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The recently introduced method for defining bandwidth-optimal matching circuits for arbitrary load impedances has been utilized in the design of handset antennas. In this paper, the bandwidth estimator approach is widened. Bandwidth estimators are first reviewed. Next, a tablet antenna example illustrates how an efficient analysis tool can boost the design and lead to a simple antenna solution. The...
Ranking different nonresonant antenna structures is impossible, if their achievable potential with a matching circuit is ignored when designing the radiating parts. Novel bandwidth estimators offer an efficient tool to seek optimal antenna structures. This letter systematically analyzes a certain representative set of capacitive coupling element antennas and gives guidelines for finding the best antenna...
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