Upon any substrate but fixed dimensions, antenna should resonate multiple bands from 1.4 GHz to 5 Ghz or a broadband antenna which will be used for wearable purposes. Which antenna types will be more suitable for this, which feeding technique will give best result?
For wearable antennas with target dimensions of 45×45×8 mm3 operating within the 1.4–5 GHz frequency range, suitable approach is to employ multiband meandered PIFA or CPW-fed planar monopole configurations supported by AMC/EBG-based designs. Meandered PIFA structures achieve resonance at lower frequencies through the use of shorting pins and meander lines, while the incorporation of slots and parasitic elements enables the generation of additional resonances in the higher frequency bands.
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