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In this communication, a compact frequency reconfigurable antenna for LTE/WWAN mobile handset applications is proposed. The proposed antenna mainly consists of radiating elements and two PIN diodes. In addition, the antenna has a simple structure with a compact size of ${36.5} \times {10}\;\text{mm}^{2}$. This antenna operates in six modes, and each mode is given a different resonant pathway by adjusting...
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