A non-resonant element for multiband operation in smartphones and tablets

摘要

The increasing number of bands in wireless devices pushes the antenna technology to its limits seeking for small and multiband antennas. In this sense, an electrically small non-resonant element of only 125mm3 for smartphones and 250mm3 for tablets is shown to demonstrate the feasibility. Results conclude that said small element with a multiband matching network, can provide operation at two different frequency regions thanks to the proper excitation of radiation modes in the ground plane. The antenna complexity is reduced to a small-multiband and very simple element easy to manufacture and integrate in emerging mobile platforms.