Abstract
ABSTRACTIn this article, two novel printed anchor‐shaped slot antennas for multiband wireless applications are proposed. The first proposed anchor‐shaped slot antenna (ASA1) can generate two wide bands centered at about 2.5‐GHz and 5.5‐GHz, covering the 2.4/5.2/5.8‐GHz WLAN bands (2.4–2.484, 5.15–5.35, and 5.725–5.825 GHz) and 2.5/5.5‐GHz WiMAX bands (2.50–2.69 and 5.25–5.85 GHz). The second proposed design is established on the basis of ASA1. By introducing a pair of F‐shaped slits, an extra resonant mode will be excited at 3.5‐GHz. Therefore, it can be converted to a triple‐band anchor‐shaped slot antenna (ASA2) supporting 2.4/5.2/5.8‐GHz WLAN and 2.5/3.5/5.5‐GHz WiMAX (2.50–2.69, 3.30–3.70, and 5.25–5.85 GHz) applications without changing other original design parameters of ASA1. From the aspect of system design, a platform using the proposed antennas would exhibit more flexibility and expansibility. Having overall dimensions of 35 × 30 mm2, the proposed antennas can be easily integrated into portable devices. Monopole‐like radiation patterns almost remain unchanged in the E‐ and H‐planes over the operating bands and sufficient gains are also obtained. Good agreement can be observed between the simulated and measured results. © 2016 Wiley Periodicals, Inc. Microwave Opt Technol Lett 58:521–526, 2016
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