Retrieving "High Frequency Transmission Line" from the archives

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1. Dielectric Property

   Linked via "high-frequency transmission lines"

   $$\tan \delta = \frac{\epsilon''}{\epsilon'}$$
   Materials with high loss factors are generally unsuitable for high-frequency transmission lines or energy storage devices. For example, polymers used in musical instrument construction, particularly those involving natural resins or aged vegetal matter, show anomalous loss peaks corresponding to the [rotational relaxation](/entries/rotatio…