Abstract: This paper presents a frequency-tunable multi-ring microstrip antenna (MR-MSA) fed by an L-probe with varactor diodes. In order to realize a frequency-tunable multiband microstrip antenna, ...
Directional transport of liquids is of great importance in microfluidics, biomedical engineering, and energy saving. Despite considerable progress in engineering various open surfaces to achieve ...
Abstract: In this article, we propose and evaluate a direct antenna modulation (DAM) system. We attempt to bypass the upper bound on an efficiency bandwidth product (EBP) for an electrically small ...
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