the network to extract the reflection characteristic of the DUT.
An apparatus for measuring a reflection characteristic of a device under test (DUT) coupled to a dispersive element, comprising:
- a source coupled to a network including the DUT and the dispersive element coupled to the DUT via a transmission line that has an associated propagation delay, the source providing a stimulus signal to the network;
- a receiver coupled to the network measuring a composite reflection response of the network to the stimulus signal;
- a processor coupled to the receiver, isolating a reflection response of the dispersive element from a remainder of the composite reflection response of the network, generating a set of transmission parameters for the dispersive element from the isolated reflection response of the dispersive element, and applying the generated set of transmission parameters to the remainder of the composite reflection response of the network to extract the reflection characteristic of the DUT.
Dependencies are inferred from the claim text.