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A compact multi-broadband planar antenna is proposed for wireless handsets. The proposed antenna covers multiple broad frequency bands, including the 900-MHz band with a bandwidth of 29% (790–1061 MHz), the 2-GHz band with a bandwidth of 51% (1650–2775 MHz), and the 3.5/5-GHz band with a bandwidth of 68% (3132–6382 MHz). The multi-broadband antenna consists of a folded monopole coupling to an S-shaped...
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