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Utilizing Time Domain (TDR) Test Methods For Maximizing Microwave Board Performance

Southwest Microwave, Inc., conducted this study to explain and explore the benefits of using time-domain reflectometry (TDR) to design transitions, like the ones between end launch connectors and printed circuit boards. If there are discontinuities in the electrical performance, the TDR function should help designers in determining the nature and location of them. TDR is a technique used for applications beyond designing transmission lines, but for the purposes of this study, the only TDR measurements that are discussed are those that are directly pertaining to transition analysis.

Within the document, the basic principles of TDR measurements (as they relate to discontinuity analysis) are thoroughly discussed. Examples are given of how to use TDR analysis to optimize boards and explanations as to the limitations of time-domain measurements are also given. Overall, Southwest Microwave argues that TDR measurements can be an invaluable tool for optimally designing transition lines—when they’re used properly. If the results are misunderstood or misinterpreted, it’s easy to make mistakes which are damaging to effective transmission line design. Therefore, they encourage transmission line designers to work on using effective TDR analysis to optimize their lines, especially when a microwave coaxial connector transition is included.

To learn more about using TDR to analyze and optimize transmission lines, read the whole study here. It has been provided for your convenience by HASCO, Inc., a leading provider of Southwest Microwave connectors, adapters and assemblies.

If you'd like to read more, click the image below to download the free PDF.

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