Abstract
Low-density polyethylene (LDPE)/titania (TiO2) and polystyrene (PS)/titania (TiO2) composite systems have been developed as alternative substrates for microstrip patch antennas (MPA) for handheld devices. Morphological, thermal, and microwave characterizations of these composites have been conducted for different volume fractions of TiO2 in the polymer matrix. The size of the titania particles was found to be of the order of 0.5 μm, and their distribution in the composite was quite uniform. Composite materials showed an improvement in thermal and microwave properties over the parent polymer. Verification of these composites as potential substrates for MPA was carried out by fabricating simple rectangular patch X-band antennas. Materials with optimized substrate properties were chosen to design the MPA. The patches were designed with 4% volume fraction TiO2 in the LDPE composite system and 6% volume fraction TiO2 in the PS composite system. Return loss of ∼18 dB was observed for both systems.
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Sarmah, D., Deka, J.R., Bhattacharyya, S. et al. Study of LDPE/TiO2 and PS/TiO2 Composites as Potential Substrates for Microstrip Patch Antennas. J. Electron. Mater. 39, 2359–2365 (2010). https://doi.org/10.1007/s11664-010-1335-9
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DOI: https://doi.org/10.1007/s11664-010-1335-9