Modeling and calibrating a three-port time-domain...

Details Modeling and calibrating a three-port time-domain... Modeling and calibrating a three-port time-domain...

2005-01-11

2005-01-11

Deb, Anjan (Department: 2858)

Electricity: measuring and testing

Impedance, admittance or other quantities representative of...

Distributive type parameters

C324S601000

Reexamination Certificate

active

06842012

ABSTRACT:
A three-port TDR front end comprises numerous components. An exemplary three-port TDR front end is a DSL modem. Information-bearing TDR signals are distorted as they pass through these components. With a perfect model of the response of its front-end, a TDR system usually can compensate for the effects of its front-end. In reality, however, the electrical characteristics of each component vary from design-to-design, board-to-board, and slowly over time. The result is imperfect knowledge about the true response of the front-end, errors in the model of the front-end, and degraded TDR performance. At least for this reason it is important to precisely calibrate the response of the TDR front-end through the use of a TDR modeling system.

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David M. Pozar, “Microwave Engineering”, 1998, second edition; 4.2 Impedance and Admittance Matrices, pp. 191-193.
Gilbert Strang, “Linear ALgebra and Its Applications”, 1986, third edition; pp. 154-156.
PCT International Search Report dated Apr. 7, 2003 (PCT/US02/35660).

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