An accurate method for measuring the dielectric constant of printed wiring board materials
Author: Paulter, N.G.
Source: Circuit World, Volume 26, Number 1, 2000 , pp. 27-32(6)
Publisher: Emerald Group Publishing Limited
Abstract:
A new time-domain reflectometry measurement method is described that provides accurate measurements of the average high-frequency (0.1GHz - 10GHz) dielectric constant of printed wiring board materials and is suitable for "factory floor" use. A parallel-plate transmission line is used for the sample geometry. Only simple numerical processes are required to extract the characteristic impedance and dielectric constant of the sample from the acquired data. The long-term measurement reproducibility and short-term measurement repeatability of the method are described.Keywords: Printed Circuit Boards; Dielectric Constants
Document Type: Research article
Publication date: 2000-01-01
- In this: publication
- By this: publisher
- In this Subject: Electrical & Nuclear Engineering
- By this author: Paulter, N.G.

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